Dental Update Posterior Article By Dr Burgess and Prof Dominic Hassall

Read the full article: Download PDF

Key Highlights

Shift from Amalgam to Composite Restorations

Since the Minamata Convention in 2013, there has been a global shift away from dental amalgam due to environmental concerns. As a result, composite materials have become more widely adopted for posterior restorations, requiring updated clinical techniques for successful outcomes.

Challenges with Traditional Techniques

Achieving reliable contact points in Class II composite restorations has long been a challenge. Common issues include recurrent caries and periodontal problems—often due to outdated methods, inadequate training, and limitations in matrix systems.

The Bioclear Method: A Modern Solution

The Bioclear Method incorporates several innovations to improve restoration success:

  • Biofilm Removal: Thorough surface cleaning improves bond strength and restoration longevity.
  • Modern Cavity Preparation: Designs based on adhesive principles, reducing the need for mechanical retention.
  • Anatomical Matrix Systems: Engineered to recreate proper contact points and emergence profiles.
  • Warm Injection Molding: Heated composite allows monolithic restorations with minimal voids and excellent adaptation.
  • Polishing Protocols: Advanced finishing techniques yield smooth, stain-resistant surfaces.

Clark Class II Cavity Design

Developed by Dr. David Clark, this cavity design emphasizes:

  • Adhesion Over Retention: Conserves more tooth structure by eliminating traditional retention features.
  • Compression Joints: Reinforces restorations to resist occlusal forces.
  • Selective Caries Removal: Focuses on preserving healthy dentin while removing only the infected areas.

Clinical Outcomes

Implementing Bioclear's approach has been associated with:

  • Enhanced Longevity: Durable restorations with increased resistance to wear.
  • Improved Patient Comfort: Reduced postoperative sensitivity and higher satisfaction.
  • Predictable Contact Points: Reliable proximal contacts that minimize food impaction.

Bioclear matrix system clinical photo showing cavity preparation Completed Class II restoration using Bioclear Method

Read the full article: Download PDF

Back to blog