刘盈盈,郑之峻,徐卫华
LIU Yingying,ZHENG Zhijun,XU Weihua

• 1:贵州医科大学口腔医学院
• 2:贵州医科大学
• 3:贵阳市口腔医院正畸科
• 4:贵州医科大学附院正畸科

摘要(Abstract)：

目的:探讨口腔锥形束CT(CBCT)在测量青少年上颌骨三维形态中的价值。方法:40例青少年,根据CBCT的SNA(由蝶鞍中心、鼻根点及上牙槽座点所构成的角)与SNB(由蝶鞍中心、鼻根点及下牙槽座点所构成的角)大小不同均分为上颌骨正常组(正常组)和上颌骨发育不足组(发育不足组),采用CBCT建立上颌骨三维数据,测量上牙槽座点(A)、鼻骨最前点(ANB)、前鼻棘点(ANS)、后鼻棘点(PNS)、颅底点(Ba)、蝶鞍点(S)、眶下点(Or)、耳点(P)、上颌尖牙牙槽缘点(SPC)及上颌第一磨牙缘点(SPM)到矢状面(S)、水平面(H)及冠状面(C)的距离,比较这些数据在两组被检测者男女性之间的差异。结果:按男、女性别分别比较,发育不足组中A点到HP、CP距离,ANB点到CP距离,ANS到HP、CP距离,PNS点到CP的距离,SPM(L)点到HP、CP、SP的距离,SPM(R)点到HP的距离,SPC(L)点到HP、CP、SP的距离,SPC(R)点到HP、CP、SP的距离均小于正常组(P<0.05)。结论:CBCT建立的三维数据可用于诊断青少年上颌骨发育不足。
Objective: To investigate the value of oral cone beam CT( CBCT) in the measurement of the three-dimensional shape of adolescents' maxillary. Methods: According to difference of CBCT SNA( composed of sella center,nasal root and point a angle) and SNB( composed of sella nasion center,and point B angle),40 cases of teenagers were divided into maxillary normal group and no maxillary hypoplasia group. CBCT was adopted to establish three-dimensional data of maxillary,and measure the distance from the alveolar point( A),the point of nasal bone( ANB),nasospinale( ANS),staphylion( PNS),skull base point( Ba),sella point( S),infraorbital point( Or),ear point( P),maxillary canine alveolar edge point( SPC) and the edge point of the maxillary first molar( SPM) to the sagittal plane( SP),to horizontal plane( HP) and to coronal plane( CP),respectively. The differences of these data detected between the sexes in the two groups were compared. Results: The distance from A to HP and CP,the distance from ANB to CP,the distance from ANS to HP and CP,the distance fromPNS to CP,the distance from SPM( L) to HP,CP and SP,the distance from SPM( R) to HP,the distance from SPC( L) to HP,CP and SP,and the distance from SPC( R) to HP,CP and SP of maxillary hypoplasia group were all less than their counterparts of maxillary normal group. Conclusion:The three-dimensional data established by CBCT can be used for the diagnosis of maxillary hypoplasia in adolescents.

关键词(KeyWords)： 诊断;口腔;锥形束CT;上颌骨发育不全;青少年;成像,三维
diagnosis;oral;cone beam CT;maxillary dysplasia;adolescent;imaging;three dimensional

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 刘盈盈,郑之峻,徐卫华
LIU Yingying,ZHENG Zhijun,XU Weihua

DOI: 10.19367/j.cnki.1000-2707.2016.08.021

参考文献(References)：

• [1]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(6):779-785.
• [2]Van Elslande DC,Russett SJ,Major PW,et al.Mandibular asymmetry diagnosis with panoramic imaging[J].Am J Orthod Dentofacial Orthop,2008(2):183-192.
• [3]Brent E,Larson.Cone-beam computed tomography is the imaging technique of choice for comprehensive orthodontic assessment[J].Am J Orthod Dentofacial Orthop,2012(4):402-411.
• [4]Chang ZC,Hu FC,Lai E,el at.Landmark identificantion errors on cone-beam computed tomography-derived cephalograms and comventional digital cephalograms[J].Am J Orthod Dentofacial Orthop,2011(6):289-297.
• [5]李宏权,杨育生.上颌骨形态三维测量的初步研究[J].口腔颌面外科杂志,2012(6):409-415.
• [6]Park SH,Yu HS,Kim KD,et al.A proposal for a new analysis of craniofacial morphology by 3-dimensional computed tomography[J].Am J Orthod Dentoficial Orthop,2006(6):405-408.
• [7]Scarfe WC,Farman AG,Sukovic P.Clinical applications of cone beam computrd tomography in dental practice[J].J Can Dent Assoc,2006(1):75-80.
• [8]Palomo JM,Kau CH,Palomo LB,et al.Three-dimesional cone beam computerized tomography indentistry[J].Dent Today,2006(11):130,132-135.
• [9]赵颖.Cone Beam CT技术及其在口腔正畸学中的应用[J].口腔医学研究,2008(5):579-582.
• [10]Baumgaertel S,Palomo JM,Palomo L,et al.Reliability and accuracy of cone-beam computed tomography denral measurements[J].Am J Orthod Dentofacial Orthop,2009(1):19-25.
• [11]陈扬熙.口腔正畸学——基础、技术与临床[M].北京:人民卫生出版社,2012:622-623.
• [12]于美清,董福生,刘怀军.18~25岁无鼾正常殆人上气道结构的磁共振研究[J].现代口腔医学杂志,2007(3):287-290.
• [13]谷岩,Bakrm K,Hagg RU.前方牵引矫治器治疗安氏Ⅲ类错合畸形-20例病例临床分析[J].口腔正畸学,2007(3):118-122.
• [14]傅民魁,张丁,王邦康.中国25 392名儿童与青少年错合畸形患病率的调查[J].中华口腔医学杂志,2002(5):317-337.
• [15]刘伟涛,周彦恒.两种不同的扩弓方法结合上颌前方牵引的初步研究[J].中华口腔正畸学杂志,2009(1):45-49.
• [16]庄金良.应用Coben分析法评价前方牵引治疗上颌发育不足的临床疗效[J].华西口腔医学杂志,2015(1):58-62.
• [17]Da Luz Vieira G,de Menezes LM,de Lima EM,et al.Dentoskeletal effects of maxillary protraction in cleft patients with repetitive weekly protocol of alternate rapid maxillary expansions and constrictions[J].Cleft Palate Craniofac J,2009(4):391-398.

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