Influence of Transmucosal Contour on Peri‐Implant Soft Tissue Dimensions: A Cross‐Sectional Study in Posterior Single‐Tooth Implants
Year: 2026
Type: article
Study design: Observational Study
Abstract: PURPOSE: This study aimed to evaluate how the transmucosal contour of posterior single-tooth implant crowns, fabricated with CAD-CAM abutments, influences peri-implant soft tissue dimensions using the profile angle and crown ratio concepts. MATERIALS AND METHODS: Digital scans of 58 posterior single-tooth implant crowns were analyzed to measure peri-implant soft tissue height, width, crown ratio, and profile angles. Pearson's correlation analysis and independent t tests were performed to assess relationships between morphological parameters and soft tissue dimensions, as well as differences by arch and implant position (p < 0.05). RESULTS: Significant negative correlations were found between both profile angle and crown ratio and the soft tissue height and width, particularly within the 1-2 mm region above the implant platform (r = -0.873 to -0.719, p < 0.05). Buccal tissue width was greater in the maxilla than in the mandible, while soft tissue height showed no arch-dependent differences. Similar patterns were observed on the lingual aspect. CONCLUSION: The profile angle and crown ratio significantly associated with peri-implant soft tissue dimensions in posterior implant restorations. Larger profile angles and crown ratio, especially within the 1-2 mm coronal region, were closely associated with reductions in both soft tissue height and width. These findings demonstrate region-specific associations between crown contour morphology and peri-implant soft tissue dimensions.
DOI: 10.1111/jerd.70106
Authors: Seungwon Back, Jae‐Seung Chang, Se‐Wook Pyo, Sunjai Kim
Language: English
Subfield: Oral Surgery
Field: Dentistry
Domain: Health Sciences
Open Access status: bronze
Award: G3076045482
OpenAlex ID: W7124733698