Journal article
Effect of CAD/CAM Abutment Morphology on the Outcomes of Implant Therapy: A Randomized Controlled Trial
Clinical oral implants research, Vol.36(3), pp.374-385
03/2025
DOI: 10.1111/clr.14389
PMCID: PMC11891029
PMID: 39641983
Appears in UI Libraries Support Open Access
Abstract
Variations in transmucosal abutment contour design may affect the outcomes of implant therapy. This randomized controlled trial was primarily aimed at testing the effect that CAD/CAM zirconia abutments with either a concave or linear divergent transmucosal morphology have on peri-implant mucosal dynamics and indicators of peri-implant health at 1 year after final implant-supported prosthesis insertion in the anterior maxilla.
Following computer-guided implant placement and osseointegration, eligible subjects were randomized into either the experimental (concave morphology) or the control (linear divergent morphology) group. A comprehensive set of outcomes of interest related to peri-implant soft tissue dynamics, phenotypical features, and indicators of peri-implant health were assessed at different time points over a 1-year period after insertion of the final restoration.
Out of 60 initially recruited subjects, a total of 54 completed the study (n = 29 in the experimental group concave/n = 25 in the control group). Overall implant survival and restoration rates between master impression and 12 months were 100% and 98.2%, respectively. Although a trend for coronal migration of the buccal mucosa zenith, gain in mucosal thickness, and increased probing depth and bleeding on probing was observed in both groups, these changes were clinically negligible, and no substantial differences were observed between study groups regardless of variations in transmucosal abutment morphology.
The use of either linear divergent or concave custom CAD/CAM zirconia abutments in a screw-retained, delayed loading approach yielded no significant differences.
Details
- Title: Subtitle
- Effect of CAD/CAM Abutment Morphology on the Outcomes of Implant Therapy: A Randomized Controlled Trial
- Creators
- Christopher A BarwaczMadeline SwensonEmilio Couso-QueirugaCarissa ComnickXian Jin XieGustavo Avila-Ortiz
- Resource Type
- Journal article
- Publication Details
- Clinical oral implants research, Vol.36(3), pp.374-385
- DOI
- 10.1111/clr.14389
- PMID
- 39641983
- PMCID
- PMC11891029
- NLM abbreviation
- Clin Oral Implants Res
- ISSN
- 0905-7161
- eISSN
- 1600-0501
- Publisher
- Wiley
- Grant note
- Dentsply Sirona
- Language
- English
- Electronic publication date
- 12/06/2024
- Date published
- 03/2025
- Academic Unit
- Biostatistics; Family Dentistry; Dental Research; Periodontics
- Record Identifier
- 9984757069002771
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