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Dentoskeletal effects of aesthetic and conventional twin block appliances in the treatment of skeletal class II malocclusion: a randomized controlled trial.
Sci Rep
January 2025
Department of Orthodontics, Faculty of Dentistry, University of Damascus, Damascus, Syria.
Twin block appliances are commonly used to treat skeletal class II malocclusion. However, many adverse effects, such as lower incisor protrusion and a bulky nature, can be observed. To overcome these effects, a modified twin block was designed, which uses vacuum-formed hard plates (VFPs) instead of acrylic plates.
View Article and Find Full Text PDFComparison of the Effects of Fixed and Removable Functional Orthodontic Treatment on the Mandibular Trabecular Bone in Fractal Analysis.
Turk J Orthod
December 2024
Karadeniz Technical University Faculty of Dentistry, Department of Oral Diagnosis and Radiology, Trabzon, Turkey.
Article Synopsis
- This study aimed to compare the effects of two orthodontic appliances, the Twin block and Herbst, on the structure of the mandible using fractal dimension analysis (FDA) of panoramic radiographs in patients with skeletal Class II malocclusion.
- Fifty subjects treated with each appliance and a control group were analyzed, focusing on specific regions in the mandible, with significant changes in the condylar region and corpus observed across both treatment groups.
- Results indicated that both appliances caused remodeling of the mandibular trabecular structure, with the Twin block showing greater variances in the condyle compared to the Herbst appliance, thus rejecting the null hypothesis of no effect.
The orthodontic management of patients with Class III malocclusion poses numerous treatment challenges. Various removable, fixed, orthopedic, and myofunctional appliances have been recommended for its correction. The Reverse Twin Block is a removable appliance which has been used for the early management of such cases.
View Article and Find Full Text PDFSkeletal and Dental Effects of Forsus Fatigue Resistance Device Versus Twin Block Appliance for Class II Malocclusion Treatment in Growing Patients: A Systematic Review.
Clin Exp Dent Res
December 2024
Department of Orthodontics, University of Damascus Dental School, Damascus, Syria.
Objective: This study systematically searched the literature and assessed the available evidence to compare the efficacy of Forsus Fatigue Resistance Device (FRD) versus Twin Block Appliance (TBA) in treating class II malocclusion.
Material And Methods: The search for published literature was published up to May 28, 2024. The databases were included in the search: MEDLINE, PubMed, EMBASE, Cochrane Oral Trials Register, Tripe, Web of Science, and Scopus.
Facial soft tissue changes in adolescent patients treated with three different functional appliances: a randomized clinical trial.
Dental Press J Orthod
October 2024
State University of Rio de Janeiro, School of Dentistry, Department of Orthodontics (Rio de Janeiro/RJ, Brazil).
Article Synopsis
- Patients with Class II, division 1 malocclusion seek orthodontic treatment mainly for improved facial aesthetics, and understanding soft tissue profile changes from functional appliances is crucial for orthodontists.
- The study evaluated soft tissue profile changes in 30 patients, divided into three treatment groups (Twin Block, Herbst with dental anchorage, and Herbst with skeletal anchorage) during the peak of their pubertal growth spurt, using CT images before and after 12 months of treatment.
- Results showed significant improvements in facial soft tissue for all groups after treatment, but no statistically significant differences were found between the three treatment methods.
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