Current evidence is supportive of recommending probiotics for the management of halitosis .
Based on this review , transient ( average of 2 weeks ) dosing with probiotics ( mainly Lactobacillus strains ) has a moderate effect on halitosis regarding OLT scores , but we could not confirm the effects of probiotics on the VSC reduction .
Although several studies have evaluated the inhibitory effect of  probiotics  on  halitosis  , findings are inconsistent .
This systematic review and meta- analysis of r and omized clinical trials ( RCT ) was conducted to summarize the evidence on the effect of  probiotics on halitosis .
Comparison of ninhydrin method of detecting amine compounds with other methods of halitosis detection.
OBJECTIVES Halitosis is a result of overactivity of Gram-negative bacteria for which protein amino acids are the major source of energy . Therefore , statistical correlation between concentrations of volatile sulphur compounds ( VSCs ) and low-molecular-weight amines should be expected . MATERIAL S AND METHODS Eighty-four patients suffering from halitosis and 40 healthy volunteers aged 20 - 62 years ( average 39.7 ) participated in the study . In all subjects low-molecular-weight amines were evaluated by the ninhydrin method .  Patients with halitosis were r and omized into treatment groups . Zinc tablets , tablets and mouthwash containing chlorhexidine or lyophilized lactic acid-forming bacteria were used . RESULTS Analysis showed that the level of amines was highest in subjects with halitosis ( 0.39 , s.d . + /- 0.06 , P < 0.001 ) and correlated significantly with results of VSC measurement and organoleptic scores ( P < 0.001 ) . Reduction of amine levels after treatment was statistically significant ( P < 0.001 ) . Three months following treatment the amine levels began to increase ( 0.37 , s.d . + /- 0.05 ) . The amine levels in healthy controls were lower ( 0.29 , s.d . + /- 0.07 ) and remained at a stable level . CONCLUSION The salivary amine levels significantly correlated with VSC levels and organoleptic scores . Therefore , the ninhydrin method of detecting salivary amines may be an alternative or additional method of diagnosing halitosis . This method may also be used to evaluate treatment efficacy
Current evidence is supportive of recommending probiotics for the management of halitosis .
Based on this review , transient ( average of 2 weeks ) dosing with probiotics ( mainly Lactobacillus strains ) has a moderate effect on halitosis regarding OLT scores , but we could not confirm the effects of probiotics on the VSC reduction .
Although several studies have evaluated the inhibitory effect of  probiotics  on  halitosis  , findings are inconsistent .
This systematic review and meta- analysis of r and omized clinical trials ( RCT ) was conducted to summarize the evidence on the effect of  probiotics on halitosis .