Clinical Study On Presurgical And Postsurgical Orthodontic Treatment Of Patients With Skeletal Class â…¢ Malocclusion

Objective:1.To clarify the treatment outcomes of skeletal class â…¢ malocclusionpatients through the measurements of pre-treatment, pre-surgical andpost-surgical X-ray cephalometric.2. To provide a reference for clinical practiceby studying the characteristics of orthodontic treatment of skeletal class â…¢malocclusion patients with orthodontic and surgical treatments.Methods:43cases with complete orthodontic-orthognathic surgical treatmentwere selected from the database of Guangxi Medical University Dental Hospital.And the X-ray cephalometric of pre-treatment (T0), pre-surgical (T1) andpost-surgical (T2) were measured by CASSOS software. Then SPSS19.0statistical software was applied to analyzed the hard and soft tissues changesduring different periods of the treatment, and summarize the characteristics ofpre-surgical and post-surgical orthodontic treatment.Results: The facial appearance and the occlusion relationship are both improvedafter orthodontic and surgical treatment. In the32measurements indicator, theface angle and convexity angle changed significantly, the depth of mentolabial sulcus, facial angle, upper lip protrusion, lower lip protrusion improvedobviously. However, the compensation of maxillary teeth remained due to theincomplete decompensation during the pre-surgical orthodontic treatment.Post-surgical orthodontic, similar to comprehensive orthodontic treatment,mainly focused on the maintenance of jaw relationship and adjustment ofocclusion.Conclusions:1. Orthodontic and orthognathic treatment was effective methodfor patients with skeletal class â…¢ malocclusion.2. Not all the indicators after thesurgical treatment meet standard requirements, but concave profile turnedstraight because of the compensatory effect of soft tissue.