Immediate implant placement in conjunction with a DFDBA graft and resorbable membrane: A 1-10 year retrospective clinical study

Abstract

Context: The use of immediate post-extraction implants presents several advantages in terms of reduction of surgical steps and time required to conclude the therapy. Particularly important is the possibility to minimize the bone loss that otherwise would occur in the physiologic healing of the alveolus. Aim: The purpose of this paper is to evaluate immediate implants placed with DFDBA grafts and resorbable membrane over a 10-year period based on parameters of stability, success rate, esthetics and functional integrity to evaluate predictability of this surgical technique. Settings and Design: Unicenteric, randomized clinical study. Methods and Materials: From Jan 1995 to Jan 2005, 81 immediate extraction implants were placed for 68 patients. 75 Stepped screw Frialit2, Friadent, Gmbh, Mannheim, Germany) implants and 7 Straight, Swiss-Plus self-tapping threaded implants (Zimmer, Centrepulse) were placed. Observation period ranged from minimum 6 months to maximum 10 years. Statistical analysis used: Descriptive statistics, Chi-square test and One-way Anova test were used for assessing survival rates by comparing various variables like bone quality, bone quantity, implant sizes, implant site and problems encountered during and after surgery. Results: The 10-year survival rate was 98.76%. Majority of the implants placed showed diameter and length equal to or more than root size. Conclusions: Immediate implant placement has helped solve issues with regard to bone quantity, quality and esthetics as also treatment time, as opposed to delayed implant placement. Needless to mention is the instant gratification it provides the patient.