The influence of peri-implant keratinized mucosa on brushing discomfort and peri-implant tissue health




The aim of this study was to compare the level of brushing discomfort (BD) during oral hygiene and peri-implant clinical variables between patients presenting implant sites with a band ≥2 mm and <2 keratinized="" mm="" mucosa="" nbsp="" of="" p="">

Materials and Methods

Participating patients were recruited during routine maintenance follow-up visits from January to October 2013. Based on the presence of KM, patients were allocated into two groups: implant sites with ≥2 mm of KM (Wide Group); and implant sites with <2 all="" analog="" and="" around="" arrow="" asked="" aspect="" assessed="" at="" attachment="" bd="" bleeding="" buccal="" clean="" cleaning="" clinical="" clinically="" collected="" data="" depth="" devices="" each="" em="" experimental="" from="" group="" hygiene="" implant.="" implant="" index="" instructions="" km="" level="" mm="" nbsp="" non-paired="" of="" on="" op="" oral="" patients="" plaque="" pocket="" probing="" received="" reported="" s="" scale="" sites.="" sites="" standardized="" student="" subsequently="" the="" three="" to="" using="" visual="" were="">t
-test, Wilcoxon's signed-rank test, and chi-square tests were performed to analyze the outcome variables (< 0.05).


Eighty patients with a total of 270 implant sites were included. Implant sites in the Narrow Group exhibited higher levels of BD (P < 0.001), PI (P = 0.0021), and BoP (P = 0.017) than implant sites in the Wide Group.


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