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Soft Tissue Profile Changes Following Treatment Of Class Ii Division 1 Malocclusion With Different Orthodontic Modalities, Suhatcha Maetevorakul, Smorntree Viteporn

Chulalongkorn University Dental Journal

Objective To compare the soft tissue profile changes of Class II Division 1 patients who were treated by different orthodontic modalities. Materials and Methods The subjects comprised 104 Thai growing patients who presented Class II Division 1 malocclusion and were treated by different orthodontic modalities. Group I: 30 patients were treated with cervical headgear. Group II: 30 patients were treated with Class II traction. Group III: 44 patients were treated as an extraction of the four first premolars. The profile changes were scrutinized from lateral cephalograms before and after treatments by means of the X-Y coordinate system. Significant differences of …