Related Experiment Video
Updated: Feb 1, 2026

Oral Bacterial Infection and Shedding in Drosophila melanogaster
Published on: May 31, 2018
Oral probiotics influence oral and respiratory tract infections in pediatric population: a randomized double-blinded
V Campanella1, J Syed, L Santacroce
1Department of Clinical and Translational Medicine "Tor Vergata" University of Rome, Rome, Italy. prof.inchingolo@libero.it.
Insights
Oral probiotics significantly reduced oral and respiratory tract infections (RTIs) in children. This study highlights the beneficial effects of probiotics for preventing common infections without adverse effects.
Area of Science:
- Pediatric infectious diseases
- Microbiology
- Immunology
Background:
- Acute oral and respiratory tract infections (RTIs) are a major global health concern, contributing significantly to morbidity and mortality.
- Pediatric populations are particularly susceptible to these infections, necessitating effective preventative strategies.
Purpose of the Study:
- To evaluate the clinical efficacy of oral probiotics in preventing and reducing the incidence of acute oral and respiratory tract infections in pediatric patients.
- To assess the impact of oral probiotic supplementation on key salivary parameters in children.
Main Methods:
- A randomized, double-blinded, placebo-controlled clinical trial was conducted.
- Forty pediatric subjects with a history of RTIs were randomized into two groups: one receiving probiotics (n=20) and a control group receiving placebo (n=20).
- Salivary examinations were performed before and during the study period.
Main Results:
- The probiotic group exhibited a statistically significant reduction in the incidence of oral and respiratory tract infections compared to the placebo group.
- While salivary flow, viscosity, and buffering capacity remained similar between groups, the probiotic group showed a trend towards more alkaline salivary pH.
- No adverse effects were reported in the probiotic group.
Conclusions:
- Oral probiotic supplementation demonstrated a clear benefit in preventing and reducing the occurrence of oral and respiratory tract infections in children.
- Probiotics offer a safe and effective alternative for managing pediatric RTIs, potentially by modulating the oral microbiome.
- Further research into the specific mechanisms underlying probiotic efficacy in pediatric RTIs is warranted.
Objective:
Acute oral and respiratory tract infections (RTIs) are highly present in the general population, and they represent one of the most impacting causes of morbidity and mortality every year. The aim of our study was to assess the clinical impact of oral probiotics on acute oral and respiratory tract infections affecting paediatric patients.
Patients And Methods:
This is a randomized, double-blinded placebo-controlled clinical study, where probiotics have been compared with placebo in a double-blinded investigation. 40 subjects with a recent clinical history reporting oral and respiratory tract infections were randomly selected and assigned to control (n=20) or the probiotics (n=20) group. During the 3 months before the starting, all subjects were assessed with several salivary examinations.
Results:
We found significant differences in the incidence of oral and respiratory tract infections between control and probiotic group, with a marked reduction of oral and respiratory tract infections episodes in the probiotic group. Salivary examinations gave similar results in both the groups, however, despite the salivary flow, viscosity and buffering were similar, on the contrary, pH values were found to be more alkaline in patients of probiotic group.
Conclusions:
This study showed the main positive effects related to a supplementation with probiotics in order to prevent or reduce the incidence of infections onset in oral and respiratory tracts without any drugs-related adverse effects.
More Related Videos
12:12Transformation of Probiotic Yeast and Their Recovery from Gastrointestinal Immune Tissues Following Oral Gavage in Mice
Published on: February 8, 2016
04:28Utilizing an Orally Dissolving Strip for Pharmacological and Toxicological Studies: A Simple and Humane Alternative to Oral Gavage for Animals
Published on: March 23, 2016
Related Concept Videos
The Placebo Effect
Blind Procedures
Oral Cavity
Teeth: The teeth are the hardest structures in our bodies. Humans have two sets of teeth throughout their lifetime: deciduous (baby) teeth and permanent teeth. Each tooth consists of several parts: the crown (visible part), the root (embedded in the jaw), enamel (hard outer...
Anatomy of Respiratory System II: Lower Respiratory Tract
The Larynx
It is located between the pharynx and the trachea, acts as a passageway for air, and hosts several critical structures, such as the epiglottis, vocal cords, and glottis. The epiglottis acts as a gateway, guiding food to the...
Oral Hypoglycemic Agents: Glinides
Psychosexual Stages of Personality: Oral
Weaning, typically occurring...