Objective:To study the effects of Hybrid coat protective coat for dentin on desensitization of vital teeth in the full crown restoration. Methods: A total of 84 vital teeth from 50 patients were randomly divided into three groups, 28 vital teeth in each group. One group for applying Hybrid coat after tooth preparation, one group for applying Colgate effective anti-acid toothpaste after tooth preparation, the other group was the control. Take the model after tooth preparation, cement the temporary crown. Week and one month to referral after the restoration, evaluate the extent of dentine hypersensitivity of experimental and control groups. Results: After a week and one month, Hybrid coat group had significant desensitization compared with Colgate group and control group (P<0. 05). Colgate group and control group had no significant difference (P>0. 05). Conclusions: Hybrid coat protective coat for dentin can effectively prevent dentine hypersensitivity after tooth preparation.%目的:研究Hybrid Coat牙本质保护膜对全冠修复中活髓牙的脱敏作用.方法:50例患者84颗活髓牙随机分为3组(牙本质保护膜组、高露洁专效防酸牙膏组和空白对照组),每组28颗.术后1周和1个月复诊,评价牙本质保护膜组和对照组的牙本质敏感程度.结果:术后1周及1个月,牙本质保护膜组有明显的脱敏作用,与高露洁组和空白对照组均有显著差异(P＜0.05),而高露洁组与空白对照组间无显著差异(P＞0.05).结论:Hybrid coat牙本质保护膜能有效防止牙备后的牙本质敏感.
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