Clinical Evaluation of Chemically Cured Conventional Glass Ionomer After Light Emitting Diode Radiant Heat Enhancement

Study Overview
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Brief Summary
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Introduction: Glass ionomer cements (GICs) are widely used in clinical dentistry due to their advantageous properties. However, they present inferior physical and mechanical properties compared to resin composites. Aim: Clinical evaluation of chemically cured conventional glass ionomer after light-emitting diode radiant heat enhancement. . Methodology: Eighteen healthy patients with 36-second molar teeth will be selected where each patient should have two oclusso- mesial cavities. Standardized oclusso- mesial cavities will be prepared for all the selected teeth, for each patient the first tooth will be restored with chemically cured conventional GICs without any enhancement (M1 group). Meanwhile, the second tooth will be restored by chemically cured conventional GICs that enhanced with radiant heat (LED) (M2 group). functional and biological criteria of each restoration will be clinically evaluated at 4 time points

Detailed Description
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Introduction: Glass ionomer cements (GICs) are widely used in clinical dentistry due to their advantageous properties. However, they present inferior physical and mechanical properties compared to resin composites. Various techniques have been suggested to improve properties of conventional GICs such as radiant heat transfer by Light Emitting Diode (LED) or lasers, ultrasonic energy transfer also using of (CaCl2) solution. Aim: Clinical evaluation of chemically cured conventional glass ionomer after light-emitting diode radiant heat enhancement. . Methodology: Eighteen healthy patients with 36-second molar teeth will be selected where each patient should have two oclusso- mesial cavities. Standardized oclusso- mesial cavities will be prepared for all the selected teeth, for each patient the first tooth will be restored with chemically cured conventional GICs without any enhancement (M1 group). Meanwhile, the second tooth will be restored by chemically cured conventional GICs that enhanced with radiant heat (LED) (M2 group). functional and biological criteria of each restoration will be clinically evaluated immediately after restoration (T0), six months later (T1), and after 12 months (T2) using Federation Dentaire International (FDI) criteria for assessment of dental restorations.

Official Title
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Clinical Evaluation of Chemically Cured Conventional Glass Ionomer After Light Emitting Diode Radiant Heat Enhancement: A Randomized Controlled Clinical Trial

Conditions
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High Caries Risk Patients

Intervention / Treatment
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* Other: KetacTM Universal AplicapTM
* Other: KetacTM Universal AplicapTM with light cure


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Age group 21 - 45 years. Both males and females will be included. Ability to return for periodic follow-up (good general health). Only co-operative patients. Vital upper or lower carious posterior teeth. Exclusion Criteria: Teeth with any pathologic pulpal disease. Teeth with previous restorations Teeth with surface loss due to attrition, erosion, abrasion, or abfraction. Patients with severe or chronic periodontitis. Patients have allergy to the materials used in this trial. 6- Nonfunctioning teeth with no opposing dentition.

Ages Eligible for Study
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Minimum Age: 21 Years
Maximum Age: 45 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Triple


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: chemically cured conventional glass ionomer restorative (Ketac Universal Aplicap)<br>For restoration of M1 group, capsule activation will be performed through loading of the KetacTM Universal AplicapTM GIC capsule into its activator keeping the applicator nozzle closed, using the ball of my hand to depress the activator lever firmly as far as it will go and hold it down for 2 to 4 seconds. Then the capsule will be mixed in a high frequency mixing device for 8 seconds. The mixed capsule will be immediately removed from the mixer and loaded into the AplicapTM Applier then application nozzle will be opened to extrude the mixture directly into the preparation as a single bulk within 1:40 minute. The preliminary contour will be done using a ball burnisher. | Other: KetacTM Universal AplicapTM<br>* chemically cured conventional GICs<br>|
| Experimental: Ketac Universal Aplicap enhanced with light-emitting diode radiant heat<br>Restoration of M2 group will be performed following the same steps which will be carried out for M1 group but the achieved restorations will be enhanced by light-emitting diode radiant heat for 60 seconds | Other: KetacTM Universal AplicapTM with light cure<br>* chemically cured conventional GICs with light curing enhancement<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Clinical performance of biological properties | Clinical performance of biological properties according to FDI criteria | 12 months | 
| Clinical performance of Functional properties | Clinical performance of Functional properties according to FDI criteria | 12 months |