青年男性骨性Ⅲ类错(牙合)不同垂直骨面型侧貌的研究
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摘要
目的:比较青年男性骨性Ⅲ类错(牙合)不同垂直骨面型的软组织侧貌特征。方法:选择90例青年男性骨性Ⅲ类错(牙合)并拍摄锥形束CT(cone-beam computed tomography,CBCT),依据下颌平面角的大小(MP-FH和MP-SN),分为高角组,均角组和低角组,每组各30例。应用6种侧貌软组织分析法中14个测量项目对每组进行测量并分析。结果:三组测量项目的 Bs-H线、Z角和Pog-Sn⊥FH测量值差异有统计学意义(P<0.05);分别属于Holdway分析法、Merrifield分析法和Epker分析法。与均角组及低角组相比,高角组Bs-H线测量值最小,高角组颏唇沟最浅。与高角组及均角组相比,低角组Z角最大,提示低角患者面容突度更大;Pog-Sn⊥FH在低角组测量值最大,低角组颏部突出程度更大。结论:青年男性骨性Ⅲ类错(牙合)患者不同垂直骨面型软组织侧貌存在差异,应依据患者的具体面容特征制定出更符合个体的治疗方案,以达到更加良好的治疗效果。
Objective: To compare the soft tissue profile characteristics of different vertical facial types of skeletal Class Ⅲ in young males.Methods: Ninety untreated young males patients with skeletal Class Ⅲ underwent Cone-beam computed tomography(CBCT).Basing on the magnitude of the mandibular plane angle(MP-FH and MP-SN),they were divided into three groups that high angle group,mean angle group and low angle group.Each group consisted of 30 subjects.Fourteen items of six different soft tissue profile analysis were used to measure each group. The measurement indexes of each group were statistically analyzed. The discrepancy between the three groups were compared. Results: The measurement items that have statistical differences were Bs-H line,Z angle and Pog-Sn⊥FH in three groups.They are respectively belong to Holdway analysis,Merrifield analysis and Epker analysis.Compared with the mean and the low angle group,the measurement value of Bs-H line was the smallest in the high angle group,mentolabial sulcus was more flatter. Compared with the high and the mean angle group,the measurement value of Z angle was the largest in the low angle group,suggesting that he low angle group's facial protrusion was greater. And the measurement value of Pog-Sn⊥FH was the largest,the chin protrusion was greater in the low angle group.Conclusion: There are discrepancy features in soft tissue profile of different vertical facial types in young males patients with skeletal Class Ⅲ.It is necessary to provide a more individual treatment plan basing on the specific facial features of the patients so as to achieve better therapeutic effect.
Objective: To compare the soft tissue profile characteristics of different vertical facial types of skeletal Class Ⅲ in young males.Methods: Ninety untreated young males patients with skeletal Class Ⅲ underwent Cone-beam computed tomography(CBCT).Basing on the magnitude of the mandibular plane angle(MP-FH and MP-SN),they were divided into three groups that high angle group,mean angle group and low angle group.Each group consisted of 30 subjects.Fourteen items of six different soft tissue profile analysis were used to measure each group. The measurement indexes of each group were statistically analyzed. The discrepancy between the three groups were compared. Results: The measurement items that have statistical differences were Bs-H line,Z angle and Pog-Sn⊥FH in three groups.They are respectively belong to Holdway analysis,Merrifield analysis and Epker analysis.Compared with the mean and the low angle group,the measurement value of Bs-H line was the smallest in the high angle group,mentolabial sulcus was more flatter. Compared with the high and the mean angle group,the measurement value of Z angle was the largest in the low angle group,suggesting that he low angle group's facial protrusion was greater. And the measurement value of Pog-Sn⊥FH was the largest,the chin protrusion was greater in the low angle group.Conclusion: There are discrepancy features in soft tissue profile of different vertical facial types in young males patients with skeletal Class Ⅲ.It is necessary to provide a more individual treatment plan basing on the specific facial features of the patients so as to achieve better therapeutic effect.
引文
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[14]Hernández-Alfaro F,Nieto MJ,Ruiz-Magaz V,et al.Inferior subapical osteotomy for dentoalveolar decompensation of class III malocclusion in‘surgery-first’and‘surgery-early’orthognathic treatment[J].Int J O-ral Maxillofac Surg,2017,46(1):80-85.
[15]Park JH,Yu J,Bullen R.Camouflage treatment of skeletal Class IIImalocclusion with conventional orthodontic therapy[J].Am J Orthod Dentofacial Orthop,2017,151(4):804-811.
[16]刘学军,韩新光,陈薇.成人骨性Ⅲ类错(牙合)颅底和颅颌面结构特征及识别[J].临床口腔医学杂志,2018,34(8):502-506.
[17]徐舒豪,黄诗言,饶南荃,等.上颌横向发育不足的临床治疗进展[J].临床口腔医学杂志,2016,32(4):251-253.
[18]王晴竹,林久祥.6种软组织分析法在骨性Ⅲ类错(牙合)侧貌评价[J].中华口腔正畸学杂志,2012,19(1):12-16.
[2]Liao YF,Lo SH.Surgical occlusion setup in correction of skeletal class III deformity using surgery-first approach:guidelines,characteristics and accuracy[J].Sci Rep,2018,8(1):1-8.
[3]Liew S,Wu WT,Chan HH,et al.Consensus on changing trends,attitudes,and concepts of Asian beauty[J].Aesthetic Plast Surg,2016,40(2):193-201.
[4]Schudy FF.The rotation of the mandible resulting from growth:its implications in orthodontic trartment[J].Angle Orthod,1965,35:36-50.
[5]涂景秋,樊佳倩,雷勇华.不同垂直骨面型个别正常下颌骨形态及牙列特征研究[J].华西口腔医学杂志,2017,35(4):403-407.
[6]Ahmed M,Shaikh A,Fida M.Diagnostic performance of various cephalometric parameters for the assessment of vertical growth pattern[J].Dental Press J Orthod,2016,21(4):41-49.
[7]Kasai K.Soft tissue adaptability to hard tissues in facial profiles[J].Am J Orthod Dentofacial Orthop,1998,113(6):674-684.
[8]Aras I,Olmez S,Akay MC,et al.The effects of maxillary expansion on the soft tissue facial profile[J].J Istanb Univ Fac Dent,2017,51(3):1-10.
[9]Damon DH.The rationale,evolution and clinical application of the selfligating bracket[J].Clin Orthod Res,1998,1(1):52-61.
[10]Van Dessel J,Nicolielo LF,Huang Y,et al.Accuracy and reliability of different cone beam computed tomography(CBCT)devices for structural analysis of alveolar bone in comparison with multislice CT and microCT[J].Eur J Oral Implantol,2017,10(1):95-105.
[11]贾培增,吴威.不同垂直骨面型者的颏部形态[J].华西口腔医学杂志,2007,25(2):142-144.
[12]于爽,邵玶.不同垂直骨面型骨性Ⅲ类错(牙合)唇颏部软组织形态特征研究[J].中国美容医学,2018,27(2):123-126.
[13]舒艳,刘珺,陈杰,等.成人骨性Ⅲ类错(牙合)不同垂直骨面型下颌骨及颏部的比较[J].上海口腔医学,2011,20(2):191-195.
[14]Hernández-Alfaro F,Nieto MJ,Ruiz-Magaz V,et al.Inferior subapical osteotomy for dentoalveolar decompensation of class III malocclusion in‘surgery-first’and‘surgery-early’orthognathic treatment[J].Int J O-ral Maxillofac Surg,2017,46(1):80-85.
[15]Park JH,Yu J,Bullen R.Camouflage treatment of skeletal Class IIImalocclusion with conventional orthodontic therapy[J].Am J Orthod Dentofacial Orthop,2017,151(4):804-811.
[16]刘学军,韩新光,陈薇.成人骨性Ⅲ类错(牙合)颅底和颅颌面结构特征及识别[J].临床口腔医学杂志,2018,34(8):502-506.
[17]徐舒豪,黄诗言,饶南荃,等.上颌横向发育不足的临床治疗进展[J].临床口腔医学杂志,2016,32(4):251-253.
[18]王晴竹,林久祥.6种软组织分析法在骨性Ⅲ类错(牙合)侧貌评价[J].中华口腔正畸学杂志,2012,19(1):12-16.