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Composite Restoration

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Composite restorations have become a cornerstone of modern restorative dentistry.

Composite restorations provide predictable results with superior esthetics and durability. As patient demand for metal-free, natural-looking restorations increases, composites offer a versatile solution that preserves tooth structure while delivering excellent functional outcomes.

At Burbank Dental Lab, we craft high-quality composite restorations tailored to meet the precise needs of dentists and their patients. Our advanced materials and precise fabrication techniques ensure restorations that seamlessly integrate with natural dentition, optimizing both strength and esthetics.

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What Is A Composite Restoration?

Composite restorations are direct or indirect restorations made from a blend of resin and finely milled glass particles, offering excellent optical properties and strength. Their ability to bond directly to enamel and dentin reduces microleakage, reinforces tooth structure, and minimizes the removal of healthy tooth material. This adhesive nature makes composites ideal for minimally invasive restorations and more complex cosmetic applications.

At Burbank Dental Lab, we utilize high-performance composite materials engineered for strength, wear resistance, and esthetic accuracy. Our composite solutions provide reliable long-term performance for anterior or posterior restorations while maintaining a lifelike translucency and shade match to natural teeth.

Key Features of Composite Restorations:

  • Precision Esthetics – Composite materials offer highly customizable shade and translucency, allowing seamless integration with natural dentition.
  • Minimally Invasive Preparation – Direct bonding preserves more natural tooth structure than traditional restorative options.
  • Durability & Wear Resistance – Advanced composite formulations provide enhanced strength for posterior applications while maintaining excellent polishability for anterior restorations.
  • Biocompatibility – Free from metal and other reactive materials, reducing the risk of allergic responses or sensitivities.
  • Repairability – Unlike ceramic restorations, composites can be easily repaired chairside, extending their functional lifespan without complete replacement.

Burbank Dental Lab utilizes high-performance composite materials engineered for strength, wear resistance, and esthetic accuracy.

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Indications for Use

Modern composite restorations offer versatile solutions, from simple cavity repairs to cosmetic enhancements, providing dentists with a conservative yet highly effective treatment option.

Composite restorations are an ideal choice for a variety of clinical applications, including:

  • Class I, II, III, IV, and V Restorations – Suitable for conservative cavity preparations with excellent adhesion and esthetics.
  • Diastema Closure – A predictable, minimally invasive method for closing small gaps between teeth without orthodontic intervention.
  • Chipped or Fractured Tooth Repair – Provides a durable and esthetic solution for restoring incisal edges or cusp fractures.
  • Composite Veneers – A cost-effective and reversible alternative to porcelain veneers for cosmetic enhancement.
  • Core Build-Ups – Reinforces weakened tooth structure before crown placement, ensuring optimal support and retention.

COMPOSITION

Composite

IN-LAB WORKING TIME

5-Days

WARRANTY

N/A

conditional warranty

FLEXURAL STRENGTH

Feldspathic Porcelain

80-200 MPa

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Clinical Handling

Precision-crafted indirect composites deliver enhanced longevity and esthetics for complex restorations.

Indirect Composite Restorations:

  • Lab-Fabricated Composite Inlays & Onlays – Provide superior adaptation and wear resistance compared to direct restorations.
  • CAD/CAM Composite Crowns – Offer a balance between strength and esthetics, particularly in cases requiring minimal reduction.
  • Bonded Composite Bridges – A viable alternative for single-unit tooth replacement where full-coverage crowns are unnecessary.
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Preparation Guidelines

Proper preparation techniques are the foundation for successful, long-lasting composite restorations.

Proper tooth preparation is critical to ensuring the longevity and success of composite restorations. The following guidelines can help optimize bond strength and esthetic outcomes:

  • Inlay Preparation – Minimize removal of healthy tooth structure by maintaining conservative cavity designs.
  • Beveling for Anterior Restorations – A beveled enamel margin enhances esthetic blending and increases surface area for bonding.
  • Rounded Internal Angles – Reduce stress points and enhance adaptation of the composite material.
  • Moisture Control – Use rubber dam isolation to prevent contamination and ensure a reliable bond.

Precise tooth preparation is essential to achieving strong adhesion and optimal esthetic outcomes for composite restorations. The following guidelines provide best practices for achieving long-term success:

Anterior Composite Restorations:

  • Beveling: Bevel enamel margins at a 45-degree angle, extending 1-2 mm to enhance esthetic blending and increase bond strength.
  • Depth: Maintain a minimum preparation depth of 1.5 mm to ensure adequate material strength.
  • Rounded Internal Angles: Reduce stress concentration by avoiding sharp internal line angles.
  • Margin Placement: Keep margins on enamel whenever possible to maximize bond integrity.

Posterior Composite Restorations

  • Depth and Clearance: Maintain a minimum occlusal reduction of 1.5-2.0 mm for adequate material thickness.
  • Proximal Box Design: Extend proximal margins slightly beyond the contact point while keeping walls divergent to avoid undermining enamel.
  • Retention Grooves: Consider adding 0.5 mm deep grooves in cases of limited enamel bonding or high occlusal forces.
  • Cavosurface Margins: Use butt-joint margins instead of beveled margins to prevent thin, unsupported composite layers in high-stress areas.

Inlays, Onlays, and Indirect Composite Restorations:

  • Occlusal Reduction: Ensure a minimum of 2.0 mm occlusal clearance for load-bearing restorations.
  • Internal Preparation: Maintain rounded internal line angles and a 6-10 degree taper for optimal adaptation.
  • Isthmus Width: Maintain at least 2.0 mm width to prevent fractures and ensure adequate material strength.
  • Marginal Design: Chamfer or butt-joint margins provide the best adaptation and strength.

Cementation Guidelines

Precise adhesive protocols transform indirect composites into seamlessly integrated, durable restorations.

Although composite restorations are typically bonded rather than cemented, indirect composite restorations such as inlays, onlays, and CAD/CAM composite crowns require proper adhesive protocols. Key steps include:

  • Surface Conditioning – Sandblasting or hydrofluoric acid etching enhances micromechanical retention.
  • Silane Application – Applying a silane coupling agent improves the bond strength of resin-based cement.
  • Dual-Cure or Light-Cure Resin Cement – Selection depends on restoration thickness and translucency.
  • Proper Seating & Excess Removal – Ensure even seating under controlled pressure, and remove excess cement before full polymerization.
  • Final Curing & Occlusal Adjustments – Fully cure margins and verify occlusion to ensure long-term success.

Chairside Adjustments

Refined finishing techniques ensure optimal occlusion and patient comfort while preserving the restoration’s longevity.

Composite restorations may require minimal chairside adjustments to optimize occlusion and patient comfort. Consider the following best practices:

  • Occlusal Refinement – Use fine carbide or diamond burs to adjust high spots while preserving the integrity of the composite material.
  • Polishing After Adjustments – Re-polish the adjusted areas using a sequential polishing system to restore surface luster and stain resistance.
  • Marginal Integrity Checks – Ensure smooth transitions between the composite and natural tooth structure to prevent plaque accumulation and irritation.
  • Contour Refinement – Utilize finishing strips and discs for interproximal adjustments to maintain anatomical accuracy.
  • Patient Comfort Evaluation – Have the patient perform occlusal movements to confirm proper function and eliminate premature contacts.

Composite restorations have revolutionized restorative dentistry, offering a versatile, esthetic, and minimally invasive solution for a wide range of clinical indications. Burbank Dental Lab provides high-quality composite restorations designed for superior function, durability, and lifelike appearance. Partner with us for expertly crafted restorations that enhance patient satisfaction and streamline clinical workflows.

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Composite Restoration - Burbank Dental Lab
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FAQ

What is the expected longevity of composite restorations?

With proper case selection and placement technique, composite restorations can last 5 to 10 years and, in some cases, longer. Their longevity depends on factors such as occlusal forces, patient compliance with oral hygiene, and material selection. Regular recall visits allow for early intervention if wear or marginal breakdown occurs.

Are composite restorations reliable for posterior teeth?

Yes, advancements in composite materials have made them a viable option for posterior restorations. High-performance composites exhibit increased wear resistance and strength, making them suitable for molar restorations. However, case selection is critical, and in patients with heavy occlusal forces or parafunctional habits, indirect composite or ceramic alternatives may be preferable.

Do composite restorations stain over time?

While modern composite materials are engineered for stain resistance, they may still be susceptible to discoloration from coffee, tea, red wine, and tobacco. Regular polishing and proper finishing techniques can help maintain long-term esthetics. Selecting microfill or nanohybrid composites with high polishability can also minimize surface staining.

Can composite restorations be repaired or modified?

One key advantage of composite restorations is their ability to be repaired. If a small chip or marginal defect occurs, additional composite can be bonded to the existing restoration without complete replacement. This allows for cost-effective maintenance and extended longevity of the restoration.

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