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Br Dent J. 1998 Feb 14;184(3):125-9.

The prevalence of tooth wear in a cluster sample of adolescent schoolchildren and its relationship with potential explanatory factors.

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1
Department of Conservative Dentistry, UMDS, Guy's Dental Hospital, London Bridge.

Abstract

OBJECTIVE:

To assess the prevalence of tooth wear in adolescents and its relationship with diet, saliva and gastro-oesophageal reflux.

DESIGN:

Single centre cluster sample epidemiological study.

SETTING:

A school in London in the summer of 1996.

SUBJECTS:

11-14-year-old schoolchildren.

MAIN OUTCOME MEASURES:

The Smith and Knight tooth wear index (TWI), salivary factors, diet and symptoms of gastro-oesophageal reflux were recorded for all subjects.

RESULTS:

Results were obtained from 210 subjects. One subject refused to provide a saliva sample and 11 subjects provided insufficient saliva for analysis of buffering power (n = 198). 57% (95% confidence intervals 50.3-63.7%) of subjects had tooth wear on more than ten teeth and a median 12% (interquartile range 6-18%, 95% confidence intervals 8-14%) of surfaces were affected. However, dentine involvement was rare. The median intake of carbonated drinks was 2 cans (interquartile range 1-3) a day. However, there was no correlation with TWI (r = -0.09, P = 0.19). There was no relationship between tooth wear index (TWI) and salivary flow rate (r = -0.02, P = 0.78) or buffering capacity (r = -0.02, P = 0.76). A trend was observed for those with a reported history of regurgitation (n = 27) to have a higher maxillary TWI (median 8, interquartile range 2-13) compared with those who did not (5, 2-9, P = 0.06).

CONCLUSIONS:

Tooth wear is common in adolescents and the relationship with dietary acid, salivary buffering and symptoms of gastro-oesophageal reflux is complex and requires further investigation.

PMID:
9524373
DOI:
10.1038/sj.bdj.4809560
[Indexed for MEDLINE]

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