Association of Coffee With Periodontal Status (acpc)

November 18, 2025 updated by: Tuğba ŞAHİN

Association of Coffee Consumption With Periodontal Health and Disease: An Observational Study

A total of 318 patients applying to Bolu Abant İzzet Baysal University will be included in the study. Based on anamnesis, radiographic examination, and the 2018 classification of periodontal diseases, the participants will be categorized into three groups: periodontal health (n=106), gingivitis (n=106), and periodontitis (n=106). Information regarding participants' coffee consumption habits and their daily coffee intake will be collected. Clinical parameters to be measured will include plaque index, gingival index, bleeding on probing, gingival recession, and clinical attachment level.

The frequency of coffee consumption will be evaluated as daily, 1-2 times per week, 3-4 times per week, once per month, twice per month, and once per year. The amount of coffee consumed at a single occasion (cup, glass, mug, etc.) will also be recorded. In caffeinated coffee consumption, the preference for weak, moderate, or strong coffee, as well as consumption with milk, condensed milk, sugar, honey, or sweeteners will be assessed. For Turkish coffee, the consumption pattern will be categorized as unsweetened, moderately sweetened, or sweetened.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
318

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Turkey (Türkiye)
      • Bolu, Turkey (Türkiye), 14030
        • Bolu abant Izzet Baysal University

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Sampling Method

Non-Probability Sample

Study Population

Individuals with periodontitis, gingivitis, and periodontal disease

Description

Inclusion Criteria:

  • Healthy individuals were between 18 and 65 years

Exclusion Criteria:

  • Individuals were excluded if they had smoked more than 100 cigarettes in their lifetime, were current smokers, had a diagnosis of uncontrolled diabetes mellitus, were pregnant, or were breastfeeding.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Periodontitis
It refers to a chronic inflammatory disease of the supporting tissues of the teeth, characterized by progressive destruction of the periodontal ligament and alveolar bone, with pocket formation and/or gingival recession.
Other: coffee
The type of coffee consumed, the daily amount of coffee, and the frequency of consumption were measured.
Gingivitis
It refers to a reversible inflammation of the gingival tissues without loss of periodontal attachment. The condition is primarily induced by dental plaque accumulation and is characterized clinically by signs such as gingival redness, swelling, and bleeding on probing.
Other: coffee
The type of coffee consumed, the daily amount of coffee, and the frequency of consumption were measured.
Periodontal health
Periodontal health refers to the absence of clinical signs of inflammation in the periodontium, with stable supporting tissues and no evidence of attachment loss or bone destruction.
Other: coffee
The type of coffee consumed, the daily amount of coffee, and the frequency of consumption were measured.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
bleeding on probing
Time Frame: baseline
To test for bleeding after probing, the probe is carefully introduced to the bottom of the pocket and gently moved laterally along the pocket wall. + is maximum and - is minimum.
baseline
Frequency of consumption of fermented foods
Time Frame: baseline
the frequency of fermented foods is measured. The foods questioned were evaluated using a 7-point Likert-type frequency form (every day, 3-4 per week, 1-2 per week, 2 per month, 1 per month, never). In addition, the amounts of foods consumed each time were recorded, and the daily consumption amounts were obtained by dividing them by the frequency of consumption.
baseline
periodontal pocket depth
Time Frame: Baseline
physical methods to measure the distance from the bottom of a pocket to a reference line, usually the gingival margin or the cemento-enamel junction.
Baseline

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
clinical attachment level
Time Frame: baseline
The clinical attachment level (CAL) and radiographically assessed bone levels are used to assess the loss of periodontal tissue support in periodontitis, a chronic, multifactorial inflammatory disease of the periodontium.
baseline
plaque index
Time Frame: baseline
an index for estimating the status of oral hygiene by measuring dental plaque that occurs in the areas adjacent to the gingival margin. 0 is minimum and 3 is maximum. The situation worsens as the score increases.
baseline
gingival index
Time Frame: baseline
The Gingival Index (GI) scores each site on a 0 to 3 scale, with 0 being normal and 3 being severe inflammation characterized by edema, redness, swelling, and spontaneous bleeding. 0 is minimum and 3 is maximum. The situation worsens as the score increases.
baseline

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Tuğba ŞAHİN

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
November 19, 2024

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
July 28, 2025

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
August 28, 2025

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
September 3, 2025

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 3, 2025

First Posted (Estimated)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
September 10, 2025

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
November 21, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
November 18, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
November 1, 2025

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 2024/311

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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