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The Effect of Non-surgical Periodontal Treatment in the Renal Function of Patients With Chronic Kidney Disease: RCT

The Effect of Non-surgical Periodontal Treatment in the Renal Function of Patients With Chronic Kidney Disease: A Randomized Clinical Trial

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01217281
Enrollment
60
Registered
2010-10-08
Start date
2012-01-30
Completion date
2022-06-18
Last updated
2025-07-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Chronic Kidney Disease, Periodontitis

Keywords

CKD, Renal, Chronic Kidney Disease, Periodontitis, Perio

Brief summary

Periodontal disease is a bacterially-induced inflammation. As such, it can become a point of entry of bacteria, toxins and cytokines into the systemic blood circulation, thus adversely affecting the function of kidneys. This is turn can aggravate the condition of patients with CKD. The study hypothesis is that periodontal therapy can improve renal function in patients with CKD and lower the blood levels of markers for systemic inflammation.

Interventions

PROCEDUREFull Mouth Non-Surgical Periodontal Therapy

Non-surgical Periodontal Therapy provided in two sessions, one for the right half and one for the left half of the dentition. Treatment sessions are provided within one week. No antibiotics or other adjunctive medications are to be used

Sponsors

University of Athens
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

* Chronic Kidney Disease (Stage II, III, IV) * At least 12 teeth present in the oral cavity * Moderate to severe chronic periodontitis, which is defined as: at least 8 surfaces with periodontal pocket depth (PPD) ≥5mm and at least 4 surfaces with Clinical Attachment Loss (CAL) ≥4mm, distributed in at least two quadrants.

Exclusion criteria

* Patients that have had a renal transplant or undergoing dialysis * Acute infections or use of antibiotics in the past 3 months. * Auto-immune diseases, conditions that cause immunosuppression or use of immunosuppressant medication. * Systemic conditions that require antibiotic prophylaxis for routine periodontal therapy. * Non-surgical periodontal therapy in the past 6 months or surgical periodontal therapy in the past 12 months. * Use of medication that can cause gingival hyperplasia such as cyclosporine or fenintoin. * Myocardial infarction or cerebral vascular incident in the past 12 months or uncontrolled angina.

Design outcomes

Primary

MeasureTime frameDescription
eGFR6 monthsEstimated Glomerular Filtration Rate

Secondary

MeasureTime frameDescription
PWV6 monthsPass Wave Velocity, Assessment of Endothelial Dysfunction
CRP6 monthsC-Reactive Protein level
d-8-iso prostaglandin F2a6 monthsd-8-iso prostaglandin F2a
Level of IgG antibodies in serum against periodontal pathogens6 monthsSerum samples will be screened for the presence of IgG antibodies against the below mentioned periodontal pathogens, using the checkerboard immunoblotting method: Porphyromonas gingivalis, Prevotella intermedia, Prevotella nigrescens, Bacteroides forsythus, Treponema denticola, Fusobacterium nucleatum, Actinobacillus actinomycetemcomitans, Campylobacter rectus, Eikenella corrodens, Peptostreptococcus micros, Veillonella parvula, Capnocytophaga ochracea, Streptococcus intermedius, Streptococcus sanguis και Streptococcus oralis.per
Composition of dental plaque6 monthsSamples of subgingival plaque will be assessed using DNA probes according to the checkerboard DNA- DNA hybridization method. DNA probes will be used against the following bacteria: Porphyromonas gingivalis, Prevotella intermedia, Prevotella nigrescens, Bacteroides forsythus, Treponema denticola, Fusobacterium nucleatum, Actinobacillus actinomycetemcomitans, Campylobacter rectus, Eikenella corrodens, Peptostreptococcus micros, Veillonella parvula, Capnocytophaga ochracea, Streptococcus intermedius, Streptococcus sanguis and Streptococcus oralis
HbA1C6 monthsGlycosylated Hemoglobin
FMD / NMD6 monthsFlow Mediated Dialation, Nitroglycerin Mediated Dialation, Assessment of Endothelial Dysfunction
AIx6 monthsAugmentaion Index
Cholesterol levels6 monthsChloesterol Levels
P6 monthsSerum Phosphate
Triglycerides6 monthsSerum triglycerides
LDL / HDL6 monthsLow / High Density Lipoprotein
Serum Urea6 monthsSerum Urea
Serum Albumin6 monthsSerum Albumin
Urine Albumin6 monthsUrine Albumin
Urine Creatinine6 monthsUrine Creatinine
Cr/Alb ratio6 monthsUrine Creatinine / Albumin Ration
Ca6 monthsSerum Calcium

Other

MeasureTime frameDescription
Periodontal Indices (PPD, CAL, BOP, GI)6 monthsAssessment of the periodontal status

Countries

Greece

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026