Intra-oral distribution of dental fluorosis in Newburgh and Kingston, New York.
Intra-oral distribution of dental fluorosis in Newburgh and Kingston, New York.
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纽约州纽堡和金斯顿氟斑牙的口腔内分布。
DOI：
10.1177/00220345000790071301
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发表时间：
2000
影响因子：
7.6
通讯作者：
Green,E
中科院分区：
文献类型：
--
作者：
Kumar,J;Swango,P;Haley,V;Green,E
先前对低氟化物地区氟斑牙口腔内分布的研究报告称，与早期形成的牙齿相比，较晚形成的牙齿更容易受到影响。血浆氟化物随着年龄的增长而稳定增加，即使在持续的氟化物暴露下，也被认为是这种临床表现的可能机制。为了确定迪恩指数的口腔内分布以及氟暴露对早期和晚期形成牙齿的影响，我们分析了2193名7 - 14岁的氟化或非氟化地区终身居民的数据。使用Logistic回归程序来确定氟化、早期刷牙、每日补充和其他社会人口变量对早期和晚期形成牙齿的影响。结果表明，氟化区上前牙极轻度及以上氟中毒发生率为7 ~ 10%，未氟化区为5 ~ 9%。氟化区氟中毒的发生由前牙向后牙增加。早期和晚期形成的牙齿都受到氟化、每日使用氟化物补充剂或两岁前刷牙的影响。这一分析表明，暴露于多种来源的氟化物对审美的影响不那么显著，正如上前牙比后牙出现氟化物的频率低所证明的那样。后牙成熟过程较长，牙釉质较厚，可能是后牙氟斑牙发生率较高的原因。
Previous studies of intra-oral distribution of dental fluorosis in low-fluoride areas reported that teeth that formed later in life were more frequently affected compared with the early-forming teeth. The steady increase of plasma fluoride with age, even under constant fluoride exposure, has been suggested as a possible mechanism for this clinical manifestation. To determine the intra-oral distribution of Dean's Index scores and the effect of fluoride exposure on early- and late-forming teeth, we analyzed data collected on 2193 seven-to 14-year-old lifelong residents of fluoridated or non-fluoridated areas. Logistic regression procedures were used to determine the effects of fluoridation, early brushing, daily supplements, and other socio-demographic variables on early-and late-forming teeth. The results show that the occurrence of very mild or greater levels of fluorosis in the upper anterior teeth was 7 to 10% in the fluoridated area and 5 to 9% in the nonfluoridated area. In the fluoridated area, the occurrence of fluorosis increased from anterior to posterior teeth. Both early- and late-forming teeth were affected by exposure to fluoridation, daily fluoride supplement use, or brushing before the age of two years. This analysis showed that the esthetic consequence of exposure to multiple sources of fluoride was less dramatic, as evidenced by the lower frequency in upper anterior teeth compared with posterior teeth. The longer maturation process of the posterior teeth and the thicker enamel appear to be the likely explanation for the higher occurrence of dental fluorosis in posterior teeth.