Mohammed Al Mousa, Mohammad K. Alam, Kiran K. Ganji, Yousef Khader, Edward Lynch, Andrej M. Kielbassa
Objectives: To assess the development of halitosis in participants wearing new removable complete dentures (RCD).
Method and materials: Seventy-five completely edentulous patients receiving RCD were recruited. Halitosis was assessed by means of FitScan Breath Checker on the day of denture insertion (T0), as well as after 1 month (T1), and after 2 months (T2). Risk factors were studied using a validated questionnaire about oral and denture hygiene, and tongue scoring followed for each participant. A modified plaque scoring technique assessed the percentage of newly formed biofilms accumulated on all surfaces of the RCD.
Results: At T0, 44% of the participants revealed halitosis. This percentage insignificantly increased at T1 (66.7%) and T2 (65.6%), respectively (P > .109). At T1, halitosis was significantly lower among persons who reported tongue brushing compared to refraining participants (14.3% vs 72.6%; P = .002). At T2, halitosis was significantly higher among patients suffering from moderate to heavy tongue coatings compared to those with no or only light coatings (83.3% vs 50.0%; P = .006), those who did wear their dentures during sleeping (77.5% vs 45.8%; P = .010), and those who did not brush their tongues at all (87.5% vs 29.2%; P < .0001). With a 16-fold increased probability (95% CI 10.0 to 23.31; P < .001), the multivariate analysis revealed that non-brushing the tongue was the only variable significantly linked to halitosis at both follow-ups.
Conclusion: Non-brushing of tongues as well as sleeping with dentures seems to be the main causes of halitosis in new RCD wearers.
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