![shutterstock_2584741](https://www.nationalelfservice.net/cms/wp-content/uploads/2012/05/shutterstock_2584741-150x150.jpg)
This large multicentre, cluster randomised controlled compared the clinical effectiveness and cost-effectiveness of theory-based, personalised oral hygiene advice or scale and polish’ with routine care in improving periodontal health in dentate adults attending general dental practice.
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