ĐÁNH GIÁ KẾT QUẢ MÔ MỀM, XƯƠNG SAU KHI THỰC HIỆN CẮM IMPLANT VÙNG RĂNG SAU HÀM DƯỚI TRÊN BỆNH NHÂN CÓ SỬ DỤNG HỆ THỐNG MÁNG HƯỚNG DẪN PHẪU THUẬT IN 3D

Abstract

Background: The implant is supported by a 3D printed surgical guide that helps to position the implant correctly to ensure the long-term success as well as the aesthetic result of the final dental restoration. Objective: to evaluate the results of soft tissue bone after implantation in the posterior teeth on patients using 3D printed surgical guide trough system immediately after implantation and 3 months after implantation. Materials and methods: All implants were surgically performed at the Department of Odonto-Stomatology - Can Tho University of Medicine and Pharmacy Hospital from March 2021 to June 2022. Research facilities - Galileos CBCT scanner of Sirona, Germany, the disc stores the patient's CBCT images as DICOM data. Trios 3 scanning system to convert jaw sample data into digital data with STL (standard template library) data format.- Blue Sky Plan software is used to design guide trough for dental implant surgery. Results: Regarding the bone density at the implant site, we recorded the majority of bone density at D3 with 18 positions, accounting for 56.3%; followed by D2 with 13 positions accounting for 40.6% and D4 with 01 position accounting for 3.1%. The average thickness of gum tissue in the implant area was 2.22 ± 0.68 mm with a median of 2.5 (1.5 - 3.0); There were no differences in terms of gender or location. After 3 months of surgery, the keratinized mucosa on the outer surface of the implanted tooth had an average value of 2.23 ± 0.70 mm with a median of 2.5 (1.5 - 3.0). The degree of bone loss in the group with thick and wide horny gums was statistically significant less than the other group (p<0.05). Conclusion: The proximal alveolar crest had an average focal length of 0.18 mm and the distal alveolar crest had an average of 0.21 mm after 3 months. The group with the thickness and width of the keratinized mucosa < 2 mm had a higher degree of bone loss around the implant than the other group. The 3D printed surgical guidance system has been significant in preserving and guiding soft tissue, shortening the treatment time.