Using a bee resin mouthwash for a week doesn't significantly reduce the variety of bacteria in the mouth, suggesting it might be better for maintaining a healthy oral microbiome than antibacterial mouthwash.
Scientific Claim
Propolis mouthwash (2.5%) does not significantly reduce alpha diversity of the oral microbiome in healthy adults after 7 days of use, suggesting it preserves microbial diversity better than chlorhexidine.
Original Statement
“After treatment, a major decrease in α-diversity (Shannon and Simpson indexes, p < 0.005) was observed in the CHX-M group, while α-diversity was less altered in the PROP-M with some decreases in the Simpson index at high taxonomic levels (p < 0.05).”
Evidence Quality Assessment
Claim Status
appropriately stated
Study Design Support
Design supports claim
Appropriate Language Strength
definitive
Can make definitive causal claims
Assessment Explanation
This is a randomized controlled trial with direct measurement of alpha diversity before and after intervention. The p-value of 0.05 for Simpson index at high taxonomic levels indicates statistical significance for the difference between groups, supporting definitive language for this specific finding.
Evidence from Studies
Supporting (1)
The comparative effect of propolis and chlorhexidine mouthwash on oral nitrite-producing bacteria and blood pressure regulation