Effect of Periodontal Care on Rhematoid Arthritis in Uganda

Study Overview
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Brief Summary
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this will be an RCT. to determine if non-surgical treatment for periodontitis can improve the disease activity score in 28 joints of rheumatoid arthritis in an African setting. Rheumatoid arthritis patients with periodontal disease will be randomised into an immediate intervention arm and a delayed intervention arm and both groups will be followed for two three monthly periods

Detailed Description
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RESEARCH QUESTIONS What is the prevalence of periodontitis among rthematoid arthritis patients attending the Mulago rheumatology clinic? Does non-surgical treatment for periodontitis improve the disease activity score in 28 joints of rheumatoid arthritis in this local setting? Problem statement It has been shown that intervention with nonsurgical treatment of periodontitis improved the periodontal condition of patients with periodontitis and RA, with beneficial effects upon the clinical and laboratory test parameters, disease activity scores in 28 joints (DAS28) and erythrocyte sedimentation rate (ESR). However, all the studies included in the reviews involved small samples sizes and follow-up periods of less than 6 months. And locally to our knowledge there is currently no published information looking at the role of periodontal disease among Ugandans with rheumatoid arthritis. METHODS Objective 1 will be addressed with a cross sectional study design while objective 2 will be a randomized control intervention on a fresh sample of patients from the clinic who will be randomly assigned using computer generated random numbers. Population : To address the objective 1 a total sample size of 146 randomly selected study participants. For objective 2 the target sample size of 304 individuals or 152 individuals per group. Procedures: On arrival to the dental clinic, the selected and previously consented participants will undergo a standardized interview. This will be followed by an oral examination to assess for: registration of plaque, bleeding on probing, probing depth and followed with the calculation of the Periodontal inflamed surface area score and clinical attachment loss, pick crevicular fluid using paper point for follow-up confirmatory polymerase chain reactions (PCR), quantification with quantitative real-time PCR (QPCR) experiments for P. gingivalis. At the end of the examination a peripheral blood sample will be obtained for: erythrocyte sedimentation rate to be factored in the determination of DAS 28 score. The remaining blood sample will be stored in the department of Anatomy for further studies latter pertaining to PD and RA. Objective 2 RCT study Participants will be randomized into an immediate intervention arm and a delayed intervention arm.

Official Title
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RCT: Evaluating the Effect of Oral Care for Periodontitis in Rhematoid Arthritis Patients in Uganda

Conditions
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Rheumatoid Arthritis, Periodontal Diseases

Intervention / Treatment
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* Procedure: Scaling and polishing
* Other: oral hygiene instructions


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Age 18 years or older (of either gender). RA diagnosed at least 2 year before V0. DAS28 score between 3.2 and 5.1 during the month preceding V0. No change in medication, dose, or formulation in RA treatment during the 3 months preceding V0. Available for all study visits over 6 months Presence of at least six natural teeth. Ability to give written informed consent. Having Periodontal Disease Exclusion Criteria: Chronic disorder requiring chronic or intermittent use of antibiotics. Known hypersensitivity to chlorhexidine digluconate. Participation in another intervention study. Known contraindications to both amoxicillin and clindamycin. Known contraindications to dental local anesthetic. Pregnancy or lactation or intent to become pregnant

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 90 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Interventional Model Description: scaling and polishing plus oral hygiene instructions will be provided for the intervention arm while only oral hygiene instruction will be provided for the control arm. At the end of the six month follow up the control arm will also be provided with scaling and polishing.
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: Scaling and polishing plus oral hygiene instruction<br>This arm will contain RA participants with PD who will continue with their treatment for RA and also receive the intervention of scaling and polishing plus oral hygiene instructions | Procedure: Scaling and polishing<br>* An electronic scaler will be used to clean the gums<br>Other: oral hygiene instructions<br>* It will include 15-minute oral session with visual and verbal information on how to use a toothbrush, dental floss, and mouthwash correctly; how to clean bridges and dentures; and how and why to use a plaque disclosing test to perform tooth cleaning<br>|
| Sham Comparator: only oral hygiene instructions<br>This arm will contain rheumatoid arthritis (RA) participants with periodontitis who will continue with their treatment for (RA) and also receive only oral hygiene instructions | Other: oral hygiene instructions<br>* It will include 15-minute oral session with visual and verbal information on how to use a toothbrush, dental floss, and mouthwash correctly; how to clean bridges and dentures; and how and why to use a plaque disclosing test to perform tooth cleaning<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| change in Disease Activity score of 28 joints | ≤ 3.2- inactive, >3.2 but ≤ 5.1 - moderate and > 5.1- very active | Two three monthly follow ups | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| change in clinical attachment loss | less than 2mm - improvement, more than 3 mm - getting worse | Two three monthly follow ups |