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Published in: Clinical Oral Investigations 7/2022

10-05-2022 | Probiotics | Review

The efficacy of probiotics in the management of intra-oral halitosis: a systematic review

Authors: John Rong Hao Tay, Ethan Ng, Clement Wei Ming Lai, Lum Peng Lim, Marianne Meng Ann Ong

Published in: Clinical Oral Investigations | Issue 7/2022

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Abstract

Objectives

To evaluate the efficacy of probiotics in reducing halitosis of dental origin.

Methods

MEDLINE, EMBASE, and CENTRAL were searched up to and including June 2020. Randomised placebo-controlled, double-blinded clinical trials in systemically healthy adult patients who were given any form of probiotics to manage halitosis of dental origin were included. Primary outcome measures were organoleptic scores and volatile sulphur concentration levels. Secondary outcome measures were microbiologic parameters and quality of life (QOL).

Results

Of the 301 potentially relevant articles, eight articles were selected for the review. The risk of bias assessment showed that two studies were of low risk of bias, four studies had some concerns, and two studies had a high risk of bias. The beneficial effect of probiotics could neither be confirmed in periodontally treated patients administered with up to 8 weeks of probiotics, nor in periodontitis patients who received both non-surgical periodontal therapy and adjunctive probiotics up to 90 days. Microbiological findings 1 month after probiotics administration and QOL measures showed no significant differences compared to control. Considerable heterogeneity was observed among probiotic administration protocols.

Conclusions

The available evidence suggests no convincing benefit for the use of probiotics in the management of halitosis. Standardised protocols on recruitment of halitosis subjects and organoleptic measurements are required for future studies on probiotics as an intervention.

Clinical relevance

The lack of well-conducted studies with a low risk of bias precludes any clinical recommendation. Further research is needed to verify the efficacy of probiotics in the management of intra-oral halitosis.
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Metadata
Title
The efficacy of probiotics in the management of intra-oral halitosis: a systematic review
Authors
John Rong Hao Tay
Ethan Ng
Clement Wei Ming Lai
Lum Peng Lim
Marianne Meng Ann Ong
Publication date
10-05-2022
Publisher
Springer Berlin Heidelberg
Published in
Clinical Oral Investigations / Issue 7/2022
Print ISSN: 1432-6981
Electronic ISSN: 1436-3771
DOI
https://doi.org/10.1007/s00784-022-04522-w

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