Advertisement
Oral and maxillofacial radiology| Volume 122, ISSUE 6, P765-771, December 2016

A review of cone beam computed tomography for the diagnosis of root resorption associated with impacted canines, introducing an innovative root resorption scale

Published:October 07, 2016DOI:https://doi.org/10.1016/j.oooo.2016.08.015

      Objective

      The aim of the study was to review all cases referred for cone beam computed tomography (CBCT) to the department of dental radiology at the Leeds Dental Institute to aid diagnosis of root resorption associated with impacted canines. We aimed to establish if referral for and reporting of these CBCT assessments were in compliance with current guidelines. In addition, we introduced a new and innovative tool to aid reporting of CBCT images of root resorption associated with an impacted tooth. All plain film radiographs taken before CBCT were reviewed to determine if root resorption was evident or suspected from the plain film radiographs.

      Study Design

      Root resorption was recorded from plain film radiographs taken before CBCT by using a resorption scale designed by the authors for assessing root resorption associated with impacted canines (Two-Dimensional Leeds Resorption Scale). CBCT radiography reports of all cases were reviewed to identify cases with confirmed root resorption.

      Results

      All cases referred for CBCT were compliant with guidelines relating to referrals and reporting.

      Conclusions

      CBCT provided improved detection rates (63%) of root resorption associated with impacted canines. The resorption scale developed by the authors (Three-Dimensional Leeds Orthodontic Root Resorption Target Scale) is intended to address the subjective nature of reporting of CBCT images taken to assess root resorption associated with impacted teeth.
      To read this article in full you will need to make a payment

      Purchase one-time access:

      Academic & Personal: 24 hour online accessCorporate R&D Professionals: 24 hour online access
      One-time access price info
      • For academic or personal research use, select 'Academic and Personal'
      • For corporate R&D use, select 'Corporate R&D Professionals'

      References

        • Ludlow J.B.
        • Davies-Ludlow L.E.
        • Brooks S.L.
        • Howerton W.B.
        Dosimetry of 3 CBCT devices for oral and maxillofacial radiology: CB Mercuray, NewTom 3 G and i-CAT.
        Dentomaxillofac Radiol. 2006; 35: 219-226
        • Silva M.A.
        • Wolf U.
        • Heinicke F.
        • Bumann A.
        • Visser H.
        • Hirsch E.
        Cone-beam computed tomography for routine orthodontic treatment planning: a radiation dose evaluation.
        Am J Orthod Dentofacial Orthop. 2008; 133: 640.e1-640.e5
        • Merrett S.J.
        • Drage N.
        • Siphahi S.D.
        The use of cone beam computed tomography in planning supernumerary cases.
        J Orthod. 2013; 40: 38-46
        • Ericson S.
        • Kurol J.
        Longitudinal study and analysis of clinical supervision of maxillary canine eruption.
        Commun Dent Oral Epidemiol. 1986; 14: 172-176
        • Hurme V.O.
        Ranges of normalcy in the eruption of permanent teeth.
        J Dent Child. 1949; 16: 11-15
        • Ericson S.
        • Kurol J.
        Radiographic examination of ectopically erupting maxillary canines.
        Am J Orthod Dentofacial Orthop. 1987; 91: 483-492
        • Walker L.
        • Enciso R.
        • Mah J.
        Three-dimensional localization of maxillary canines with cone-beam computed tomography.
        Am J Orthod Dentofacial Orthop. 2005; 128: 418-423
        • Peck S.
        • Peck L.
        • Kataja M.
        The palatally displaced canine as a dental anomaly of genetic origin.
        Angle Orthod. 1994; 64: 249-256
        • Peck S.
        • Peck L.
        • Kataja M.
        Concomitant occurrence of canine malposition and tooth agenesis: evidence of orofacial genetic fields.
        Am J Orthod Dentofacial Orthop. 2002; 122: 657-660
        • Brin I.
        • Becker A.
        • Shalhav M.
        Position of the maxillary permanent canine in relation to anomalous or missing lateral incisors: a population study.
        Eur J Orthod. 1986; 8: 12-16
        • Ericson S.
        • Kurol J.
        Resorption of maxillary lateral incisors caused by ectopic eruption of the canines. A clinical and radiographic analysis of predisposing factors.
        Am J Orthod Dentofacial Orthop. 1988; 94: 503-513
        • Hurme V.O.
        Developmental opacities of teeth in a New England community: their relation to fluorine toxicosis.
        Am J Dis Child. 1949; 77: 61-75
        • Alqerban A.
        • Jacobs R.
        • Souza P.C.
        • Willems G.
        In-vitro comparison of 2 cone-beam computed tomography systems and panoramic imaging for detecting simulated canine impaction-induced external root resorption in maxillary lateral incisors.
        Am J Orthod Dentofacial Orthop. 2009; 136 (discussion 764-765): 764.e1-764.e11
        • Faculty of General Dental Practice
        Selection Criterior for Dental Radiography.
        Royal College of Surgeons of England, London, UK2004
        • European Commission
        Radiation Protection. Guidelines on CBCT for Dental and Maxillofacial Radiology.
        European Union, Brussels, Belgium2012
        • National Radiological Protection Board
        Guidance Notes for Dental Practitioners on the Safe Use of X-Ray Equipment.
        Department of Health, London, UK2001
        • Malmgren O.
        • Goldson L.
        • Hill C.
        • Orwin A.
        • Petrini L.
        • Lundberg M.
        Root resorption after orthodontic treatment of traumatized teeth.
        Am J Orthod. 1982; 82: 487-491