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Non-carious cervical lesions on permanent anterior teeth: a new morphological classification
J A Michael1, J A Kaidonis, G C Townsend
1School of Dentistry, The University of Adelaide, South Australia, Australia.
Australian Dental Journal
|July 8, 2010
Summary
A new classification system for non-carious cervical lesions was developed based on morphology. This system categorizes lesions into shallow, concave, wedge-shaped, notched, and irregular forms, aiding future research.
Area of Science:
- Dental Morphology
- Cariology
- Restorative Dentistry
Background:
- Non-carious cervical lesions (NCCLs) present diverse forms but lack a formal classification.
- Existing classification systems primarily focus on etiology, not morphology.
Purpose of the Study:
- To describe the morphological spectrum of NCCLs in human teeth.
- To develop a novel classification system for NCCLs based on observable features.
Main Methods:
- Macroscopic examination of over 15,000 extracted human anterior teeth under magnification.
- Development of descriptive categories based on lesion features and existing literature.
- Sorting identified lesions into the established categories.
Main Results:
- Identified 542 NCCLs on 15,289 teeth (3.5% frequency).
- Established five main morphological categories: shallow, concave, wedge-shaped, notched, and irregular.
- Demonstrated the prevalence of these forms in early to mid-20th-century dentition.
Conclusions:
- A new morphological classification system for NCCLs has been proposed.
- This system offers an alternative to etiological classifications.
- The proposed system is expected to enhance future research on NCCLs.
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