Maria Antonia Alvarez1, Alejandra Mejia2, Daniela Alzate2, Diego Rey2, Marcos Ioshida3, Juan Fernando Aristizabal4, Hector F Rios5, Wilhelm Bellaiza-Cantillo4, Marcela Tirado6, Antonio Ruellas7, Lucia Cevidanes7. 1. Department of Orthodontics, School of Dentistry, CES University, Medellín, Antioquia, Colombia. Electronic address: malvarez@ces.edu.co. 2. Department of Orthodontics, School of Dentistry, CES University, Medellín, Antioquia, Colombia. 3. Department of Cariology, Restorative Sciences and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, Mich. 4. Department of Orthodontics, School of Dentistry, Valle University, Cali, Valle del Cauca, Colombia. 5. Department of Periodontics, University of Michigan, Ann Arbor, Mich. 6. Department of Periodontics, School of Dentistry, CES University, Medellin, Antioquia, Colombia. 7. Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, Mich.
Abstract
INTRODUCTION: This study aimed to compare the extent of buccal bone defects (dehiscences and fenestrations) and transversal tooth movement of mandibular lateral segments in patients after orthodontic treatment with and without piezocision in cone-beam computed tomography and digital dental models. METHODS: The study sample of this study consisted of cone-beam computed tomography scans and digital dental models taken before (T0) and after (T1) orthodontic treatment of 36 patients with moderate mandibular anterior crowding. The experimental group consisted of 17 patients that had piezocision performed at the beginning of treatment with the goal of accelerating tooth movement, which was compared with 19 patients who did not receive piezocision. The measurement of bone defects, buccolingual inclination, and transversal distances of the tooth in the mandibular lateral segments (mandibular canines, premolars, and first molars) were evaluated at baseline and at the end of the orthodontic treatment. RESULTS: Overall, an increase in dehiscences, buccal inclination, and arch width from T0 to T1 was observed in both groups, but no statistically significant difference was found between groups. A significant increase in fenestrations from T0 to T1 was observed only for the canines in the experimental group. No statistically significant association was found between the increase of dehiscences and the amount of buccolingual inclination or transversal width changes. However, the changes in transversal width were statistically significantly associated with the increase in buccal inclination at the canines, first and second premolars. CONCLUSIONS: No significant differences were found in buccal dehiscences and transversal tooth movement (buccolingual inclination and arch width) of mandibular lateral segments between patients after orthodontic treatment with and without piezocision. Dehiscences, buccal inclination, and arch width significantly increased from T0 to T1 in both groups.
INTRODUCTION: This study aimed to compare the extent of buccal bone defects (dehiscences and fenestrations) and transversal tooth movement of mandibular lateral segments in patients after orthodontic treatment with and without piezocision in cone-beam computed tomography and digital dental models. METHODS: The study sample of this study consisted of cone-beam computed tomography scans and digital dental models taken before (T0) and after (T1) orthodontic treatment of 36 patients with moderate mandibular anterior crowding. The experimental group consisted of 17 patients that had piezocision performed at the beginning of treatment with the goal of accelerating tooth movement, which was compared with 19 patients who did not receive piezocision. The measurement of bone defects, buccolingual inclination, and transversal distances of the tooth in the mandibular lateral segments (mandibular canines, premolars, and first molars) were evaluated at baseline and at the end of the orthodontic treatment. RESULTS: Overall, an increase in dehiscences, buccal inclination, and arch width from T0 to T1 was observed in both groups, but no statistically significant difference was found between groups. A significant increase in fenestrations from T0 to T1 was observed only for the canines in the experimental group. No statistically significant association was found between the increase of dehiscences and the amount of buccolingual inclination or transversal width changes. However, the changes in transversal width were statistically significantly associated with the increase in buccal inclination at the canines, first and second premolars. CONCLUSIONS: No significant differences were found in buccal dehiscences and transversal tooth movement (buccolingual inclination and arch width) of mandibular lateral segments between patients after orthodontic treatment with and without piezocision. Dehiscences, buccal inclination, and arch width significantly increased from T0 to T1 in both groups.
Authors: P M Cattaneo; M Treccani; K Carlsson; T Thorgeirsson; A Myrda; L H S Cevidanes; B Melsen Journal: Orthod Craniofac Res Date: 2011-11 Impact factor: 1.826
Authors: Marcio Rodrigues de Almeida; Cristina Futagami; Ana Cláudia de Castro Ferreira Conti; Paula Vanessa Pedron Oltramari-Navarro; Ricardo de Lima Navarro Journal: Dental Press J Orthod Date: 2015 May-Jun
Authors: Tomaso Vercellotti; Marc L Nevins; David M Kim; Myron Nevins; Keisuke Wada; Robert K Schenk; Joseph P Fiorellini Journal: Int J Periodontics Restorative Dent Date: 2005-12 Impact factor: 1.840