Evaluation of halitosis and sialometry in patients submitted to head and neck radiotherapy

Objectives: The aim of this study was to investigate the parameters of halitosis and sialometry in patients who had undergone head and neck radiotherapy, correlating oral concentration of volatile sulfur compounds (VSC) with the presence of tongue coating, salivary flow rate and BANA test.Material and Methods: 35 patients allocated in two groups were examined: group I (control) - patients with systemic and oral health; group II - patients submitted to head and neck radiotherapy. All volunteers were submitted to halitosis measurements through a sulphide monitor, evaluation of tongue coating weight, non-stimulated sialometry and BANA test.Results: The results were analyzed through analysis of variance, Pearson’s correlation and Student’s t-test, showing that there was statistically significant difference in halimetry between the groups, where the irradiated patients showed halitosis. There was a relation between the presence of tongue coating and the levels of VSCs in both groups and it was also noted that the irradiated patients showed a decreased salivary flow rate compared to healthy patients.Conclusion: On the conditions of the present research, it was concluded that halitosis can be considered an adverseeffect of radiotherapy, connected to hiposalivation and poor oral health (AU)

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Evaluation of oral and nasal odor in patients with and without cleft lip and palate: preliminary report.

OBJECTIVE: To evaluate oral and nasal halitosis parameters in patients with and without clefts. DESIGN: Randomized and prospective study. Patients with and without clefts were evaluated as to oral and nasal halitosis. SETTING: University of São Paulo, Bauru Dental School and Hospital for Rehabilitation of Craniofacial Anomalies, Bauru, Brazil. PATIENTS: Twelve patients with clefts and 12 without clefts were evaluated, and no exclusion criteria were followed. INTERVENTIONS: Nasal and oral halitosis were measured with the use of a portable sulfide monitor during a single visit. RESULTS: One hundred percent of the patients with clefts had altered values for volatile sulfur compounds. Only 33.3% of the patients without clefts had at least one strong value for nasal halimeter measurements, and 58.3% of these patients showed alteration in the nasal values. Statistical evaluation, made using the Mann-Whitney U test, classifying the nasal halimeter values as normal, weak, and strong, showing a statistical significant group difference (p = .003). There was no significant difference in the oral halimeter values between the two groups. CONCLUSIONS: Patients with cleft lip and palate had a tendency to present higher values for the nasal halimeter measurements, when compared with patients without clefts.