不同骨龄患者上颌后牙颊侧骨皮质厚度及其与微种植体脱落率的相关性研究
|
摘要
目的利用CBCT(cone-beam computerized tomography, CBCT)测量不同骨龄患者上颌后牙颊侧微种植体植入区骨皮质厚度,分析骨皮质厚度与微种植体脱落率的相关性,为微种植体的临床应用提供参考。方法挑选110例10～18岁正畸患者进行CBCT扫描,测量双侧上颌第二前磨牙与第一磨牙之间植入区的骨皮质厚度,依据改良颈椎片分期(cervical vertebral maturation, CVM)将研究对象根据骨龄分为4组,分析并比较不同骨龄患者上颌后牙微种植体植入区骨皮质厚度的差异及与微种植体脱落率的相关性。结果不同骨龄间骨皮质厚度在P4及P6平面上均呈逐渐增大趋势,LSD两两比较结果均P<0.05;CS3组、CS4组、CS5组及CS6组在P6平面上颌后牙颊侧微种植体植入区骨皮质厚度均显著高于P4平面,均P<0.05;CS3、CS4、CS5、CS6组脱落率分别为23.21%、11.67%、4.69%和2.50%,随着骨龄的增加呈逐渐降低趋势,其中CS3、CS4组脱落率显著高于CS5、CS6组,P<0.05;Spearman相关分析结果表明,上颌后牙颊侧微种植体植入区P6平面、P4平面骨皮质厚度与骨龄呈正相关(P<0.05),上颌后牙颊侧微种植体脱落与骨龄分组呈负相关(P<0.05)。结论随骨龄增长上颌后牙颊侧微种植体植入区骨皮质厚度逐渐增大,微种植体的稳定性逐渐增强,脱落率逐渐降低。
Objective CBCT was used to measure the thickness of cortical bone at the buccal side of maxillary posterior teeth region among patients of different bone ages. The correlation between cortical bone thickness and microimplant detachment rate in the implanted area was analyzed, thus providing information for research and clinical application of micro-screw anchorage. Methods A total of 110 patients(ten to eighteen years old) underwent CBCT scans to measure the cortical bone thickness at the bilateral maxillary region between second premolar and the first molar.Based on the modified cervical vertebra sort(CS), the subjects were divided into 4 groups(CS3 group, CS4 group, CS5 group and CS6 group). The differences in cortical bone thickness of the implanted anchorage sites at the maxillary posterior region among patients of different bone ages were analyzed and compared The detachment of micro-implant in each group was observed and the correlation between the thickness of cortical bone and the micro-planting stability of different bone age groups was analyzed. Results For CS3, CS4, CS5 and CS6 groups, the cortical bone thickness of the maxillary posterior buccal branch at P6 plane was significantly higher than that at the P4 plane, P<0.05. The CS3, CS4,CS5, CS6 group had the micro-implant detachment rate of 23.21%, 11.67%, 4.69% and 2.50%, respectively. The microimplant detachment rate among patients of different bone ages was statistically significant, and detachment rates of the CS3 and CS4 groups were significantly higher than those of CS5 and CS6 groups(P<0.05). At both P6 plane and P4 plane, Spearman correlation analyses showed a strong positive correlation(P<0.05), between cortical bone thickness and bone age in the buccal side of maxillary posterior teeth region, and a strong negative correlation(P<0.05)between the detachment rate of the micro-implant and the bone age. Conclusion With the increase of bone age, the thickness of cortical bone in the buccal side of maxillary posterior teeth region increases, the stability of the micro-implant increases,and the detachment rate of the micro-implant decreases.
Objective CBCT was used to measure the thickness of cortical bone at the buccal side of maxillary posterior teeth region among patients of different bone ages. The correlation between cortical bone thickness and microimplant detachment rate in the implanted area was analyzed, thus providing information for research and clinical application of micro-screw anchorage. Methods A total of 110 patients(ten to eighteen years old) underwent CBCT scans to measure the cortical bone thickness at the bilateral maxillary region between second premolar and the first molar.Based on the modified cervical vertebra sort(CS), the subjects were divided into 4 groups(CS3 group, CS4 group, CS5 group and CS6 group). The differences in cortical bone thickness of the implanted anchorage sites at the maxillary posterior region among patients of different bone ages were analyzed and compared The detachment of micro-implant in each group was observed and the correlation between the thickness of cortical bone and the micro-planting stability of different bone age groups was analyzed. Results For CS3, CS4, CS5 and CS6 groups, the cortical bone thickness of the maxillary posterior buccal branch at P6 plane was significantly higher than that at the P4 plane, P<0.05. The CS3, CS4,CS5, CS6 group had the micro-implant detachment rate of 23.21%, 11.67%, 4.69% and 2.50%, respectively. The microimplant detachment rate among patients of different bone ages was statistically significant, and detachment rates of the CS3 and CS4 groups were significantly higher than those of CS5 and CS6 groups(P<0.05). At both P6 plane and P4 plane, Spearman correlation analyses showed a strong positive correlation(P<0.05), between cortical bone thickness and bone age in the buccal side of maxillary posterior teeth region, and a strong negative correlation(P<0.05)between the detachment rate of the micro-implant and the bone age. Conclusion With the increase of bone age, the thickness of cortical bone in the buccal side of maxillary posterior teeth region increases, the stability of the micro-implant increases,and the detachment rate of the micro-implant decreases.
引文
1陈英.儿童和青少年下颌第二磨牙生长与牙龄、骨龄相关性研究.重庆医科大学,2016.
2陈莉莉.骨龄在评估颅面生长发育中的应用及其影响因素.口腔医学,2016,36(5):385-389.
3曹小青,张莉,刘龙坤.正畸用微种植钉种植成功的多因素分析.口腔医学研究,2016,32(1):79-82.
4李陆玥,林久祥,陈莉莉.正常牙合青少年颈椎骨龄定量分析法(QCVM)的准确性和重复性探讨.口腔医学,2013,33(4):261-264.
5 Dikson Claudino,Jefferson Traebert,et al.Claudino and traebert,malocclusion,dental aesthetic self-perception and quality of life in a 18 to 21 year-old population:a cross section study.BMCOral Health,2013,(13):3-8.
6 Branemark PI.Osseointegration and its experimental background.J Prosthet Dent,1983,50(3):399-410.
7 Park HS,Jeong SH,Kwon OW.Factors affecting the clinical success of screw implants used as orthodontic anchorage.Am JOrthod Dentofacial Orthop,2006,130(1):18-25.
8 Dalstra M,Cattaneo PM,Melsen B.Load transfer of miniscrews for orthodontic anchorage.Amfiteatru Econ,2004,15(5):583-602.
9 Norton RM,Gamble C.Bone classification:an objective scale of bone density using the computerized tomography scan.Clin Oral Implants Res,2001,12(2):79-84.
10 Migliorati M,Benedicenti S,Signori A,et al.Miniscrew design and bone characteristics:an experimental study of primary stability.Am J Orthod Dentofacial Orthop,2012,142(2):228-234.
11 Dalstra MC,Cattaneo PM,Melsen B.Analysis of stress and strain around orthodontically loaded implants:an animal study.Int J Oral Maxillofac Implants,2007,22(2):213-225.
12 Kim SH,Yoon HG,Choi YS,et al.Evaluation of interdental space of the maxillary posterior area for orthodontic mini-implants with cone-beam computed tomography.Am JOrthod Dentofacial Orthop,2009,135(5):635-641.
13嵇国平,于泉,沈刚.性别、年龄与微种植钉支抗稳定性的关系.上海口腔医学,2008,17(4):360-363.
2陈莉莉.骨龄在评估颅面生长发育中的应用及其影响因素.口腔医学,2016,36(5):385-389.
3曹小青,张莉,刘龙坤.正畸用微种植钉种植成功的多因素分析.口腔医学研究,2016,32(1):79-82.
4李陆玥,林久祥,陈莉莉.正常牙合青少年颈椎骨龄定量分析法(QCVM)的准确性和重复性探讨.口腔医学,2013,33(4):261-264.
5 Dikson Claudino,Jefferson Traebert,et al.Claudino and traebert,malocclusion,dental aesthetic self-perception and quality of life in a 18 to 21 year-old population:a cross section study.BMCOral Health,2013,(13):3-8.
6 Branemark PI.Osseointegration and its experimental background.J Prosthet Dent,1983,50(3):399-410.
7 Park HS,Jeong SH,Kwon OW.Factors affecting the clinical success of screw implants used as orthodontic anchorage.Am JOrthod Dentofacial Orthop,2006,130(1):18-25.
8 Dalstra M,Cattaneo PM,Melsen B.Load transfer of miniscrews for orthodontic anchorage.Amfiteatru Econ,2004,15(5):583-602.
9 Norton RM,Gamble C.Bone classification:an objective scale of bone density using the computerized tomography scan.Clin Oral Implants Res,2001,12(2):79-84.
10 Migliorati M,Benedicenti S,Signori A,et al.Miniscrew design and bone characteristics:an experimental study of primary stability.Am J Orthod Dentofacial Orthop,2012,142(2):228-234.
11 Dalstra MC,Cattaneo PM,Melsen B.Analysis of stress and strain around orthodontically loaded implants:an animal study.Int J Oral Maxillofac Implants,2007,22(2):213-225.
12 Kim SH,Yoon HG,Choi YS,et al.Evaluation of interdental space of the maxillary posterior area for orthodontic mini-implants with cone-beam computed tomography.Am JOrthod Dentofacial Orthop,2009,135(5):635-641.
13嵇国平,于泉,沈刚.性别、年龄与微种植钉支抗稳定性的关系.上海口腔医学,2008,17(4):360-363.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |