Mohanraj Madhumitha, Prabhu Rathna, Thomas Eapen, Kumar Senthil
Department of Pediatric and Preventive Dentistry, RVS Dental College and Hospital, Coimbatore, Tamil Nadu, India, Phone: +91 9894400305, e-mail:
Kanchi Kamakoti Child Trust Hospital, Chennai, Tamil Nadu, India.
J Contemp Dent Pract. 2019 Jul 1;20(7):812-817.
The purpose of this study is to clinically evaluate and compare the retention and evidence of caries of three fissure sealants.
A total of 150 children, between 7 and 13 years of age, with fully erupted permanent molars, had sealants placed using a full-mouth design. Sealant retention was evaluated at 1, 3, 6, 9, and 12 months later. Teeth were evaluated for retention and evidence of caries using Simonsen's criteria and results were subjected to statistical analysis using the Chi-square test.
At 1-year examination, in teeth sealed with Clinpro: (a) 8% were completely retained, (b) 74.4% were partially lost, and (c) 8.5% were completely lost; with Embrace Wetbond: (a) none of the sealants were completely retained, (b) 13.1% were partially lost, and (c) 59.1% were completely lost; with Champ: (a) 1% were completely retained, (b) 71.4% were partially lost, and (c) 10.9% were completely lost. All the three sealants showed evidence of caries from 9 months.
The retention of hydrophobic (Clinpro) sealant was superior to hydrophilic (Embrace Wetbond and Champ) sealants. The evidence of caries was less in the hydrophobic sealant group when compared with the hydrophilic sealant groups. There was no statistical difference in retention and evidence of caries between maxillary and mandibular teeth for all the three sealant groups.
Sealants prevent the occurrence of caries in the majority of children. Though hydrophobic sealants appear to be more successful, hydrophilic sealants too may provide promising results in the near future.
本研究旨在对三种窝沟封闭剂的保留情况及龋齿情况进行临床评估和比较。
选取150名7至13岁恒牙完全萌出的儿童，采用全口设计进行窝沟封闭剂的应用。在1、3、6、9和12个月后评估封闭剂的保留情况。使用西蒙森标准对牙齿的保留情况和龋齿情况进行评估，并采用卡方检验对结果进行统计分析。
在1年检查时，使用Clinpro封闭的牙齿中：（a）8%完全保留，（b）74.4%部分脱落，（c）8.5%完全脱落；使用Embrace Wetbond封闭的牙齿中：（a）无封闭剂完全保留，（b）13.1%部分脱落，（c）59.1%完全脱落；使用Champ封闭的牙齿中：（a）1%完全保留，（b）71.4%部分脱落，（c）10.9%完全脱落。从9个月起，所有三种封闭剂都出现了龋齿迹象。
疏水性（Clinpro）封闭剂的保留情况优于亲水性（Embrace Wetbond和Champ）封闭剂。与亲水性封闭剂组相比，疏水性封闭剂组的龋齿迹象更少。对于所有三种封闭剂组，上颌牙和下颌牙在保留情况和龋齿迹象方面没有统计学差异。
封闭剂可预防大多数儿童龋齿的发生。尽管疏水性封闭剂似乎更成功，但亲水性封闭剂在不久的将来也可能产生良好的效果。
