关键词: 下颌前牙区, 数字化导板, 即刻修复

Abstract: Objective: To investigate the clinical effectiveness of immediate implantation and immediate restoration with digital workflow in mandibular anterior region. Methods: Seventeen patients with two to four mandibular incisor teeth that could not be retained were selected. Preoperative periodontal therapy was performed, followed by CBCT imaging. The coDiagnostiX software was used to design the three-dimensional position of implants. The surgical guides and provisional restorations were fabricated. A total of 34 implants were implanted, the initial stability of all the implants were ≥35 N·cm, and the ISQ were >65. 61 immediate restorations were performed. Radiographs were taken on the same day to confirm the complete seating of the temporary abutments. Regular follow-ups were conducted to provide oral hygiene instructions. Permanent restorations were performed after 6 months, and after 12 months, the survival rate of implants and restorations, the harmony of gingiva with adjacent teeth, the thickness change of labial bone, and the patient satisfaction degree were evaluated. Results: Within the 12-month observation period, there were no implant failure. All 34 implants achieved good osseointegration during the observation period, with a survival rate of 100% for both the implants and restorations. Among 55 restorations, the labial gingival margin showed good harmony with the adjacent natural teeth, with slight differences observed in 6 restorations. There was no significant difference in gingival color and texture between 56 restorations and the adjacent natural teeth, while 5 restorations showed slight differences. The average patient satisfaction degree with aesthetic visual analog scale (VAS) was 96. Conclusion: Based on strict indications selection, immediate implantation and immediate restoration in the mandibular anterior region can result in stable outcomes.

Key words: mandibular anterior region, digital template, immediate restoration