Plain English Summary
Background and study aims
Rheumatoid arthritis is a long-term (chronic) disease where the body’s immune system attacks the cells that line the joints by mistake, making them swollen, stiff and painful, and over time damaging the joint, cartilage and nearby bone. Periodontitis is a very common condition where the gums become swollen, sore or infected, leading to bleeding, loss of the tissue supporting the teeth, and tooth loss. Some studies have suggested a possible link between rheumatoid arthritis and periodontitis. The aim of this study is to assess the effectiveness of periodontal treatment at reducing rheumatoid arthritis symptoms, in patients suffering from both periodontitis and rheumatoid arthritis.
Who can participate?
Patients aged 18 or over with both rheumatoid arthritis and periodontitis
What does the study involve?
Participants’ periodontitis and rheumatoid arthritis symptoms are assessed at the first visit and they are randomly allocated to one of two groups to receive either immediate or delayed periodontal treatment. Periodontal treatment includes scaling to remove plaque and tartar from the teeth, root planing to clean under the gums and get rid of bacteria from the roots of the teeth, antibiotics, oral hygiene instructions and antiseptic mouthwash. Both groups attend a visit to strengthen their use of hygiene techniques 45 days later, and after another 45 days their periodontitis and rheumatoid arthritis symptoms are reviewed .
What are the possible benefits and risks of participating?
Participants may benefit from improved gum health and improved general health (reduction in rheumatoid arthritis symptoms, improved quality of life). The expected risks are those of periodontal treatment: sensitivity, gum recession, side effects of taking antibiotics, and dysgeusia (distortion of the sense of taste).
Where is the study run from?
Toulouse University Hospital - Purpan and Bordeaux University Hospital - Pellegrin (France)
When is the study starting and how long is it expected to run for?
December 2011 to June 2013
Who is funding the study?
University Hospital of Toulouse - Hospital Clinical Research Programme (France)
Who is the main contact?
Dr Jean-Noël Vergnes
Dr Jean-Noel Vergnes
Faculty of Dental Surgery
CHU de Toulouse
3 Chemin des Maraîchers
Efficacy of therapeutic management of periodontitis on the clinical manifestations of rheumatoid arthritis: a randomized controlled trial
1. To assess the effectiveness of periodontal treatment to reduce the severity of rheumatoid arthritis (RA), in patients suffering from both periodontitis and rheumatoid arthritis
2. Periodontal treatment reduce the severity of rheumatoid arthritis
1. Committee for Protection of Research Subjects (Comité de Protection des Personnes [CPP]), Sud-Ouest Outre-Mer I, 11/07/2011
2. Sanitary Safety in Health Products Agency (Agence française de sécurité sanitaire des produits de santé [AFSSAPS]), 04/11/2010, ref: 2010-A00533-36
Randomized controlled clinical trial
Primary study design
Secondary study design
Randomised controlled trial
Patient information sheet
Not available in web format, please use the contact details below to request a patient information sheet
Rheumatoid arthritis and periodontitis
A rheumatologist will assess periodontal and RA parameters at the first visit (V1), then the participants will be randomly assigned to one of two groups to receive immediate or delayed periodontal treatment.
Periodontal treatment will include non-surgical scaling and root planing, systemic antibiotherapy, oral health instructions and antiseptic prescription.
For the immediate treatment group, a dentist will perform periodontal treatment (V2) and will strengthen the implementation of hygiene techniques 45 days later (V3).
The delayed treatment group will receive periodontal treatment at V4, strengthening of hygiene measures 45 days later (V5), and rheumatological and periodontal reassessment after 45 days (V6). Thus, periodontal care will be equivalent in the 2 groups.
Periodontal and rheumatological features will be reviewed 45 days after V3 (at V4) for both groups. Variation between V1 and V4 will be compared between the two groups.
Primary outcome measure
Difference between 3-month and baseline DAS 28 scores
Secondary outcome measures
Difference between 3-month and baseline values of the following:
1. American College of Rheumatology (ACR) scores
2. Health Assessment Questionnaire (HAQ) scores
3. General Oral Health Assessment Index (GOHAI) scores
4. Periodontal Inflamed Surface Area (PISA)
Overall trial start date
Overall trial end date
Reason abandoned (if study stopped)
Participant inclusion criteria
1. Male or female, aged 18 years or older
2. Rheumatoid arthritis diagnosed since at least one year
3. Disease Activity Score (DAS 28) score between 3.2 and 5.1
4. No change to medication, dosage or formulation in RA treatment during the 3 months before the inclusion visit
5. At least six natural teeth with root
6. Subject with periodontitis, defined by the presence of one site with periodontal probing depth ≥ 4 mm and clinical attachment level ≥ 3 mm on at least 4 teeth
7. Subject able to understand and willing to provide written informed consent in French
8. Subject affiliated to the security system
Target number of participants
Participant exclusion criteria
1. Acute oral infection, acute oral pain (including pulpitis), suspicious oral mucosal lesion, severe oral inflammation unrelated to periodontal conditions, or need for immediate tooth extractions
2. Planned hospitalization within 4 months after the screening visit
3. One or more known infectious diseases [Human immunodeficiency virus(HIV), hepatitis, infectious mononucleosis]
4. Known clinically significant renal disease (creatinine clearance <60 ml/min), or liver disease
5. Unbalanced diabetes
6. Known risk of endocarditis
7. Have a permanent pacemaker
8. Antithrombotic treatment
9. Severe difficulties in understanding written and spoken French
10. Pregnant, lactating, or plans to become pregnant during the study
11. Chronic disorder that requires chronic or intermittent use of antibiotics
12. Hypersensitivity to chlorhexidine gluconate
13. Participation in another study with an investigational compound
14. Contraindications to both amoxicillin and clindamycin
15. Contraindications to dental local anesthetic
Recruitment start date
Recruitment end date
Countries of recruitment
Trial participating centre
University Hospital of Toulouse (CHU de Toulouse)
University Hospital of Toulouse - Hospital Clinical Research Programme [CHU Toulouse - Programme Hospitalier de Recherche Clinique] (France) ref: 1004608
Funding Body Type
Funding Body Subtype
Results and Publications
Publication and dissemination plan
Not provided at time of registration
Intention to publish date
Participant level data
Not provided at time of registration
Basic results (scientific)
2013 protocol in: http://www.ncbi.nlm.nih.gov/pubmed/23945051
Monsarrat P, Vergnes JN, Cantagrel A, Algans N, Cousty S, Kémoun P, Bertrand C, Arrivé E, Bou C, Sédarat C, Schaeverbeke T, Nabet C, Sixou M, Effect of periodontal treatment on the clinical parameters of patients with rheumatoid arthritis: study protocol of the randomized, controlled ESPERA trial., Trials, 2013, 14, 253, doi: 10.1186/1745-6215-14-253.