Summary: In a randomised trial in older patients with type 2 diabetes, a structured periodontal health intervention improved oral hygiene indices and periodontal knowledge, attitudes, and behaviour, but did not significantly change oral-health-related quality of life.
PICO Summary
| Element | Detail |
|---|---|
| Population | 108 older patients with type 2 diabetes; endocrine department of a tertiary hospital, China. |
| Intervention | Periodontal health intervention based on the Pender Health Promotion Model (individualised assessment, training, education, behavioural support) plus routine care, over 12 weeks. |
| Comparison | Routine diabetes and periodontal-knowledge education alone. |
| Outcome | Significant improvement in Plaque Index, Oral Hygiene Index-Simplified, and periodontal knowledge, attitude, and behaviour (all p<0.05). No significant difference in oral-health-related quality of life (GOHAI). |
Expert Commentary
This is a solid nursing-led behavioural trial whose result should be reported with the precision the earlier summary lacked. The intervention clearly worked on the proximal targets, measurable oral hygiene improved and patients’ periodontal knowledge, attitudes, and behaviours all increased, which is exactly what a structured, education-based programme should achieve. But, contrary to the previous framing, it did not significantly improve oral-health-related quality of life: the GOHAI scores did not differ between groups. That gap is worth dwelling on, because better hygiene indices over twelve weeks may simply not be enough time, or enough change, to shift how patients subjectively experience their oral health. The study is also single-centre and short. Can I use this with my patients? Yes, in a focused way. It supports the value of actively educating older diabetic patients about gum care and reinforcing oral-hygiene behaviours, which sit within the broader, well-established diabetes-periodontitis link, while I stay honest that improving the indices is not the same as improving how patients feel about their mouths, and that longer follow-up would be needed to show quality-of-life gains.
References
Xiao C, Zhang L, Li Z, et al. Periodontal health intervention for oral health-related outcomes in older type 2 diabetes patients: a randomized controlled trial in a Chinese tertiary hospital. Sci Rep. 2025;15(1):28014. doi:10.1038/s41598-025-13434-0