Prevalence and Associated Factors of Tooth Wear in Shanghai.
OBJECTIVE
To estimate the prevalence and distribution of tooth wear among groups of adolescents and adults in Shanghai, China through an epidemiological survey, and explore the associated factors.


METHODS
Multistage, stratified, constant volume and cluster sampling methods were used in an epidemiological survey conducted in Shanghai in 2014. The basic erosive wear examination (BEWE) index was used to screen for tooth wear in different age groups: 12 years, 15 years, 18 to 35 years, 36 to 49 years and 50 to 74 years. A previously published questionnaire collected information including dietary habits, oral hygiene habits and general conditions.


RESULTS
This survey reports the results for 1806 participants in Shanghai. The prevalence of tooth wear was 59.7% in adolescents (BEWE ≥ 1) and 93.1% in adults (BEWE ≥ 2). The prevalence and severity of disease increased with age (P < 0.01). The teeth most susceptible to wear were the central incisors and first molars. Multivariate analysis of covariance (ANCOVA) results showed that soft drinks, alcoholic drinks, pickled vegetables and hard food, gastroesophageal reflux disease (GERD), xerostomia and poor tooth brushing habits were statistically correlated with tooth wear in different age groups.


CONCLUSION
The prevalence of tooth wear appears to be high in adolescents and adults in Shanghai. Frequent consumption of soft or alcoholic drinks, GERD, xerostomia and poor tooth brushing habits were positively associated with tooth wear in different age groups.
['Yu|Tian|T|', 'Tao|Dan Ying|DY|', 'Lu|Hai Xia|HX|', 'Zhu|Jia Lin|JL|', 'Xie|Chun Yu|CY|', 'Bartlett|David|D|', 'Feng|Xi Ping|XP|']
D000293:Adolescent D000328:Adult D002648:Child D002681:China D003430:Cross-Sectional Studies D006801:Humans D015995:Prevalence D012307:Risk Factors D014077:Tooth Erosion D057085:Tooth Wear
tooth wear adolescents adults epidemiological survey basic erosive wear examination index