Untersuchung zur Auswirkung eines Mund-Nasen-Schutzes auf die Mundgesundheit
Study on the effect of mouth and nose protection on oral health
by Lea-Sophie Rammert
Date of Examination:2025-04-17
Date of issue:2025-03-06
Advisor:Prof. Dr. Dr. Philipp Kanzow
Referee:Prof. Dr. Dr. Philipp Kauffmann
Referee:Prof. Dr. Thomas Meyer
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Abstract
English
Abstract The aim of this single-center, randomized, exploratory and controlled cross-over observational study was to investigate the influence of cloth, medical and FFP2 masks on saliva parameters and the occurrence of halitosis using objectively measurable parameters and to compare the results with the control “without mask”. On four test days, healthy volunteers (n = 39, 31.8 ± 13.7 years) released unstimulated and stimulated saliva in the morning and after wearing a cloth, medical or FFP2 mask for four hours or four hours without a mask. The concentration of volatile sulphur compounds was also measured at the same time using a Halimeter®. Various parameters (saliva flow rate, pH value, buffer capacity) of the stimulated and unstimulated saliva were then determined. Statistical analysis was performed using a single-factor ANOVA with repeated measures (p<0.05). The different mask types (cloth, medical, FFP2 mask) and the control without mask represented the within-subject factors. No significant effects were observed when wearing the different masks in terms of saliva flow rate, pH value and buffer capacity of stimulated and unstimulated saliva and VSC concentration after a four-hour wearing period. With regard to the VSC concentrations, a trend towards increased halitosis values was observed, although this was not statistically significant. This study therefore found no significant influence on the saliva parameters examined and the concentrations of volatile sulphur compounds by wearing different MNS.
Keywords: dry mouth; face masks; halitosis; saliva; volatile sulfur compounds