In this study, reasons and precautions of the high rate of root-fractures in the extraction of teeth for 0 lower impacted third molars with radicis dentis apices of mesial twist (RDAMT) were analyzed by mechanics.
In this study, reasons and precautions of the high rate of root-fractures in the extraction of teeth for 0 lower impacted third molars with radicis dentis apices of mesial twist (RDAMT) were analyzed by mechanics.
对0颗根尖弯向近中的下颌阻生第三磨牙断根率高的原因和预防进行了分析。