J Korean Acad Periodontol.  2009 Mar;39(1):17-26. 10.5051/jkape.2009.39.1.17.

Effects of non-carious cervical lesions and class V restorations on periodontal conditions

• Kim HJ
• Kim SJ
• Choi JI
• Lee JY

• KMID: 1783512
• DOI: http://doi.org/10.5051/jkape.2009.39.1.17

Abstract

PURPOSE: The non-carious cervical lesion(NCCL) is a loss of tooth structure at the neck of affected teeth that is unrelated to tooth caries. The reported prevalence of NCCL varies from 5% to 85%. Prevalence and severity of lesions have been found to increase with age. They are becoming more significant as people live longer and become more aware of the importance of oral health. The purposes of this study were first, to examine the periodontal conditions associated with NCCL, and second, to investigate the clinical effects of class V restorations of NCCL on periodontal tissues.
MATERIALS AND METHODS
The sample size was 982 teeth of 50 subjects(25 male, mean age 52+/-7) who were seen at the Department of Periodontology, Pusan National University Hospital. At the baseline examination, clinical periodontal parameters were measured. After the initial examination, 24 patients who were absent from hypersensitivity were selected. The teeth with NCCL were randomly divided into the test and control groups. The teeth in the test group were restored with flowable resin; the control teeth were not restored. Six months later, the clinical examinations were repeated. The data were analyzed using the SPSS program.
RESULTS
The results were as follows: 1) NCCL occurred on 45.8% of examined teeth. The percentage of affected teeth was higher in maxillary and premolar teeth. 2) The shallow saucer type was the most common. 3) Teeth with NCCL had more gingival recession, lower attachment level, and higher incidences of bleeding on probing(BOP) and plaque than NCCL-free teeth. 4) Six months later, gingival recession, attachment level, the percentages of BOP and plaque in the test group were lower than in the control group(p<0.05).
CONCLUSION
NCCLs were more found in maxillary teeth, especially in premolar teeth. The results suggest that the restoration of NCCL could affect some periodontal parameters favorably

Keyword

NCCL; class V restoration; periodontal condition

MeSH Terms

Bicuspid
Gingival Recession
Hemorrhage
Humans
Hypersensitivity
Incidence
Male
Neck
Oral Health
Prevalence
Sample Size
Tooth

Figure

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  Figure 1 Angular shape of cervical lesion in buccolingual cross section. (A) Wedge shape, (B) Saucer shape

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  Figure 2 Dimension of cervical lesion in buccolingual cross section; horizontal depth

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  Figure 3 The Distribution of the non-carious cervical lesions according to their location and shape. All the population had more than one non-carious cervical lesion.

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