尖牙窝区解剖因素与种植技术相关性的锥形束CT测量分析  

Measurement and analysis anatomy factors of maxillary canine fossa related to implanting technology by cone-beam CT

作　　者：郑兴[1,2] 何家才[1] 

机构地区：[1]安徽医科大学附属口腔医院,安徽省口腔医院口腔种植中心,合肥230032 [2]安徽省淮南市新康医院口腔科口腔种植中心,淮南232001

出　　处：《安徽医科大学学报》2017年第6期925-929,共5页Acta Universitatis Medicinalis Anhui

基　　金：安徽省科技攻关项目(编号:1604a0802082)

摘　　要：利用锥形束CT(CBCT)扫描成像,对不同矢状骨面型患者上颌骨尖牙窝区解剖结构进行测量分析;在前磨牙区模拟植入不同直径的种植体,测量不同骨面型尖牙窝、种植体的相关数据,分析两者位置关系。Ⅰ类、Ⅱ类、Ⅲ类面型患者第一前磨牙区尖牙窝骨倒凹深度分别为(4.33±0.73)、(3.77±0.58)、(5.18±0.93)mm,第二前磨牙区尖牙窝骨倒凹深度分别为(3.20±0.63)、(2.81±0.58)、(3.90±0.79)mm。性别、左右及是否缺牙的差异均无统计学意义;3种面型患者骨倒凹差异均有统计学意义(P<0.05)。第一前磨牙存在时发生唇侧穿孔时种植体长度为(10.30±1.70)mm(d=3.3 mm)、(8.77±1.58)mm(d=4.1 mm),第二前磨牙存在时发生唇侧穿孔时种植体长度为(8.09±1.51)mm(d=3.3 mm)、(6.69±1.35)mm(d=4.1 mm);第一前磨牙缺失时发生唇侧穿孔时种植体长度为(8.98±1.54)mm(d=3.3mm)、(7.67±1.52)mm(d=4.1 mm),第二前磨牙缺失时发生唇侧穿孔时种植体长度为(7.09±1.59)mm(d=3.3mm)、(5.79±1.34)mm(d=4.1 mm),是否缺牙差异有统计学意义(P<0.05)。在上颌尖牙窝区进行种植手术,尤其Ⅲ类骨面型患者,术前通过CBCT分析尖牙窝与种植体的位置关系,避免唇侧穿孔,保证种植体的三维植入方向。Cone-beam computed tomography（CBCT） was used to analyze the anatomic morphology of maxillary ca- nine fossa of different sagittal skeletal patterns patients ; implants of various dimensions were virtually placed into the maxillary premolars region. The relationships among maxillary canine fossa and implant were analyzed. The depth of the maxillary canine fossa was （4.33 ± 0.73 ）, （ 3.77 ± 0.58 ）, （ 5.18 ± 0.93 ）mm in the 1 st premolar region of class Ⅰ, Ⅱand m respectively. The depth of the maxillary canine fossa was （ 3.20± 0.63 ）, （ 2. 81 ± 0. 58 ）, （ 3.90 ± 0. 79） mm in the 2nd premolar region of class Ⅰ , Ⅱ and m respectively. There were no significant statisti- cal differences in genders, sides, and loss of tooth. And there were significant statistical differences in three classes （P 〈0.05 ）. The length of the implants was （ 10. 30 ± 1.70） mm（ d = 3.3 mm） and （ 8.77 ±1.58 ） mm（ d = 4. 1 mm） in the 1 st premolar region and （8.09 ± 1.51 ）mm （ d = 3.3 mm）, （6.69 ± 1.35 ）mm （ d = 4. 1 mm） in the 2nd premolar region in patients with teeth and buccal perforation;the length of the implants was （8.98 ± 1.54） mm （d=3.3 mm） and （7.67 ±1.52）mm（d =4. 1 ram） in the 1st premolar region and（7.09 ± 1.59）mm（d =3.3 mm） and （5.79±1.34）mm（d =4. 1 mm） in the 2nd premolar region in patients with tooth loss,respectively. There were significant statistical differences in loss of tooth （ P 〈 0.05 ）. Analyzing of spatial relationships among maxillary canine fossa and implants of different sagittal skeletal patterns patients especially class m patients, by u- sing CBCT has important significance in guiding dental implants.

关 键 词：上颌骨 矢状骨面型 尖牙窝 牙种植体 锥形束CT 

分 类 号：R782.05[医药卫生—口腔医学]