The prevalence and risk indicators of tooth wear in 12- and 15-year-old adolescents in Central China

Abstract

BackgroundTooth wear has been investigated in numerous countries, and the prevalence has varied. However, the data on tooth wear in China are scarce. The aim of this study was to describe the prevalence of tooth wear and to investigate the relative indicators associated with tooth wear in 12- and 15-year-old adolescents in Wuhan City, Hubei Province, Central China.MethodsA cross-sectional descriptive study was undertaken among 720 adolescents in Hubei Province, Central China. The age groups in this study were 12- and 15-year-old, and each group consisted of 360 participants in which females and males represented 50 % each. A modified version of the Basic Erosive Wear Examination (BEWE) tooth wear index was used for the buccal, cervical, occlusal/incisal and lingual surfaces of all of the teeth in the 720 adolescents. All of the participants were asked to answer a questionnaire consisting of questions about their current and historical dietary habits and oral hygiene.ResultsThe prevalence of tooth wear was 18.6 and 89.4 % in 12- and 15-year-old adolescents, respectively. The prevalence rates of dentin exposure were 1.9 and 5.6 %, respectively. A significantly higher prevalence of tooth wear and dentin exposure in 15-year-old adolescents was found than in 12-year-old adolescents (p < 0.001 and p = 0.011). Several factors such as drinking soft drinks and fruit juices immediately after sports, taking aspirin, reflux, unilateral chewing, tooth brushing once daily or less often, duration of brushing less than 2 min and swimming in the summer were found to be associated with tooth wear.ConclusionsTooth wear in 12- and 15-year-old adolescents in Central China is a significant problem and should receive greater attention. The prevalence of tooth wear increases with age and associated with socio-behavioral risk factors.

Erosive Tooth Wear and Related Risk Factors in 8- and 14-Year-Old Greek Children

“…Unlike studies showing a positive correlation between caries and erosion [Dugmore and Rock, 2004;Kazoulis et al, 2007], the present study did not reveal such a correlation. Moreover, contrary to two reports connecting swimming in chlorinated pools with erosive tooth wear [Sanhouri et al, 2010;Zhang et al, 2015], no such association was apparent in the present study.…”

“…Preference for lemon-flavored sour candies appeared only in the 14-year-olds, whereas soft drinks influenced both age groups. These findings are in agreement with other studies [Murakami et al, 2011;Hamasha et al, 2014;Alves et al, 2015;Tao et al, 2015;Zhang et al, 2015]. Frequency of fruit juice consumption did not reach statistical significance in any age group, in contrast to other reports [Luo et al, 2005;Zhang et al, 2015].…”

Demineralization&ndash;remineralization dynamics in teeth and bone

“…89 The most recent study in the Peoples' Republic of China showed 89% tooth wear among 15 years old, with 7% showing dentine exposure; a mark of the severity of the erosion. 90 Other studies from Japan and India also showed comparable data for early-stage tooth erosion. 91,92 Modifying behavioral factors that affect dietary consumption include types of drinks consumed, method by which a drink is consumed, and frequency of drinking.…”

“…The two chemical methods by which this can occur are either direct acid attack or chelation. 57,74,90 When hydronium ions are formed from an acid in solution, they bind with carbonate or phosphate in HA, releasing the anions into solution in a form of chemical etching. Carbonate is more reactive than phosphate, and requires a lower concentration of hydronium to react with, and is therefore why HA is weaker with excess carbonate.…”

Timing of dietary acid intake and erosive tooth wear: A case-control study

“…Although few epidemiological studies have investigated the timing of toothbrushing and erosive tooth wear, many have investigated the frequency of brushing. Although there have been studies that have reported increased erosive wear with increased frequency of brushing [23,27], other studies have shown increased risk when brushing was performed less than twice daily [26,[28][29][30][31].This may be due to the protective action of fluoride [32]. Authors have also hypothesised that brushing before a meal may confer a level of protection due to the increased presence of re-mineralising ions [17], which was not observed in this study.…”