ĐÁNH GIÁ KẾT QUẢ SÁT KHUẨN LÂM SÀNG CỦA LASER DIODE 810 NM TRONG ĐIỀU TRỊ NỘI NHA RĂNG MỘT CHÂN

Abstract

Background: Endodontic treatment is essentially an antiseptic process. Objectives: To evaluate the antiseptic of the 810 nm diode laser to Endodontic treatment of single-rooted teeth when compared with conventional endodontic treatment. Materials and methods: Design randomized clinical intervention research with a control group, performed on 70 patients with single-rooted teeth with irreversible pulpitis in one tooth with an indication for root canal therapy. Divided into two groups (n=35): Sampled the S1 microbiota in the previous stage of myeloid preparation. With microbiological sample S2: The control group has pumped a total of 20ml NaOCl 3% + 5ml EDTA 17% +5ml physiological saline. Laser group: Irrigating 20ml NaOCl 3%+5ml EDTA 17% +5ml physiological saline + 810 nm diode laser irradiated. The real-time PCR technique was used to identify and quantify bacteria present in the sample. Results: There was a statistically significant lower bacteria in the 810 nm diode laser treatment group compared with the conventional endodontic treatment group with p<0.05. Control group: The average bacterial concentration in the microbiological sample before myeloid tube preparation was: 7.61E+06 DU, after myeloid tube preparation: 5.26E+05 DU, the percentage of bacteria decreased by 93.43%, (p < 0.01; Mann-Whitney U). The laser group 810 nm: The average concentration of bacteria in the microbiological sample before the preparation of the myeloid tube was: 1.12E+07DU, after the preparation of the myeloid tube: 1.06E+05, the rate of microorganisms decreased by 95.58%. Use molecular biology to detect the presence of bacteria in the study samples. Conclusion: The 810 nm diode laser is a successful adjunct to conventional endodontic treatment and has a clinical antiseptic effect.