This retrospective study evaluated hard and soft tissue response and reported mechanical and technical complications around computer-aided design/ computer-assisted manufactured (CAD/CAM) abutments. A total of 123 patients restored with titanium, gold-hue titanium, and zirconia CAD/CAM abutments were included (N = 291). Each patient was followed up for at least 2 years. Clinical and radiographic parameters were assessed annually and complications were recorded. No implant or reconstruction failures were reported. One fracture of a zirconia abutment occurred. The prosthetic survival rate after 4 years of function for restorations and abutments was 100% and 99.66%, respectively. No significant differences in biologic and radiographic indices were found. The bleeding on probing index was positive at 42% of implant sites, and it had no significant correlation with the overall change in marginal bone level (0.02 mm) of bone gain. The short-term survival of CAD/ CAM abutments was reliable, no matter of the material used for manufacturing.

CAD/CAM implant abutments: Peri-implant hard and soft tissue response with up to 4 years of follow-up-a retrospective cohort study evaluation / A. Parpaiola, M. Toia, M. Norton, D. Cecchinato, E. Bressan, D. Lops. - In: THE INTERNATIONAL JOURNAL OF PERIODONTICS & RESTORATIVE DENTISTRY. - ISSN 0198-7569. - 40:2(2020), pp. 193-201. [10.11607/prd.3597]

CAD/CAM implant abutments: Peri-implant hard and soft tissue response with up to 4 years of follow-up-a retrospective cohort study evaluation

D. Lops
2020

Abstract

This retrospective study evaluated hard and soft tissue response and reported mechanical and technical complications around computer-aided design/ computer-assisted manufactured (CAD/CAM) abutments. A total of 123 patients restored with titanium, gold-hue titanium, and zirconia CAD/CAM abutments were included (N = 291). Each patient was followed up for at least 2 years. Clinical and radiographic parameters were assessed annually and complications were recorded. No implant or reconstruction failures were reported. One fracture of a zirconia abutment occurred. The prosthetic survival rate after 4 years of function for restorations and abutments was 100% and 99.66%, respectively. No significant differences in biologic and radiographic indices were found. The bleeding on probing index was positive at 42% of implant sites, and it had no significant correlation with the overall change in marginal bone level (0.02 mm) of bone gain. The short-term survival of CAD/ CAM abutments was reliable, no matter of the material used for manufacturing.
Computer-Aided Design; Dental Abutments; Follow-Up Studies; Humans; Retrospective Studies; Titanium; Zirconium; Dental Implant-Abutment Design; Dental Implants
Settore MED/28 - Malattie Odontostomatologiche
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2434/859916
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