Waurick M, Senkel H
Stomatol DDR. 1978 Mar;28(3):170-3.
The oral hygiene behavior of Erfurt school children was investigated by interviewing and substantiated by means of the OHI. Though 91% of the children had pretended to clean their teeth daily, the OHI values testified to unsatisfactory dental and oral hygiene.
通过访谈对爱尔福特学童的口腔卫生行为进行了调查，并借助口腔卫生指数（OHI）加以证实。尽管91%的儿童自称每天都刷牙，但口腔卫生指数值表明其牙齿和口腔卫生状况并不理想。
