External apical root resorption after molar space closure with miniscrew as anchorage: a tomographic evaluation
DOI:
https://doi.org/10.33448/rsd-v9i10.8813Keywords:
Root Resorption; Orthodontic Anchorage Procedures; Tooth movement.Abstract
Objective: The purpose of this retrospective study was to evaluate and quantify external apical root resorption (EARR) in molars after masialization into atrophic alveolar ridge area. Materials and Methods: The sample consisted of 11 patients, five women and six men, and a total of 16 molars, both superior and inferior (seven in the maxilla and nine in the mandible). The age range was 19 to 55 years at the beginning of treatment (initial mean age of 36 years and 5 months), with an average treatment time of 23 months. Tooth movement was performed with mini-implant anchorage using NiTi springs, using a mean force of 300 grams. The sample was evaluated using cone-beam CT scans (CBCT) in two periods, at the beginning of the treatment (T1) and after 4 mm of movement (T2). Root resorption was measured by the difference in root lengths (T2-T1). Using the distance from the floor of the pulp chamber to the root apex as a reference. Root length was measured using specific software (OnDemand3Ddental) and was analyzed using the paired t-test, adopting a significance level of 5%. Results: There was statistically significant resorption only in the mesial and distal roots, with a mean reduction of 0.69 mm in the mesial root (-6.2%) and 0.83 mm in the distal root (-7.4%). Conclusion: Space closure after dental movement in an atrophic alveolar ridge was identified as a risk factor for ARR. However, the amount of ARR could be considered clinically irrelevant.
References
Baumrind, S., Korn, E. L. & Boyd, R. L. (1996). Apical root resorption in orthodontically treated adults. American Journal of OrthodonticS and Dentofacial Orthopedics, 110 (3), 311-320.
Brin, I., Tulloch, J. F., Koroluk, L. & Philips, C. (2003). External apical root resorption in Class II malocclusion: a retrospective review of 1- versus 2-phase treatment. American Journal of Orthodontics and Dentofacial Orthopedics, 124 (2), 151-156.
Carlsson, G. E., Lindquist, L. W. & Jemt, T. (2000). Long-term marginal periimplant bone loss in edentulous patients. The International Journal of Prosthodontics, 13 (4), 295-302.
Castro, I. O.; Alencar, A. H.; Valladares-Neto, J. & Estrela, C. (2013). Apical root resorption due to orthodontic treatment detected by cone beam computed tomography. The Angle Orthodontics, 83 (2), 196-203.
Kim, S. J.; Sung, E. H.; Kim, J. W.; Baik, H. S. & Lee, K. J. (2015). Mandibular molar protraction as an alternative treatment for edentulous spaces: Focus on changes in root length and alveolar bone height. The Journal of Dental American Association. 146 (11), 820-829.
Hagmar, L.; Bonassi, S.; Stromberg, U.; Brogger, A.; Knudsen, L. E; Norppa, H. & Reuterwall, C. (1998). Chromosomal aberrations in lymphocytes predict human cancer: a report from the European Study Group on Cytogenetic Biomarkers and Health (ESCH). Cancer Research, 58 (18), 4117-4121.
Haney, E.; Gansky, S. A.; Lee, J. S.; Johnson, E.; Maki, K.; Miller, A. J. & Huanh, J. C. (2010). Comparative analysis of traditional radiographs and cone-beam computed tomography volumetric images in the diagnosis and treatment planning of maxillary impacted canines. American Journal of Orthodontics and Dentofacial Orthopedics, 137 (5), 590-597.
Houston, W. J. B. (1983). The analysis of errors in orthodontic measurements. American Journal of Orthodontics, 83 (5), 382-390.
Lee, K. J; Joo, E.; Yu, H. S. & Park, Y. C. (2009). Restoration of an alveolar bone defect caused by an ankylosed mandibular molar by root movement of the adjacent tooth with miniscrew implants. American Journal of Orthodontics and Dentofacial Orthopedics, 136 (3), 440-449.
Levander, E. & Malmgren, O. (1998). Evaluation of the risk of root resorption during orthodontic treatment: a study of upper incisors. European Journal of Orthodontics, 10 (1), 30-38.
Linge L, Linge BO. Patient characteristics and treatment variables associated with apical root resorption during orthodontic treatment. American Journal of Orthodontics and Dentofacial Orthopedics. 1991; 99(1):35-43.
Lorenzoni, D. C.; Bolognese, A. M.; Garib, D. G.; Guedes, F. R. & Sant'anna, E. F. (2012). Cone-beam computed tomography and radiographs in dentistry: aspects related to radiation dose. International Journal of Dentistry, 2012, 813768.
Lund, H.; Grondahl, K.; Hansen, K. & Grondahl, H. G. (2012). Apical root resorption during orthodontic treatment. A prospective study using cone beam CT. The Angle Orthodontics, 82 (3), 480-487.
Mavragani, M.; Vergari, A.; Selliseth, N.J.; Boe, O.E. & Wisth, P.L. (2000). A radiographic comparison of apical root resorption after orthodontic treatment with a standard edgewise and a straight-wire edgewise technique. European Journal of Orthodontics, 22 (6), 665-74.
Mirabella, A.D. & Artun, J. (1995) Risk factors for apical root resorption of maxillary anterior teeth in adult orthodontic patients. American Journal of Orthodontics and Dentofacial Orthopedics, 108(1), 48-55.
Park, H.S. (2002). An anatomical study using CT images for the implantation of micro-implants. Korean Journal of Orthodontics, 32 (6), 435-441.
Pereira A.S. et al. (2018). Metodologia da pesquisa científica. [e-book]. Santa Maria. Ed. UAB/NTE/UFSM. Retrieved from https://repositorio.ufsm.br/bitstream/handle/1/15824/Lic _Computacao_Metodologia-Pesquisa-Cientifica.pdf?sequence=1.
Rabie, A. B. & Chay, S. H. (2000) Clinical applications of composite intramembranous bone grafts. American Journal of Orthodontics and Dentofacial Orthopedics, 117 (4), 375-383.
Roberts, W. E.; Marshall, K. J. & Mozsary, P. G. (1990). Rigid endosseous implant utilized as anchorage to protract molars and close an atrophic extraction site. The Angle Orthodontics, 60 (2), 135-52.
Rodriguez-Pato, R. B. (2004). Root resorption in chronic periodontitis: a morphometrical study. Journal of Periodontology, 75 (7), 1027-1032.
Sameshima, G. T. & Sinclair, P. M. (2001). Predicting and preventing root resorption: Part I. Diagnostic factors. American Journal of Orthodontics and Dentofacial Orthopedics, 119 (5), 505-510.
Santos, P.; Herrera-Sanches, F. S; Ferreira, M. C.; de Almeida, A.; Janson, G. & Garib, D. G. (2017). Movement of mandibular molar into edentulous alveolar ridge: A cone-beam computed tomography study. American Journal of Orthodontics and Dentofacial Orthopedics, 151 (5), 907-913.
Taner, T. U.; Germec, D.; Er, N. & Tulunoglu, I. (2006). Interdisciplinary treatment of an adult patient with old extraction sites. The Angle Orthodontics. 76 (6), 1066-73.
Tolstunov, L. (2007). Implant zones of the jaws: implant location and related success rate. Journal of Oral Implantology, 33 (4), 211-220.
Walker, L., Enciso, R. & Mah, J. (2005). Three-dimensional localization of maxillary canines with cone-beam computed tomography. American Journal of Orthodontics and Dentofacial Orthopedics. 128 (4), 418-423.
Weltman, B.; Vig, K. W.; Fields, H. W.; Shanker, S. & Kaizar, E. E. (2010). Root resorption associated with orthodontic tooth movement: a systematic review. American Journal of Orthodontics and Dentofacial Orthopedics. 137 (4). 462-476.
Winkler, J.; Gollner, N.; Gollner, P.; Pazera, P. & Gkantidis, N. (2017). Apical root resorption due to mandibular first molar mesialization: A split-mouth study. American Journal of Orthodontics and Dentofacial Orthopedics 151 (4), 708-717.
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Copyright (c) 2020 Karla de Souza Vasconcelos Coelho; Danilo Pinelli Valarelli; Victor de Miranda Ladewig; Ana Claudia de Castro Ferreira Conti; Renata Rodrigues Almeida-Pedrin; Francyle Simões Herrera Sanches
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