Three-dimensional localization of impacted canines and root resorption assessment using cone beam computed tomography

Abstract

The purpose of this study was to develop a new way to localize the impacted canines from three dimensions and to investigate the root resorption of the adjacent teeth by using cone beam computed tomography (CBCT). Forty-six patients undergoing orthodontic treatments and having impacted canines in Tongji Hospital were examined. The images of CBCT scans were obtained from KaVo 3D exam vision. Angular and linear measurements of the cusp tip and root apex according to the three planes (mid-sagittal, occlusal and frontal) have been taken using the cephalometric tool of the InVivo Dental Anatomage Version 5.1.10. The measurements of the angular and linear coordinates of the maxillary and mandibular canines were obtained. Using this technique the operators could envision the location of the impacted canine according to the three clinical planes. Adjacent teeth root resorption of 28.26 % was in the upper lateral incisors while 17.39% in upper central incisors, but no lower root resorption was found in our samples. Accurate and reliable localization of the impacted canines could be obtained from the novel analysis system, which offers a better surgical and orthodontic treatment for the patients with impacted canines.

Keywords

impacted canines / root resorption / cone beam computed tomography

References

[1] ThilanderB, JakobssonSO. Local factors in impaction of maxillary canines. Acta Odontol Scand, 1968, 26(1–2): 145-168

[2] PredaL, La FianzaA, Di MaggioEM, et al.. The use of spiral computed tomography in the localization of impacted maxillary canines. Dento Maxillofac Radiol, 1997, 26(4): 236-241

[3] WalkerL, EncisoR, MahJ. Three-dimensional localization of maxillary canines with cone-beam computed tomography. Am J Orthod Dentofacial Orthop, 2005, 128(4): 418-423

[4] MasonC, PapadakouP, RobertsGJ. The radiographic localization of impacted maxillary canines: a comparison of methods. Eur J Orthod, 2001, 23(1): 25-34

[5] RossiniG, CavalliniC, CassettaM, et al.. Localization of impacted maxillary canines using cone beam computed tomography. Review of literature. Ann Stomatol (Roma), 2012, 3(1): 14-18

[6] ElefteriadisJN, AthanasiouAE. Evaluation of impacted canines by means of computerized tomography. Int J Adult Orthodon Orthognath Surg, 1996, 11(3): 257-264

[7] EricsonS, KurolJ. Resorption of maxillary lateral incisors caused by ectopic eruption of the canines. Am J Orthod Dentofacial Orthop, 1988, 94(6): 503-513

[8] PeckS, PeckL, KatajaM. The palatally displaced canine as a dental anomaly of genetic origin. Angle Orthod, 1994, 64(4): 249-256

[9] JacobsSG. The impacted maxillary canine. Further observations on aetiology, radiographic localization, prevention/interception of impaction, and when to suspect impaction. Aust Dent J, 1996, 41(5): 310-316

[10] MonteliusGA. Impacted teeth. A comparative study of Chinese and Caucasian dentitions. J Dent Res, 1932, 12(6): 931-938

[11] BisharaSE. Impacted maxillary canines: A review. Am J Orthodentofacial Orthop, 1992, 101(2): 159-171

[12] EricsonS, KurolJ. Incisor root resorption due to ectopic maxillary canines imaged by computerized tomography: a comparative study in extracted teeth. Angle Orthod, 2000, 70(4): 276-283

[13] EricosnS, BjerklinK, FalahatB. Does the canine dental follicle cause resorption of permanent root? A computed tomography study of erupting maxillary canines. Angle Orthod, 2002, 72(2): 95-104

[14] EricsonS, BjerklinK. The dental follicle in normally and ectopically erupting maxillary canines: a computed tomography study. Angle Orthod, 2001, 71(5): 333-342

[15] WaitzmanAA, PosnickJC, ArmstrongDC, et al.. Craniofacial skeletal measurements based on computed tomography: part II. Normal values and growth trends. Cleft Palate Craniofac J, 1992, 29(2): 118-128

[16] EricsonS, KurolJ. CT diagnosis of ectopically erupting maxillary canines-a case report. Eur J Orthod, 1988, 10(1): 115-121

[17] BodnerL, Bar-ZivJ, BeckerA. Image accuracy of plain film radiography and computerized tomography in assessing morphological abnormality of impacted teeth. Am J Orthod Dentofacial Orthop, 2001, 120(6): 623-628

[18] BoeddinghausR, WhyteA. Current concepts in maxilla facial imaging. Eur J Radiol, 2008, 66(3): 396-418

[19] LouL, LagravereMO, ComptonS, et al.. Accuracy of measurements and reliability of landmark identification with computed tomography (CT) techniques in the maxillofacial area: a systematic review. Oral Surg Oral Med Oral Pathol Oral Radiol Endod, 2007, 104(3): 402-411

[20] BercoM, RigaliPHJr, MinerRM, et al.. Accuracy and reliability of linear cephalometric measurements from cone-beam computed tomography scans of a dry human skull. Am J Orthod Dentofacial Orthop, 2009, 136(1): 17. e1-17.e9

[21] OlszewskiR, ReychlerH, CosnardG, et al.. Accuracy of three-dimensional (3D) craniofacial cephalometric landmarks on a low-dose 3D computed tomograph. Dentomaxillofac Radiol, 2008, 37(5): 261-267

[22] NagpalA, PaiKM, SettyS, et al.. Localization of impacted maxillary canines using panoramic radiography. J Oral Sci, 2009, 51(1): 37-45

[23] BotticelliS, VernaC, CattaneoPM, et al.. Two-versus three-dimensional imaging in subjects with unerupted maxillary canines. Eur J Ortho, 2011, 33(4): 344-349

[24] TomasiC, BressanE, CorazzaB, et al.. Reliability and reproducibility of linear mandible measurements with the use of a cone-beam computed tomography and two object inclinations. Dentomaxillofac Radiol, 2011, 40(4): 244-250

[25] Santos TdeS, GomesAC, de MeloDG, et al.. Evaluation of reliability and reproducibility of linear measurements of cone-beam-computed tomography. Indian J Dent Res, 2012, 23(4): 473-478

[26] EricsonS, KurolJ. Resorption of incisors after ectopic eruption of maxillary canines: a CT study. Angle Orthod, 2000, 70(6): 415-423

[27] HassanB, NijkampP, VerheijH, et al.. Precision of identifying cephalometric landmarks with cone beam computed tomography in vivo. Eur J Orthod, 2013, 35(1): 38-44

[28] ChienPC, ParksET, ErasoF, et al.. Comparison of reliability in anatomical landmark identification using two-dimensional digital cephalometrics and threer-dimensional cone beam computed tomography in vivo. Dentomaxillofac Radiol, 2009, 38(5): 262-273

[29] LudlowJB, GublerM, CevidanesL, et al.. Precision of cephalometric landmark identification: Cone-beam computed tomography vs conventional cephalometric views. Am J Orthod Dentofacial Orthop, 2009, 136(3): 312. e1-312. e10

[30] KatkarRA, KummetC, DawsonD, et al.. Comparison of observer reliability of three-dimensional cephalometric landmark identification on subject images from Galileos and i-CAT cone beam CT. Dentomaxillofac Radiol, 2013, 42(9): 20130059

[31] ZamoraN, LlamasJM, CibriánR, et al.. A study on the reproducibility of cephalometric landmarks when undertaking a three-dimensional^(3D) cephalometric analysis. Med Oral Patol Oral Cir Bucal, 2012, 17(4): 678-688

[32] LiuDG, ZhangWL, ZhangZY, et al.. Three dimensional evaluations of supernumerary teeth using cone-beam computed tomography for 487 cases. Oral Surg Oral Med Oral Pathol Oral Radiol Endod, 2007, 103(3): 403-411