ArticleJournal of periodontal & implant science2026
Effect of L-shaped, loosely packed versus non-trimmed, compactly packed non-fixed collagenated bone blocks on the stability of augmented sites in chronic peri-implant dehiscence defects: a pre-clinical
Article in Journal of periodontal & implant science, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
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Who cites it
1 citing paper in PubMed.
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Authors and funding
2 authors.
Funding
Abstract
purposeThis pre-clinical study aimed to compare the efficacy of L-shaped, loosely packed soft block bone substitutes (BBS, LP group) with that of non-trimmed, compactly packed soft BBS (CP group), both covered with a non-fixed collagen membrane, on augmentation stability and new bone formation in chronic peri-implant dehiscence defects treated with guided bone regeneration (GBR).
methodsIn 4 mongrel dogs, 4 standardized box-shaped buccal defects were surgically created in each jaw. Following a 4-week period of spontaneous healing, a total of 32 dental implants were placed, with 2 implants inserted into each defect. Each defect was randomly assigned to either the LP or CP group. Statistical comparisons between groups were conducted using the Mann-Whitney
resultsMicro-CT and histomorphometric analyses revealed no significant differences in bone width at any apical level between the LP and CP groups. Both groups exhibited similar increases in bone width, although bone retention in the coronal region remained limited. Additionally, micro-CT tended to slightly overestimate bone width (mean difference, 0.31 mm), but showed a strong correlation with histomorphometric analysis (
conclusionsNeither LP nor CP soft BBS effectively prevented morphological collapse in the coronal region of augmented sites when used without additional membrane fixation. These findings underscore the necessity of enhanced stabilization techniques to improve structural integrity and bone regeneration in GBR procedures.
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