CAJ | 학술논문

目的：通过测量与正畸微种植体植入相关的牙体距离和软组织距离，确定上颌后牙区正畸微种植体支抗植入的安全区。方法采用21例正畸前患者颅面部锥形束CT扫描重建图像，使用测量软件测量上颌左右两侧后牙区距水平面6、8、10、12、14、16?mm处相邻两牙牙根的近远中距离，游标卡尺测量双侧上颌后牙临床牙冠的高度，牙周探针测量双侧上颌后牙区附着龈的宽度。结果上颌第二前磨牙和第一磨牙近中颊根之间的近远中距离最大，上颌第一前磨牙的牙冠高度最大，上颌第二磨牙的附着龈宽度最大。结论上颌后牙处微种植体植入的安全区位于上颌第二前磨牙与第一磨牙之间，距相邻两牙颊尖连线垂直高度10~11 mm处。
목적：통과측량여정기미충식체식입상관적아체거리화연조직거리，학정상합후아구정기미충식체지항식입적안전구。방법채용21례정기전환자로면부추형속CT소묘중건도상，사용측량연건측량상합좌우량측후아구거수평면6、8、10、12、14、16?mm처상린량아아근적근원중거리，유표잡척측량쌍측상합후아림상아관적고도，아주탐침측량쌍측상합후아구부착간적관도。결과상합제이전마아화제일마아근중협근지간적근원중거리최대，상합제일전마아적아관고도최대，상합제이마아적부착간관도최대。결론상합후아처미충식체식입적안전구위우상합제이전마아여제일마아지간，거상린량아협첨련선수직고도10~11 mm처。
?Objective???This?study?aimed?to?measure?the?distance?between?a?tooth?and?a?soft?tissue.?This?study?also?aimed?to?determine?the?safe?region?of?micro-implant?for?orthodontic?anchorage?positioning?in?the?posterior?maxillary?alveolar?bone.?Methods???Twenty-one?cone?beam?computed?tomography?reconstruction?images?of?the?craniofacial?bone?of?pre-orthodontic?patients?were?used?in?this?research.?Both?sides?of?the?mesiodistal?distance?of?the?two?adjacent?teeth?in?the?posterior?maxillary?alveolar?bone?were?measured?at?6,?8,?10,?12,?14,?and?16?mm?from?the?horizontal?plane.?A?vernier?caliper?was?used?to?measure?the?clinical?crown?height?of?the?posterior?maxillary?teeth?in?the?plaster?maxillary?dentition?model.?A?periodontal?probe?along?the?long?axis?of?a?tooth?was?used?to?determine?the?width?of?the?free?gingiva?and?the?width?from?the?gingival?margin?to?the?mucogingival?junction.?Results ?In?the?posterior?area?of?the?maxilla,?the?widest?mesiodistal?distance?of?tooth?roots?was?between?the?second?premolar?and?the?first?molar.?Among?the?teeth,?the?maxillary?first?premolar?yielded?the?highest?crown?height.?The?maxillary?second?molar?region?showed?the?widest?attached?gingiva.?Conclusion??The?safe?region?of?the?micro-implant?is?located?in?the?second?premolar?and?the?first?molar;?the?vertical?distance?from?the?horizontal?plane?is?10-11?mm.