精细印模技术用于可摘局部义齿修复的临床评价

Clinical evaluation of the fine impression technique for removable partial dentures

目的对应用精细印模技术的游离端缺失可摘局部义齿的临床修复效果进行评价,以期为临床提供参考。方法选择2017年4月—2018年1月期间在南京大学医学院附属口腔医院,南京市口腔医院修复科就诊的42位游离端牙列缺损患者,采用精细印模技术制取终印模,共制作52件铸造支架可摘局部义齿。采用口内检查和患者评价的方式,在义齿戴用当天、1周、3个月和6个月时对义齿戴用效果进行随访。结果 42位患者,52件义齿初戴时支架就位顺利,固位好,稳定性好。在1周、3个月和6个月的复查中,共出现4件压痛,4件固位力减弱,1件基牙折断,未出现牙周损伤,患者满意度较高。结论精细印模技术用于游离端缺失可摘局部义齿修复的临床效果良好。

Objective To provide a clinical reference by evaluating the restorative results of an accurate impression technique for distal-extension removable partial dentures.Methods Forty-two patients with free-end dentition defects who visited the Prosthodontic Department of Nanjing Stomatological Hospital,Medical School of Nanjing University,between April 2017 and January 2018 were selected.The final impression was made by an accurate impression technique to fabricate fifty-two removable partial dentures with casting frameworks.The restorative result was judged by clinical examination and patient feedback immediately after wearing dentures and at 1 week,3 months and 6 months.Results All fifty-two dentures for forty-two patients were seated successfully,with good retention and stability.Complications occurred throughout the 6-month follow-up,including 4 cases of mucous pain,4 cases of retention force attenuation and 1 case of abutment fracture.There were no periodontics problems.The dentures garnered high patient satisfaction.Conclusion The accurate impression technique for distal-extension removable partial dentures showed good clinical results in this follow-up investigation.