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The evaluation of olfactory function in individuals with chronic halitosis
Aytug Altundag1, Melih Cayonu2, Gurkan Kayabasoglu3
1Department of Otorhinolaryngology, Istanbul Surgery Hospital, Ferah Sok. No. 22, Nisantası, 34365 Istanbul, Turkey, aaltundagkbb@gmail.com.
Chemical Senses
|November 26, 2014
Summary
Chronic halitosis may impair olfactory function, leading to reduced odor detection in individuals. This study found lower odor thresholds and more frequent hyposmia in halitosis patients, suggesting volatile sulfur compounds negatively impact smell.
Area of Science:
- Otorhinolaryngology
- Olfactometry
- Oral Medicine
Background:
- Halitosis and olfactory dysfunction significantly impact quality of life.
- The relationship between halitosis and olfactory function requires further investigation.
Purpose of the Study:
- To evaluate the olfactory abilities of individuals with chronic halitosis.
- To determine if volatile sulfur compounds (VSCs) associated with halitosis affect olfactory function.
Main Methods:
- Assessed 77 subjects (18-65 years), including 43 with halitosis and 34 controls.
- Measured VSCs using gas chromatography.
- Evaluated orthonasal and retronasal olfactory functions using "Sniffin' Sticks" and other tests.
Main Results:
- Participants with halitosis exhibited lower odor threshold scores compared to controls.
- Hyposmia (reduced sense of smell) was more prevalent in the halitosis group.
- A negative correlation was observed between odor thresholds and VSC levels, especially hydrogen sulfide and dimethyl sulfide.
Conclusions:
- Chronic exposure to VSCs in halitosis may impair olfactory function.
- Halitosis could be a contributing factor to olfactory dysfunction.
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