锥形束CT测量上颌中切牙根径及骨板厚度研究
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摘要
目的:用锥形束CT(CBCT)分析上颌中切牙根径及周围骨厚度等情况,为前牙美学区即刻种植提供临床参考依据。方法:选取299例成年患者CBCT影像资料,分别测量上颌中切牙秞牙骨质界(cemento-enamel junction,CEJ)下2mm处牙根的唇腭径/近远中径和唇腭/近远中侧骨板厚度,观察骨开裂/开窗情况,并对不同性别、年龄组差别进行统计学分析。结果:女、男性两切牙唇侧骨开窗分别为9、14例,同一牙位发生率无明显统计学差异(P>0.05)。同一牙位,男性唇腭径、近远中径均大于女性(P<0.05),女性唇侧骨板厚度大于男性(P<0.05),30岁以下组唇侧骨板厚度大于31～50岁组及50岁以上组(P<0.05)。结论:CBCT可以精确测量牙根直径,上颌中切牙CEJ下2mm处近远中径、唇腭径及唇侧骨厚度与性别有关,30岁以下人群唇侧骨板厚。
Objective:To measure root diameter and bone thickness overlying maxillary central incisors to offer more details for immediate implantation in esthetic area.Methods:299patients with CBCT image data were included.Labial-palatal and mesial-distal diameter,labial,palatal,mesial and distal bone thickness,2mm below the cemento-enamel junction(CEJ)were measured.Gender and age difference were analyzed.Results:There were 9and14 fenestrations and dehiscences for female and male(P>0.05).Significance was found in different genders for labial-palatal and mesial-distal diameter(P<0.05).Female or group below 30 had more labial bone(P<0.05).Conclusion:CBCT can be applied for precise measurement.Both mesial-distal and labial-palatal root diameter,2mm beneath the CEJ,had correlation with gender.Thicker bone was found below 30.
Objective:To measure root diameter and bone thickness overlying maxillary central incisors to offer more details for immediate implantation in esthetic area.Methods:299patients with CBCT image data were included.Labial-palatal and mesial-distal diameter,labial,palatal,mesial and distal bone thickness,2mm below the cemento-enamel junction(CEJ)were measured.Gender and age difference were analyzed.Results:There were 9and14 fenestrations and dehiscences for female and male(P>0.05).Significance was found in different genders for labial-palatal and mesial-distal diameter(P<0.05).Female or group below 30 had more labial bone(P<0.05).Conclusion:CBCT can be applied for precise measurement.Both mesial-distal and labial-palatal root diameter,2mm beneath the CEJ,had correlation with gender.Thicker bone was found below 30.
引文
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[18] Lagrav2Re MO,Carey J,Toogood RW,et al.Three-dimensional accuracy of measurements made with software on conebeam computed tomography images[J].Am J Orthod Dentofacial Orthop,2008,134(1):112-116.
[2] El Nahass H,N.Naiem S.Analysis of the dimensions of the labial bone wall in the anterior maxilla:a cone-beam computed tomography study[J].Clin Oral Implants Res,2015,26(4):e57-e61.
[3]吴亚芸,牛忠英,闫澍,等.汉族人上颌中切牙牙根直径及根管管径与年龄关系的研究[J].实用口腔医学杂志,2015,31(6):784-788.
[4]邓如平,张漫.基于CBCT对错牙合畸形切牙区牙槽骨形态的研究[J].口腔医学研究,2018,34(5):535-538.
[5]徐多玲,林臻彦,孙蕾,等.CBCT对80例上颌中切牙与即刻种植相关解剖结构的测量分析[J].口腔医学研究,2014,30(9):858-860.
[6] Gallucci GO,Belser UC,Bernard JP,et al.Modeling and characterization of the CEJ for optimization of esthetic implant design[J].Int J Periodontics Restorative Dent,2004,24(1):19-29.
[7]马兆峰,李石,宋应亮,等.国人上颌美学区牙颈部形态测量及分析[J].中国美容医学杂志,2011,20(4):644-646.
[8]李德华.现代口腔种植学[M].北京:人民军医出版社,2015.134-154.
[9] Vignoletti F,Sanz M.Immediate implants at fresh extraction sockets:from myth to reality[J].Periodontology,2014,66(1):132-152.
[10] Morad G,Behnia H,Motamedian SR,et al.Thickness of labial alveolar bone overlying healthy maxillary and mandibular anterior teeth[J].J Craniofac Surg,2014,25(6):1985-1991.
[11] Farahamnd A,Sarlati F,Eslami S,et al.Evaluation of impacting gactors on gacial none thickness in the snterior maxillary region[J].J Craniofac Surg,2017,28(3):700-705.
[12] Lee SL,Kim HJ,Son MK,et al.Anthropometric analysis of maxillary anterior buccal bone of Korean adults using conebeam CT[J].J Adv Prosthodont,2010,2(3):92-96.
[13] Januario AL,Duarte WR,Barriviera M,et al.Dimension of the facial bone wall in the anterior maxilla:a cone-beam computed tomography study[J].Clin Oral Implants Res,2011,22(10):1168-1171.
[14] Novak MJ,Albather HM,Close JM.Redefining the biologic width in severe,generalized,chronic periodontitis:implications for therapy[J].J Periodontol,2008,79(10):1864-1869.
[15]吴龙,孟凡琦,戴永刚,等.维吾尔族上颌中切牙牙根直径及根管管径的增龄性变化研究[J].口腔医学研究,2017,33(11):1185-1188
[16] Ghassemian M,Nowzari H,Lajolo C,et al.The thickness of facial alveolar bone overlying healthy maxillary anterior teeth[J].Int J Oral Max Surg,2011,40(10):1131-1132.
[17] Rupprecht RD,Horning GM,Nicoll BK,et al.Prevalence of dehiscences and fenestrations in modern American skulls[J].J Periodontol,2001,72(6):722-729.
[18] Lagrav2Re MO,Carey J,Toogood RW,et al.Three-dimensional accuracy of measurements made with software on conebeam computed tomography images[J].Am J Orthod Dentofacial Orthop,2008,134(1):112-116.