Abstract
To propose a method of establishing the reference mandibular plane (MP), which could be reestablished according to the coordinates of the reference points, and then facilitate the assessment of anterior alveolar morphology using cone beam computed tomography (CBCT), sixty patients with bimaxillary protrusion were randomly selected and CBCT scans were taken. The CBCT scans were transferred to Materialism’s interactive medical image control system 10.01 (MIMICS 10.01), and three dimensional models of the entire jaws were constructed. Reference points determining the reference MP were positioned in the coronal, axial, sagittal windows, and the points were exactly located by recording their coordinates in the interfaces of software. The reference MP provided high intra-observer reliability (Pearson’s r 0.992 to 0.999), and inter-observer reliability (intra-class correlation coefficients (ICCs) 0.996 to 0.999).
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References
Aasen, T.O., Espeland, L., 2005. An approach to maintain orthodontic alignment of lower incisors without the use of retainers. Eur. J. Orthod., 27(3):209–214. [doi:10.1093/ejo/cji012]
Bimstein, E., Crevoisier, R.A., King, D.L., 1990. Changes in the morphology of the buccal alveolar bone of protruded permanent mandibular incisors secondary to orthodontic alignment. Am. J. Orthod. Dentofacial Orthop., 97(5): 427–430. [doi:10.1016/0889-5406(90)70115-S]
Chen, C.H., Nakano, H., Liou, E., Maki, K., 2010. A cone beam computer tomographic study of the cortical bone thickness in different class II facial patterns. Orthodontic Waves, 69(4):131–137. [doi:10.1016/j.odw.2010.06.003]
Chen, Y.J., Chen, S.K., Yao, J.C., Chang, H.F., 2004. The effects of differences in landmark identification on the cephalometric measurements in traditional versus digitized cephalometry. Angle Orthod., 74(2):155–161.
Dahlberg, G., 1940. Statistical methods for medical and biological students. Public Health, 54:92–93. [doi:10.1016/S0033-3506(40)80086-3]
Downs, W.B., 1948. Variation in facial relationships: their significance in treatment and prognosis. Am. J. Orthod., 34(10):812–840. [doi:10.1016/0002-9416(48)90015-3]
Garib, D.G., Yatabe, M.S., Ozawa, T.O., Filho, O.G.S., 2010. Alveolar bone morphology under the perspective of the computed tomography: defining the biological limits of tooth movement. Dental Press J. Orthod., 15(5):192–205. [doi:10.1590/S2176-94512010000500023]
Guo, Q.Y., Zhang, S.J., Liu, H., Wang, C.L., Wei, F.L., Lv, T., Wang, N.N., Liu, D.X., 2011. Three-dimensional evaluation of upper anterior alveolar bone dehiscence after incisor retraction and intrusion in adult patients with bimaxillary protrusion malocclusion. J. Zhejiang Univ.-Sci. B (Biomed. & Biotechnol.), 12(12):990–997. [doi:10.1631/jzus.B1100013]
Handelman, C.S., 1996. The anterior alveolus: its importance in limiting orthodontic treatment. Angle Orthod., 66(2): 95–110.
Leonardi, R., Annunziata, A., Caltabiano, M., 2008. Landmark identification error in posteroanterior cephalometric radiography. Angle Orthod., 78(4):761–765. [doi:10.2319/0003-3219(2008)078[0761:LIEIPC]2.0.CO;2]
Major, P.W., Johnson, D.E., Hesse, K.L., Glover, K.E., 1994. Landmark identification error in posterior anterior cephalometrics. Angle Orthod., 64(6):447–454.
Maki, K., Inou, N., Takanishi, A., Miller, A.J., 2003. Computer-assisted simulation in orthodontic diagnosis and the application of a new cone bean X-ray computed tomography. Orthod. Craniofac. Res., 6(s1):95–101. [doi:10.1034/j.1600-0544.2003.241.x]
Menezes, C.C., Janson, G., Massaro, C.S., Cambiaghi, L., Garib, D.G., 2010. Reproducibility of bone plate thickness measurements with cone-beam computed tomography using different image acquisition protocols. Dental Press J. Orthod., 15(5):143–149. [doi:10.1590/S2176-94512010000500017]
Nowzari, H., Molayem, S., Chiu, C.H., Rich, S.K., 2012. Cone beam computed tomographic measurement of maxillary central incisors to determine prevalence of facial alveolar bone width ≥2 mm. Clin. Implant Dent. Relat. Res., 14(4): 595–602. [doi:10.1111/j.1708-8208.2010.00287.x]
Simten, S., Bülent, H., Semra, C., Macit, A., 2002. Changes in alveolar bone thickness due to retraction of anterior teeth. Am. J. Orthod. Dentofacial Orthop., 122(1):15–26. [doi:10.1067/mod.2002.119804]
Vardimon, A.D., Oren, E., Ben-Bassat, Y., 1998. Cortical bone remodelling/tooth movement ratio during maxillary incisor retraction. Am. J. Orthod. Dentofacial Orthop., 114(5):520–529. [doi:10.1016/S0889-5406(98)70172-6]
Yamada, C., Kitai, N., Kakimoto, N., Murakami, S., Furukawa, S., Takada, K., 2007. Spatial relationships between the mandibular central incisor and associated alveolar bone in adults with mandibular prognathism. Angle Orthod., 77(5):766–772. [doi:10.2319/072906-309]
Yu, Q., Pan, V.G., Ji, G.P., Shen, G., 2009. The association between lower incisal inclination and morphology of the supporting alveolar bone—a cone-beam CT study. Int. J. Oral Sci., 11 (4):217–223. [doi:10.4248/IJOS09047]
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Project supported by the Shandong Science and Technology Planning Project Contract Research (No. 2009GG10002059) of China and the Shandong University Dental School Project Research (Nos. 2011JC009, P2009009, and 2012JC031), China
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Wang, Ry., Han, M., Liu, H. et al. Establishment of reference mandibular plane for anterior alveolar morphology evaluation using cone beam computed tomography. J. Zhejiang Univ. Sci. B 13, 942–947 (2012). https://doi.org/10.1631/jzus.B1200052
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DOI: https://doi.org/10.1631/jzus.B1200052