Study
https://pubmed.ncbi.nlm.nih.gov/37208620/
Çolak S, Demïrsoy M. BMC Oral Health. 2023;23(1):304. Published 2023 May 18. doi: 10.1186/s12903-023-02986-0
Original title: Retrospective analysis of dental implants immediately placed in extraction sockets with periapical pathology: immediate implant placement in infected areas.
In this retrospective 18-months follow-up study the authors investigated the survival rates of implants placed immediately after tooth extraction due to chronical periapical lesions. The implants examined were all placed in one-stage approaches either without the need for bone grafts (Group 1), with simultaneous guided bone regeneration (GBR) using maxgraft® granules and collprotect® membrane (Group 2), or in maxillary sinus lifting procedures using maxgraft® granules and collprotect® membrane (Group 3).
BACKGROUND
The aim of this study is to examine the survival rates of immediate implants placed in extraction sockets with chronic pathology
METHODS
69 patients and 124 immediate implants were included in the study. The patients included in the study were examined in 3 groups. Group 1: Patients who underwent tooth extraction with periapical pathology and immediate implant placement (71 implants). Group 2: Patients who underwent tooth extraction with periapical pathology, immediate implant placement and guided bone regeneration (31 implants). Group 3: Patients who underwent tooth extraction with periapical pathology, sinus lift procedure and immediate implant placement (22 implants).
RESULTS
It was observed that 116 (95.55%) of 124 implants were successful and 8 (4.45%) failed. The success rate was 97.2% in Group 1 (2 failures; 1 non-smoker), 93.5% in Group 2 (2 failures; 2 smokers) and 81.8% in Group 3 (4 failures; 4 smokers). A significant correlation was found between the study groups and implant success in terms of the χ2 test (p = 0.037). A significant relationship was found between smoking and success in terms of the χ2 test (p = 0.015).
CONCLUSIONS
High survival rates are observed for immediate implant placement in sockets with periapical pathology. Acceptable and satisfactory implant survival rates are achieved in GBR applications using maxgraft® cancellous allograft and collprotect® barrier membrane combined with immediate implant placement. In case where simultaneous sinus lifting procedures are required, the success rates were observed to be significantly lower. In case of adequate curettage and debridement in sockets with periapical pathology, high implant survival rates are observed. As the complexity of the surgical procedure increases, the treatment protocols may progress in safer ways