Rock W P, Sabieha A M
University of Birmingham, School of Dentistry.
Br Dent J. 1997 Sep 13;183(5):165-70. doi: 10.1038/sj.bdj.4809456.
To examine a possible relationship between reported toothbrushing habits in infancy and fluorosis of permanent maxillary incisors at age 8-9 years.
Comparison of clinical findings with retrospective survey data.
Five primary schools in the City of Birmingham where the water is fluoridated at 1.0 mg F/l.
Results of clinical examinations were compared with historical data collected via parental questionnaires. Maxillary central incisors of 325 consecutive children were examined for fluorosis clinically and photographically according to the criteria of the Modified Thylstrup and Fejerskov Index. 112 children had fluorosis and 213 did not. Information concerning toothbrushing habits in infancy was obtained via a questionnaire to parents who were also asked to add paste to a brush in a similar way to when the children were small. From a combination of questionnaire replies and paste weights the amount of fluoride that each child may have ingested from toothpaste each day was then estimated.
Highly significant associations were found between estimated fluoride ingestion from toothpaste and fluorosis. The mean DMF score of the fluorosis group was half that of the fluorosis-free children. The prevalence of fluorosis among children in ACORN group A-C was significantly greater than in groups D-F.
The results of the study suggest that toothpaste swallowing may be a factor in the production of fluorosis.
研究婴儿期报告的刷牙习惯与8 - 9岁时恒上颌切牙氟斑牙之间可能存在的关系。
临床检查结果与回顾性调查数据的比较。
伯明翰市的五所小学，当地水氟含量为1.0毫克氟/升。
将临床检查结果与通过家长问卷收集的历史数据进行比较。根据改良的蒂尔斯楚普和费耶斯科夫指数标准，对连续325名儿童的上颌中切牙进行临床和摄影氟斑牙检查。112名儿童有氟斑牙，213名儿童没有。通过向家长发放问卷获取婴儿期刷牙习惯的信息，同时要求家长以孩子小时候类似的方式在牙刷上挤牙膏。结合问卷回复和牙膏重量，估算每个孩子每天可能从牙膏中摄入的氟含量。
发现牙膏氟摄入量与氟斑牙之间存在高度显著的关联。氟斑牙组的平均龋失补牙面数得分是无氟斑牙儿童的一半。ACORN A - C组儿童的氟斑牙患病率显著高于D - F组。
研究结果表明，吞咽牙膏可能是导致氟斑牙的一个因素。
