口腔颌面外科杂志
口腔頜麵外科雜誌
구강합면외과잡지
CHINESE JOURNAL OF ORAL AND MAXILLOFACIAL SURGERY
2015年
2期
108-112
,共5页
杨晓莉%刑一栋%吕成奇%邹德荣
楊曉莉%刑一棟%呂成奇%鄒德榮
양효리%형일동%려성기%추덕영
双下颌管%变异%CBCT%磨牙管
雙下頜管%變異%CBCT%磨牙管
쌍하합관%변이%CBCT%마아관
bifid mandibular canals%variation%CBCT%retromolar canal
目的：应用CBCT对下颌骨双下颌管情况进行观察和研究，统计其发生概率，为下颌后牙区种植及下颌第三磨牙拔除提供参考。方法：收集2012—2014年上海市第六人民医院口腔科就诊病人200例，征得患者同意登记个人信息并拍摄CBCT。观察患者有无双下颌管，描述其走行特征并进行统计学分析。结果：双下颌管发生率为29.5%，并发现三分支下颌管2例。下颌管分支根据走行方向分成3类：磨牙管、颊舌侧管、前行管。其中磨牙管发生率为20%，颊舌侧管发生率为8%，前行管发生率72%。结论：经CBCT观察发现，双下颌管有较高发生率，在下颌后区进行种植术等各种手术治疗前应拍摄CBCT，警惕双下颌管的存在，防止严重并发症的发生。
目的：應用CBCT對下頜骨雙下頜管情況進行觀察和研究，統計其髮生概率，為下頜後牙區種植及下頜第三磨牙拔除提供參攷。方法：收集2012—2014年上海市第六人民醫院口腔科就診病人200例，徵得患者同意登記箇人信息併拍攝CBCT。觀察患者有無雙下頜管，描述其走行特徵併進行統計學分析。結果：雙下頜管髮生率為29.5%，併髮現三分支下頜管2例。下頜管分支根據走行方嚮分成3類：磨牙管、頰舌側管、前行管。其中磨牙管髮生率為20%，頰舌側管髮生率為8%，前行管髮生率72%。結論：經CBCT觀察髮現，雙下頜管有較高髮生率，在下頜後區進行種植術等各種手術治療前應拍攝CBCT，警惕雙下頜管的存在，防止嚴重併髮癥的髮生。
목적：응용CBCT대하합골쌍하합관정황진행관찰화연구，통계기발생개솔，위하합후아구충식급하합제삼마아발제제공삼고。방법：수집2012—2014년상해시제륙인민의원구강과취진병인200례，정득환자동의등기개인신식병박섭CBCT。관찰환자유무쌍하합관，묘술기주행특정병진행통계학분석。결과：쌍하합관발생솔위29.5%，병발현삼분지하합관2례。하합관분지근거주행방향분성3류：마아관、협설측관、전행관。기중마아관발생솔위20%，협설측관발생솔위8%，전행관발생솔72%。결론：경CBCT관찰발현，쌍하합관유교고발생솔，재하합후구진행충식술등각충수술치료전응박섭CBCT，경척쌍하합관적존재，방지엄중병발증적발생。
Objective: To explore the anatomical features of multiple mandibular canals using cone-beam computed to-mography (CBCT) and evaluate its practical reference in dental implantology and orthognathic surgery. Methods: This study was comprised of 200 patients from 2012 to 2014 in Shanghai Sixth Peoples' Hospital. Patients were fully informed consent. CBCT was performed to observe the anatomical variations of mandibular nerve canal. Describing its characteris-tics of traveling and analyzed statistically. Results: 59 cases (29.5%) of bifid mandibular canals were observed, and two cases showed three manifold mandibular nerve canals. According to the running directions, mandibular canals could be di-vided into 3 categories:retromolar canal, buccal and lingual canal, forward canal. The most frequently encountered type of bifid mandibular canal was the forward type (72%), followed by retromolar type (20%) and buccal and lingual type (8%). Conclusion: CBCT observation revealed a higher prevalence of bifid mandibular canals. Mandibular surgery shall be in alert to avoid mandibular nerve injuries.
