正颌手术对颌面硬组织对称性改变的三维评估

Abstract

Abstract: Objective To study the effectiveness of orthognathic operation on skeletal Class Ⅲ malocclusion in adult patients with facial asymmetry towards the symmetry of maxillofacial hard tissue utilizing CBCT.Methods 19 adult patients of skeletal ClassⅢmalocclusion with facial asymmetry were selected,and all patients were treated with orthodonticorthognathic therapy.CBCT was used to perform 3D scanning on patients to obtain DICOM data before the orthognathic operation (T0) and six months after the orthognathic operation (T1).Dolphin 11.0 was utilized to rebuild the jaws in 3D,16 points describing the maxilla and mandible structure characteristic were chosen,and 20 variables were analyzed by statistics.Results The orthognathic operationwas able to ameliorate the horizontal and saggital asymmetry of the lower parts of inferior part of maxillary for the study group of 19 patients.The length of mandibularbody on both sides and the gradient of mandibular branch were both corrected.Conclusions The orthognathic operation is able to effectively improve adults′ facial asymmetry.The correction on adults with facial asymmetry skeletal Class Ⅲ malocclusion patients is restricted to improving the horizontal and saggital asymmetry of the lower parts of upper jaws as well as the incoherence in the length of mandibular.Accurate 3D measurements before orthognathic operationare critical to making the treatment plan and prognosis judgment.

Key words: facial asymmetry, skeletal class Ⅲ, orthognathic, three dimensional measurement

CLC Number:

R783.5

References

[1]Lee H,Bayome M,Kim SH,et al.Mandibular dimensions of subjects with asymmetric skeletal class Ⅲ malocclusion and normal occlusion compared with conebeam computed tomography[J].Am J Orthod Dentofacial Orthop,2012,142(2):179-185
[2]Baek C,Paeng JY,Lee JS,et al.Morphologic evaluation and classification of facial asymmetry using 3dimensional computed tomography[J].J Oral Maxillofac Surg,2012,70(5):1161-1169
[3]Ko EW,Huang CS,Chen YR.Characteristics and corrective outcome of face asymmetry by orthognathic surgery[J].J Oral Maxillofac Surg,2009,67(10):2201-2209
[4]Hwang HS,Hwang CH,Lee KH,et al.Maxillofacial 3dimensional image analysis for the diagnosis of facial asymmetry[J].Am J Orthod Dentofacial Orthop,2006,130(6):779-785
[5]Hanzelka T,Foltan R.Possible improvement of CBCT scan[J].J Craniomaxillofac Surg,2012,40(1):1-
[6]Van Elslande DC,Russett SJ,Major PW,et al.Mandibular asymmetry diagnosis with panoramic imaging[J].Am J Orthod Dentofacial Orthop,2008,134(2):183-192
[7]Lee H,Bayome M,Kim SH,et al.Mandibular dimensions of subjects with asymmetric skeletal class Ⅲ malocclusion and normal occlusion compared with conebeam computed tomography[J].Am J Orthod Dentofacial Orthop,2012,142(2):179-185
[8]You KH,Lee KJ,Lee SH,et al.Threedimensional computed tomography analysis of mandibular morphology in patients with facial asymmetry and mandibular prognathism[J].Am J Orthod Dentofacial Orthop,2010,138(5):540-
[9]刘翔，夏文倩，穆锦全,等.基于CBCT成像技术的颜面部不对称分类研究初探[J].口腔医学,2012,32(6):328-332
[10]刘可,谷妍,赵春洋,等.成人骨性Ⅲ类颜面部不对称上颌骨三维特征的CBCT探究[J].口腔医学研究,2013,(9):814-817
[11]周会喜,薛国初,缪耀强,等.LeFort Ⅰ型截骨旋转颌平面矫治下颌前突伴偏斜畸形[J].广东医学,2010,(11):1407-1408
[12]王密,于美清,刘俊等.骨性Ⅲ类错〖HT6，7”SS〗牙〖KG-*3〗合〖HT6SS〗伴下颌偏斜成人下颌骨形态的CBCT研究[J].实用口腔医学杂志,2014,30(4):522-525
[13]纪昌蓉，周彦秋.颜面不对称畸形牙弓特征的研究[J].现代口腔医学杂志,2000,14(4):246-248
[14]徐小惠,王建国.成人颜面不对称患者颌面部骨性结构的三维立体分析[J].实用口腔医学杂志,2011,27(2):231-234
[15]Hajeer MY,Ayoub AF,Millett DT.Threedimensional assessment of facial softt5 asymmetry before and after orthognathic surgery[J].Br J Oral Maxillofac Surg,2004,42(5):396-404
[16]Yang HJ,Lee WJ,Yi WJ,et al.Interferences between mandibular proximal and distal segments in orthognathic surgery for patients with asymmetric mandibular prognathism depending on different osteotomy techniques[J].Oral Surg Oral Med Oral Pathol Oral Radiol Endod,2010,110(1):18-24
[17]Jakobsone G,Stenvik A,Sandvik L,et al.Three2011 followup of bimaxillary surgery to correct skeletal Class Ⅲ malocclusion:stability and risk factors for relapse[J].Am J Orthod Dentofacial Orthop,2011,139(1):80-89
[18]Choi SH,Kang DY,Kim YH,et al.Severe skeletal Class Ⅲ malocclusion treated with 2stageorthognathic surgery with a mandibular step osteotomy[J].Am J Orthod Dentofacial Orthop,2014,145(4 Suppl):S125-135

Threedimensional evaluation of orthognathic operation on the maxillofacial hard tissue symmetry change

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 12

Recommended Articles

Metrics

Comments

[1]	Ling ZHU. Research progress of maxillary protraction with miniscrew implant in treatment of skeletal Class Ⅲ malocclusion caused by maxillary deficiency [J]. , 2019, 39(9): 844-848.
[2]	. Orthodontic treatment of an adult patient with mandibular deviation and temporomandibular joint disorder — a case report [J]. , 2018, 38(5): 453-456.
[3]	. The development of maxillary precisely reposition technique in orthognathic surgery [J]. , 2018, 38(10): 934-937.
[4]	. Advances in research of inferior alveolar nerve injury eruption by mandibular sagittal split ramus osteotomy [J]. , 2017, 37(4): 380-384.
[5]	. Skeletal and dental analysis of Class Ⅲ subdivision malocclusions using cone-beam computed tomography [J]. , 2017, 37(3): 233-236.
[6]	Juan DU. Clinical effect analysis of early treatment to skeletal class Ill high angle with the tongue thrust habit cases by maxillary protraction and tongue crib [J]. , 2016, 36(9): 809-812.
[7]	. CBCT research of alveolar bone condition around mandibular incisors in adults with skeletal class Ⅲ malocclusion before and after orthodontic decompensation [J]. , 2016, 36(7): 628-631.
[8]	. Application of guiding templates and splints fabricated by rapid prototyping technique in correction of facial asymmetry [J]. , 2016, 36(6): 519-522.
[9]	. The acoustic study of voice in patients with Class Ⅲ osseous maxillofacial deformities before and after orthognathic surgery [J]. , 2015, 35(7): 560-564.
[10]	. Evaluation of the respiratory function and sleep quality with the polysomnography(PSG),following mandibular retrognathia [J]. , 2014, 34(6): 423-426.
[11]	. [J]. , 2014, 34(6): 464-466.
[12]	. Orthodontic treatment for adult patients with palatally and horizontally impacted maxillary canine in skeletal class Ⅲ malocclusion [J]. , 2013, 33(8): 551-554.