Objective: The purpose of this study was to compare long-term stability and satisfaction between orthodontic camouflage and orthognathic surgery in treatment of moderate skeletal Class III adults. Materials and Method...Objective: The purpose of this study was to compare long-term stability and satisfaction between orthodontic camouflage and orthognathic surgery in treatment of moderate skeletal Class III adults. Materials and Methods: A total of 25 adults females who had been treated with orthodontic camouflage for Class III malocclusions were recalled at least 3 years post-treatment to evaluate stability and satisfaction with treatment outcomes. The data were compared with similar data for long-term outcomes in 21 patients with the same Class III problems who had bimaxillary surgical correction. Results: In the camouflage patients, small mean changes in skeletal landmark positions occurred over the long term, although the changes were generally much smaller than in the surgery patients. Dental changes in the surgery group were more severe than those in the camouflage group. The camouflage patients reported fewer functional or temporomandibular joint problems than did the surgery patients. Both groups reported similar levels of overall satisfaction with treatment. Conclusion: The results suggest that both camouflage and surgical treatment in moderate skeletal Class III adults can achieve satisfactory outcomes and provide long-term stability. If patients do not readily accept surgery because of potential surgical complications or financial difficulties, camouflage treatment may be an effective alternative treatment.展开更多
A simple overview of daily orthodontic practice involves use of brackets, wires and elastomeric modules. However, investigating the underlying effect of orthodontic forces shows various molecular and cellular changes....A simple overview of daily orthodontic practice involves use of brackets, wires and elastomeric modules. However, investigating the underlying effect of orthodontic forces shows various molecular and cellular changes. Also, orthodontics is in close relation with dentofacial orthopedics which involves bone regeneration. In this review current and future applications of stem cells(SCs) in orthodontics and dentofacial orthopedics have been discussed. For craniofacial anomalies, SCs have been applied to regenerate hard tissue(such as treatment of alveolar cleft) and soft tissue(such as treatment of hemifacial macrosomia). Several attempts have been done to reconstruct impaired temporomandibular joint. Also, SCs with or without bone scaffolds and growth factors have been used to regenerate bone following distraction osteogenesis of mandibular bone or maxillary expansion. Current evidence shows that SCs also have potential to be used to regenerate infrabony alveolar defects and move the teeth into regenerated areas. Future application of SCs in orthodontics could involve accelerating tooth movement, regenerating resorbed roots and expanding tooth movement limitations. However, evidence supporting these roles is weak and further studies are required to evaluate the possibility of these ideas.展开更多
BACKGROUND Maxillofacial deformities are skeletal discrepancies that cause occlusal,functional,and esthetic problems,and are managed by multi-disciplinary treatment,including careful orthodontic,surgical,and periodont...BACKGROUND Maxillofacial deformities are skeletal discrepancies that cause occlusal,functional,and esthetic problems,and are managed by multi-disciplinary treatment,including careful orthodontic,surgical,and periodontal evaluations.However,thin periodontal phenotype is often overlooked although it affects the therapeutic outcome.Gingival augmentation and periodontal accelerated osteogenic orthodontics(PAOO)can effectively modify the periodontal phenotype and improve treatment outcome.We describe the multi-disciplinary approaches used to manage a case of skeletal ClassⅢmalocclusion and facial asymmetry,with thin periodontal phenotype limiting the correction of deformity.CASE SUMMARY A patient with facial asymmetry and weakness in chewing had been treated with orthodontic camouflage,but the treatment outcome was not satisfactory.After examination,gingiva augmentation and PAOO were performed to increase the volume of both the gingiva and the alveolar bone to allow further tooth movement.After orthodontic decompensation,double-jaw surgery was performed to reposition the maxilla-mandibular complex.Finally,implant placement and chin molding were performed to restore the dentition and to improve the skeletal profile.The appearance and function were significantly improved,and the periodontal tissue remained healthy and stable.CONCLUSION In patients with dentofacial deformities and a thin periodontal phenotype,multi-disciplinary treatment that includes PAOO could be effective,and could improve both the quality and safety of orthodontic-orthognathic therapy.展开更多
文摘Objective: The purpose of this study was to compare long-term stability and satisfaction between orthodontic camouflage and orthognathic surgery in treatment of moderate skeletal Class III adults. Materials and Methods: A total of 25 adults females who had been treated with orthodontic camouflage for Class III malocclusions were recalled at least 3 years post-treatment to evaluate stability and satisfaction with treatment outcomes. The data were compared with similar data for long-term outcomes in 21 patients with the same Class III problems who had bimaxillary surgical correction. Results: In the camouflage patients, small mean changes in skeletal landmark positions occurred over the long term, although the changes were generally much smaller than in the surgery patients. Dental changes in the surgery group were more severe than those in the camouflage group. The camouflage patients reported fewer functional or temporomandibular joint problems than did the surgery patients. Both groups reported similar levels of overall satisfaction with treatment. Conclusion: The results suggest that both camouflage and surgical treatment in moderate skeletal Class III adults can achieve satisfactory outcomes and provide long-term stability. If patients do not readily accept surgery because of potential surgical complications or financial difficulties, camouflage treatment may be an effective alternative treatment.
文摘A simple overview of daily orthodontic practice involves use of brackets, wires and elastomeric modules. However, investigating the underlying effect of orthodontic forces shows various molecular and cellular changes. Also, orthodontics is in close relation with dentofacial orthopedics which involves bone regeneration. In this review current and future applications of stem cells(SCs) in orthodontics and dentofacial orthopedics have been discussed. For craniofacial anomalies, SCs have been applied to regenerate hard tissue(such as treatment of alveolar cleft) and soft tissue(such as treatment of hemifacial macrosomia). Several attempts have been done to reconstruct impaired temporomandibular joint. Also, SCs with or without bone scaffolds and growth factors have been used to regenerate bone following distraction osteogenesis of mandibular bone or maxillary expansion. Current evidence shows that SCs also have potential to be used to regenerate infrabony alveolar defects and move the teeth into regenerated areas. Future application of SCs in orthodontics could involve accelerating tooth movement, regenerating resorbed roots and expanding tooth movement limitations. However, evidence supporting these roles is weak and further studies are required to evaluate the possibility of these ideas.
基金Supported by Nanjing Clinical Research Center for Oral Diseases,No.2019060009the Nanjing Medical Science and Technology Development Program,No.YKK17139。
文摘BACKGROUND Maxillofacial deformities are skeletal discrepancies that cause occlusal,functional,and esthetic problems,and are managed by multi-disciplinary treatment,including careful orthodontic,surgical,and periodontal evaluations.However,thin periodontal phenotype is often overlooked although it affects the therapeutic outcome.Gingival augmentation and periodontal accelerated osteogenic orthodontics(PAOO)can effectively modify the periodontal phenotype and improve treatment outcome.We describe the multi-disciplinary approaches used to manage a case of skeletal ClassⅢmalocclusion and facial asymmetry,with thin periodontal phenotype limiting the correction of deformity.CASE SUMMARY A patient with facial asymmetry and weakness in chewing had been treated with orthodontic camouflage,but the treatment outcome was not satisfactory.After examination,gingiva augmentation and PAOO were performed to increase the volume of both the gingiva and the alveolar bone to allow further tooth movement.After orthodontic decompensation,double-jaw surgery was performed to reposition the maxilla-mandibular complex.Finally,implant placement and chin molding were performed to restore the dentition and to improve the skeletal profile.The appearance and function were significantly improved,and the periodontal tissue remained healthy and stable.CONCLUSION In patients with dentofacial deformities and a thin periodontal phenotype,multi-disciplinary treatment that includes PAOO could be effective,and could improve both the quality and safety of orthodontic-orthognathic therapy.
