Clinical Observation for prosthesis of small edentulous space by one-stage narrow-neck implant

Objective:A single dental implant prosthesis of small edentulous space by one-stage narrow-neck implant is a secure simple prosthesis.The report discussed the indication operating technique and the clinical effects of the prosthesis.Methods:25 patients(16 femals and 9 males)age range from 20 to 55 years old(mean age:38 years),were planted HBIC one-stage implant,including 32 implants.Implant teeth:9 maxillary canines,12 maxillary lateral incisors,8 submaxilla canines,3 submaxilla anterior teeth.All implants were planted to adopt one-stage and flapess technique by HBIC instrument and demand,torque from 30 to 45 Ncm,after planting,adjust direction and contour of implant,make it conform the demand of preliminary coronal restoration,and no do provisional coronal restoration.Tell patients not to morsus food with the teeth of implantation region and maintain oral hygiene,to attend the clinic on time,three months after healing,implants were restored by permanent porcelain complete veneer crown.Primary stability,GI,peri-implantities.apex radicis dentis X-rays films were analysed to determine the clinical results.Result:After 1-4 year follow-up,2 implants in 1case were lost.The clinical successful rate was 93%.Disscusion:1.The Subgingival location of the implant have great influence on the prosthetic results.If the implant to occupy the location of gingival papilla or buccolingual side bias,Not only the aesthetic result is of poor,but also it is very difficult in maintaining oral hygiene.Previous studies have shown that In order to protect the gingival papilla and prevent bone resorption,a minimum distance of the implant to adjacent teeth at the cervical margin plane should be 1mm.narrow-neck implant can maximize the protection of the gums bridge width between the implant and adjacent teeth,and can be effective in reducing gingival recession and bone resorption occurred.2.One-stage and flapless technique can reduce postoperative bleeding of the soft tissue and injury of the gingival papilla,and can reduce the acute response of the gingival tissue and be benefit for wound healing of soft tissue,and can prevent peri-implantitis.3.Patients in this group are extended loading,that is conducive to the formation of closed soft tissue and good osseointegration.When the coronal was repaired,try to reduse height of cusp,so as to reduce the shear force and lateral force,thereby enhancing the success rate of planting.Conclusions:A single dental implant prosthesis of small edentulous space by one-stage narrow-neck implant,want to come up to excellent,beautiful repaired result,the key is the certainty of indication and good operating technique.