Soft Tissue Healing Around Immediate Implants with Standard Versus Customized Healing Abutment. One-year Outcomes of an Ongoing Randomized Clinical Trial
Author | : Alfonso Caiazzo |
Publisher | : |
Total Pages | : |
Release | : 2017 |
ISBN-10 | : OCLC:1163829773 |
ISBN-13 | : |
Rating | : 4/5 (73 Downloads) |
Book excerpt: Abstract Objectives: Following tooth extraction, soft and hard tissue alterations occur. This randomized clinical trial aimed at evaluating the soft and hard tissues changes in the esthetic region around immediate implants placed in fresh extraction sockets that received u2013 during the first 4 months of healing - a customized (test) or a standard (control) healing abutment without restoration.Materials and Methods: Patients, who required a single tooth extraction and who received an immediate implant with an alloplastic graft (in situ hardening biphasic calcium phosphate), were randomly assigned to two groups: test group (n=18) that received a customized healing abutment or control group (n=18) that received a standard healing abutment. Clinical and intraoral radiographic examinations were taken immediately after implant placement (baseline) and at 4 and 12 months after implant placement, to assess the peri-implant tissues changes. Results:41 patients were preliminary enrolled, after tooth extractions 5 out of 41 extraction sockets sites were evaluated as not suitable for an immediate implant placement and were excluded from the study. In total 36 patients were randomized in the 2 experimental groups. There were 17 females and 19 males (ranging in age from 23.4 to 77.9), with a mean age of 58 years at the time of implant placement. In total, 28 (77.7%) patients reported to be non-smokers and 8 patients (32,3%) reported to be light smokers (less than 10 cigarettes/day). The two study groups were not balanced for confounding factors, even though at baseline no significant differences were observed between the two groups. No prosthetic or implant failure were registered during the study period with a 100% of survival rate. The test group presented better value of Pink Esthetic Score (PES) at distal papilla sites at 12 months when compared to the control group (p = 0.0002). The mesial and distal Papilla Index (PI) in the customized group were significantly higher than in the standard group at 3 and 12 months (p 0.0002). Regarding the bone tissue, the marginal bone loss at mesial sites was significantly higher in the control group than in the test group (p 0.0014).Conclusion: The use of customized healing abutment demonstrated the most favorable results regarding soft and hard tissue in case of immediate implant in addition to peri-implant bone grafting.