Evaluation of Air Abrasion Surface Pretreatment in the Repairing Capacity of Defective Composite Restoration

Study Overview
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Brief Summary
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This study is conducted to compare the efficacy of surface pretreatment using air abrasion sandblasting aluminum oxide particles (Al2O3) versus not pretreatment in the repair capacity of defective composite restoration indicated for repair.

Detailed Description
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First the rationale for the repair, rather than the replacement of defective direct composite restorations proved a less invasive procedure with decreased tooth loss avoiding weakening and overtreatment of tooth. Less traumatic or stressful than replacement for patients with good acceptance; Increased longevity of the restoration; Reduction of potentially harmful effects on the dental pulp and Less risk of iatrogenic damage to adjacent teeth. Secondary using surface treatment strategies aim to prepare a clean surface with high surface energy to provide better wettability with adequate surface roughness and surface area by removing the superficial layer of the aged composite which lead to increase integrity between old and new resin restoration.

Official Title
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Clinical Evaluation of Bioactive Injectable Hybrid Resin Composite Restoration With or Without Air Abrasion Surface Pretreatment in the Repairing Capacity of Defective Composite Restoration, A Randomized Controlled Clinical Trial

Conditions
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Repair

Intervention / Treatment
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* Device: Air abrasion sandblasting aluminum oxide particles (Al2O3) AquaCare single (Velopex, Medivance Instruments Ltd., London, UK)


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Co-operative patients approving to participate in the trial. patient with occlusal defects class I or class II composite resin restorations indicated for repair. Exclusion Criteria: Allergic history concerning methacrylate. Rampant caries. Disabilities patient Pregnancy Heavy smoking. Xerostomia. Lack of compliance. Evidence of parafunctional habits. Temporomandibular joint disorders.

Ages Eligible for Study
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Minimum Age: 20 Years
Maximum Age: 50 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: Double


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: surface pretreatment sandblasting<br>Air abrasion sandblasting aluminum oxide particles (Al2O3) Aqua Care single (London, UK) will be done for the defective area then repairing with bioactive injectable composite, Beautiful Flow Plus X F00 (Shofu, Japan). The surface treatment for aged composite will be applied according to manufacturer instructions. Repairing with bioactive injectable composite, Beautiful Flow Plus X F00(Shofu, Japan) The material will be applied according to manufacturer instructions. After shade selection incremental insertion in layers not exceeding 2 mm and light curing for 10 sec using 3M Eliper curing unite (Elipar Deepcure-S, 3M). | Device: Air abrasion sandblasting aluminum oxide particles (Al2O3) AquaCare single (Velopex, Medivance Instruments Ltd., London, UK)<br>* Air abrasion sandblasting aluminum oxide particles (Al2O3) Aqua Care single (London, UK) will be done for the defective area then repairing with bioactive injectable composite, Beautiful Flow Plus X F00 (Shofu, Japan).<br>* Other names: sandblasting;|
| Active Comparator: Repairing with conventional nanohybrid composite<br>The nanohybrid resin composite will be applied to the the cavity using the conventional incremental technique according to manufacturer instructions. | Device: Air abrasion sandblasting aluminum oxide particles (Al2O3) AquaCare single (Velopex, Medivance Instruments Ltd., London, UK)<br>* Air abrasion sandblasting aluminum oxide particles (Al2O3) Aqua Care single (London, UK) will be done for the defective area then repairing with bioactive injectable composite, Beautiful Flow Plus X F00 (Shofu, Japan).<br>* Other names: sandblasting;|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Change in the clinical performance | Change in the clinical performance Measured using modified USPHS criteria for clinical evaluation of restoration failure. Measuring Unit: Scoring system (Ordinal): Alfa Bravo Charlie Delta | Change from the baseline at 12 months | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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repair, defective restoration, sandblasting