Evaluation of soft tissue outcomes following keratinized tissue augmentation around dental implants using free gingival graft and xenogenic collagen matrix: A randomized clinical study

Soft tissue augmentation around dental implants is essential for long-term peri-implant health, yet the comparative efficacy of different soft tissue techniques remains unclear. Therefore, it is of interest to evaluate changes in keratinized tissue width (KTW), soft tissue thickness (STT) and peri-implant health parameters at 1, 3 and 6 months post-surgery. Results show that FGG significantly outperforms XCM in enhancing keratinized tissue (KT) and improving clinical outcomes such as probing depth (PD) and bleeding on probing (BOP). Both techniques demonstrate effectiveness, but FGG remains the preferred option for achieving optimal peri-implant tissue health. This study advances knowledge by highlighting the superior effectiveness of FGG in soft tissue management around implants.