CAJ | 학술논문

目的：探讨成人下颌第三磨牙的存在状态与矢状向和垂直向骨面型之间的关系。方法：对200例正畸患者的曲面断层片和头颅侧位片进行测量分析。根据下颌第三磨牙的存在状态分为萌出组，垂直阻生组，近中阻生组，水平阻生组（阻生组根据Winter，s分类方法）。对组间的变量进行统计学分析。结果：萌出组与各阻生组的ANB角、Wits值、ANS－Me和Go－Po＇之间的差异有统计学意义。萌出组与近中阻生组和水平阻生组的SN／MP、FH／MP和Co－Go／Co－Po之间的差异有统计学意义。结论：下颌第三磨牙的存在状态与不同骨面型之间都存在一定的关系。矢状向骨性II类和低角短面患者更易发生下颌第三磨牙阻生。
목적：탐토성인하합제삼마아적존재상태여시상향화수직향골면형지간적관계。방법：대200례정기환자적곡면단층편화두로측위편진행측량분석。근거하합제삼마아적존재상태분위맹출조，수직조생조，근중조생조，수평조생조（조생조근거Winter，s분류방법）。대조간적변량진행통계학분석。결과：맹출조여각조생조적ANB각、Wits치、ANS－Me화Go－Po＇지간적차이유통계학의의。맹출조여근중조생조화수평조생조적SN／MP、FH／MP화Co－Go／Co－Po지간적차이유통계학의의。결론：하합제삼마아적존재상태여불동골면형지간도존재일정적관계。시상향골성II류화저각단면환자경역발생하합제삼마아조생。
Objective:To investigate the relationship between conditon of mandibular third molars and sagittal and vertical skeletal facial types in adults. Method:Two hundred orthodontic patients were analyzed from panoramic radiographs and lateral cephalometric radiographs.The subjects were divided into four groups,erupted group,vertical impacted group, mesial impacted group,horizontal impacted group(according to Winter,s classification). Differences among groups'variables were caluated for statistical analysis. Result:ANB angle、Wits value、ANS-Me and Go-Po' demonstrated significant differ-ences between erupted group and each impacted groups.SN/MP、FH/MP and Co-Go/Co-Po showed significant differ-ences between erupted group and mesial and horizontal impacted group. Conclusion:The mandibular third molars had rela-tionships with different skeletal facial types.The mandibular third molars were more likely impacted in patients with skeletal class II and low angle and short facial form.