March 2010

Volume 27, Issue 1

Is tooth wear in the primary dentition predictive of tooth wear in the permanent dentition? Report from a longitudinal study.

Authors: S.M. Williams H.P. Whelton M.A. Harding
doi: 10.1922/CDH_2447Harding05


Objectives: To determine the prevalence of tooth wear in the permanent dentition of a sample of 12-year-old school children and establish whether an association exists between tooth wear recorded now and tooth wear recorded in their primary dentition at age five. Design: A prospective cohort study. Methods: At follow-up to a previous study complete data were available for 123 children; fieldwork was conducted in the childĺs primary school. Measurement of tooth wear used a scoring system modified from the Smith and Knight Tooth Wear Index (TWI). Tooth wear which had progressed to dentine was assessed on the occlusal surfaces of the four first permanent molars, the labial, lingual/palatal and incisal surfaces of the six upper and six lower anterior teeth; a total of 40 scoreable surfaces. Demographic data were collected from the parents, and a questionnaire on oral hygiene habits, diet and behaviours was completed by each child. Results: In total 38% (n=47) of subjects had tooth wear, if incisor teeth only were included, 33% (n=40) had tooth wear and similarly if the occlusal surfaces of molar teeth only were included 10% (n=12) had signs of tooth wear. Gender was significantly associated with tooth wear: males had more tooth wear. The presence of tooth wear with dentine exposed in the primary dentition was significantly associated with tooth wear on the occlusal surfaces of the first permanent molars. Conclusion: Males had more tooth wear than females. An association existed between tooth wear recorded at age 5 and molar tooth wear recorded at age 12. Tooth wear is a lifelong cumulative process and should be recorded in both the primary and permanent dentitions. Keywords: Behaviours, diet, longitudinal study, oral hygiene, tooth wear.

£10 single article

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Editorial -Improving services for cleft lip and palate. A work in progress 2-3 £10 single article
Acknowledgement of Referees 4-4 £10 single article
Preventive care and recall intervals. Targeting of services in child dental care in Norway 5-11 £10 single article
National survey of oral health status of children and adults in Turkey 12-17 £10 single article
The influence of economic incentives on treatment patterns in a third-party funded dental service 18-22 £10 single article
Barriers to restorative care as perceived by dental practitioners in Tanzania 23-28 £10 single article
Social inequality in perceived oral health among Sri Lankan adolescents 29-34 £10 single article
Complications following oral piercing. A study among 201 young adults in Strasbourg, France. 35-40 £10 single article
Is tooth wear in the primary dentition predictive of tooth wear in the permanent dentition? Report from a longitudinal study. 41-45 £10 single article
Are paediatric medicines risk factors for dental caries and dental erosion? 46-51 £10 single article
A study on neonatal factors and eruption time of primary teeth 52-56 £10 single article
Prevalence of aggressive periodontitis in 15-18 year old schoolchildren in Tehran, Iran 57-59 £10 single article
Chewing stick use among African immigrants in West Philadelphia: implications for oral health providers 60-64 £10 single article


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