18May 2023
A prospective case series on the efficacy of a cross‐linked collagen matrix to increase buccal soft tissue thickness at large edentulous gaps: One‐year results

A prospective case series on the efficacy of a cross‐linked collagen matrix to increase buccal soft tissue thickness at large edentulous gaps: One‐year results

The study aimed to evaluate the changes in soft tissue profiles following the use of a cross-linked porcine-derived collagen matrix (CMX) for soft tissue augmentation in large edentulous gaps. A prospective case series was conducted with 15 systemically healthy patients who had a horizontal soft tissue defect of at least two units. Soft tissue augmentation was performed using a 6mm thick CMX during implant placement. The primary outcome measured the change in buccal soft tissue profile (BSP) at different areas of interest (AOI) up to 1 year postoperatively. The results showed a mean increase in BSP at 1 year, but significant graft resorption occurred, leading to recurring soft tissue defects. No complications were observed, and marginal bone loss was limited. The efficacy and clinical relevance of CMX for soft tissue augmentation in large edentulous gaps may be questionable due to the high rate of resorption and recurring defects.

  • #dentistry

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