Clinical study of crown shape control effect of horizontal food impaction in implant supported fixed denture in elderly patients
CUI Guang
LIU Yu
ZHENG Jie
GONG Lin
Abstract：Objective:Food impaction is one of the main complications of fixed partial denture restoration, and implant supported fixed partial denture is no exception, especially horizontal food impaction. The current study aim to examine the treatment effects of food impaction by adjusting the interproximal contour of the implant crowns.Method:80 cases of posterior teeth restored with implant crowns were randomly divided into group A(<10.0mm), and group B(≥10.0mm), according to the edentulous space. Each group was then subdivided into two groups, each with 20 cases, that were restored with temporary resin crown of different interproximal contour, replaced by zirconia-ceramic crowns 6 month later. Proximal contact, the occurrence of horizontal food impaction and clinical parameters were recorded at each time point. All results were futher compared and analyzed statistically.Results:In group A, the food impaction rate of the control group and experimental group was 80% and 25%, respectively. In group B, the food impaction rate of the control group and experimental group was 100% and 15%, respectively. The food impaction rates of both experiment groups were statistically lower than that of the control groups (P<0.05).Conclusion:Properly adjusting the implant crown emergence profile and proximal contact is beneficial to prevent horizontal food impaction.
Keywords：horizontal food impactionfixed dentureimplant
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 353-356 )