Non-Surgical Approach to Correct Skeletal Open-Bite Malocclusion in an Adult Patient Using Third Molar Intrusion Mechanics: A Clinical Case Report

Abstract

Paradigm is shifting in the orthodontic world with the introduction of mini screw type of temporary anchorage devices (TADs). This clinical report shows treatment and 3-year retention results of nonsurgical and extraction treatment in a 34-year-old female patient treated with maxillary molar intrusion mechanics and habit control. After 24 months of active orthodontic treatment, splendid outcomes were achieved. She presented with a chief complaint of problems in biting from her front teeth. She has a Class II skeletal and dental relationship with increased vertical proportions. Control of vertical dimension and producing autorotation of mandible were the key reasons to reduce facial convexity and improvement in profile. Treatment effects of 5 degrees of autorotation of mandible and 4 mm of maxillary molar intrusion were produced to correct pre-treatment anterior open bite of 5 mm. Based on available clinical evidence, we suggest that TADs with composite buttons on molars can be used as a valuable tool to intrude molars including wisdom teeth, and help correct the skeletal open-bite with good control without buccal tipping.