背景:全上颌骨缺失多以上颌赝复体进行修复,其中,最困难的问题是赝复体难以获得良好的固位和支持,种植体在颧骨区的应用为解决此棘手问题提供了途径.然而,在颧骨区行种植术时,有可能损伤周围组织并导致种植失败.目的:测量颧骨区骨性结构,为颧骨区种植术提供参考依据.设计:以颅骨标本为研究对象,随机抽样的重复观察测量.单位:一所军医大学口腔医学院修复科和人体解剖教研室.对象:2002-03/05在解放军第四军医大学人体解剖教研室完成.成人干燥颅骨标本(由第四军医大学人体解剖教研室提供)73个,男性标本38个,女性标本35个.方法:以游标卡尺等测量工具对73例标本进行实体定量测量,对测量结果进行统计学t检验.主要观察指标:颧骨区骨厚度,颧骨体下部宽度,颧骨体长度,颧骨体下部与眶下壁距离.结果:①由颧骨内下缘向其外上方,骨厚度逐渐减小,测量结果为:男性:距颧骨内下缘10,12,14,16 mm处,骨厚度均值上半区分别为:6.97,6.45,5.75和5.01 mm;下半区分别为:7.03,6.69,6.28和5.89 mm.女性:距颧骨内下缘4,6,8,10 mm处,骨厚度均值上半区分别为:6.95,6.55,6.28和5.31 mm,下半区分别为:6.60,6.39,6.26和5.75 mm.②男女颧骨体下部宽度均值分别为21.39,17.20 mm.③男女颧骨长度均值分别为21.12,19.58 mm.④男女颧骨体下部与眶下壁距离均值分别为4.17,3.71 mm.结论:在全上颌骨缺失时,可于双侧颧骨内下方各植入两枚种植体,并使两者相距15 mm以上,作为上颌赝复体的固位基础;在男性,适宜植入直径为3.6～4.0 mm,长度为10～12 mm或14～16 mm的种植体,在女性,适宜植入直径为3.4～3.8 mm,长度为4～6 mm或8～10 mm的种植体;在颧骨区,男女骨量差异有显著性意义,男性明显优于女性,在上颌骨缺损修复中应区别对待.
揹景:全上頜骨缺失多以上頜贗複體進行脩複,其中,最睏難的問題是贗複體難以穫得良好的固位和支持,種植體在顴骨區的應用為解決此棘手問題提供瞭途徑.然而,在顴骨區行種植術時,有可能損傷週圍組織併導緻種植失敗.目的:測量顴骨區骨性結構,為顴骨區種植術提供參攷依據.設計:以顱骨標本為研究對象,隨機抽樣的重複觀察測量.單位:一所軍醫大學口腔醫學院脩複科和人體解剖教研室.對象:2002-03/05在解放軍第四軍醫大學人體解剖教研室完成.成人榦燥顱骨標本(由第四軍醫大學人體解剖教研室提供)73箇,男性標本38箇,女性標本35箇.方法:以遊標卡呎等測量工具對73例標本進行實體定量測量,對測量結果進行統計學t檢驗.主要觀察指標:顴骨區骨厚度,顴骨體下部寬度,顴骨體長度,顴骨體下部與眶下壁距離.結果:①由顴骨內下緣嚮其外上方,骨厚度逐漸減小,測量結果為:男性:距顴骨內下緣10,12,14,16 mm處,骨厚度均值上半區分彆為:6.97,6.45,5.75和5.01 mm;下半區分彆為:7.03,6.69,6.28和5.89 mm.女性:距顴骨內下緣4,6,8,10 mm處,骨厚度均值上半區分彆為:6.95,6.55,6.28和5.31 mm,下半區分彆為:6.60,6.39,6.26和5.75 mm.②男女顴骨體下部寬度均值分彆為21.39,17.20 mm.③男女顴骨長度均值分彆為21.12,19.58 mm.④男女顴骨體下部與眶下壁距離均值分彆為4.17,3.71 mm.結論:在全上頜骨缺失時,可于雙側顴骨內下方各植入兩枚種植體,併使兩者相距15 mm以上,作為上頜贗複體的固位基礎;在男性,適宜植入直徑為3.6～4.0 mm,長度為10～12 mm或14～16 mm的種植體,在女性,適宜植入直徑為3.4～3.8 mm,長度為4～6 mm或8～10 mm的種植體;在顴骨區,男女骨量差異有顯著性意義,男性明顯優于女性,在上頜骨缺損脩複中應區彆對待.
배경:전상합골결실다이상합안복체진행수복,기중,최곤난적문제시안복체난이획득량호적고위화지지,충식체재권골구적응용위해결차극수문제제공료도경.연이,재권골구행충식술시,유가능손상주위조직병도치충식실패.목적:측량권골구골성결구,위권골구충식술제공삼고의거.설계:이로골표본위연구대상,수궤추양적중복관찰측량.단위:일소군의대학구강의학원수복과화인체해부교연실.대상:2002-03/05재해방군제사군의대학인체해부교연실완성.성인간조로골표본(유제사군의대학인체해부교연실제공)73개,남성표본38개,녀성표본35개.방법:이유표잡척등측량공구대73례표본진행실체정량측량,대측량결과진행통계학t검험.주요관찰지표:권골구골후도,권골체하부관도,권골체장도,권골체하부여광하벽거리.결과:①유권골내하연향기외상방,골후도축점감소,측량결과위:남성:거권골내하연10,12,14,16 mm처,골후도균치상반구분별위:6.97,6.45,5.75화5.01 mm;하반구분별위:7.03,6.69,6.28화5.89 mm.녀성:거권골내하연4,6,8,10 mm처,골후도균치상반구분별위:6.95,6.55,6.28화5.31 mm,하반구분별위:6.60,6.39,6.26화5.75 mm.②남녀권골체하부관도균치분별위21.39,17.20 mm.③남녀권골장도균치분별위21.12,19.58 mm.④남녀권골체하부여광하벽거리균치분별위4.17,3.71 mm.결론:재전상합골결실시,가우쌍측권골내하방각식입량매충식체,병사량자상거15 mm이상,작위상합안복체적고위기출;재남성,괄의식입직경위3.6～4.0 mm,장도위10～12 mm혹14～16 mm적충식체,재녀성,괄의식입직경위3.4～3.8 mm,장도위4～6 mm혹8～10 mm적충식체;재권골구,남녀골량차이유현저성의의,남성명현우우녀성,재상합골결손수복중응구별대대.
BACKGROUND: The rehabilitation of maxillary loss is based on maxillary prosthesis,and the most difficult problem is that retention and support of maxillary prosthesis can hardly be achieved. The employment of implants in the zygoma region provides good basis for the retention and support of maxillary prosthesis. However,during implantation in the zygoma the pe
ripheral tissues may be injured, and even induce failed implantation.OBJECTIVE: To study the bone structure of the zygoma so as to provide reference for implantation in this region.DESIGN: Randomized sampling for repeated observation measurement based on maxilla specimens.SETTING: The research was completed in the prosthodontic department of stomatological college and department of human anatomy of a military medical university.PARTICIPANTS:The experiment was carried out in the Department of Human Anatomy,Fourth Military Medical University of Chinese PLA from March to May 2002. A total of 73 adult maxilla specimens(38 from males and 35 from females) were provided by the Department of Human Anatomy,Fourth Military Medical University of Chinese PLA.METHODS: Quantitative measurement of bone structure of the zygoma region was made with the cursor ruler in the 73 specimens. T-test was used to analyze the measurement data.MAIN OUTCOME MEASURES: The data of measurement: bone thickness of the zygoma, width of the lower part of the zygoma, length of the zygoma, and the distance between lower part of the zygoma and orbital floor.RESULTS: ① Bone thickness gradually decreased from the interior-inferior borderline to the exterior-superior part of the zygoma. In males, the average bone thickness 10 mm,12 mm,14 mm and 16 mm away from the interior-inferior borderline of the zygoma was 6.97 mm, 6.45 mm, 5.75 mm and 5. 01 mm, respectively, in the upper part, and 7.03 mm, 6.69 mm, 6.28 mm and 5.89 mm in the lower part. In females, the average bone thickness 4 mm,6 mm, 8 mm and 10 mm away from the interior-inferior borderline was 6.95 mm,6. 55 mm,6.28 mm and 5.31 mm in the upper part,and 6.60 mm, 6. 39 mm,6.26 mm and 5.75 mm in the lower part. ② The lower part of the zygoma was 21.39 mm wide in males and 17.20 mm in
females. ③ The average length of the zygoma was 21. 12 mm in males and 19.58 mm in females. ④ The average distance between lower part of the zygoma and orbital floor was 4. 17 mm in males and 3.71 mm in females.CONCLUSION: In maxillary loss,the zygoma is an optimal region for double implants at a distance of more than 15 mm. In males, the implants of 3.6 -4.0 mm in diameter and 10 - 12 mm or 14 - 16 mm in lengthcan be employed; in females, the implants of 3.4 - 3.8 mm in diameter and 4 - 6 mm or 8- 10 mm in length can be employed.The differences in bone quantity between males and females are statistically significant in the zygoma,males' better than females', so they should be treated differently during clinical practice.
