World Journal of Dentistry

Register      Login

VOLUME 9 , ISSUE 6 ( November-December, 2018 ) > List of Articles

REVIEW ARTICLE

Quantitative Classification of Impacted Teeth: A New Proposal

Maraai I Orafi

Keywords : Classification, Impacted canine, Impacted teeth, Impaction, Wisdom teeth

Citation Information : Orafi MI. Quantitative Classification of Impacted Teeth: A New Proposal. World J Dent 2018; 9 (6):523-526.

DOI: 10.5005/jp-journals-10015-1591

License: CC BY-NC 4.0

Published Online: 01-12-2018

Copyright Statement:  Copyright © 2018; Jaypee Brothers Medical Publishers (P) Ltd.


Abstract

Aim: To propose a quantitative classification scheme that is useful for all impacted teeth as well as to describe their angulations, relationships to adjacent teeth and proximity to adjacent vital structures. Materials and methods: The abbreviation SPAN was used as a system of classification. S stands for size, which indicates the relationship of the mesiodistal diameter of the impacted tooth to its normal space. P stands for the position, which indicates the relationship of the most occlusal point of the impacted tooth to the crown of the mesial tooth or distal tooth if the mesial tooth is missing. A stands for angulations, which means the relationship of the long axis of the impacted tooth to that of the adjacent mesial tooth or distal tooth if the mesial one is missing. N stands for proximity to vital structures. Results: This proposal has been applied to some radiographic examples and was found to be effective. Conclusion: This proposal is effective and inexpensive as it only depends on panoramic views. Cone beam computed tomography (CBCT) may become readily available in the future and decrease radiation exposure and expenses, making future classifications more accurate, easier and beneficial. Clinical significance: The scientific rationale for this study is to propose a quantitative classification system for the impacted teeth. This system can be applied to all impacted teeth by using a panoramic view, which is less expensive and readily available. It also describes angulations, space available, depth, and the relationship of the impacted teeth to vital structures. By applying this scheme, the clinicians can quantify surgical difficulty.


PDF Share
  1. Chapokas AR, Almas K, Schincaglia GP. The impacted maxillary canine: a proposed classification for surgical exposure. Oral surgery, oral medicine, oral pathology and oral radiology. 2012 Feb 1;113(2):222-228.
  2. Peterson, Ellis, Hupp, Tucker. Contemporary oral and maxillofacial surgery. Fourth Edition, Mosby. pp 193-213.
  3. Dimitroulis G. A synopsis of minor oral surgery. Reed Educational and Professional Publishing Ltd 1997. Reprinted 2001:50.
  4. Wang W-Q, Chen MYC, Huang H-L, Fuh L-J, Tsai M-T, Hsu J-T. New quantitative classification of the anatomical relationship between impacted third molars and inferior alveolar nerve. BMC Medical imaging 2015;15:59.
  5. Juodzbalys G, Daugela P. Mandibular third molar impaction: review of literature and a proposal of a classification. Journal of oral & maxillofacial research. 2013 Apr;4(2)..
  6. Maglione M, Costantinides F, Bazzocchi G. Classification of impacted mandibular third molars on cone-beam CT images. Journal of clinical and experimental dentistry. 2015 Apr;7(2):e224.
  7. George Varghese K. A practical guide to the management of impacted teeth. Jaypee brothers medical publishers (P) LTD First Edition 2010 pp 166.
  8. Susarla SM, Dodson TB. Estimating third molar extraction difficulty: a comparison of subjective and objective factors. Journal of Oral and maxillofacial Surgery. 2005 Apr 1;63(4):427-434.
  9. Fragiskos D. Oral Surgery. Springer Verlag-Berlin Heidelberg
  10. pp 121-176.
  11. Korbendau JM, Korbendau X. Clinical success in impacted third molar extraction. Quintessence books first edition. pp 39-48.
  12. Carvalho RWF, Vasconcelos BCDE, Falcão PGCB, Campos GJL. Assessment of factors associated with surgical difficulty during removal of impacted lower third molars. International Journal of Oral and Maxillofacial Surgery 2011 Oct;40(10):1139.
  13. Akadiri OA, Obiechina AE. Assessment of difficulty in third molar surgery—a systematic review. Journal of Oral and Maxillofacial Surgery. 2009 Apr 1;67(4):771-774.
  14. Gomes AC, do Egito Vasconcelos BC, de Oliveira Silva ED, de França Caldas Jr A, Neto IC. Sensitivity and specificity of pantomography to predict inferior alveolar nerve damage during extraction of impacted lower third molars. Journal of Oral and Maxillofacial Surgery. 2008 Feb 1;66(2):256-259.
  15. Genú PR, Vasconcelos BC. Influence of the tooth section technique in alveolar nerve damage after surgery of impacted lower third molars. International journal of oral and maxillofacial surgery. 2008 Oct 1;37(10):923-928.
  16. de Melo Albert DG, Gomes AC, do Egito Vasconcelos BC, e Silva ED, Holanda GZ. Comparison of orthopantomographs and conventional tomography images for assessing the relationship between impacted lower third molars and the mandibular canal. Journal of oral and maxillofacial surgery. 2006 Jul 1;64(7):1030-1037.
  17. Wang Y, He D, Yang C, Wang B, Qian W. An easy way to apply orthodontic extraction for impacted lower third molar compressing to the inferior alveolar nerve. Journal of Cranio- Maxillofacial Surgery. 2012 Apr 1;40(3):234-237.
  18. Zhang QB, Zhang ZQ. Early extraction: a silver bullet to avoid nerve injury in lower third molar removal?. International journal of oral and maxillofacial surgery. 2012 Oct 1;41(10):1280-1283.
  19. Schneider T, Filo K, Kruse AL, Locher M, Grätz KW, Lübbers HT. Variations in the anatomical positioning of impacted mandibular wisdom teeth and their practical implications. Swiss dental journal. 2014;124(5):520-538.
  20. Rothamel D, Wahl G, d'Hoedt B, Nentwig GH, Schwarz F, Becker J. Incidence and predictive factors for perforation of the maxillary antrum in operations to remove upper wisdom teeth: prospective multicentre study. British Journal of oral and maxillofacial surgery. 2007 Jul 1;45(5):387-91.
PDF Share

© Jaypee Brothers Medical Publishers (P) LTD.