Class II Restorations:
Systematic Matrix Selection and Proximal Contact Troubleshooting.

Class II Restorations: Systematic Matrix Selection and Proximal Contact Troubleshooting.

presented by:
Dr Sornsiri Phoochitpakorn

Dr Sornsiri Phoochitpakorn returns to The Hybrid Layer to present a structured framework for troubleshooting Class II restorations. Focusing on matrix systems rather than restorative materials, he breaks down how band contour, wedge selection, and separating rings interact to determine proximal contact form and gingival adaptation. Through clear clinical rules, diagrams, and step-by-step case examples, Dr Sornsiri shows how to tailor matrix selection to interproximal distance, gingival margin position, and cavity floor anatomy. He also explores advanced strategies for challenging sub-gingival cases, including modified wedges and pure PTFE no-wedge techniques. Dr Sornsiri provides a predictable, repeatable approach to achieving reliable proximal contacts in even the most challenging Class II situations.

Aims & Objectives:

1) Understand how interproximal distance, gingival margin type, and cavity floor depth determine optimal band and wedge selection in Class II restorations.
2) Learn how to prevent food impaction by prioritising proximal contour rather than contact tightness.
3) Identify practical strategies for managing wide, narrow, and sub-gingival Class II cavities using conventional, modified, and PTFE-based matrix techniques.
4) Apply a systematic troubleshooting approach to achieve predictable proximal contacts and gingival adaptation in complex Class II cases.

Lecture Duration: 1 hour 5 minutes.

Audio language: English.
Subtitles: English, Español. Learn more about verified subtitles.

Preview:

• Available Worldwide.
• Watch and rewind as often as you require.
• Internet connection required.
• 1 Hour of Verifiable Continuing Professional Development awarded with a personalised certificate.
• Course release date: 2026.
• No conflicts of interest declared.
• GDC Developmental Outcome Achieved: C
• AGD Subject Code: 250 – Operative (Restorative) Dentistry

Date content was last reviewed: 27 March 2026.
Date of next scheduled content review: 01 July 2026.

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10/1/2025 to 9/30/2027.
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