A Clinical Analysis On The Factors Related To Implant Stability

Objective:In order to ensure the effect of implant restoration,it is of great clinical significance to evaluate the stability of implant before prosthesis.Implant stability quotient(ISQ)of Straumann system was measured 4-5 months after implantation.The effects of implant length,diameter,neck structure,position and bone types on implant stability were analyzed to provide reference basis for clinical work of implant.Method:From April 2018 to December 2019,A total of 75 implants were selected from 70 patients who were treated in the Implant Dentistry Department of Tianjin Medical University Hospital of Stomatology.After 4-5 months of implantation,the values of ISQ were measured and recorded with the resonance frequency analysis Osstell ISQ? systerm.The results were statistically analyzed.Results:1.The stability coefficient of 75 implants after 4-5 months was 60-87,with an average value of 77.76 ± 5.32 and a median value of 79.33.2.There was no statistical difference in the stability coefficient of implants with different diameters and lengths(P > 0.05);the implant stability of class III bone types was lower than that of class I and class II bone types(P < 0.05);the stability coefficient of Straumann bone level implant was higher than that of soft tissue implant(P < 0.05);the ISQ value of implant in the mandibular posterior area was higher than that in the maxillary posterior area(P< 0.05).Conclusions:1.The stability coefficients of 75 implants after 4-5 months of implantation was higher than the critical value 47 of ISQ,which accomplish osseointegration.2.Different length,diameter have no effects on the stability of the implant.3.The design of class I and class II bone types and neck structure at bone level is beneficial to improve the stability of implant.4.75 implants obtained good osseointegration through preoperative evaluation and standardized clinical operation.