Clinical experience of orthodontic treatment combined with extraction treatment for decayed first molar

Objective:To study the feasibility and effects of orthodontic treatment combined with extraction treatment for malocclusion and decayed first molar.Methods:Thirty-five patients with malocclusion and decayed first molars were selected,whose average age was 15.6 years old.Eighteen upper first molars and twenty-nine lower first molars were included.All patients were treated with straight wire appliance.The procedure included bonding brackets,putting arch wire,leveling dentition,closing extraction space and adjusting occlusal relationships routinely.Results:When the treatment was finished,thirty-three cases gained satisfactory results,molar space was completely closed,occlusion was perfect,and the occlusion and facial profile were improved.However,two patients with old defects accepted prosthodontic treatment finally.Conclusions:The orthodontic treatment combined with extraction treatment for the malocclusion and decayed first molar could retain more healthy teeth,gain satisfactory orthodontic results and improve the occlusion.