Alveolar Ridge Preservation After Tooth Extraction Using Autologous Dentin Matrix

The study was conducted in accordance with the rules and principles of evidence-based medicine in compliance with the requirements of the Declaration of Helsinki of the World Medical Association 2013 and was approved by the Interuniversity Committee on Ethics (protocol No. 04-18 dated April 19, 2018). The recruitment of patients and their treatment was carried out within the framework of the University Clinic of A. I. Evdokimov Moscow State University of 67 from 2018 to 2020. Study type: randomized clinical intervention prospective longitudinal study. The study included 80 patients in need of extraction of tooth and further dental implantation following proposed inclusion criteria. After selection, complex oral rehabilitation was carried out to restore chewing function. All patients (n=80) were divided into 4 equal groups depending on the used preservative material. A total of 151 teeth were extracted. In the 1st group, the preservation was carried out using the Cerabone xenograft (Botiss, Germany). In the 2nd group, Plasma Rich in Growth Factors (PRGF) was used, obtained from the patient's venous blood 20-30 minutes before the tooth extraction (BTI Endoret, Spain). The third group consisted of patients who underwent preservation of the extracted tooth socket with crushed autologous dentin matrix (ADM) obtained from their own tooth using Smart Dentin Grinder (KometaBio Inc., USA). In the 4th group, a material based on hydroxyapatite "Kollapan-L" with lincomycin (Intermedapatit, Russia) was used as a preservation graft. 4 months after tooth extraction, dental implants were installed according to the standard ITI protocol (Chen S., Buser D., 2007). In the postoperative period, a standard course of antibacterial and anti-inflammatory therapy was carried out.