{"title":"Evaluation of Hard Tissue Changes in Skeletally Matured Patients with Maxillary Transverse Discrepancy Treated by Rotterdam Palatal Distractor.","authors":"Lalit Janjani, Sanjay Kumar Roy Chowdhury","doi":"10.1007/s12663-025-02454-y","DOIUrl":null,"url":null,"abstract":"<p><strong>Objective: </strong>The aim of this clinical study was to evaluate the hard tissue changes in skeletally mature adult patients with maxillary transverse deficiency (MTD) managed using Rotterdam Palatal Distractor and to access bony and dental changes that occur in transverse plane during transpalatal distraction using radiographs and dental study models, respectively.</p><p><strong>Methods: </strong>Ten adult patients with MTD were treated with a Rotterdam Palatal Distractor (RPD). Dental study models, postero-anterior (PA) and lateral cephalograms were obtained pre-operatively (T0), at the end of consolidation period of 3 months (T1) and after six months into retentive phase (T2). The statistical analysis of the obtained data was analyzed using paired 'T' test. Two-'tailed' tests were applied for getting significance of changes observed on dental study models and radiographs.</p><p><strong>Results: </strong>The study model measurements illustrated statistically significant increase in inter-central incisor width (+ 4.12 mm), inter-canine width (+ 5.23 mm), inter-first premolar width (+ 5.62 mm) and inter-first molar width (+ 5.11 mm). The PA cephalogram measurements demonstrated statistically significant increase in effective nasal cavity width (+ 3.89 mm), skeletal maxillary width (+ 4.51 mm) and inter-last molar width (+ 5.15 mm). The lateral cephalogram measurements demonstrated statistically significant increase in SNA (+ 0.90), decrease in SNB (- 0.70), increase in ANB (+ 1.60) and increase in SN-Go-Gn (+ 2.80).</p><p><strong>Conclusions: </strong>Surgically assisted rapid maxillary expansion is an established procedure for the management of MTD in skeletally mature individuals. The efficacy of bone-borne distractors in achieving maxillary expansion has been confirmed clinically and radiologically in our study.</p>","PeriodicalId":47495,"journal":{"name":"Journal of Maxillofacial & Oral Surgery","volume":"24 5","pages":"1516-1524"},"PeriodicalIF":0.6000,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12496322/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Maxillofacial & Oral Surgery","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1007/s12663-025-02454-y","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/1/24 0:00:00","PubModel":"Epub","JCR":"Q4","JCRName":"DENTISTRY, ORAL SURGERY & MEDICINE","Score":null,"Total":0}
引用次数: 0
Abstract
Objective: The aim of this clinical study was to evaluate the hard tissue changes in skeletally mature adult patients with maxillary transverse deficiency (MTD) managed using Rotterdam Palatal Distractor and to access bony and dental changes that occur in transverse plane during transpalatal distraction using radiographs and dental study models, respectively.
Methods: Ten adult patients with MTD were treated with a Rotterdam Palatal Distractor (RPD). Dental study models, postero-anterior (PA) and lateral cephalograms were obtained pre-operatively (T0), at the end of consolidation period of 3 months (T1) and after six months into retentive phase (T2). The statistical analysis of the obtained data was analyzed using paired 'T' test. Two-'tailed' tests were applied for getting significance of changes observed on dental study models and radiographs.
Results: The study model measurements illustrated statistically significant increase in inter-central incisor width (+ 4.12 mm), inter-canine width (+ 5.23 mm), inter-first premolar width (+ 5.62 mm) and inter-first molar width (+ 5.11 mm). The PA cephalogram measurements demonstrated statistically significant increase in effective nasal cavity width (+ 3.89 mm), skeletal maxillary width (+ 4.51 mm) and inter-last molar width (+ 5.15 mm). The lateral cephalogram measurements demonstrated statistically significant increase in SNA (+ 0.90), decrease in SNB (- 0.70), increase in ANB (+ 1.60) and increase in SN-Go-Gn (+ 2.80).
Conclusions: Surgically assisted rapid maxillary expansion is an established procedure for the management of MTD in skeletally mature individuals. The efficacy of bone-borne distractors in achieving maxillary expansion has been confirmed clinically and radiologically in our study.
期刊介绍:
This journal offers comprehensive coverage of new techniques, important developments and innovative ideas in Oral and Maxillofacial Surgery. Practice-applicable articles help develop the methods used to handle dentoalveolar surgery, facial injuries and deformities, TMJ disorders, oral cancer, jaw reconstruction, anesthesia and analgesia. The journal also includes specifics on new instruments, diagnostic equipment’s and modern therapeutic drugs and devices. Journal of Oral and Maxillofacial Surgery is recommended for first or priority subscription by the Dental Section of the Medical Library Association. Specific topics covered recently have included: ? distraction osteogenesis ? synthetic bone substitutes ? fibroblast growth factors ? fetal wound healing ? skull base surgery ? computer-assisted surgery ? vascularized bone grafts Benefits to authorsWe also provide many author benefits, such as free PDFs, a liberal copyright policy, special discounts on Elsevier publications and much more. Please click here for more information on our author services.