Transverse changes after surgically assisted rapid palatal expansion |
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| Affiliation: | 1. CEUMA University, São Luís, Maranhão, Brazil;2. Department of Speech–Language Pathology and Department of Audiology, Universidade Estadual Paulista “Júlio de Mesquita Filho” UNESP, Marília, Brazil;3. Department of Orthodontics, Federal University Pará, Belém, Brazil;1. Department of Oral Surgery, Medical University of Vienna, Austria;2. Austrian Cluster for Tissue Regeneration, Vienna, Austria;3. Ludwig Boltzmann Cluster for Cardiovascular Research, Medical University of Vienna, Austria;4. Institute of Physiological Chemistry, Center of Physiological Medicine, Medical University Graz, Austria;5. School of Dental Medicine, University of Bern, Switzerland;1. Department for Orthodontics, University Hospital Düsseldorf, Düsseldorf, Germany;2. Private practice, Sydney, Australia;1. Department of Orthodontics, Juiz de Fora Federal University, Juiz de Fora, Minas Gerais, Brazil;2. Renato Archer Information Technology Center, Campinas, São Paulo, Brazil;1. Private practice, Zakynthos, Greece;2. Research assistant, Department of Orthodontics, Marmara University, Istanbul, Turkey;3. Associate professor, Department of Oral and Maxillofacial Surgery, Marmara University, Istanbul, Turkey;4. Professor, Department of Orthodontics, Marmara University, Istanbul, Turkey;1. Private Practice, Saratoga, CA; Former Resident, Division of Orthodontics, Department of Orofacial Sciences, University of California, San Francisco, CA;2. Resident, Division of Orthodontics, Department of Orofacial Sciences, University of California, San Francisco, CA;3. Resident, Division of Orthodontics, Department of Orofacial Sciences, University of California, San Francisco, CA;4. President and CEO, Biomedical Computer Research Institute, Philadelphia, PA;6. Professor, Division of Orthodontics, Department of Orofacial Sciences, University of California, San Francisco, CA;5. Private Practice, Moraga, CA; Associate Health Science Professor, Division of Orthodontics, Department of Orofacial Sciences, University of California, San Francisco, CA;1. Postgraduate student, Translational Program, Division of Plastic Surgery, Federal University of São Paulo, São Paulo, Brazil;2. Coadvisor, Translational Program, Division of Plastic Surgery, Federal University of São Paulo, São Paulo, Brazil;3. Resident, Division of Plastic Surgery, Federal University of São Paulo, São Paulo, Brazil;4. Head, Division of Plastic Surgery, Federal University of São Paulo, São Paulo, Brazil;5. Head, Craniomaxillofacial Unit, Division of Plastic Surgery, Federal University of São Paulo, São Paulo, Brazil |
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| Abstract: | The aim of this retrospective study was to investigate the amount of skeletal and dental expansion in patients submitted to surgically assisted rapid palatal expansion (SARPE). The sample consisted of 21 patients (14 female and seven male) with a mean age of 25.4 years (range 17.4–41.8 years). Postero-anterior (PA) cephalograms were taken pre-expansion (T1), immediately after expansion (T2), and at post-expansion retention of 120 days (T3). SARPE promoted significant transverse skeletal changes, which were maintained from T2 to T3. Dentoalveolar expansion and dental tipping were also observed in the region of the first molars and first premolars; however the net effect at the first molars was significantly less than that at the first premolars. No statistically significant effect on the width of the nasal cavity was observed. The findings indicate that peculiarities inherent to dental effects may influence the clinical options for SARPE. Skeletal expansions with SARPE were significant and stable. Dental changes were different between molars and premolars. The transverse changes after SARPE should be observed for future procedures related to the retention and the completion of orthodontic treatment. |
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| Keywords: | surgically assisted rapid palatal expansion rapid maxillary expansion dentoalveolar changes |
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