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. 2017 Jan 27:3:16012.
doi: 10.1038/bdjopen.2016.12. eCollection 2017.

Tooth wear: a cross-sectional investigation of the prevalence and risk factors in Beijing, China

Kan Sun  1 , Wenhui Wang  1 , Xiaozhe Wang  1 , Xiangru Shi  1 , Yan Si  1 , Shuguo Zheng  1
Affiliations

Tooth wear: a cross-sectional investigation of the prevalence and risk factors in Beijing, China

Kan Sun et al. BDJ Open. .

Abstract

Objectives: The aim of this study was to evaluate the epidemiology of tooth wear in Beijing and to establish appropriate preventive measures.

Materials and methods: This cross-sectional analysis involved a questionnaire survey conducted for 1,812 individuals aged 12-74 years in Beijing. Subjects were local residents living in the region for >6 months before the survey. Subjects were evaluated using clinical examinations with the basic erosive wear examination index and a self-administered questionnaire. Statistical analyses were performed using SPSS software.

Results: The prevalence of maxillary tooth wear was 84.9% for the molars, 68.9% for the premolars, 74.1% for the canines and 97% for the incisors. In the mandible, the corresponding prevalence rates were 85.2%, 59.3%, 78.6% and 97.4%, respectively. The occlusal, incisal and cervical surfaces showed more frequent wear compared with the other surfaces. Age, acidic beverages, xerostomia and brushing habits were identified as risk factors for tooth wear (P<0.05).

Conclusions: Tooth wear is common in Beijing. Specific preventive measures should be recommended for individuals reporting excessive consumption of fruits and/or acidic beverages, and those with xerostomia. In particular, incisor wear should be carefully monitored in individuals of all age groups.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Prevalence of a BEWE score of 2–3 in the eight tooth groups.
Figure 2
Figure 2
Prevalence of a BEWE score of 2–3 for the different tooth surfaces.
Figure 3
Figure 3
The average of BEWE score for different groups of teeth.
Figure 4
Figure 4
The average of wear scope and wear depth in different surfaces.
Figure 5
Figure 5
Prevalance of a BEWE score of 2–3 for the maxillary and mandibular teeth in each age group.
See this image and copyright information in PMC

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