Laser-assisted Pontic Site Soft Tissue Healing Prior to Fixed Partial Denture Rehabilitation

February 16, 2026 updated by: İREM KARAGOZOGLU, University of Gaziantep

Laser-Assisted Pontic Site Soft Tissue Healing Prior to Fixed Partial Denture Rehabilitation: A Randomized Placebo-Controlled Clinical Trial

This randomized placebo-controlled clinical trial aimed to evaluate the effect of laser-assisted therapy on soft tissue healing at the pontic site prior to fixed partial denture rehabilitation. Clinical healing outcomes, postoperative pain levels, and gingival crevicular fluid transforming growth factor beta-2 (TGF-β2) levels were assessed to determine the biological and clinical effects of laser therapy compared with placebo.

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.

Detailed Description

Delayed or compromised soft tissue healing at the pontic site may prolong prosthetic treatment and negatively affect tissue stability and patient comfort. Photobiomodulation has been reported to enhance wound healing and modulate inflammatory and regenerative processes. This randomized placebo-controlled clinical trial evaluated the clinical and biological effects of laser-assisted therapy on pontic site healing prior to fixed partial denture rehabilitation. Clinical healing index scores, wound dimensions, postoperative pain levels, and gingival crevicular fluid TGF-β2 levels were assessed to investigate both clinical and biological aspects of healing.

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.
Interventional

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.
45

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

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)
    • Turkey
      • Gaziantep, Turkey, Turkey (Türkiye), 27310
        • Gaziantep University Faculty of Dentistry

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

Description

Inclusion Criteria:

  • Adults aged 18 years or older
  • Patients requiring single-tooth extraction followed by fixed partial denture rehabilitation
  • Patients in good general health
  • Patients willing to participate and able to provide informed consent

Exclusion Criteria:

  • Presence of systemic diseases that may affect wound healing (e.g., uncontrolled diabetes, immunological disorders)
  • Active periodontal disease at the study site
  • Use of medications affecting wound healing
  • Smoking or tobacco use
  • Pregnancy or lactation
  • History of radiotherapy in the head and neck region
  • Known contraindications to laser therapy

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

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
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.
Experimental: GRR Laser
Laser therapy applied once daily for five consecutive days following tooth extraction.
Device: GRR laser
Low-level laser therapy applied once daily for five consecutive days following tooth extraction to enhance soft tissue healing at the pontic site.
Experimental: Nd:YAG Laser
Nd:YAG laser therapy applied once daily for five consecutive days following tooth extraction.
Device: Nd:YAG laser
Nd:YAG laser therapy applied once daily for five consecutive days following tooth extraction to promote soft tissue healing.
Placebo Comparator: Placebo
Sham laser application performed under identical conditions without energy delivery.
Other: Sham laser
Placebo laser application performed under identical conditions without energy delivery.

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
Clinical healing index (Landry, Turnbull and Howley Healing Index)
Time Frame: Baseline, Day 7, Day 14
Clinical healing was assessed using the Landry, Turnbull and Howley Healing Index, which provides a single composite ordinal score ranging from 1 to 5, where higher scores indicate better soft tissue healing. The score is determined based on clinical evaluation of tissue color, bleeding on palpation, presence of granulation tissue, and degree of epithelialization at the pontic site.
Baseline, Day 7, Day 14

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
Wound size reduction
Time Frame: Baseline, Day 7, Day 14
Measurement of wound dimensions at the pontic site to evaluate soft tissue healing.
Baseline, Day 7, Day 14
Postoperative pain (VAS)
Time Frame: Baseline, Day 7, Day 14
Postoperative pain intensity was assessed using a Visual Analog Scale (VAS) ranging from 0 to 10, where 0 indicates no pain and 10 indicates the worst imaginable pain. Higher scores indicate greater pain intensity.
Baseline, Day 7, Day 14
Gingival crevicular fluid TGF-β2 levels
Time Frame: Baseline, Day 7, Day 14
Biochemical evaluation of transforming growth factor beta-2 levels in gingival crevicular fluid to assess biological aspects of wound healing.
Baseline, Day 7, Day 14

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.
University of Gaziantep

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: İREM KARAGÖZOĞLU, University of Gaziantep

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.
March 15, 2025

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.
May 15, 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.
June 15, 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).
February 9, 2026

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.
February 16, 2026

First Posted (Actual)

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.
February 17, 2026

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.
February 17, 2026

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.
February 16, 2026

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.
February 1, 2026

More Information

Terms related to this study

Keywords

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.
  • 2022/419

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

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.

Cookie Settings

We use cookies to ensure that we give you the best experience on our website. For more details carefully read our Privacy and Cookies Policy. ...>>>You can change your preferences or withdraw your consent at any time by deleting the cookies from your website or computer as described in the policy. Please accept it and choose your preferences by ticking the corresponding boxes in the "Manage Settings" section below. Please carefully read our Terms of Service before you proceed with using any part of this website.
«Manage Settings