Evaluation of Adverse Effects Related to Prescribed Medications in a Periodontology Clinic

June 23, 2026 updated by: Sukran Acipinar, Cumhuriyet University

Evaluation of Adverse Effects Related to Prescribed Medications in a Periodontology Clinic in Terms of Causality, Severity, and Quality of Life: A Prospective Study

Various pharmacological treatment approaches, primarily antibiotics, analgesics, and antiseptic agents, are frequently used in the treatment of periodontal diseases. While these drugs are important for the clinical effectiveness of periodontal treatment, drug-related side effects can negatively impact patient compliance, quality of life, and overall patient safety, and in some cases, may lead to premature termination of treatment. Early identification of drug-related side effects, assessment of causality, and classification of severity form the basis of pharmacovigilance practices. In this context, the Adverse Event Reporting System (FAERS), run by the United States Food and Drug Administration (FDA), is an important data source for detecting drug-related side effects and presenting safety signals. Large databases like FAERS draw attention to potential drug-related side effects and provide valuable information on drug safety. However, this data is largely based on patient/user or physician feedback, and these systems are insufficient to assess the true frequency, clinical severity, and impact on patients' quality of life of side effects.

Side effects related to medications prescribed in periodontology clinics are often considered mild or transient, thus limiting systematic feedback based on real-life data. Therefore, systematic and patient-centered clinical studies using standard algorithms and scales based on real-life data are needed. This study aims to determine the frequency of side effects related to medications prescribed in a periodontology clinic over an 18-month period and to evaluate them according to gender and age. As a secondary aim, it aims to evaluate the causal relationship of these side effects with the medications, their clinical severity, and their impact on patients' quality of life related to oral health using a holistic approach.

This will ensure that not only the presence of side effects but also clinical and patient-centered outcomes are presented in an objective, standardized, and reproducible manner.

Study Overview

Status

Recruiting

Conditions

Intervention / Treatment

Study Type

Observational

Enrollment (Estimated)

571

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

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

Ages Eligible for Study

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Sampling Method

Non-Probability Sample

Study Population

Patients who receive treatment at the Department of Periodontology, Faculty of Dentistry, Sivas Cumhuriyet University between March 30, 2026 and September 30, 2027, who meet the inclusion criteria, and who have been prescribed any pharmacological agent will be included.

Description

Inclusion Criteria:

Being 16 years of age or older

  • Receiving treatment at a periodontology clinic • Having been prescribed at least one pharmacological agent
  • Volunteering to participate in the study and providing informed consent

Exclusion Criteria:

  • Having a cognitive problem that would prevent the evaluation of side effects related to drug use

    • Patients who did not come for evaluation during the follow-up period or for whom sufficient follow-up data could not be obtained
    • Patients who provided incomplete, inconsistent or unreliable data regarding side effect evaluation

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

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Naranjo algorithm results
Time Frame: 12 months

The results of this algorithm will be recorded according to the medications used.The Naranjo algorithm is a method that allows for the standard and repeatable evaluation of drug-side-effect relationships. For each identified potential drug side effect, the causal relationship between the drug and the side effect will be evaluated using the Naranjo adverse drug reaction probability algorithm. This algorithm consists of 10 questions that inquire about the probability of the side effect being drug-related, and based on the total score obtained, the side effects will be classified as follows:

  • ≥9 points: Certain
  • 5-8 points: Possible
  • 1-4 points: Probable
  • 0 points: Suspicious
12 months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Hartwig-Siegel Adverse Effect Severity Scale
Time Frame: 12 months

The Hartwig-Siegel side effect severity scale will be recorded according to the medications used and their side effects.Side effects will be assessed using the Hartwig-Segel side effect severity scale. This scale classifies side effects according to their need for clinical intervention and outcomes. Accordingly, side effects will be grouped as follows:

  • Mild (Level 1-2): Side effects that do not require treatment change or are controlled with minimal intervention
  • Moderate (Level 3-4): Side effects that require drug discontinuation, dose change, or additional treatment
  • Severe (Level 5-7): Side effects that require hospitalization, permanent damage, or are life-threatening.
12 months
Oral Health Impact Profile-14 (OHIP-14).
Time Frame: 12 months

The impact of drug side effects on quality of life will be recorded using OHIP-14. The impact of drug-related side effects on patients' quality of life will be evaluated using the oral health-related quality of life scale. For this purpose, the OHIP-14 scale, whose validity and reliability have been proven, will be applied. The scale consists of 14 items covering areas such as functional limitations, physical pain, psychological distress, and social disability. Each item will be scored using a Likert-type scale, and an increase in the total score indicates a negative impact on quality of life. The following questions will be answered considering the possible side effects of the drugs prescribed in the periodontology clinic. For scoring; All items are added together. The total score range is 0-56.

A higher score indicates that oral health has a greater negative impact on quality of life.
12 months

Collaborators and Investigators

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

Sponsor

Cumhuriyet University

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)

March 30, 2026

Primary Completion (Estimated)

July 30, 2027

Study Completion (Estimated)

September 30, 2027

Study Registration Dates

First Submitted

June 18, 2026

First Submitted That Met QC Criteria

June 18, 2026

First Posted (Actual)

June 24, 2026

Study Record Updates

Last Update Posted (Actual)

June 26, 2026

Last Update Submitted That Met QC Criteria

June 23, 2026

Last Verified

June 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • Ali Kemal YILMAZ

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

The data can be shared once the study is published.

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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