氟化物拮抗软饮料对乳牙釉质侵蚀作用的研究

山东大学学报(医学版) ›› 2009, Vol. 47 ›› Issue (9): 101-104.

氟化物拮抗软饮料对乳牙釉质侵蚀作用的研究

彭凤梅¹，张韶君¹，王晓丽^2

1. 山东大学附属千佛山医院口腔科，济南 250014； 2. 上海市第一人民医院口腔科，上海 200080

收稿日期:2009-05-08 发布日期:2009-09-16
作者简介:彭凤梅(1965- )，女，副主任医师，硕士，主要从事儿童牙病防治的工作。

Studies concerning the effect of fluoride on resistance to erosion of
soft drinks on enamel of primary teeth

PENG Fengmei¹,　ZHANG Shaojun^1,　WANG Xiaoli²

1. Department of Dentistry, Qianfoshan Hospital Affiliated to Shando ng University, Jinan 250014, China；2. Department of Dentistry, Shanghai First People′s Hospital, Shanghai 200080, China

Received:2009-05-08 Published:2009-09-16

摘要/Abstract

摘要：

目的观察氟化物应用于乳牙釉质表面后保护牙釉质抵抗软饮料腐蚀的能力。方法采用拔除的滞留乳前牙，分为对照组(n=30)、饮料浸泡组(n=34)、NaF溶液组(n=30)、氟保护漆组(n=30)和双氟脱敏剂组(n=30)，经软饮料间断性浸泡后，应用显微硬度仪、X射线荧光光谱分析仪及扫描电镜，观测乳牙釉质表面显微硬度(surface microhardness, SMH)、Ca2+含量及表面形态的变化。结果软饮料浸泡可致乳牙釉质SMH、Ca2+含量明显降低；用NaF溶液、氟保护漆和双氟脱敏剂处理后的釉质SMH、Ca2+含量降低的程度低于饮料浸泡组(P<0.001)；氟保护漆和双氟脱敏剂的作用无统计学差异(P>0.05)，但优于NaF溶液(0.01＜P＜0.05)；扫描电镜下可见釉质表面有不同程度的溶解。结论软饮料对乳牙釉质表面有较强的酸蚀脱矿作用；釉质表面应用氟化物可增强乳牙釉质抵抗软饮料腐蚀的能力。

关键词: 软饮料, 表面显微硬度, Ca2+含量, 氟化物

Abstract:

To study the effect of fluoride against erosion of soft drinks on enamel surface of primary teeth. Methods154 pieces of enamel were selected from retained human primary teeth and randomly divided into 5groups. After respectively being treated with 0.1%NaF solution, fluoride protector and Bifluorid 12 for 7days, they were immersed at intervals in some beverage for 15 min each time, 5 times per day, for 7days. The SMH and calcium content of all enamel specimens were measured before and after experiments. The data of each enamel slab were analyzed by a repeated measure analysis of variance and Dunn T test. Morphological changes of enamel surface were observed by SEM (scanning electron microscope). ResultsThe SMH and calcium content of enamel slabs obviously decreased after exposure to the beverage. Differences between those treated and nontreated with fluoride was statistically significant(P<0.001). The Bifluorid 12 and fluoride protector showed a more significant effect than NaF(P<0.05). The loss of gloss, irregular loss of dental tissues and solubilization of enamel primes in variable degrees among experimental groups were found by SEM. After the enamel was treated with fluoride, erosive lesions were less severe. ConclusionSoft drinks have significant erosive effects on enamel of primary teeth. The treatment of enamel with topical fluoride can enhance the resistance of enamel to erosion of soft drinks. This study recommends that Bifluorid 12 and fluoride protector are more efficacious fluorides.

Key words: Soft drink; Surface microhardness; Calcium content; Fluorides

中图分类号:

R781.2

. 氟化物拮抗软饮料对乳牙釉质侵蚀作用的研究[J]. 山东大学学报(医学版), 2009, 47(9): 101-104.

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