The effect of treatment for gum disease (periodontitis) on the type and amount of lipids (fats) in the blood and the function of the endothelium, the thin membrane that lines the heart and blood vessels, in patients with type 2 diabetes

ISRCTN ISRCTN69139365
DOI https://doi.org/10.1186/ISRCTN69139365
ClinicalTrials.gov (NCT) Nil known
Clinical Trials Information System (CTIS) Nil known
Protocol serial number Nil known
Sponsor Albanian University
Funder Investigator-initiated and funded
Submission date
18/07/2022
Registration date
23/07/2022
Last edited
16/01/2023
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Oral Health
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English summary of protocol

Background and study aims
The aim of this study is to investigate whether treating gum disease (generalized periodontitis) in patients diagnosed with type 2 diabetes is able to change the level and type of fats (lipid) in the blood, termed the lipid profile, and the function of the endothelium, the thin membrane that lines the heart and blood vessels.

Who can participate?
Patients diagnosed with type 2 diabetes with gum disease (generalized periodontitis)

What does the study involve?

What are the possible benefits and risks of participating?
The possible benefit of participating in the trial is the improvement of lipid profile and endothelial function. The are no risks associated with participation in the trial.

Where is the study run from?
Albanian University (Albania)

When is the study starting and how long is it expected to run for?
January 2018 to March 2019

Who is funding the study?
Investigator initiated and funded

Who is the main contact?
Dr Biagio Rapone (Albania)
biagio.rapone@uniba.it

Contact information

Dr Biagio Rapone
Principal investigator

University of Bari Aldo Moro
Piazza Giulio Cesare 11
Bari
70124
Italy

Phone +3477619817
Email biagio.rapone@uniba.it

Study information

Primary study designInterventional
Study designRandomized controlled clinical trial
Secondary study designRandomised controlled trial
Study type Participant information sheet
Scientific titleThe impact of intensive periodontal treatment on lipid profile and endothelial function in patients with type 2 diabetes: A randomized clinical trial
Study objectivesIntensive periodontal therapy improves the serum lipid profile and the endothelial function in patients with type 2 diabetes
Ethics approval(s)Approved 27/03/2018, Albanian University Committee (Albanian Universit, Rruga e Durresit, Tirane I 001, Albania; +355 686086880; e.qorri@albanianuniversity.edu.al), ref: Nr.114
Health condition(s) or problem(s) studiedImprovement of endothelial function and serum lipid profile in patients with type 2 diabetes via periodontal treatment
InterventionBefore treatment, patients of both groups received oral hygiene instructions. All study participants underwent Intensive Periodontal Treatment (IPT) or Control Periodontal Treatment (CPT) within 1 month from the baseline visit. The protocol of IPT consisted of a single session of one-stage full-mouth disinfection (OSFM), which implicated, supra- and sub-gingival mechanical debridement scaling and manual root surface and calculus removal of all pockets, under local analgesia, within 24 hours in association with chlorhexidine application to all oropharyngeal niches (chairside and at home for 2 months after treatment). Additionally, periodontal surgery was executed for periodontal pockets >5 mm or residual periodontal pockets. The CPT included supra-gingival mechanical debridement. The root planning was delayed at 6 months, after the completion of the trial. At 3 months, supra- and sub-gingival mechanical debridement scaling was executed for both groups.
Intervention typeProcedure/Surgery
Primary outcome measure(s)

Serum lipid profile including levels of:
1. Serum total cholesterol measured by enzyme-linked immunosorbent assays (ELISA) at baseline, 3, and 6 months
2. Serum triglyceride measured by ELISA at baseline, 3, and 6 months
3. Low-density lipoprotein cholesterol measured by ELISA at baseline, 3, and 6 months
4. High-density lipoprotein cholesterol measured by ELISA at baseline, 3, and 6 months
5. Flow-mediated vasodilation (FMD) was assessed non-invasively, using the flow-mediated dilation (FMD) technique at baseline, 3, and 6 months
- as an index of endothelium-dependent vasodilation

Key secondary outcome measure(s)

1. High-sensitive C-reactive protein measured using a commercially available kit at baseline, 3, and 6 months
2. Periodontal pocket depth measured using the manual periodontal probe at baseline, 3, and 6 months
3. Clinical attachment level measured using the manual periodontal probe at baseline, 3, and 6 months

Completion date29/03/2019

Eligibility

Participant type(s)Patient
Age groupAdult
SexAll
Target sample size at registration290
Total final enrolment290
Key inclusion criteria1. Patients diagnosed with type 2 diabetes
2. Generalized periodontitis
Key exclusion criteria1. Provision of informed consent prior to initiation of any study procedures
2. Declined cognitive function and unable to make informed consent
3. Periodontal treatment within the last 12 months
4. Systemic antibiotic therapy within the last 6 months
5. Pregnancy or breastfeeding
6. Uncontrolled hypertension
7. History of heart disease or stroke which might interfere with systemic antioxidative status
8. Active smokers (>10 cigarettes/daily) were excluded
Date of first enrolment28/03/2018
Date of final enrolment23/05/2018

Locations

Countries of recruitment

  • Albania

Study participating centre

Faculty of Medical Sciences, Albanian University
Bulevardi Zogu I
Tirane
1001
Albania

Results and Publications

Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot expected to be made available
IPD sharing planThe datasets generated during and/or analysed during the current study are not expected to be made available

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article results 09/10/2022 16/01/2023 Yes No
Participant information sheet Participant information sheet 11/11/2025 11/11/2025 No Yes

Editorial Notes

16/01/2023: Publication reference and total final enrollment number added.
22/07/2022: Trial's existence confirmed by Albanian University Committee.