Case-control study related to the use of L-cysteine in the differential diagnosis of oral halitosis.
J Breath Res
; 16(2)2022 02 02.
Article
in En
| MEDLINE
| ID: mdl-35042209
Oral halitosis is characterized by a foul, unpleasant breath that emanates from the oral cavity due to local or systemic conditions. Approximately 90% of offensive odors are caused by volatile sulfur compounds (VSCs). L-cysteine, used as a test solution to control bad breath, induces the formation of VSCs and serves as a preliminary rinse. The study aim was to investigate the effectiveness of L-cysteine solution in differentiating the origin of oral halitosis using a gas chromatography apparatus. Methods: In total, 37 patients with an average age of 49.56 years were evaluated and divided into two groups: halimetry before the use of L-cysteine (n= 37) and halimetry after the use of L-cysteine (n= 37). Patients over 18 years of age, without severe systemic health impairment or infectious/contagious diseases, and who did not use medicines that influenced their breath were included. Halimetry was performed using the OralCroma™ device. In the halimetry before the use of L-cysteine group, 5.40%, 5.40%, and 64.86% of the patients had high levels of sulfide, methyl mercaptan, and dimethyl sulfide, respectively. After the use of L-cysteine, 48.64%, 8.10%, and 37.84% of the patients had high levels of sulfide, methyl mercaptan, and dimethyl sulfide. In this study, L-cysteine proved to be important for the assessment of oral halitosis and effective in differentiating the origin of oral halitosis; therefore, this compound could be used for the differential diagnosis of oral halitosis origin using the OralChroma™ device.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Cysteine
/
Halitosis
Type of study:
Diagnostic_studies
/
Etiology_studies
/
Observational_studies
Limits:
Adolescent
/
Adult
/
Humans
/
Middle aged
Language:
En
Journal:
J Breath Res
Year:
2022
Document type:
Article
Affiliation country:
Brazil
Country of publication:
United kingdom