Short-term variation in the subgingival microbiota in two groups of patients treated with clear aligners and vestibular fixed appliances: A longitudinal study

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Orthod Craniofac Res. 2021 May;24(2):251-260. doi: 10.1111/ocr.12427. Epub 2020 Oct 15. ABSTRACT OBJECTIVE: To evaluate the subgingival microbiological changes during the first six months of therapy with clear aligners (CAs) and fixed appliances (FAs). The null hypothesis was that there would be no microbiological differences between the two. SETTING/SAMPLE: Two groups of patients to be…

Assessment of stiffness and load deflection of orthodontic miniscrews used for palatal anchorage: An in vitro biomechanical study

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Int Orthod. 2020 Dec;18(4):809-819. doi: 10.1016/j.ortho.2020.08.005. Epub 2020 Sep 28. ABSTRACT OBJECTIVE: The purpose of this study was to evaluate the biomechanical properties of miniscrews of 5 different lengths, 2 different diameters, and different combinations of insertion used for palatal skeletal anchorage. MATERIALS AND METHODS: Twenty-four different combinations of a total of 120 miniscrews of…

The perceived impact of the COVID-19 pandemic on dental undergraduate students in the Italian region of Emilia-Romagna

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Eur J Dent Educ. 2021 Aug;25(3):621-633. doi: 10.1111/eje.12640. Epub 2020 Dec 14. ABSTRACT INTRODUCTION: The outbreak and diffusion of the novel SARS-CoV2 coronavirus have caused an emergency status in the dental education system. MATERIALS AND METHODS: An anonymous survey composed of 34 questions was delivered to students of the Master Degree Programme in Dentistry and…

Class II subdivision with skeletal transverse maxillary deficit treated by single-sitting bone-borne appliance

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Angle Orthod. 2021 Jan 1;91(1):129-137. doi: 10.2319/050520-394.1. ABSTRACT 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…

Dual-section versus conventional archwire for en-masse retraction of anterior teeth with direct skeletal anchorage: a finite element analysis

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BMC Oral Health. 2021 Feb 25;21(1):87. doi: 10.1186/s12903-021-01443-0. ABSTRACT BACKGROUND: The aim of this study is to compare the biomechanical effects of the conventional 0.019 × 0.025-in stainless steel archwire with the dual-section archwire when en-masse retraction is performed with sliding mechanics and skeletal anchorage. METHODS: Models of maxillary dentition equipped with the 0.019 ×…

Micro-computed tomography evaluation of general trends in aligner thickness and gap width after thermoforming procedures involving six commercial clear aligners: An in vitro study

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Korean J Orthod. 2021 Mar 25;51(2):135-141. doi: 10.4041/kjod.2021.51.2.135. ABSTRACT OBJECTIVE: To assess the effects of thermoforming on aligner thickness and gap width in six aligner systems with the same nominal thickness. METHODS: Six passive upper aligners of different brands were adapted to a single printed cast. Each sample was evaluated with high-resolution micro-computed tomography. To…

Association of the mid-palatal suture morphology to the age and to its density: A CBCT retrospective comparative observational study

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Int Orthod. 2021 Jun;19(2):235-242. doi: 10.1016/j.ortho.2021.03.002. Epub 2021 Mar 27. ABSTRACT OBJECTIVE: The twofold aim of the present investigation was to: 1. evaluate the degree of mid-palatal suture (MPS) maturation via CBCT in relation to patient age, and 2. to determine whether there was a correlation between quantitative (i.e., suture density) and qualitative (i.e., suture…

Comparison of the accuracy of digital face scans obtained by two different scanners

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Angle Orthod. 2021 Sep 1;91(5):641-649. doi: 10.2319/092720-823.1. ABSTRACT OBJECTIVES: To compare the degree of accuracy of the Face Hunter facial scanner and the Dental Pro application for facial scanning, with respect to both manual measurements and each other. MATERIALS AND METHODS: Twenty-five patients were measured manually and scanned using each device. Six reference markers were…