NCT04145557

Brief Summary

The study will cover 80 patients under 70 years of age. Initially they will be assigned to three groups: patients generally healthy with periodontitis (P), patients after myocardial infarction with periodontitis (CP) and patients generally healthy with a healthy periodontium (H). Periodontal examination will be performed before treatment, 2 weeks and 3 months after the treatment with a Williams probe calibrated at intervals 1-2-3-5-7-8-9-10mm. Pocket depth (PD), clinical loss of the attachment (CAL) bleeding on probing (BOP), plaque control record (PCR) measurements will be performed. Clinical data will be collected at six sites per tooth (mesiobuccal, midbuccal, distobuccal, mesiolingual, midlingual, and distolingual) of the designated study teeth. PD will be measured in millimeters from the free gingival margin to the base of the probable pocket using a periodontal probe. The presence of BOP will be determined as being present or absent (+/-) within 30 seconds after probing. CAL will be defined as the distance from the cementoenamel junction to t the base of the probable pocket . Patients within CP and P groups will be randomly assigned to one of the two groups (study group and control group) and an later visit will be scheduled. Before treatment, teeth will be rinsed and the study areas will be isolated with cotton rolls and dried gently. Supragingival plaque will then be removed with a sterile curret without coming into contact with the gingiva. GCF samples will be collected from the deepest single root tooth pockets previously identified. The sample will be collected from the deepest pocket using the Periopaper strips (OraflowInc., USA). Before collecting the material, the teeth will be insulated with cotton swabs. The teeth will then be dried with air. The strips will be placed in pockets until a slight resistance is perceived, and they will be left in place for 30 seconds and then transferred to Periotron 8000 (OraflowInc., USA) for the determination of fluid volume. Strips contaminated by bleeding will be discarded. Next, each strip will be inserted into the Eppendorff tube and sent to the laboratory at the Medical Analytics Department of PUM in Szczecin for further analysis. The volume of the gingival fluid will be given in μl, in accordance with the conversion of values displayed as a reading on the device. The microbiological examination (via Real-PCR method) for the presence of pathogenic bacteria for periodontium will be performed using commercial standard sets PET-MIP deluxe ® (MIP Pharma). Samples will be taken from the patient's deepest periodontal pocket. After isolation of the examined tooth from the access of saliva, sterile paper will be placed inside the pocket for 10 seconds following transfer to the transport containers included in the PET-Mip deluxe ® kits and sent to the MIP-Pharma laboratory in St. Ingbert in Germany. In the control and study group, supra and subgingival scaling and root smoothing with Gracey currets will be performed. Individual oral hygiene instructions will also be given to each patient. In addition laser therapy of the pockets with a 980nm diode laser will be carried out in the study group. The levels of TC, LDL, HDL, TG, hsCRP, leukocytes, fibrinogen, OB, IL-6, AST, ALT in the peripheral blood will be marked three times (before treatment, 2 weeks and 3 months post treatment). For this purpose, the blood will be taken from the superficial veins of the forearm and sent for further analysis at the Medical Analytics Department of PUM in Szczecin.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
40

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Aug 2019

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

August 12, 2019

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

October 24, 2019

Completed
6 days until next milestone

First Posted

Study publicly available on registry

October 30, 2019

Completed
5.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 30, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 30, 2024

Completed
Last Updated

December 19, 2025

Status Verified

December 1, 2025

Enrollment Period

5.4 years

First QC Date

October 24, 2019

Last Update Submit

December 14, 2025

Conditions

Keywords

periodontitisdiode laserMyocardial infarction

Outcome Measures

Primary Outcomes (3)

  • PD

    periodontal pocket depht

    up to 3 months

  • Bacterial count

    level in periodontal pocket

    up to 3 months

  • hsCRP

    level in serum

    up to 3 months

Secondary Outcomes (13)

  • CAL

    december 2019

  • BOP

    up to 3 months

  • elastase

    up to 3 months

  • fibrynogen

    up to 3 months

  • Il-6

    up to 3 months

  • +8 more secondary outcomes

Study Arms (2)

skaling root planing

PLACEBO COMPARATOR
Device: scaling root planing

skaling root planing and diode laser

ACTIVE COMPARATOR
Device: diode laser 980nm

Interventions

Procedure: Periodontal therapy with laser Scaling, root planning, oral hygiene instruction and diode laser 980nm treatment of periodontal pockets

skaling root planing and diode laser

scaling and root planing

skaling root planing

Eligibility Criteria

Age35 Years - 70 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • \. myocardial infarction treated with primary coronary angioplasty in the last 6 months, 2. age \<65 years 3. Periodontitis diagnosed according to Page criterion -
  • ≥ 2 tooth surfaces on interprimimal spaces with a loss of CAL≥4mm (not for the same tooth)
  • ≥2 tooth surface in the interpharmal space with PD≥4mm
  • positive bleeding on probing test (BOP) 4. signed informed consent

You may not qualify if:

  • Acute inflammation of the airways or urinary tract
  • Neoplasmas
  • Rheumatic diseases
  • Autoimmune diseases
  • Chronic liver disease
  • Chronic kidney failure 4. and 5. stage
  • History of a stroke or TIA
  • Lack of consent for participation in the study
  • Antibiotic therapy in the last 12 months
  • Periodontal treatment in the last 6 months
  • Participation in other studies

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Departament of Periodontology

Szczecin, 70-204, Poland

Location

Related Publications (1)

  • Samulak R, Suwala M, Dembowska E. Nonsurgical periodontal therapy with/without 980 nm diode laser in patients after myocardial infarction: a randomized clinical trial. Lasers Med Sci. 2021 Jul;36(5):1003-1014. doi: 10.1007/s10103-020-03136-6. Epub 2020 Sep 4.

MeSH Terms

Conditions

Myocardial InfarctionPeriodontal DiseasesPeriodontitis

Interventions

Lasers, Semiconductor

Condition Hierarchy (Ancestors)

Myocardial IschemiaHeart DiseasesCardiovascular DiseasesVascular DiseasesInfarctionIschemiaPathologic ProcessesPathological Conditions, Signs and SymptomsNecrosisMouth DiseasesStomatognathic Diseases

Intervention Hierarchy (Ancestors)

LasersOptical DevicesEquipment and SuppliesRadiation Equipment and Supplies

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal investigator

Study Record Dates

First Submitted

October 24, 2019

First Posted

October 30, 2019

Study Start

August 12, 2019

Primary Completion

December 30, 2024

Study Completion

December 30, 2024

Last Updated

December 19, 2025

Record last verified: 2025-12

Data Sharing

IPD Sharing
Will not share

Documentation of study participants in paper form will be kept at the Department of Periodontology. We provide information on aggregate results in tables and statistical analysis after contact by email.

Locations