CAJ | 학술논문

目的:评估锥体束CT在上颌埋伏尖牙正畸牵引手术开窗定位中的作用. 方法:对12颗上颌埋伏尖牙拍摄锥体束CT,观察其解剖形态、空间位置及毗邻关系,行外科开窗手术后配合正畸牵引,引导其萌出到生理位置.结果:锥体束CT清楚地显示了埋伏上颌尖牙的解剖形态、空间位置及毗邻关系.开窗手术术中所见与锥体束CT显示的上颌埋伏尖牙空间位置信息相一致.12颗埋伏上颌尖牙经外科开窗手术后成功牵引萌出,尖牙形态良好,牙髓活力正常,牵引未引起邻牙牙根吸收. 结论:锥体束CT在埋伏上颌尖牙的定位诊断中具有一定的应用价值.
목적:평고추체속CT재상합매복첨아정기견인수술개창정위중적작용. 방법:대12과상합매복첨아박섭추체속CT,관찰기해부형태、공간위치급비린관계,행외과개창수술후배합정기견인,인도기맹출도생리위치.결과:추체속CT청초지현시료매복상합첨아적해부형태、공간위치급비린관계.개창수술술중소견여추체속CT현시적상합매복첨아공간위치신식상일치.12과매복상합첨아경외과개창수술후성공견인맹출,첨아형태량호,아수활력정상,견인미인기린아아근흡수. 결론:추체속CT재매복상합첨아적정위진단중구유일정적응용개치.
Objective:To review the application of dental cone beam CT for positioning in surgical exposure combined or-thodontic traction of impacted maxillary canines. Methods: 12 pediatric impacted maxillary canines (age 10-13 years) were included in this review. The morphology, location and their relationship with adjacent anatomical structures of the impacted maxillary canines were examined by CBCT. Based on the clinical presentation, radiographic examination, and laboratory investigations, an interdisciplinary approach between the oral radiologist, oral surgeon, orthodontist were in-volved. Surgical exposure of the impacted maxillary canines followed by guided eruption through orthodontic therapy was planned. Results: The dental cone beam CT images provided a much more accurate display of the morphology, location and their relationship with adjacent anatomical structures of the impacted canines. 12 impacted maxillary canines were brought into occlusion successfully with normal morphology, vital dental pulp and non resorption of adjacent tooth. Conclusion:Dental cone beam CT is valuable for precise positioning of impacted maxillary canine.