Clinical assessment of food impaction after implant restoration: a retrospective analysis

Abstract In the current study the incidence of food impaction between implant-supported fixed dental prostheses and adjacent teeth was determined and the factors that influence food impaction were identified. Seven hundred seventy-nine implant prosthetic crowns and 879 adjacent sites from a pool of 489 patients were retrospectively studied. Food impaction existed in 16.6% of patients with implant restorations at the follow-up evaluations. Food impaction occurred more frequently on the mesial aspect of the implant prosthesis and the molar area. Among the factors that affected food impaction, proximal contact loss was shown to be the major cause (78.6%), while the incidence of food impaction on the mesial and distal aspects was 58.0% and 20.6%, respectively. Based on single-factor analysis of variance, gender, implant location, mesial and distal aspects of the prosthesis, and lost time before implant restoration were the factors that influenced proximal contact loss in patients (P

摘要 本研究旨在明确种植支持式固定义齿与邻牙之间的食物嵌塞发生率，并明确影响食物嵌塞的相关因素。本研究回顾性分析了489例患者的779颗种植义齿冠及879个邻接位点。随访评估结果显示，接受种植修复的患者中，16.6%存在食物嵌塞情况。食物嵌塞更常发生于种植义齿的近中面及磨牙区域。在影响食物嵌塞的各类因素中，邻面接触丧失被证实为主要诱因（占比78.6%）；其中，发生于种植义齿近中面与远中面的食物嵌塞占比分别为58.0%与20.6%。基于单因素方差分析，患者性别、种植体位置、义齿近远中面以及种植修复前的失牙时间均为影响患者邻面接触丧失的相关因素（P