evidencegaps
Primary study · included by 1 review

Oral hygiene, periodontal health and chronic obstructive pulmonary disease exacerbations.

Liu 2012 · Liu Zhiqiang, Zhang Wei, Zhang Jing, et al. · Journal of clinical periodontology · 2012

Included by

Linking lungs and gums: a meta-analysis of periodontitis prevalence and severity in chronic obstructive pulmonary disease.
Non-Cochrane · aetiology · 2026 · cited as Liu 2012 · Table 2; References 22-62

The review does not say which of its outcomes this study informs.

1 including review in total.