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| Author(s): |
Francyle Simões Herrera Sanches
Total Authors: 1
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| Document type: | Doctoral Thesis |
| Press: | Bauru. |
| Institution: | Universidade de São Paulo (USP). Faculdade de Odontologia de Bauru (FOB/SDB) |
| Defense date: | 2015-04-10 |
| Examining board members: |
Daniela Gamba Garib Carreira;
Carlos Alberto Aiello;
Karina Maria Salvatore de Freitas;
Jose Fernando Castanha Henriques;
José Eduardo Prado de Souza
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| Advisor: | Daniela Gamba Garib Carreira |
| Abstract | |
Objectives: The aim of this study was to evaluate, in adults with loss of the first permanent molars, the inclinations and angles of adjacent teeth as well as the alveolar ridge thickness after mesial movement of second molars to close the space of the tooth loss and second molar uprighting to rehabilitation prosthetic. Methods: Two study groups were selected. The Group Closure (GC) was composed of 12 quadrants with no permanent first molars and edentulous spaces varying from 2 to 7mm, which were treated with orthodontic space closure. The Group Opening (GO) was composed of 14 quadrants with no permanent first molars and edentulous spaces varying from 7.1 to 12mm, which were treated with orthodontic uprighting of the second and third molars and reopening space for prosthetic rehabilitation. In digital dental models were evaluated the angulation, inclination, the cervical-occlusal dimension and alveolar ridge thickness. Interphase and intergroup comparisons were performed with with paired t-test and independent t-test, respectively (p <0.05). Results: There was improvement in the angulation of the mandibular second molars both in GC and GO, showing the mechanical efficiency in both therapies; there were no significant changes in buccolingual inclinations of the posterior teeth in both groups; the alveolar ridge thickness increased in GC and remained constant in GO. Conclusions: Both treatment modalities have demonstrated appropriate results. The choice of treatment plan should consider the cost-benefit of each case, taking into account the initial dimension of the space, the presence of third molars, initial periodontal conditions, treatment time and the financial cost. (AU) | |
| FAPESP's process: | 11/20604-2 - TOOTH MOVEMENT TO MESIODISTAL ALVEOLAR AREA: ATROPHIC EVALUATION BY MEANS OF DIGITAL MODELS |
| Grantee: | Francyle Simões Herrera Sanches |
| Support Opportunities: | Scholarships in Brazil - Doctorate |