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Non‐carious cervical lesions on permanent anterior teeth: a new morphological classification
Author(s) -
Michael JA,
Kaidonis JA,
Townsend GC
Publication year - 2010
Publication title -
australian dental journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.701
H-Index - 71
eISSN - 1834-7819
pISSN - 0045-0421
DOI - 10.1111/j.1834-7819.2010.01228.x
Subject(s) - magnification , medicine , dentistry , anterior teeth , orthodontics , lesion , pathology , computer science , artificial intelligence
Background: Various cross‐sectional forms of non‐carious cervical lesions have been described but no formal morphological classification system has been developed. The aims of this study were to describe the spectrum of common morphological forms of non‐carious cervical lesions observed within a large sample of extracted human permanent anterior teeth and to develop a system for classification based on morphological features. Methods: Over 15 000 extracted permanent anterior teeth were examined macroscopically under illumination at 2× magnification. Well‐defined, descriptive categories were formed, based on observable non‐carious cervical lesion features and using terminology currently reported in the literature. The lesions were then sorted into these categories. Results: Five hundred and forty‐two non‐carious cervical lesions were identified on 15 289 teeth extracted in the early to mid 20th century, representing a frequency of 3.5%. The main categories developed were “shallow”, “concave”, “wedge‐shaped”, “notched”, and “irregular”. Conclusions: The new morphological classification system provides an alternative to presently used systems based on aetiology, and should facilitate future research on non‐carious cervical lesions.