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Dental Journals | Dentistry Journals | Oral Health | High Impact Articles | Scient Open Access
Journal of Dental and Oral Health


Research Article

An Epidemiological Study of Dental Caries among 11175 Petrochemical Industry Employees in East China

PAN HengBiao, CHEN Hui, GUO HaiXia, JIN Dan and ZHANG Jing

Correspondence Address :

Department of Endodontics and Periodontology, the Affiliated Stomatological Hospital to Medical College
Zhejiang University, Hangzhou, 310006

Received on: February 16, 2016, Accepted on: March 12, 2016, Published on: March 21, 2016

Citation: PAN Heng Biao , CHEN Hui, GUO HaiXia, JIN Dan, ZHANG Jing (2016). An Epidemiological Study of Dental Caries among 11175 Petrochemical Industry Employees in East China

Copyright: 2016 CHEN Hui, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

  • Abstract

Aim: To investigate some special or potential factors or incidence rate of dental caries in employees of Zhenhai Refining & Chemical Company (ZRCC) in Ningbo China. 
Materials and Methods: A total of 11,175 employees were surveyed during October 2010 to September 2011. Each employee took a self-administered questionnaire and underwent a clinical oral examination, during which the standard examination procedures and diagnostic criteria of WHO were employed. Data in the questionnaires included smoking, body mass index (BMI), alcohol drinking and environment factors (i.e. exposure to Hydrogen Sulfide). 
Results: Besides such basic information as that, the prevalence of dental caries in this petrochemical enterprise was 70.7% +/- 0.8%. The decayed, missing, filled teeth (DMFT) index was 3.59 +/- 4.175; the DMFT index in the group aged 35~44 and aged 65~74 were 3.26 +/- 3.65 and 5.38 +/- 6.11 respectively, which was lower than the average level in East China (4.79 +/- 4.14 and 14.96 +/-9.59), and the filled rate was 24.3%, of which the female filled rate in ZRCC was significantly higher (p<0.05), our multiple linear regression analysis extraordinarily showed that DMFT index was correlated with BMI (p<0.015), alcohol drinking (p<0.000) and environment factor (i.e. exposure to Hydrogen Sulfide) (p<0.000). Conclusions: The DMFT index in the groups aged 35~44 and aged 65~74 in employees of ZRCC was lower than average in East China, The BMI smoking favorite and environment factor Hydrogen Sulfide are calling our attention. Further study about economic or social medical factors, chemical or pharmacological mechanisms and effect on dental caries are to be conducted.
Keywords: Dental caries, Epidemiological study, Petrochemical industry employees