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PMPR and Chlorhexidine on Periodontal Disease and Vascular Function
Sponsor: Mahdi Mutahar
Summary
* Gum inflammation is called gingivitis. Gum disease, known as periodontal disease, is a long-term inflammation of the gums and bone around teeth, leading to tooth loss. Both gingivitis and periodontal disease are also linked to other health problems, including heart disease. Additionally, salivary proteins play a role in maintaining oral health. For example, a protective layer called the salivary pellicle (SP) forms on teeth after tooth brushing and helps defend against harmful bacteria. * Nitrate-reducing bacteria (NRB) are also present in saliva and play a role in oral and cardiovascular health by converting nitrate to nitric oxide (NO). This compound supports blood vessel health and overall cardiovascular function. Therefore, NRB's abundance is linked to lower blood pressure and improved cardiovascular health. * Standard treatments for gum disease include deep cleaning (also called professional mechanical plaque removal, or PMPR), and sometimes chlorhexidine (CHX) mouthwash is used with PMPR to help reduce mouth bacteria. However, while CHX is effective against plaque (a sticky film of bacteria on the tooth surface), it may reduce the activity of "nitrate-reducing" bacteria (NRB), which are important for producing nitric oxide (NO). * This study investigates the impact of deep cleaning (PMPR) with and without Chlorhexidine mouthwash on salivary and SP proteins, as well as blood vessel function, in people who have gum disease. By examining these links, the investigators aim to gain a deeper understanding of how oral care practices may impact overall health, particularly heart health.
Official title: The Effect of Professional Mechanical Plaque Removal (PMPR) and Chlorhexidine Mouthwash on Salivary and Acquired Enamel Pellicle (AEP) Proteins and Vascular Function and Inflammation in People With Periodontal Disease
Key Details
Gender
All
Age Range
30 Years - 75 Years
Study Type
INTERVENTIONAL
Enrollment
30
Start Date
2026-01-23
Completion Date
2028-07-01
Last Updated
2026-03-25
Healthy Volunteers
No
Conditions
Interventions
Chlorhexidine (0.2%) mouthwash
PMPR is a routine standard dental treatment for gingivitis and PD, and will not form part of the research intervention. The research intervention consists of using 0.2% chlorhexidine mouthwash (10 ml, rinsed for 1 minute, twice daily for 14 days).
Placebo mouthwash
PMPR is a routine standard dental treatment for gingivitis and PD, and will not form part of the research intervention. The research intervention consists of a placebo mouthwash (10 ml, 1 min, twice daily for 14 days). The placebo mouthwash (control) is designed to resemble commercially available products but without the active ingredient. Use of this has been ethically approved (IRAS Project ID: 333173), validated and tested in the investigator's previous studies (Data to be published).
Locations (1)
University of Portsmouth
Portsmouth, Hampshire, United Kingdom