柔性牙龈赝复材料的临床应用

Clinical Application of a Kind of Flexible Gingival Epithesis Material

目的 介绍用柔性牙龈赝复材料制作牙龈赝复体的制作过程 ,评价柔性牙龈赝复体的临床应用效果。方法 采用与活动义齿制作过程基本相同的工艺制作柔性牙龈赝复体 ,并对 31例经柔性牙龈赝复的患者进行 8～ 2 0个月的观察 ,复查方式为患者自主评价 (赝复体颜色稳定性、固位情况、赝复后的美观改善情况及配戴时的舒适情况 )和医生检查 (赝复体是否变色、断裂 ,覆盖的牙齿是否出现龋坏 ,覆盖的牙龈是否出现炎症 )两个方面。结果 所有的患者认为牙龈赝复体在改善牙齿美观方面效果显著 ,配戴时的舒适性和固位性均较好 ,但配戴时间超过 10～ 12个月后颜色会逐渐改变。医生证实了患者的评价 ,同时还发现个别患者牙龈赝复体覆盖下的个别牙齿颈部发生龋坏 ,以及个别患者赝复体覆盖下的牙龈出现轻度炎症表现。结论 柔性牙龈赝复材料及技术是一种有效的牙龈萎缩修复方法 ,不需要专门设备 ,制做工艺简单 ;赝复体色彩的长期稳定还有待提高 ,其色彩稳定性与牙齿硬组织、牙龈的相容性及口腔卫生习惯密切相关。

Objective The aim of this paper is to introduce the clinical and laboratory procedures of fabricating silicone gingival epithesis and evaluate the long-term effects of the epithesis. Methods Flexible gingival epithesises were fabricated by the same way of fabricating partial denture, and their effects were evaluated in 31 patients by following up for 8～20 months.Results Patients′ responses to appearance showed that their esthetic appearance had been much improved in all of the patients and the comfort and retention of their epithesises varied from good to excellent in almost all the patients. Discoloration of the epithesises was noticed by the patients within ten months in average. Doctors′ examination confirmed patients′ responses, and caries was detected at the necks of teeth covered by epithesises and slight gingivititis was discovered in the area under the epithesises in two cases.Conclusion Flexible gingival epithesis is a simple and effective method for correcting gingival recession, and the fabrication is simple and don't need special equipment. However, discoloration of the epithesis remains a problem.