The Significance of Keratinized Mucosa on Implant Health: An Umbrella Review

Peri-implantitis is one of the challenges during implant treatments. This study helps improve implant treatments and reduce the risk of peri-implantitis. This study aims to provide the most recent insights into the therapeutic effectiveness of keratinized mucosa for dental implants that support prostheses. An electronic search was conducted across various databases, adhering to language restrictions and following PRISMA guidelines until August 2024. The PICO study question was: "For functioning dental implants, how effective is keratinized mucosa in enhancing peri-implant soft tissue conditions?" The eligibility requirements included all systematic reviews and meta-analyses that examined the impact of keratinized mucosa on the health of implants. Two qualified researchers evaluated the criteria independently while assessing the risk of bias associated with the selected articles. A third investigator is available to resolve any ambiguities that may arise during this process. A total of 10 research studies were found that investigated the impacts of keratinized mucosa on implant health. Involving 7139 participants, the findings indicated that a reduced width of keratinized tissue (KT) was linked to a higher incidence of increased plaque accumulation, soft tissue inflammation, and mucosal recession. The width of KT was notably linked to a reduction in inflammation around the implant. The presence of keratinized mucosa around dental implants correlates with improved peri-implant tissue health and a reduced risk of peri-implantitis. Nonetheless, further data are required.