利用阻生智齿预备钛金属冠改善下颌义齿固位的应用观察

目的:利用阻生智齿增加下颌单颌总义齿固位力。方法:通过手术暴露下颌阻生智齿,在智齿冠上预备牙体,制作钛金属套冠将阻生齿牙冠形态转移至口腔中,从而把固位力不足的下颌单颌总义齿修复,转变成有正常基牙固位的可摘局部义齿修复。结果:通过3例利用埋伏阻生智齿接钛金属套冠,对下颌牙槽嵴严重吸患者的可摘局部义齿修复,经2～3年的临床观察,钛套冠固定良好,无松动,牙龈正常。可摘局部义齿固位良好。结论:利用埋伏阻生智齿接钛金属套冠,加强下颌牙槽嵴严重吸收可摘局部义齿固位力的效果明显。

Applicotion of crowns on ippacted wisdom tooth to improve the retention of lower denture

Objective: To improve retention of complete lower denture with impacted wisdom tooth as abutment.Methods: The impacted wisdom tooth was exposed and for titanium telescopic crown-retained removable partial denture denture was made on the basis of the wisdom tooth.And the unstable mandibular single complete denture was took place by removable partial.Results: 3 cases with severely resorbed mandible received removable partial denture titanium loping on impacted wisdom tooth.After observation for 2-3 years,telescopic dentures of titanium were fixed well with healthy gum.And the removable partial dentures were stable too.Conclusion: Lt is an effeilive method to improve the retention of lower dnture with telescopic crown on impaacted wisdom tooth.