學齡兒童齲齒與唾液因子之相關研究－以高雄縣某國小為例

A Study on the Caries and the Factors of Saliva in Elementary School Children

林佐丞(Tso-Cheng Lin) ； 黃純德(Shun-Te Huang) ； 駱嘉鴻(Ga-Hung Lo) ； 周怡萱(Yi-Shuan Chou)

《Taiwan Journal of Oral Medicine Sciences》 24卷1期 (2008/04) Pp. 55-66

https://doi.org/10.7059/TJOMS.200804.0055

摘要

Background：Dental caries is a complex disease affecting a lot of people around the world. Several factors may cause dental caries, and some factors may play reciprocal factors to anti-caries. Among them, saliva, the most important physiological factor, contains many protecting factors to anti-caries. There are many different agents within saliva, such as flow rate, buffering capacity, antimicrobial activity, clearance from the oral cavity, and immune function, that protect the tooth surface against caries attack. In order to understand the anti-caries capacities of saliva of school children, we studied salivary flow rate, buffering capacity (salivary pH value), salivary fluoride concentration. Finally we discussed the relationship between these oral physiological factors and DMFT index.
Study Objective：1.To study the distribution of salivary factors
2.To study the relationship between salivary factors
3.To study the relationship between salivary factors and the DMFT index
Methods：The present investigation included 223 6(superscript th) grade children(12-yr-old)attending Kaohsiung elementary school. Their clinical examination for oral health status was surveyed and recorded. Saliva samples such as salivary flow rate(ml/min),salivary pH value and salivary fluoride concentration(ppm)were collected and laboratory tests by (superscript ®)Dentocult saliva check kit and fluoride ion concentration measurement. Statistical analysis was performed using correlation coefficient、paired-t test、ANOVA. The JMP statistical software was used for data management and for the statistical analysis.
Results：In this study, unstimulated salivary flow rate was 0.45±0.30 ml/min, stimulated salivary flow rate was 0.64±0.37ml/min;unstimulated salivary pH value was 7.26±0.40,stimulated salivary pH value was 7.81±0.31;salivary fluoride concentration was 0.0564±0.0718 ppm. DMFT index was 2.73±2.42. The children who had higher DMFT index(＞3)had lower salivary flow rate and salivary pH value.
Conclusion：We found stimulated salivary flow rate was higher than unstimulated salivary flow rate，and stimulated salivary pH value was higher than unstimulated salivary pH value. Children who had higher DMFT index had lower salivary flow rate and salivary pH value. Salivary factors play an important role in anti-caries, and we should employ many preventive measures. Besides oral health education, the change of dietary habits and the use of fluorides, we suggest further study of salivary factors. Better understanding of oral physiological factors will result in better caries prevention.

關鍵字

唾液 ； 口腔微生物 ； DMFT指數

並列摘要

Background：Dental caries is a complex disease affecting a lot of people around the world. Several factors may cause dental caries, and some factors may play reciprocal factors to anti-caries. Among them, saliva, the most important physiological factor, contains many protecting factors to anti-caries. There are many different agents within saliva, such as flow rate, buffering capacity, antimicrobial activity, clearance from the oral cavity, and immune function, that protect the tooth surface against caries attack. In order to understand the anti-caries capacities of saliva of school children, we studied salivary flow rate, buffering capacity (salivary pH value), salivary fluoride concentration. Finally we discussed the relationship between these oral physiological factors and DMFT index.
Study Objective：1.To study the distribution of salivary factors
2.To study the relationship between salivary factors
3.To study the relationship between salivary factors and the DMFT index
Methods：The present investigation included 223 6(superscript th) grade children(12-yr-old)attending Kaohsiung elementary school. Their clinical examination for oral health status was surveyed and recorded. Saliva samples such as salivary flow rate(ml/min),salivary pH value and salivary fluoride concentration(ppm)were collected and laboratory tests by (superscript ®)Dentocult saliva check kit and fluoride ion concentration measurement. Statistical analysis was performed using correlation coefficient、paired-t test、ANOVA. The JMP statistical software was used for data management and for the statistical analysis.
Results：In this study, unstimulated salivary flow rate was 0.45±0.30 ml/min, stimulated salivary flow rate was 0.64±0.37ml/min;unstimulated salivary pH value was 7.26±0.40,stimulated salivary pH value was 7.81±0.31;salivary fluoride concentration was 0.0564±0.0718 ppm. DMFT index was 2.73±2.42. The children who had higher DMFT index(＞3)had lower salivary flow rate and salivary pH value.
Conclusion：We found stimulated salivary flow rate was higher than unstimulated salivary flow rate，and stimulated salivary pH value was higher than unstimulated salivary pH value. Children who had higher DMFT index had lower salivary flow rate and salivary pH value. Salivary factors play an important role in anti-caries, and we should employ many preventive measures. Besides oral health education, the change of dietary habits and the use of fluorides, we suggest further study of salivary factors. Better understanding of oral physiological factors will result in better caries prevention.

並列關鍵字

Saliva ； Oral microflora ； DMFT index