Similar articles

Abstract: Objective: The purpose of this study was to evaluate three-dimensional (3D) dehiscence of upper anterior alveolar bone during incisor retraction and intrusion in adult patients with maximum anchorage. Methods: Twenty adult patients with bimaxillary dentoalveolar protrusion had the four first premolars extracted. Miniscrews were placed to provide maximum anchorage for upper incisor retraction and intrusion. A computed tomography (CT) scan was performed after placement of the miniscrews and treatment. The 3D reconstructions of pre- and post-CT data were used to assess the dehiscence of upper anterior alveolar bone. Results: The amounts of upper incisor retraction at the edge and apex were (7.64±1.68) and (3.91±2.10) mm, respectively, and (1.34±0.74) mm of upper central incisor intrusion. Upper alveolar bone height losses at labial alveolar ridge crest (LAC) and palatal alveolar ridge crest (PAC) were 0.543 and 2.612 mm, respectively, and the percentages were (6.49±3.54)% and (27.42±9.77)%, respectively. The shape deformations of LAC-labial cortex bending point (LBP) and PAC-palatal cortex bending point (PBP) were (15.37±5.20)° and (6.43±3.27)°, respectively. Conclusions: Thus, for adult patients with bimaxillary protrusion, mechanobiological response of anterior alveolus should be taken into account during incisor retraction and intrusion. Pursuit of maximum anchorage might lead to upper anterior alveolar bone loss.

[1]Akhter, M.P., Cullen, D.M., Recker, R.R., 2002. Bone adaptation response to sham and bending stimuli in mice. J. Clin. Densitom., 5(2):207-216.

[2]AlGhamdi, A.S.T., 2010. Corticotomy facilitated orthodontics: review of a technique. Saudi Dent. J., 22(1):1-5.

[3]Aljhani, A., Zawawi, K.H., 2010. The use of mini-implants in en masse retraction for the treatment of bimaxillary dentoalveolar protrusion. Saudi Dent. J., 22(1):35-39.

[4]Årtun, J., Urbye, K.S., 1988. The effect of orthodontic treatment on periodontalbone support in patients with advanced loss of marginal periodontium. Am. J. Orthod. Dentofacial Orthop., 93(2):143-148.

[5]Cevidanes, L.H.C., Motta, A., Proffit, W.R., Ackerman, J.L., Styner, M., 2010. Cranial base superimposition for 3-dimensional evaluation of soft-tissue changes. Am. J. Orthod. Dentofacial Orthop., 137(4):S120-S129.

[6]Cobo, J., Argüelles, J., Puente, M., Vijande, M.D., 1996. Dentoalveolar stress from bodily tooth movement at different levels of bone loss. Am. J. Orthod. Dentofacial Orthop., 110(3):256-262.

[7]Dahlberg, G., 1940. Statistical methods for medical and biological students. Public Health, 54:92-93.

[8]Decker, J.D., Chen, C., 2009. Adaptive response of the human dentoalveolar process: correction of a Class I protrusive and mutilated dentition, with 32-year follow-up. Am. J. Orthod. Dentofacial Orthop., 135(4):113-122.

[9]Edwards, J.G., 1976. A study of the anterior portion of the palate as it relates to orthodontic therapy. Am. J. Orthod., 69(3):249-273.

[10]Evangelista, K., Vasconcelos, K.F., Bumann, A., Hirsch, E., Nitka, M., Silva, M.A., 2010. Dehiscence and fenestration in patients with Class I and Class II Division 1 malocclusion assessed with cone-beam computed tomography. Am. J. Orthod. Dentofacial Orthop., 138(2):133.e1-133.e7.

[11]Frost, H.M., 1964. Mathematical Elements of Lamellar Bone Remodeling. Charles C Thomas, Springfield, Illinois, p.22-25.

[12]Frost, H.M., 1994. Wolff’s law and bone’s structural adaptations to mechanical usage: an overview for clinicians. Angle Orthod., 64(3):175-188.

[13]Fuhrmann, R., 1996. Three-dimensional interpretation of periodontal lesions and remodeling during orthodontic treatment. J. Orofac. Orthop., 57(4):224-237.

[14]Fuhrmann, R., 2002. Three-dimensional evaluation of periodontal remodeling during orthodontic treatment. Semin. Orthod., 8(1):23-28.

[15]Garib, D.G., Yatabe, M.S., Ozawa, T.O., da Silva Filho, O.G., 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.

[16]Geramy, A., 2000. Alveolar bone resorption and the center of resistance modification (3-D analysis by means of the finite element method). Am. J. Orthod. Dentofacial Orthop., 117(4):399-405.

[17]Houston, W.J.B., 1983. The analysis of errors in orthodontic measurements. Am. J. Orthod., 83(5):382-390.

[18]Hwang, C.J., Moon, J.L., 2001. The limitation of alveolar bone remodeling during retraction of the upper anterior teeth. Korean J. Orthod., 31(1):97-105.

[19]Kim, S.J., Park, Y.G., Kang, S.G., 2009. Effects of Corticision on paradental remodeling in orthodontic tooth movement. Angle Orthod., 79(2):284-291.

[20]Kim, Y., Park, J.U., Kook, Y.A., 2009. Alveolar bone loss around incisors in surgical skeletal Class III patients: a retrospective 3-D CBCT study. Angle Orthod., 79(4):676-682.

[21]Lai, E.H., Yao, C.C., Chang, J.Z., Chen, I., Chen, Y.J., 2008. Three-dimensional dental model analysis of treatment outcomes for protrusive maxillary dentition: comparison of headgear, miniscrew, and miniplate skeletal anchorage. Am. J. Orthod. Dentofacial Orthop., 134(5):636-645.

[22]Liou, E.J., Chang, P.M., 2010. Apical root resorption in orthodontic patients with en-masse maxillary anterior retraction and intrusion with miniscrews. Am. J. Orthod. Dentofacial Orthop., 137(2):207-212.

[23]Liu, H., Liu, D.X., Wang, G.C., Wang, C.L., Zhao, Z., 2010. Accuracy of surgical positioning of orthodontic miniscrews with a computer-aided design and manufacturing template. Am. J. Orthod. Dentofacial Orthop., 137(6):728.e1-728.e10.

[24]Liu, H., Lv, T., Zhao, F., Wang, K.T., Liu, D.X., 2011. Drift characteristics of miniscrews and molars for anchorage under orthodontic force: 3-dimensional computed tomography registration evaluation. Am. J. Orthod. Dentofacial Orthop., 139(1):e83-e89.

[25]Mah, J.K., Huang, J.C., Choo, H., 2010. Practical applications of cone-beam computed tomography in orthodontics. J. Am. Dent. Assoc., 141(3):7-13.

[26]Meikle, M.C., 1980. The dentomaxillary complex and overjet correction in Class II, division 1 malocclusion: objectives of skeletal and alveolar remodeling. Am. J. Orthod., 77(2):184-197.

[27]Meikle, M.C., 2006. The tissue, cellular, and molecular regulation of orthodontic tooth movement: 100 years after Carl Sandstedt. Eur. J. Orthod., 28(3):221-240.

[28]Milne, T.J., Ichim, I., Patel, B., McNaughton, A., Meikle, M.C., 2009. Induction of osteopenia during experimental tooth movement in the rat: alveolar bone remodelling and the mechanostat theory. Eur. J. Orthod., 31(3):221-231.

[29]Nada, R.M., Maal, T.J., Breuning, K.H., Berge, S.J., Mostafa, Y.A., Kuijpers-Jagtman, A.M., 2011. Accuracy and reproducibility of voxel based superimposition of cone beam computed tomography models on the anterior cranial base and the zygomatic arches. PLoS One, 6(2):e16520.

[30]Nakasima, A., Terajima, M., Mori, N., Hoshino, Y., Tokumori, K., Aoki, Y., Hashimoto, S., 2005. Three-dimensional computer-generated head model reconstructed from cephalograms, facial photographs, and dental cast models. Am. J. Orthod. Dentofacial Orthop., 127(3):282-292.

[31]Naraghi, S., 2010. Pattern and Amount of Change of Upper Front Teeth after Retention with a Bonded Retainer. Follow-up One to Seven Years Post Retention. Department of Orthodontics Institute of Odontology at the Sahlgrenska Academy University of Gothenburg, Intellecta Infolog AB, Göteborg, p.31-33.

[32]Nelson, L.A., Michael, S.D., 1998. The application of volume deformation to three-dimensional facial reconstruction: a comparison with previous techniques. Forensic Sci. Int., 94(3):167-181.

[33]Nelson, P.A., Artun, J., 1997. Alveolar bone loss of maxillary anterior teeth in adult orthodontic patients. Am. J. Orthod. Dentofacial Orthop., 111(3):328-340.

[34]Park, H.S., Lee, Y.J., Jeong, S.H., Kwon, T.G., 2008. Density of the alveolar and basal bones of the maxilla and the mandible. Am. J. Orthod. Dentofacial Orthop., 133(1):30-37.

[35]Reitan, K., 1964. Effects of force magnitude and direction of tooth movement on different alveolar bone types. Angle Orthod., 34(4):244-255.

[36]Reitan, K., Kvam, E., 1971. Comparative behavior of human and animal tissue during experimental tooth movement. Angle Orthod., 41(1):1-14.

[37]Sarikaya, S., Haydar, B., Ciğer, S., Ariyürek, M., 2002. Changes in alveolar bone thickness due to retraction of anterior teeth. Am. J. Orthod. Dentofacial Orthop., 122(1):15-26.

[38]Shimpo, S., Horiguchi, Y., Nakamura, Y., Lee, M., Oikawa, T., Noda, K., Kuwahara, Y., Kawasaki, K., 2003. Compensatory bone formation in young and old rats during tooth movement. Eur. J. Orthod., 25(1):1-7.

[39]Vannier, M.W., 2003. Craniofacial computed tomography scanning: technology, applications and future trends. Orthod. Craniofac. Res., 6(s1):23-30.

[40]Wehrbein, H., Fuhrmann, R.A.W., Diedrich, P.R., 1995. Human histologic tissue response after longer term orthodontic tooth movement. Am. J. Orthod. Dentofacial Orthop., 107(4):360-371.

[41]Yao, C.C., Lai, E.H., Chang, J.Z., Chen, I., Chen, Y.J., 2008. Comparison of treatment outcomes between skeletal anchorage and extraoral anchorage in adults with maxillary dentoalveolar protrusion. Am. J. Orthod. Dentofacial Orthop., 134(5):615-624.