September 2011

Volume 28, Issue 3

The relationship between tooth wear in the primary and permanent dentitions

Authors: S.H.C. Sales-Peres A.C. Sales-Peres J.A. Marsicano C.A. P. Carvalho F.S. Carvalho J.R.P. Lauris A. Sales-Peres
doi: 10.1922/CDH_2527SalesPeres05


Objective: To evaluate the relationship between tooth wear in primary and permanent dentition in 7 to 10-year-old school children, in 2007. Methods: An epidemiological cross-sectional survey was conducted by trained, calibrated examiners, using the dental wear index (DWI). The cluster sample consisted of 764 children (382 boys, 382 girls) attending 4 public schools selected in different regions of the city. The DWI was proposed to evaluate primary and permanent teeth, coded as letters and numbers, respectively. Data were collected via clinical examinations performed outdoors under natural light, following the WHO recommendations and using a dental mirror and probe. Proportions and confidence intervals were used to describe the prevalence of dental wear. The Mann-Whitney and the Odds Ratio (OR) tests were used to compare the tooth wear prevalence between primary and permanent teeth according to surface (p<0.05). Results: The 7 to 10-year-old school children presented 16% tooth wear. The tooth wear was mostly seen on the occlusal/incisal surfaces (47%), involving enamel or enamel-dentine. Tooth wear in primary teeth was found in canines and molars (93%) and in permanent teeth in molars (34%). There was significant difference between primary and permanent teeth (p<0.001) and dental wear in primary teeth was greater in boys than in girls (p=0.02) but not in permanent teeth. Conclusion: The results suggest that 7 to 10-year-old children with tooth wear in primary teeth had more chances of developing tooth wear in permanent dentition. However, the findings of this study are not conclusive as the associations described are not causal. Key words: tooth wear, erosion, abrasion, attrition, children, oral health


Other articles in this issue

Article Pages Access
Editorial - Position papers by EADPH Special Interest Groups 190-190 Download
Tooth wear and erosion: Methodological issues in epidemiological and public health research and the future research agenda 191-195 Download
The relationship between tooth wear in the primary and permanent dentitions 196-200 Download
The efficacy of dentifrices on extrinsic tooth stains among community dwelling adults in India – a randomised controlled trial 201-205 Download
Clinical and socio-demographic factors influencing the oral health-related quality of life of Chinese elders 206-210 Download
The effects of chronic pain on oral health related quality of life in patients with anterior disc displacement with reduction. 211-215 Download
Dental self-care and visiting behaviour in relation to social inequality in caries experience 216-221 Download
Clinical evaluation of chlorhexidine for the control of dental biofilm in children with special needs 222-226 Download
Oral health related quality of life among children with parents and those with no parents 227-231 Download
Psychometric properties of long and short forms of the Child Perceptions Questionnaire (CPQ11-14) in a Thai population 232-237 Download
Dental examiners consistency in applying the ICDAS criteria for a caries prevention community trial 238-242 Download
Investing in professional advocacy: a case study of a successful fluoridation campaign in rural New South Wales, Australia 243-247 Download
Relationship of caries and fluorosis in adolescents from high- and low-fluoride areas in Iran 248-252 Download


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