Comparison between flapless-guided and conventional surgery for implant placement: a 12-month randomized clinical trial

Author(s)

Nomiyama, Lucas Massaru ; Matumoto, Edson Ken ; Correa, Monica Grazieli ; Cirano, Fabiano Ribeiro ; Ribeiro, Fernanda Vieira ; Pimentel, Suzana Peres ; Casati, Marcio Zaffalon

• Document type: Journal article
• Source: CLINICAL ORAL INVESTIGATIONS; v. N/A, p. 15-pg., 2022-11-19.

Abstract

Objectives The study was aimed at comparing implants installed with guided and conventional surgery. Material and methods Twenty-nine total edentulous patients were selected, and maxillary contralateral quadrants were randomly assigned to static computer-aided implant surgery (S-CAIS): flapless computer-guided surgery, and conventional surgery (CS): flap surgery with conventional planning. Tomography scans were performed at baseline and 10 days after the surgery for deviation measurement, and radiography was done at baseline and after 6 and 12 months, for peri-implant bone level (PIBL) analysis. Peri-implant fluid and subgingival biofilm were collected to evaluate bone markers and periodontal pathogens. Results S-CAIS showed less linear deviation at the apical point and the midpoint and less angular deviation (p < 0.05), with greater depth discrepancy in the positioning of the platform (p < 0.05). Higher values of vertical PIBL were observed for the S-CAIS group at baseline (p < 0.05), while lower values of horizontal PIBL were observed for CS (p < 0.05). Bone markers and Tf presented higher levels in CS (p < 0.05). Flapless S-CAIS allowed smaller linear and angular deviations than the conventional technique. Conclusion However, PIBL was higher in S-CAIS; the conventional technique led to a greater angiogenic and bone remodeling activity by elevating the angiogenic levels and bone markers. Trial registration ReBEC-RBR-8556fzp. (AU)

• FAPESP's process: 18/05376-2 - Guided versus conventional implant surgery: Clinical, radiographic, microbiological, immuno-enzimatic and patient-centered analysis
• Grantee: Márcio Zaffalon Casati
• Support Opportunities: Regular Research Grants