- Comparative analysis of passive play and torque expression in self-ligating and traditional lingual bracketsby Paolo Albertini on 29 Giugno 2021 at 10:00
CONCLUSIONS: STb and ALIAS brackets generated the lowest passive play; STb and In-Ovation L brackets showed the lowest angle of play at the greatest torque expression. These measurements allow to understand the accuracy of lingual systems and at the same time the amount of overcorrections to be applied in the setup in order to obtain high quality orthodontic treatments.
- Comparison of the accuracy of digital face scans obtained by two different scannersby Federica Pellitteri on 7 Aprile 2021 at 10:00
CONCLUSIONS: Three-dimensional scans of the facial surface provide an excellent analytical tool for clinical evaluation; it does not appear that one or the other of the measuring tools is systematically more accurate, and the cheeks are the area with the highest average percentage of surface in the highly reproducible range.
- The Hybrid Aligner Approach for Extrusion and Rotation of Posterior Teethby Mario Palone on 6 Aprile 2021 at 10:00
- Association of the mid-palatal suture morphology to the age and to its density: A CBCT retrospective comparative observational studyby Anna Colonna on 31 Marzo 2021 at 10:00
CONCLUSION: The mid-palatal suture density ratio and the stage of mid-palatal suture maturation has the potential to become useful in clinical practice. In fact, despite the correlation between MPS maturation stage and age, the latter parameter cannot be used as a clinical discriminator due to the great variability between subjects. It is therefore advisable to assess each patient individually on CBCT scans in order to determine treatment choices.
- Dual-section versus conventional archwire for en-masse retraction of anterior teeth with direct skeletal anchorage: a finite element analysisby Ryo Hamanaka on 26 Febbraio 2021 at 11:00
CONCLUSIONS: The use of dual-section archwire might bring some biomechanical advantages as it allows to apply retraction force at a considerable lower height, and with a reduced occlusal plane rotation, compared to the conventional archwire. Clinical studies are needed to confirm the present results.
- Tandem Skeletal Expander and MAPA Protocol for Palatal Expansion in Adultsby B Giuliano Maino on 21 Gennaio 2021 at 11:00
- Class II subdivision with skeletal transverse maxillary deficit treated by single-sitting bone-borne applianceby Luca Lombardo on 8 Dicembre 2020 at 11:00
This case report describes orthodontic treatment including both skeletal maxillary expansion and unilateral distalization by means of a single bone-borne appliance followed by clear aligner therapy in a young adult patient. A surgical guide was digitally designed and three-dimensionally printed to facilitate the placement of four miniscrews in the palatal vault. The miniscrews were fitted and the bone-borne appliance was delivered in a single clinical appointment. The postexpansion photographic...
- The perceived impact of the COVID-19 pandemic on dental undergraduate students in the Italian region of Emilia-Romagnaby Luigi Generali on 3 Dicembre 2020 at 11:00
CONCLUSION: The results of this survey could be used to train students to a correct risk assessment. Students reported experiencing concern whilst thinking of COVID-19 and 6.5% of them showed symptoms related to high levels of anxiety. These data may guide Universities in trying to reduce students' anxiety by means of correct communication strategies.
- Assessment of stiffness and load deflection of orthodontic miniscrews used for palatal anchorage: An in vitro biomechanical studyby Anna Colonna on 2 Ottobre 2020 at 10:00
CONCLUSION: This in vitro experimental study showed strong correlations between deformation load and miniscrew geometry, insertion angle and distance from the synthetic block, results that should be considered when planning miniscrew insertion in order to reduce the risk of unwanted fracture.
- Short-term variation in the subgingival microbiota in two groups of patients treated with clear aligners and vestibular fixed appliances: A longitudinal studyby Luca Lombardo on 23 Settembre 2020 at 10:00
CONCLUSION: The type of orthodontic appliance influences the subgingival microbiota. TBL increased in the FA group but not in the CA group, although the levels of the individual periodontal pathogenic bacteria species did not significantly increase during the observation period.
- Lower incisor extraction therapy in a complex case with an ankylosed tooth in an adult patient: A case reportby Mario Palone on 19 Settembre 2020 at 10:00
This case report describes a successful orthodontic therapy of an adult female treated by mandibular central incisor extraction and vestibular fixed appliances. The patient presented a skeletal Class I with normodivergent facial pattern, Class II subdivision dental relationship, extremely deep Curve of Spee and severe overbite. Moreover, during the treatment, the upper left first molar does not respond to orthodontic forces due to tooth ankylosis, augmenting the difficulty of this case. Despite...
- Fluorescence-aided composite removal during lingual bracket debondingby Paolo Albertini on 10 Luglio 2020 at 10:00
CONCLUSIONS: The fluorescence-aided composite removal during lingual brackets debonding minimizes the risks described in literature and it is an easier, more accurate, reliable, noninvasive, inexpensive, and time-saving method.
- Spider link: a palatal skeletal anchorage systemby Giuliano Maino on 20 Giugno 2020 at 10:00
- Early class III treatment with hybrid rapid palatal expander combined with facemaskby Luca Lombardo on 15 Giugno 2020 at 10:00
BACKGROUND: Class III patients are characterized by a deficiency of the maxilla and/or a prognathism of the mandible and require early treatment.
- MicroCT X-ray comparison of aligner gap and thickness of six brands of aligners: an in-vitro studyby Luca Lombardo on 12 Maggio 2020 at 10:00
CONCLUSIONS: There are differences between the six aligner systems examined in terms of 2D and 3D measurements of aligner thickness and gap.
- Tooth Whitening in Association with Clear Aligner Treatmentby Teresa Oliverio on 14 Febbraio 2020 at 11:00
- Analysis of tooth anatomy in adults with ideal occlusion: A preliminary studyby Mario Palone on 2 Febbraio 2020 at 11:00
CONCLUSIONS: There were considerable differences both between and within racial groups in crown height, crown width, and numbers of clusters, which should be taken into account during bonding. Although single-bracket placement guides specific for ethnicity may be feasible for the mandibular arch, the significant diversity in number of clusters in the maxillary arch indicates that more accurate bracket placement guides that take into account such heterogeneity are required.
- Smartphone-based application for EMA assessment of awake bruxism: compliance evaluation in a sample of healthy young adultsby Anna Colonna on 25 Ottobre 2019 at 10:00
CONCLUSIONS: This investigation is the first attempt to assess individual compliance with EMA for reporting awake bruxism. Results suggest that a smartphone-based strategy can have interesting potential. The compliance rate reported in this study will serve as a comparison standpoint for future investigations.
- Marsupialization of a dentigerous cyst followed by orthodontic traction of two retained teeth: A case reportby Ivano Maltoni on 27 Aprile 2019 at 10:00
This case report discussed a combined surgical-orthodontic rescue of two impacted teeth in a large dentigerous cyst by the means of fixed orthodontic appliances. After careful evaluation of the 3D radiographic exams, extraction of the deciduous elements was carried out, followed by marsupialization and orthodontic traction of the impacted teeth. Surgical procedures, pre- and posttreatment records and orthodontic biomechanical evaluations are discussed.
- Correlation Between Sleep-Time Masseter Muscle Activity and Tooth Wear: An Electromyographic Studyby Daniele Manfredini on 24 Aprile 2019 at 10:00
CONCLUSION: The null hypothesis of an absence of correlation between tooth wear and sMMA could not be rejected, implying that tooth wear cannot be used as an indicator of ongoing SB or sMMA. Future studies taking into account the multifaceted nature of tooth wear and the complex natural course of sleep phenomena are encouraged to investigate the issue further, at the individual level.
- Self-reported awake bruxism and chronotype profile: a multicenter study on Brazilian, Portuguese and Italian dental studentsby Junia Maria Serra-Negra on 26 Marzo 2019 at 10:00
Objective: To assess the association between self-reported awake bruxism (AB) and the chronotype profile among Brazilian, Portuguese, and Italian dental students.Methods: A cross-sectional study involving 205 dental students was developed. Self-reported AB as well as information on sleep characteristics were collected from a questionnaire. The Morningness-Eveningness Questionnaire (MEQ) was used to measure the chronotype profile. Descriptive statistical analysis, the chi-square test, and...
- Class II treatment by palatal miniscrew-system appliance: A case reportby Luca Lombardo on 13 Marzo 2019 at 10:00
This case shows that using a rapid palatal expander (RPE) and then a pendulum appliance anchored to palatal miniscrews is an option for improving treatment management in a noncompliant patient requiring maxillary expansion and molar distalization in the late mixed dentition. First, an RPE was used to expand the maxillary arch. Then, a modified pendulum appliance was used to distalize the maxillary first permanent molars. Optimal positioning of two palatal miniscrews enabled both appliances to be...
- Corrigendum: Does low-frequency vibration have an effect on aligner treatment? A single-centre, randomized controlled trialby Luca Lombardo on 17 Gennaio 2019 at 11:00
- Does low-frequency vibration have an effect on aligner treatment? A single-centre, randomized controlled trialby Luca Lombardo on 14 Novembre 2018 at 11:00
CONCLUSIONS: Considering all tooth and movement types of the 45 participants, the mean total imprecision was 2.1 ± 0.9 degrees, with respect to a mean prescription of 5.7 ± 2.2 degrees. There was no difference in accuracy between replacing the aligners accompanied by low-frequency vibration every 7 days and replacing them every 14 days without vibration. Moreover, low-frequency vibration seemed to improve the accuracy of a conventional protocol in terms of upper incisor rotation.
- Class II subdivision correction with clear aligners using intermaxilary elasticsby Luca Lombardo on 2 Settembre 2018 at 10:00
CONCLUSION: Combining aligners with appropriate auxiliaries is an efficacious means of resolving orthodontic issues such as class II, dental crossbite, and crowding in a time-frame comparable to that of conventional fixed orthodontics. Furthermore, this system is associated with optimal oral hygiene and excellent esthetics.
- Comparative analysis of jaw morphology and temporomandibular disorders: A three-dimension imaging studyby Anna Colonna on 15 Agosto 2018 at 10:00
Objective: To investigate the association between volumetric measurements of craniofacial morphology and temporomandibular disorders (TMDs). Methods: Computerized tomography (CT) scans of 20 individuals aged 18 to 40 with (TMD group) or without TMJ pain (control group) were gathered based on a case-control design. Three-dimensional reconstructions were performed to evaluate the gonial angle, condylar volume, and the distance between the posterior edge of the condyle and the sigmoid notch....
- Effects of invisible orthodontic retainers on masticatory muscles activity during sleep: a controlled trialby Daniele Manfredini on 24 Luglio 2018 at 10:00
CONCLUSIONS: Findings suggest the absence of relevant effects of invisible orthodontic retainers on sMMA in healthy individuals during the short-term period.
- Orthodontic space closure vs. implant-borne crowns in patients with congenitally missing maxillary lateral incisorsby Ute E Schneider on 29 Giugno 2018 at 10:00
- Class III malocclusion and bilateral cross-bite in an adult patient treated with miniscrew-assisted rapid palatal expander and alignersby Luca Lombardo on 2 Maggio 2018 at 10:00
This case report describes the use of a miniscrew-assisted rapid palatal expander and aligners to correct bilateral cross-bite and crowding in an adult patient with a Class III skeletal pattern. A digitally designed surgical guide was three-dimensionally printed and used to accurately insert four miniscrews into the palate; these were employed to anchor a novel miniscrew-assisted rapid palatal expander appliance without any dental anchorage. Cone-beam computed tomograms before and after...
- Skeletal and dentoalveolar effects of hybrid rapid palatal expansion and facemask treatment in growing skeletal Class III patientsby Giuliano Maino on 7 Febbraio 2018 at 11:00
CONCLUSIONS: The use of a hybrid-anchorage expander followed by 4 months of facemask treatment improves the skeletal Class III relationship with minimal dental effects, even in older patients (mean age, 11 years 4 months, ± 2.5 years).
- Relationship of self-reported sleep bruxism and awake bruxism with chronotype profiles in Italian dental studentsby Júnia Maria Serra-Negra on 30 Gennaio 2018 at 11:00
CONCLUSION: There was no association between possible SB and AB or the chronotype profiles among Italian dental students.
- Predictability of orthodontic movement with orthodontic aligners: a retrospective studyby Luca Lombardo on 14 Novembre 2017 at 11:00
CONCLUSIONS: Without the use of auxiliaries, orthodontic aligners are unable to achieve programmed movement with 100% predictability. In particular, although tipping movements were efficaciously achieved, especially at the molars and premolars, rotation of the lower canines was an extremely unpredictable movement.
- Comparative SEM analysis of nine F22 aligner cleaning strategiesby Luca Lombardo on 8 Agosto 2017 at 10:00
CONCLUSIONS: Of the nine cleaning strategies examined, only that involving 5 min of ultrasonication at 42 k Hz combined with a 0.3% germicidal cationic detergent was observed to be statistically effective at removing the bacterial biofilm from the surface of F22 aligners.
- From Planning to Delivery of a Bone-Borne Rapid Maxillary Expander in One Visitby B Giuliano Maino on 28 Giugno 2017 at 10:00
- Dental Angle class asymmetry and temporomandibular disordersby Daniele Manfredini on 14 Gennaio 2017 at 11:00
CONCLUSIONS: It can be suggested that an association between dental Angle class asymmetry and TMDs does not exist and that the role of dental asymmetries as a factor correlated with the presence of TMD signs and symptoms is minimal.
- Nonextraction Treatment of an Open Bite with a Preadjusted Lingual Appliance and Intermaxillary Elasticsby Enrico Albertini on 27 Novembre 2016 at 11:00
- Adverse effects of lingual and buccal orthodontic techniquesby Luca Lombardo on 23 Novembre 2016 at 11:00
- Evaluation of the stiffness characteristics of rapid palatal expander screwsby Luca Lombardo on 18 Ottobre 2016 at 10:00
CONCLUSIONS: The expanders tested demonstrated stiffness characteristics compatible with opening of the palatine sutures in pre-adolescent patients. The stiffness of such devices can be further increased during the construction phase.
- Systematic review for orthodontic and orthopedic treatments for anterior open bite in the mixed dentitionby Lucia Pisani on 13 Settembre 2016 at 10:00
CONCLUSIONS: A more robust approach to trial design in terms of methodology and error analysis is needed. Besides, more studies with longer periods of follow-up are required.
- Stiffness comparison of mushroom and straight SS and TMA lingual archwiresby Luca Lombardo on 6 Settembre 2016 at 10:00
CONCLUSIONS: The stiffness of an archwire is a function of its diameter, length and the alloy it is made from. In lower lingual wires, there is little difference in stiffness between mushroom and straight wires, but in upper wires, the straight version is considerably stiffer. The greater bearing effect exhibited by the straight wire in the working and finishing phases makes it less susceptible to bowing effect and therefore preferable for sliding mechanics during en masse retraction,...
- Esthetic evaluation of implants vs canine substitution in patients with congenitally missing maxillary lateral incisors: Are there any new insights?by Ute Schneider on 3 Settembre 2016 at 10:00
CONCLUSIONS: Perceptions of dental esthetics can vary between dental professionals and laypersons. Investigating each patient's esthetic expectations is thus important, but in the patient's best interest, esthetic and functional aspects should be carefully weighed during comprehensive treatment planning.
- Objective assessment of compliance with intra- and extraoral removable appliancesby Angela Arreghini on 11 Agosto 2016 at 10:00
CONCLUSIONS: Compliance is generally very poor in young patients, regardless of their gender and psychological maturity. Although awareness of monitoring does not appear to boost compliance, such systems may be a valuable means of providing a dentist with objective information regarding their patients' compliance.
- Assessment of Anxiety and Coping Features in Bruxers: A Portable Electromyographic and Electrocardiographic Studyby Daniele Manfredini on 30 Luglio 2016 at 10:00
CONCLUSION: These findings support the study hypothesis only in part and confirm the absence of a clear-cut relationship between SB and psychological features.
- Preliminary biometric analysis of mesiodistal tooth dimensions in subjects with normal occlusionby Luca Lombardo on 2 Luglio 2016 at 10:00
CONCLUSION: Although the Bolton index is useful for identifying dentodental discrepancies in most patients, cluster analysis enabled the mandibular and maxillary tooth dimensions of the male and female subjects to be divided into 3 general classes (clusters) and the precise location of the discrepancies to be pinpointed.
- Stress relaxation properties of four orthodontic aligner materials: A 24-hour in vitro studyby Luca Lombardo on 18 Giugno 2016 at 10:00
CONCLUSIONS: Orthodontic aligner performance is strongly influenced by the material of their construction. Stress release, which may exceed 50% of the initial stress value in the early hours of wear, may cause significant changes in the behavior of the polymers at 24 hours from the application of orthodontic loads, which may influence programmed tooth movement.
- Quantitative cone-beam computed tomography evaluation of premaxilla and symphysis in Class I and Class III malocclusionsby Luca Lombardo on 21 Aprile 2016 at 10:00
CONCLUSIONS: Our findings confirm that Class III patients have little periodontal support at the upper and lower incisors, irrespective of the amount of symphyseal leeway space available, and any tooth movement must therefore be carefully planned and monitored.
- A Three-Dimensional Digital Insertion Guide for Palatal Miniscrew Placementby B Giuliano Maino on 27 Febbraio 2016 at 11:00
- Caries prevention during orthodontic treatment: In-vivo assessment of high-fluoride varnish to prevent white spot lesionsby Federico Perrini on 2 Febbraio 2016 at 11:00
CONCLUSIONS: Periodic application of fluoride varnish can offer some protection against white spots, but not to a statistically significant degree if the patients have excellent oral hygiene.
- Load deflection characteristics of square and rectangular archwiresby Angela Arreghini on 1 Febbraio 2016 at 11:00
CONCLUSIONS: In archwires of the same cross-section, steel is always stiffer than TMA and NiTi, and super-tempered steel is always stiffer than conventional steels. In archwires of the same material, the stiffness increases with the cross-section, in particular with its height.
- Optical properties of orthodontic aligners--spectrophotometry analysis of three types before and after agingby Luca Lombardo on 20 Novembre 2015 at 11:00
CONCLUSIONS: Commercial aligners possess significantly different optical, and therefore aesthetic, properties, both as delivered and following aging.
- Comparison of dental and alveolar arch forms between different ethnic groupsby Luca Lombardo on 8 Novembre 2015 at 11:00
CONCLUSIONS: There are very significant differences in arch form between the two ethnic groups considered, and the range of pre-formed archwires on the market does not provide for the anatomical variability of patients.
- Orthodontics is temporomandibular disorder-neutralby Daniele Manfredini on 30 Ottobre 2015 at 10:00
CONCLUSIONS: Findings confirmed the substantial absence of clinically significant effects of orthodontics as far as TMD is concerned. The very low correlation values of a negative or positive history of ideal or nonideal orthodontics with the different TMD diagnoses suggest that orthodontic treatment could not have a true role for TMD.
- Coordinated logopedic and lingual-orthodontic treatment of an open-bite caseby Enrico Albertini on 13 Agosto 2015 at 10:00
- Temporomandibular Joint Disorders in Patients With Different Facial Morphology. A Systematic Review of the Literatureby Daniele Manfredini on 10 Agosto 2015 at 10:00
CONCLUSIONS: The quality of the available literature is not adequate to provide an evidence base on the topic. Despite the heterogeneity of design and findings of the reviewed articles, it seems reasonable to suggest that skeletal Class II profiles and hyperdivergent growth patterns are likely associated with an increased frequency of TMJ disc displacement and degenerative disorders.
- Three-dimensional assessment of teeth first-, second- and third-order position in Caucasian and African subjects with ideal occlusionby Luca Lombardo on 11 Giugno 2015 at 10:00
CONCLUSIONS: Race and ethnicity have a strong influence on values of tip, torque and in-out. This is translated as a more positive tip in Caucasian subjects and a more positive torque in those of African descent (greater proclination of the incisors). Finally, with respect to the values reported by Andrews, we found a tendency to more positive mean tip (except for at the upper second molars and lower incisors) and less negative torque in the posterior sectors.
- Determining shapes and dimensions of dental arches for the use of straight-wire arches in lingual techniqueby Silvana Allegrini Kairalla on 27 Febbraio 2015 at 11:00
CONCLUSION: The straight-wire arch shape used in the lingual straight wire technique is a parabolic-shaped arch, slightly flattened on its anterior portion. Due to similarity among dental arch sizes shown by males and females, a more simplified diagram chart was designed.
- Optimal parameters for final position of teeth in space closure in case of a missing upper lateral incisorby Luca Lombardo on 28 Novembre 2014 at 11:00
CONCLUSIONS: The following prescriptions are advisable: tip 5°, torque 8° and in-out 2.5 for U1; tip 9°, torque 3° and in-out 3.25 for U3; tip 10°, torque -8° and in-out 3.75 for U4; and tip 5°, torque -8° and in-out 4 for U5. Andrews' prescription is suitable for the lower jaw, except for at L6. It is also advisable to execute selective grinding (1.33±0.5 mm) and extrusion (0.68±0.23 mm) on the upper canine during treatment, and the first premolar requires some intrusion (0.56±0.30 mm).
- Comparative analysis of real and ideal wire-slot play in square and rectangular archwiresby Luca Lombardo on 19 Novembre 2014 at 11:00
CONCLUSIONS: The archwire-slot play was greater than the ideal for each archwire considered, inevitably leading to a loss of information within the system.
- Torque expression capacity of 0.018 and 0.022 bracket slots by changing archwire material and cross sectionby Angela Arreghini on 21 Ottobre 2014 at 10:00
CONCLUSIONS: The dimensional precision of orthodontic brackets and archwires and the rigidity of the latter have a profound influence on the torque expression of pre-angled appliances.
- 3D FEM comparison of lingual and labial orthodontics in en masse retractionby Luca Lombardo on 21 Giugno 2014 at 10:00
CONCLUSIONS: Lingual vs. labial bracket placement influences the pattern of tooth movement, but the stress that occurs around the teeth can be accurately mapped using a 3D FEM model.
- Frictional resistance exerted by different lingual and labial brackets: an in vitro studyby Luca Lombardo on 12 Dicembre 2013 at 11:00
CONCLUSIONS: Friction resistance is influenced not only by the bracket type, type of ligation, and wire diameter but also by geometric differences in the brackets themselves.
- Changes in the oral environment after placement of lingual and labial orthodontic appliancesby Luca Lombardo on 12 Dicembre 2013 at 11:00
CONCLUSIONS: Lingual and labial orthodontic appliances showed a different potential in modifying the investigated clinical parameters: patients wearing STb lingual orthodontic appliance had more plaque retention 4 and 8 weeks after bonding, while there were more gingival inflammation and more S. mutans counts 8 weeks after bonding. No differences were found between the two groups as regards the Lactobacillus counts, the salivary flow rate, and saliva buffer capacity.
- Cone-beam computed tomography evaluation of periodontal and bone support loss in extraction casesby Luca Lombardo on 12 Dicembre 2013 at 11:00
CONCLUSIONS: In the present study, extractive orthodontic treatment appeared to predispose patients to a greater degree of root resorption. Indeed, the bone at the extraction site showed greater resorption in the study group with respect to the control group, and the appearance of intraosseous defects was noted in the former.
- Dental and alveolar arch forms in a Caucasian population compared with commercially available archwiresby Luca Lombardo on 26 Novembre 2013 at 11:00
CONCLUSIONS: None of the commercial archwires examined faithfully represented the shape of the 'ideal' dentition we calculated, particularly at the molars and canines. The bone structure of the mandibular support cannot be used as a guide to the shape of the arch form during orthodontic treatment.
- Authors' responseby Davide Mirabella on 6 Agosto 2013 at 10:00
- Comparison of adhesion forces developed by foil mesh of various dimensions applied in combination with composites of different viscosityby Luca Lombardo on 23 Luglio 2013 at 10:00
CONCLUSIONS: Both the density of the composite and the gauge of a mesh bracket base are able to influence bond strength and the bond failure interface.
- A landmark for monitoring the progress of a bonded palatal expanderby Enrico Albertini on 11 Maggio 2013 at 10:00
- Intra-arch widths: a meta-analysisby Luca Lombardo on 6 Aprile 2013 at 10:00
CONCLUSIONS: No statistically significant differences in arch width were found between the different classes analysed (there are only slightly differences between classes), except in the case of mandibular inter-canine width (L3), which was smaller in Class I than in Class II,1, and maxillary inter-premolar width (U4), which was smaller in Class II-I than in Class I.
- Open bite treatment using clear alignersby Maria Paola Guarneri on 1 Febbraio 2013 at 11:00
A 35-year-old female patient with dentoalveolar open bite of 4 mm, molar Class I malocclusion, centered midlines, moderate crowding, and labial inclination of the lower incisor was treated with clear aligners to reduce protrusion and close the anterior open bite. The result showed that clear aligners were an effective method with which to correct this malocclusion. The treatment was complete after 18 months. The patient was satisfied with her new appearance and function.
- Substitution of impacted canines by maxillary first premolars: a valid alternative to traditional orthodontic treatmentby Davide Mirabella on 1 Gennaio 2013 at 11:00
A 13-year-old girl came with the chief complaint of an unesthetic dental appearance. Her maxillary canines were bilaterally impacted. Treatment included extraction of the maxillary canines and the mandibular second premolars. The maxillary first premolars were substituted for the canines. After 26 months of active treatment, the patient had a Class I molar relationship and ideal overbite and overjet. Her profile was improved, lips were competent, and gingival levels were acceptable....
- Ectopic canine control with conventional bracketsby Luca Lombardo on 20 Novembre 2012 at 11:00
Although evident advances have certainly been made, not only in the use of brackets, but also in the mechanics and type of wires and accessories employed, the most recent systematic review of the literature on this topic stated despite claims regarding the clinical superiority of self-ligating brackets, evidence is generally lacking. Thus, the aim of this study was to show, by means of four clinical case reports, that conventional brackets, used in conjunction with relatively recently introduced...
- Three-dimensional finite-element analysis of a central lower incisor under labial and lingual loadsby Luca Lombardo on 2 Ottobre 2012 at 10:00
CONCLUSIONS: Application of an intrusive lingual force to a lower incisor appears to generate bodily movement, while the same intrusive labial force appears to lead to labial tipping. Subject to further study, this should be taken into consideration when devising treatment plans for fixed appliances.
- Long-term stability of alveolar bone grafts in cleft palate patientsby Dominique Toscano on 28 Agosto 2012 at 10:00
CONCLUSIONS: It seems appropriate to recommend early application of a surgical-orthodontic protocol to treat cleft lip and palate patients, prevent postoperative bone resorption, and guarantee correct positioning of the teeth.
- Assessment of lower lip changes following incisor displacement in 92 orthodontically-treated adultsby Davide Mirabella on 28 Agosto 2012 at 10:00
CONCLUSIONS: The results of this study highlight great variability among the patients studied, and suggest that the behaviour of the soft tissues (lower lip changes) following displacement of the upper and lower incisors is multifactorial and very difficult to predict.
- The effect of temperature on the mechanical behavior of nickel-titanium orthodontic initial archwiresby Luca Lombardo on 23 Agosto 2012 at 10:00
CONCLUSIONS: All nickel-titanium wires tested showed a significant change related to temperature in terms of behavior and force for both traditional and heat-activated wires. Stress under high temperatures can induce permanent strain, whereas the residual strain detected at low temperatures can be recovered from as temperature increases.
- Effects of thread shape on the pullout strength of miniscrewsby Antonio Gracco on 4 Agosto 2012 at 10:00
CONCLUSIONS: Thread design influenced the resistance to pullout of the orthodontic miniscrews. The buttress reverse thread shape provided the greatest pullout strength.
- A new self-ligating lingual bracket with square slotsby Giuseppe Scuzzo on 23 Maggio 2012 at 10:00
- Dynamic evaluation of anterior dental alignment in a sample of 8- to 11-year-old childrenby Luca Lombardo on 1 Maggio 2012 at 10:00
CONCLUSIONS: Analysis of the results showed that there are no significant differences between perceptions, sensations and judgments related to smiles presented either as part of the whole face or in only the lower facial third: general facial attractiveness does not influence evaluations of the smile. The study confirms the general tendency to award higher scores to smiles with normal alignment.
- Anterior dental alignment and smile: perception and sensations in a sample of 8- to 10-year-old children and their parentsby Luca Lombardo on 3 Febbraio 2012 at 11:00
CONCLUSION: This study showed that there are no different perceptions and sensations due to the variation of dental alignment. There is a general trend in the classification of smiles according to dental alignment. Background attractiveness and sexual traits influenced the judgment of smile.
- A comparative study of lingual bracket bond strengthby Luca Lombardo on 25 Ottobre 2011 at 10:00
CONCLUSION: Overall, STB brackets performed better, and sandblasting proved to be an efficient way of improving the mechanical features of lingual brackets. Bonding technique, on the other hand, did not seem to exert a great influence on bonding success, and the bracket-adhesive interface was identified as the area most prone to failure.
- Load deflection characteristics and force level of nickel titanium initial archwiresby Luca Lombardo on 15 Settembre 2011 at 10:00
CONCLUSIONS: Although great variation was seen in the plateau behavior, heat-activated versions appear to generate lighter forces over greater deflection plateaus. On average, the increase in plateau force was roughly 50% when the diameter was increased by 0.002 inch (from 0.012 to 0.014 and from 0.014 to 0.016 inch) and about 150% when the diameter was increased by 0.004 inch (from 0.012 to 0.016), with differences between traditional and heat-activated wires noted in this case.
- Upper incisor intrusion: an anatomical analysis via CBCTby Antonio Gracco on 3 Maggio 2011 at 10:00
CONCLUSION: The CBCT data obtained permitted identification of the alveolar anatomy and quantification of the intrusion possible. In the older age group, potential intrusion was significantly greater for teeth 12, 21 and 22. Furthermore, a directly proportional relationship between the measurements pertaining to each tooth in a single patient was noted.
- The orthodontist burnoutby Fiammetta Pirillo on 26 Aprile 2011 at 10:00
CONCLUSIONS: The research suggested that Italian orthodontists were less prone to Burnout Syndrome compared to general dentists. As life-style has a major impact on the onset of the syndrome, preventive measures and solutions could be useful in order to prevent the symptoms of the Burnout Syndrome.
- Soft tissue laser in orthodonticsby Antonio Gracco on 26 Aprile 2011 at 10:00
Today a lot of minor cosmetic surgery operations on the gingiva can easily be carried out directly by the orthodontist with a small quantity of topical anaesthetic and the use of a soft tissue laser. The Diode laser is the most commonly used laser in dentistry for minor surgery to the soft tissues. This kind of laser offers numerous advantages with respect to traditional or electric scalpels. In this article the authors will analyse several typical uses of the diode laser in daily orthodontic...
- Efficiency of the distal screw in the distal movement of maxillary molarsby Mauro Cozzani on 15 Aprile 2011 at 10:00
CONCLUSIONS: The distal screw anchored by two palatal mini-implants allows not only translatory molar distal movement, but also distal movement of the maxillary first premolars, thereby avoiding characteristic anchorage loss.
- Class III malocclusion with missing maxillary lateral incisorsby Mauro Cozzani on 12 Marzo 2011 at 11:00
A 23-year-old woman with a skeletal Class III relationship, a normal vertical jaw relationship, and missing maxillary lateral incisors was treated with bidimensional fixed edgewise appliance therapy combined with orthognathic surgery. A functional and esthetic occlusion in an improved facial profile was established at the end of the surgical and orthodontic treatment. Pretreatment, posttreatment, and long-term follow-up records for the patient are presented.
- Wire load-deflection characteristics relative to different types of bracketsby Luca Lombardo on 5 Febbraio 2011 at 11:00
CONCLUSION: The initial hypothesis was supported. Because of the reduced interbracket distance, the adoption of superelastic wires is required in lingual mechanics and with smaller diameter compared to labial mechanotherapy, in particular during the first phases of treatment. The use of a bracket with reduced mesiodistal dimensions can contribute to reduce the load on the teeth.
- Lip pressure at rest and during function in 2 groups of patients with different occlusionsby Domizia Di Fazio on 4 Gennaio 2011 at 11:00
CONCLUSIONS: In healthy patients, (1) upper lip pressure does not change at rest and during swallowing, (2) upper lip pressure was similar in the 2 groups (Class I, 24.33 g/cm(2); Class II, 24.61 g/cm(2)), and (3) lip pressure was higher in adults than in young subjects. Further studies are needed to measure the pressure of the lower lip and to evaluate whether there are differences in labial pressure between subjects with labial competence and incompetence.
- A new concept of anatomic lingual arch formby Luca Lombardo on 7 Settembre 2010 at 10:00
CONCLUSIONS: Three lingual curves (small, medium, and large) for the maxillary and mandibular arches, representing the mean values of our sample, were developed and can be used as guides for the setup in the lingual straight-wire technique.
- Computed tomography evaluation of mandibular incisor bony support in untreated patientsby Antonio Gracco on 10 Agosto 2010 at 10:00
CONCLUSIONS: There is a statistically significant relationship between facial type and the total thickness of the mandibular symphysis.
- Multidisciplinary treatment of an avulsed central incisorby Antonio Gracco on 30 Luglio 2010 at 10:00
- Influence of anterior tooth alignment on peer perception in 8- to 10-year-old childrenby Federica Verdecchia on 29 Luglio 2010 at 10:00
The purpose of this research was to investigate whether anterior dental alignment in 8- to 10-year-old children influences the first impressions of their peers, and to verify the validity of the tested method. From colour photographs of two attractive children, one male and one female, Adobe Photoshop 5.0 was used to alter the images and create three versions of each photograph: one with good anterior dental alignment (OK smile), a second with proclination of the upper incisors (P-type smile),...
- A simple method for aligning retroclined or ectopic teethby Mauro Cozzani on 26 Giugno 2010 at 10:00
- A new lingual straight-wire techniqueby Giuseppe Scuzzo on 18 Giugno 2010 at 10:00
- Orthodontic partial disimpaction of mandibular third molars prior to surgical extractionby Nicolà Derton on 23 Marzo 2010 at 10:00
Odontodysplasia of the third molars is a relatively common anomaly. The frequent complications associated with this disorder very often constitute an indication for extraction of the third molar. This surgical treatment can damage the lower alveolar nerve and/or trigger distal bone loss of the second molar, thus jeopardizing the future status of the periodontium. The author presents two case studies treated exclusively with miniscrews with no dental anchorage in order to achieve partial eruption...
- Lingual straight wire methodby Kyoto Takemoto on 23 Marzo 2010 at 10:00
The mushroom arch-wire is mainly used in lingual orthodontic treatment but the complicated wire bending it requires affects both the treatment results and the time spent at the chair. The author proposes a new lingual straight wire method (LSW) in order to facilitate arch coordination and simplify the mechanics. The attention paid to the set-up model and bracket positioning and bonding plus the use of the new LSW method will also improve patient comfort.
- Optimal palatal configuration for miniscrew applicationsby Luca Lombardo on 27 Ottobre 2009 at 10:00
CONCLUSIONS: The hypothesis is rejected. Miniscrews loaded within the normal orthodontic force range do not exceed the stress levels that lead to bone fracture.
- Palatal volume following rapid maxillary expansion in mixed dentitionby Antonio Gracco on 27 Ottobre 2009 at 10:00
CONCLUSIONS: Palatal volume significantly increases with rapid maxillary expansion (RME) treatment with insignificant relapse. The use of virtual 3D models with the aid of Apposite software permits evaluation of the morphologic and volumetric changes induced by orthodontic treatment.
- Upper incisor position and bony support in untreated patients as seen on CBCTby Antonio Gracco on 23 Giugno 2009 at 10:00
CONCLUSION: At the upper incisors, facial type is statistically significantly correlated with both alveolar bone thickness and distance between the root apex and lingual cortex.
- Upper lip changes correlated with maxillary incisor movement in 65 orthodontically treated adult patientsby Davide Mirabella on 17 Gennaio 2009 at 11:00
CONCLUSION: The results obtained highlight a pronounced variability among the patients studied and the impossibility of accurately predicting the behavior of the soft tissues following movement of maxillary incisors.