RESUMEN

Angle's Class II Division 1 malocclusion is illustrated as a prominent maxilla along with protrusive maxillary anteriors, mandibular retrognathism, or both, often leading to functional and aesthetic concerns. Effective management of this condition in growing patients typically involves a combination of functional and orthodontic appliances to correct dental and skeletal discrepancies. Treating this malocclusion in the deceleration stages of growth is often challenging for orthodontists. This case report exemplifies the potency of Forsus appliance in addressing Class II Division 1 malocclusion in growing patients, underscoring its role in achieving favorable orthodontic outcomes.

RESUMEN

OBJECTIVES: The objective is to assess and compare whether AdvanSync gives better skeletal, dental, and soft tissue outcomes than Forsus fixed functional appliance in post-pubertal skeletal Class II malocclusion patients. METHODOLOGY: A prospective study was conducted using 3D-CBCT of patients taken before and after fixed functional appliance therapy. The sample consisted of 16 patients divided into two groups: Group 1 was treated with Forsus and group 2 with AdvanSync appliance. All subjects were in their post-pubertal growth phase. Treatment changes were evaluated between the study groups using 12 angular and 14 linear parameters. The data were subjected to statistical analysis. RESULTS: Statistically significant changes in SNB (P:0.04) and ANB (P:0.01) in Forsus appliance and AdvanSync (SNB, P:008), (ANB, P: <0.001) were found between the pre and post-fixed functional appliance protocol. The effective mandibular length increased in both groups Forsus(P-value: 0.01) and AdvanSync (P-value: 0.01). Group 1 resulted in lower incisor proclination and intrusion, a reduction in an overbite, whereas group 2 resulted in lower incisor proclination, upper incisor extrusion, and retroclination. Both groups showed significant improvement in the molar relation and overjet. An increase in the total facial convexity was shown in group 1; group 2 showed an increase in the facial convexity and total facial convexity. There was no statistically significant difference between the effects of the Forsus and Advansync appliance groups in the post-fixed functional period. Both groups presented similar results. CONCLUSION: Forsus and Advansync appliances are effective with similar results in normalizing skeletal Class II malocclusion in post-pubertal patients. There was no statistically significant difference between the groups using Forsus or AdvanSync. The changes were minimal - mandibular skeletal effects, majorly dentoalveolar effects, and mild soft tissue effects.

RESUMEN

ARTICLE TITLE AND BIBLIOGRAPHIC INFORMATION: A comparison of the effects of Forsus appliances with and without temporary anchorage devices for skeletal Class II malocclusion. Liu L, Zhan Q, Zhou J, Kuang Q, Yan X, Zhang X, Shan Y, Lai W, Long H. Angle Orthod. 2020 Dec 30. doi:10.2319/051120-421.1. Epub ahead of print. PMID: 33378419. SOURCE OF FUNDING: National Natural Science Foundation of China (No. 82,071,147, 81,571,004, and 81,500,884). TYPE OF STUDY/DESIGN: Systematic review with meta-analysis.

Asunto(s)

Maloclusión Clase II de Angle , Aparatos Ortodóncicos Funcionales , Cefalometría , Humanos , Incisivo , Maloclusión Clase II de Angle/terapia , Mandíbula

RESUMEN

Objective @# To assess the result of treatment in ClassⅡmalocclusion subdivision with unilateral Forsus appliance. @*Methods @#23 patients with ClassⅡmalocclusion subdivision were selected, who were treated with Straight wire fixed appliance in combination with unilateral Forsus appliances while another 27 patients were untreated as control group. Lateral cephalographs were taken before and after the comprehensive treatment, and the indicators of dental, skeletal, and soft tissue profile were measured.@*Results @#The Forsus appliance can correct ClassⅡmalocclusion subdivision through distalizing the upper teeth and moving the lower teeth mesially. Midline can be corrected at the same time. There was a statistically significant difference in the amount of tooth movement (P < 0.05). @*Conclusion @#Forsus appliance is an effective device for treating ClassⅡmalocclusion subdivision, which can induce significant dental and soft tissue changes.

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Objective To evaluate and analyze the effects between with modified Forsus appliance and activator in the treatment of class Ⅱ madibular retrusion.Methods 70 children with class Ⅱ malocclusion and mandibular retrusion were selected and divided into two groups:35 patients treated with this modified Forsus appliance (group A) and other 35 treated with activator (group B).Cephalometric radiographs were taken and analyzed at the pre-treatment time (T0) and the post-treatment time (T1) with the Pancherz analysis.Results The course of treatment was obviously different:the course of group A was (21.4±2.0) months,and group B was (27.3±2.5) months; the treatment course of group A was shorter than that of group B.After treatment,profiles of the two groups were obviously improved.The trends were similar in overjet and the molar relationship,SNB and ANB,with significant differences.But there was no significant difference between the results of the two groups.The change of occlusal plane was notably in group B.Conclusions Both the modified Forsus appliance and activator appliance combined with straight wire appliance can effectively stimulate the mandibular growth,balance the jaw relationship,and correct the class Ⅱ mandibular retrusion.But the modified Forsus appliance can effectively treat the class Ⅱ patients with the shorter course.And the same time,it can take effect continually without depending on the coordination of the patients.

RESUMEN

Objective:To investigate the treatment effect of combined forsus appliance on young people's Angel Ⅱ~1 malocclusion. Methods:13 Angel Ⅱ~1 cases during pre-peak or peak period was chosen, treated with combined forsus appliance for an average period of 5.5 months, evaluated treatment effect through cephalometric and cast measurement. Results: All canines and molars have reached class Ⅰ or over-class Ⅰrelations, 13 patients' mandibular retrognathia face have gained significant improvement. Conclusion: The combined forsus appliance can be used in early functional treatment, improve class Ⅱ face type and decrease the difficulty of the second period and enhanced treatment effect.