浅层龋
Methods: 346 molars from 45 adolescents ( with pit-fissure of No. 6 or 7 accessional teeth in the supermaxilla and submaxilla being rather deep and caries being superficial) were treated by means of fissure blockage.
方法:在60例青少年中选择346颗磨牙(上下颌第6、7恒磨牙的窝沟过深,浅龋)进行窝沟封闭。
Results Pit and fissure filling has effectively prevented the further development of caries. In test group no case developed intermediate caries from superficial caries. On the other hand the proportion of the intermediate caries in control group was 32.94%.
结果随访1年发现,实验组无1例发展为中龋,而对照组有28颗(32.94%)发展为中龋。
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