Clinical Performance of Injectable Composite Resins in Class I Cavities

Hacettepe University

Status: Active, not recruiting

Conditions: Caries,Dental

Treatments: Device: GC Geanial Injectable (Tokyo,Japan); Device: 3M Filtek Z250 Universal Restorative (Germany)

Study type: Interventional

Funder types: Other

Identifiers

NCT06192667

KA-22112

Details and patient eligibility

About

Purpose of research: Evaluation and comparison of 24-month clinical performance of injectable and conventional resin composites in class I cavities.

Full description

The mechanical properties of conventional resin composites have been tried to be improved. In addition to the developed mechanical properties, the need for easy and fast application led to the development of flowable composites. Flowable composites have lower filler ratio than conventional hybrid composites so they are less rigid and have lower modulus of elasticity. For these reasons, the use of flowable composites in areas that may be exposed to high forces, especially occlusal cavities, is not recommended. Today, it is aimed to increase the wear resistance by increasing the amount of filler in flowable composites and producing injectable composites. A new product recently introduced to the market, a high-strength nano-filled injectable composite material, GC's G-ænial Universal Injectable(Tokyo,Japan), was also included in the study. This is a low-viscosity composite in which modifications have been made to provide a product with high wear resistance and depth of cure to make it suitable for posterior restorations.

One lesion in each patient will be randomly assigned to be restored using either the G-aenial Universal Injectable or Filtek Z250 resin composites. The adhesive, G2-BOND Universal will be used for adhesive procedures. The clinical procedure for the restorations will be performed by a single operator. The restorations will be evaluated by two calibrated examiners at baseline and at 6, 12, 18, 24 months in accordance with the modified USPHS criteria. Data will be statistically analyzed using the Chi-square and Cochran Q tests (p < 0.05).

Enrollment: 30 patients

Sex: All

Ages: 18 to 35 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Healthy individuals who do not have any systemic disease that prevents restorative treatment
• Individuals between the ages of 18-35
• Brushing your teeth twice a day
• Having at least 20 teeth in occlusion and at least 2 occlusal lesions with antagonist teeth in the opposite arch
• Volunteer individuals who agree to participate in the research and sign the informed consent form and who have undergone initial periodontal treatment will be included in the study.

Exclusion criteria

• Pregnant or breastfeeding women
• Individuals with advanced periodontal disease
• Individuals using removable partial dentures
• Individuals with bruxism
• Individuals with malocclusion
• Patients with known allergies to resin-based restorative materials and bonding agents
• Patients with a history of allergy to local anesthesia
• Endodontic treatment, teeth that need pulp capping or endodontic treatment is available

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Crossover Assignment

Masking: Single Blind

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30 participants in 2 patient groups

Geanial Injectable Composite Resin

Experimental group

Description:

It contains 31% methacrylate monomer in the resin matrix and 69% silica and barium glass as fillers. A1, A2, A3, A3.5, A4, B1, B2, B3, C3, CV, BW, AO2, AO3, JE, AE colors are available. Due to their high durability, they can be used in places where recyclable composite resins are used. Apart from this, they are used as fissure sealants, sealants, repair of indirect restorations, blocking of undercuts and liner, like flowable composites. After completing the cavity, the enamel surface was selectively roughened using 37% orthophosphoric acid for 15 seconds. Subsequently, G2 Bond Universal adhesive agent (GC Corp., Tokyo, Japan) was utilized. It was applied in 2mm layers in accordance with the composite manufacturer's instructions. Each layer was polymerized for 20 seconds.

Treatment:

Device: GC Geanial Injectable (Tokyo,Japan)

3M Filtek Z250 Universal Restorative

Experimental group

Description:

It is designed to be used in both anterior and posterior restorations. The filler in the Filtek Z250 restorative is zirconia/silica. The inorganic filler is 60 vol% (without silane treatment) with a particle size of 0.01 to 3.5 μm. Filtek Z250 restorative contains BIS-GMA, UDMA and BIS-EMA monomers. Various restorative color options are available. It is packaged in conventional syringes and single-dose capsules. After completing the cavity, the enamel surface was selectively roughened using 37% orthophosphoric acid for 15 seconds. Subsequently, G2 Bond Universal adhesive agent (GC Corp., Tokyo, Japan) was utilized. It was applied in 2mm layers in accordance with the composite manufacturer's instructions. Each layer was polymerized for 20 seconds.

Treatment:

Device: 3M Filtek Z250 Universal Restorative (Germany)