The overall prevalence of periodontitis is high at 40%-55%, depending on case definitions (Eke, Borgnakke, & Genco, 2020; Jordan et al., 2014). It is decreasing in all age groups in industrialized countries, but remains high at about 70% in those over 65 years

PD patients suffer from xerostomia, dysphagia, and drooling. Subjective dysphagia is associated with drooling and xerostomia, but drooling prevalence or intensity does not influence xerostomia symptoms. Tremor, dyskinesia, and disease duration, which characterise PD, affect xerostomia. Additionally, food intake, sleep, age, LEDD, and daytime (peaks at 9 a.m. and 9 p.m.) increase xerostomia occurrence. This knowledge may improve dentists' advice to patients and aid development of patient-centred, symptom-relieving products.

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Investigate whether clinically assessed oral care status by an external dentist can be replicated using smartphone photographs.Background: Many people with care needs have poor oral hygiene. To help maintain oral health, caregivers require a simple way of communicating oral care status to the dental team. Materials and Methods: Cross-sectional study in which smartphone photographs of the oral and prosthetic care situation of N = 50 nursing-home patients (mean age 85.6 [SD 6] years, 74% women) were assessed by two blinded, external examiners (D1/ D2) and compared with clinical assessments made by the onsite dentist who also took the photographs (D0). Intraoral care status was clinically evaluated using the modified Plaque Index for Long-Term Care (PI-LTC) and Denture Hygiene Index (DHI). The intraclass correlation coefficient (ICC) determined correlations between clinical and photographic findings. Results: The ICC was assessed for the PI-LTC (upper jaw, n = 41; lower jaw, n = 49) and DHI (upper jaw, n = 25; lower jaw, n = 18). The DHI showed excellent reliability between clinical assessment and smartphone evaluation for the determination of positive surfaces (ICC: upper 0.91 [95% confidence interval (CI) 0.83-0.96], P < 0.001; lower 0.95 [95% CI 0.89-0.98], P < 0.001). The PI-LTC showed good reliability between clinical assessment (D0) and D1/D2 for determination of vestibular plaque (ICC: upper 0.84 [95% CI 0.74-0.91], P < 0.001; lower 0.87 [95% CI 0.79-0.92], P < 0.001). Conclusions:Although limited, this pilot study demonstrated that standardised smartphone photographs can simply communicate the intraoral care status of patients who have difficulties accessing their dentist. This should be considered when planning improved communication between dentists, care recipients, and their support network.