| Objects:Caries and periodontitis are the most common oral diseases. According to the third national oral epidemic survey results,the prevalence of caries and periodontitis was high in China. In the population aged from 35 to 44,the prevalence of caries was 88.1%; while the periodontal health rate was 14.5%.This situation was more serious among aged people and rural residents.The differences among regions varied. This study was intended to find out the prevalence of caries,periodontitis in a petrochemical industry community in East China; to identify the possible factors of the prevalence; to evaluate the impact of the polluted environment on the oral health of the employees in the petrochemical industry community; and to provide information to the enterprises in oral diseases prevention and treatment. In addition,we discussed the relationship between periodontitis and the traditional risk factors of coronary heart disease (CHD), as well as the role of the mechanisms responsible for high-sensitivity CRP (hsCRP) in this relationship.Methods:A population of 11175 petrochemical industry employees was included. Each subject was examined according to the principles and fundamental methods which were used in the third national oral health epidemical survey. The periodontal statuses of 2108 samples were selected. Fasting blood was collected; total cholesterol (TC), triglyceride (TG),uric cid, blood glucose and other serum indexes were recorded. In addition, we conducted periodontal examinations on a total of 356 subjects; and divided them into three groups (TN=0-2, TN=3, and TN=4) according to their periodontal status. The fasting blood was collected from all individuals; the serum hsCRP concentration and the serological changes used in diagnosing CHD routinely were recorded. Logistic regression analysis was applied by using SPSS 16.0.Results:(1) The prevalence rate in this enterprise was 70.7% (95% CI:70.7%±0.8%),of which male was 67.7%,female was 76.9%; the decayed-missing-filled (DMF) index was 2.88±3.44. The filled rate was 24.3%, of which male was 18.4%, female was 31.4%. The DMF in the group aged 35-44 and aged 65-74 were 0.74±1.39 and 0.66±1.3,respectively. (2) The priodontal health rate was 20.5%;the periodontitis rate was 52.3% (95% CI:52.3%±2.1%);the gingival blood index was 61.5%;the calculus rate was 64.2%; the deep periodontal pocket index was 26.2%;the prevalence rate of attachment loss≥4 mm was 51.0%.(3)The caries rate increased fast in the group aged below 25 and the group aged 25 to 34. The rate of attachment lost in the group aged 65-74 was 76.9%, higher than the average rate 73.6% in East China. (4) It was found that the multivariable logistic regression model results revealed that for all the 2108 selected subjects blood glucose,age and blood pressure were correlated with periodontitis; when the factor of age was excluded,TC, blood glucose, blood pressure and alcohol were correlated with periodontitis in the young and middle-age group. (5) In the groups of TN=0-2, TN=3, and TN=4,the hsCRP levels were 1.10±1.16mg/L,1.86±2.34mg/L, and 2.25±2.75 mg/L, respectively. Compared with Group TN=0-2,the concentrations of hsCRP in Group TN=3 and Group TN=4 were significantly higher (OR=1.24, and 1.31, respectively). More calculus and deep periodontal pockets were found in the group with higher hsCRP level. Conclusion:(1) The prevalence rate of caries and periodontitis of employees in this petrochemical industry were lower; while the periodontal status was better than other places in East China. (2)The group aged 25 to 34 should receive more attention in controlling decayed teeth;while the male individuals aged 35 to 59 would be more likely to lose their periodontal attachment. Oral hygiene education should be emphasized. (3) The levels of blood glucose, TC, blood pressure and alcohol should be considered in periodontitis prevention and treatment. (4) In the petrochemical industry, we did not find the sulfureted hydrogen-based environment had any adverse impact on decayed teeth or periodontitis. (5) The serum hsCRP level is correlated with the severity of periodontal disease. |
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