Abstract
BackgroundLong-term data concerning the impact of missing keratinized mucosa (KM) on periimplant tissue health are rare. The importance of KM for implant success remains unclear.MethodsTwo hundred eleven patients with 967 dental implants were analyzed up to 15 years after implant placement. Implants were divided into two groups: no keratinized mucosa (NKM) and KM. Evaluated parameters were plaque index (mAPI), bleeding index (mSBI), bleeding on probing (BOP), probing depth (PD), width of KM, and radiographic vertical bone level.ResultsmAPI, mSBI, and BOP were significantly higher for the NKM group. Implants of both groups showed no significant difference in PD and vertical bone level. Of the implants in the posterior regions (n = 261), 40.3% (regions 37 to 34, 44 to 47, 27 to 24, 17 to 14) showed NKM, whereas 30.4% of the implants in the anterior regions (regions 13 to 23; regions 33 to 43) presented NKM (n = 97).ConclusionsResults indicate that the presence of KM has a positive effect on periimplant tissue health, but does not seem to have an influence on the periimplant bone level.
Highlights
Long-term data concerning the impact of missing keratinized mucosa (KM) on periimplant tissue health are rare
Statistical analysis Implants were divided into two groups: no keratinized mucosa (NKM) = 0 mm of keratinized mucosa and Assessment of plaque accumulation
Two hundred eleven patients (97 = male, 114 = female) with 967 dental implants were available for follow-up examination
Summary
Long-term data concerning the impact of missing keratinized mucosa (KM) on periimplant tissue health are rare. The importance of KM for implant success remains unclear. Various factors influence the long-term success of dental implants are bone quality and quantity, oral hygiene, medical conditions, mechanical factors such as the surgical procedure, and the subsequent prosthetic treatment [1,2,3,4,5,6]. The importance of keratinized mucosa (KM) surrounding the implant as a barrier against microorganisms and subgingival plaque as a factor for long-term success is discussed [7,8]. KM includes the gingival margin and the mucogingival junction [9]. A width of ≥2 mm of masticatory mucosa with ≥1 mm of attached gingiva has been proposed as adequate for gingival health [10]. The mucosa adjacent to the implant has been described to consist a marginal
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
