Desensitizing Effect and Tooth Color Change After Using Giomer-based Varnish Versus Bioactive Glass Air Polishing in Treating Cervical Hypersensitive Lesions

May 25, 2026 updated by: omnia samy Garouda, Cairo University
This trial is test the dentin hypersenstivity using Giomer based Varnish versus Bioactive glass air polishing system in patients with non-cervical lesions.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

To investigate the clinical effectiveness of Giomer based varnish versus Bioactive glass air polishing System in the management of dentin hypersensitivity and tooth color change in the cervical lesions.

P:Patient/Population: Middle aged patients complaining of cervical dentin hypersensitivity. I: Giomer varnish containing surface pre-reacted glass fillers. C: Bio-active glass air polishing system: O:Dentin Hypersenstivity (Primary Outcome) was assessed by three different stimuli (evaporative , thermal and tactile) . O: Color Change (Secondary Outcome). T: Baseline, T1, T2, T3. S:a randomized clinical trial.

Study Type

Interventional

Enrollment (Actual)

30

Phase

  • 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

  • Egypt
    • Cairo Governorate
      • Cairo, Cairo Governorate, Egypt, 1151
        • 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

Ages Eligible for Study

  • Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Participants complaining from dentin hypersensitivity.
  • Middle aged patients.
  • Good oral hygiene.

Exclusion Criteria:

  • Pregnant women.
  • Patients with allergy to any material used in this study.
  • Smoking patients will affect the oral hygiene and periodontal health.
  • Patients taking anti-inflammatory drugs that will affect the perception of hypersensitivity.
  • Systemically compromised patients.
  • Smokers.
  • Patients received desensitization treatment in the last 6 months

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: Triple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Giomer varnish containing surface pre-reacted glass fillers
Giomer-based varnish is a light-curable varnish/desensitizer. The surface pre-reacted glass (S-PRG) filler is a bioactive trilaminar structure with a multifunctional glass core embedded in resin matrix. It can release and recharge fluoride ions. When it becomes in contact with the oral fluids, it starts to bind to the collagen fiber and release six different types of ions like fluoride, calcium, phosphate that help in the formation of apatite crystals and seal the open dentinal tubules with a long-lasting effect Brand name: S_PRG (Shofu-Japan)
Other: Giomer varnish containing surface pre-reacted glass fillers

Giomer varnish (PRG barrier coat) will used as the intervention agent in this study. , Giomer is considered as a hybrid material between the resins modified glass ionomers and the composite resins. It is composed of 45% Sio2, 24.5% Na2O, 24.5% Ca O and 6% P2O5

. The presence of sodium is very important due to its bioactivity while the phosphate is responsible for the degree of degradation and formation of apatite. Based on this composition, giomer has several clinical applications in implant, periodontics, bone generation, pulp capping, Root canal treatment, as restorative materials, in air abrasion, enamel remineralization and finally dentin hypersensitivity
Active Comparator: Bioactive Glass Air Polishing
Bioactive glass powder delivered by an air-polishing device (ProJet 1) equipped with a 0.6-mm-diameter nozzle and a particle size range: 38-90 µm . A bioactive material that reacts with saliva to deposit Hydroxycarbonate Apatite crystals (HCA), which is very strong and resilient. The continuous release of calcium ions promotes constant protection and long lasting seal of the tubules. Using the air polishing delivery system helps to provide a huge amount of calcium and phosphate particles at the exposed surface of the tooth. Moreover, the air pressure aids in pushing these particles inside the dentinal tubules to a considerable depth. Air polishing using such powder provides a bifunctional advantage of occluding the dentinal tubules. However, there is limited clinical trials testing the efficacy of the bioactive glass powder air polishing system in minimizing the dentin hypersensitivity
Other: Giomer varnish containing surface pre-reacted glass fillers

Giomer varnish (PRG barrier coat) will used as the intervention agent in this study. , Giomer is considered as a hybrid material between the resins modified glass ionomers and the composite resins. It is composed of 45% Sio2, 24.5% Na2O, 24.5% Ca O and 6% P2O5

. The presence of sodium is very important due to its bioactivity while the phosphate is responsible for the degree of degradation and formation of apatite. Based on this composition, giomer has several clinical applications in implant, periodontics, bone generation, pulp capping, Root canal treatment, as restorative materials, in air abrasion, enamel remineralization and finally dentin hypersensitivity

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Pain due to dentin hypersenstivity
Time Frame: baseline preoperative, immediate postoperative, 1 , 6 and 12-months' time

Dentin hypersensitivity was assessed by three different stimuli (evaporative , thermal and tactile) to simulate the different situations in which Dentin hypersensitivity arises. Using the Visual Analog scale (VAS), the participant marks the pain intensity on a graduated 10 cm straight line (0

= no pain, 10 = extreme pain)
baseline preoperative, immediate postoperative, 1 , 6 and 12-months' time

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Color change (Tooth discoloration)
Time Frame: Baseline preoperative, immediate postoperative, 1,6 and 12-months time
According to the Modified USPH criteria Alpha: Matches tooth Bravo: Acceptable mismatch Charlie: Unacceptable mismatch
Baseline preoperative, immediate postoperative, 1,6 and 12-months time

Collaborators and Investigators

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

Sponsor

Cairo University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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)

November 20, 2024

Primary Completion (Actual)

November 25, 2025

Study Completion (Actual)

January 26, 2026

Study Registration Dates

First Submitted

July 31, 2023

First Submitted That Met QC Criteria

July 31, 2023

First Posted (Actual)

August 8, 2023

Study Record Updates

Last Update Posted (Actual)

May 28, 2026

Last Update Submitted That Met QC Criteria

May 25, 2026

Last Verified

July 1, 2023

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 14422022559057

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.

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