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- Title
Soft‐tissue dimensional change following guided bone regeneration on peri‐implant defects using soft‐type block or particulate bone substitutes: 1‐year outcomes of a randomized controlled clinical trial.
- Authors
Song, Young Woo; Bienz, Stefan P.; Benic, Goran I.; Cha, Jae‐Kook; Hämmerle, Christoph H. F.; Jung, Ui‐Won; Jung, Ronald E.
- Abstract
Aim: To compare the peri‐implant soft‐tissue dimensional changes following guided bone regeneration between particulate (particle group) and collagenated soft‐block‐type (block group) biphasic calcium phosphate (BCP). Materials and Methods: This study investigated 35 subjects: 18 in the particle group and 17 in the block group. Cone‐beam computed tomography obtained at 6 months post surgery and optical impressions taken periodically (before surgery, 6 months post surgery, and 1 year post surgery) were superimposed. The ridge contour changes over time and the peri‐implant mucosal thicknesses were measured diagonally and horizontally, and analysed statistically. Results: The increases in diagonal (1.12 ± 0.78 mm) and horizontal (2.79 ± 1.90 mm) ridge contour of the block group were significantly higher than those in the particle group during the first 6 months (p <.05); however, the contour hardly changed thereafter (diagonal: 0.07 ± 0.75 mm; horizontal: −0.34 ± 1.26 mm), resulting in the 1‐year contour changes similar between the two groups. Regardless of the type of BCP, the ridge contour increased significantly over 1 year when the dehiscence defect had a contained configuration (p <.05). Conclusions: The increase in soft‐tissue dimensions for 1 year was similar between the two groups. The mucosal contour increase was larger when the surgery was conducted in a more contained defect, and this was not influenced by the type of BCP.
- Subjects
DENTAL implants; PARTICULATE matter; BONE substitutes; HEALTH outcome assessment; RANDOMIZED controlled trials; PRE-tests &; post-tests; COMPARATIVE studies; TREATMENT effectiveness; RESEARCH funding; POSTOPERATIVE period; ORAL mucosa; BONE regeneration; CALCIUM; STATISTICAL sampling; COMPUTED tomography; PHOSPHATES
- Publication
Journal of Clinical Periodontology, 2023, Vol 50, Issue 2, p147
- ISSN
0303-6979
- Publication type
Article
- DOI
10.1111/jcpe.13738