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Class II Restorations: Systematic Matrix Selection and Proximal Contact Troubleshooting

1 hour 5 minutes 1 hr CPD/CE

A structured framework for troubleshooting Class II restorations, focused on matrix systems rather than materials. Dr Sornsiri Phoochitpakorn shows how band contour, wedge selection and separating rings shape the proximal contact, including modified-wedge and no-wedge PTFE techniques for sub-gingival cases.

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Lecture preview A short clip from the full 1 hour 5 minutes lecture
About this lecture

Class II Restorations: Systematic Matrix Selection and Proximal Contact Troubleshooting

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.

What you'll learn

Learning Aims & Objectives

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

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Your lecturer

Meet Dr Sornsiri Phoochitpakorn

Dr Sornsiri Phoochitpakorn

Dr Sornsiri Phoochitpakorn

Thailand

Dr Sornsiri Phoochitpakorn graduated from Chang Mai University in Thailand in 2018. Fresh out of university, he started his journey as an instructor at Suranaree University of Technology in Korat for a year. In 2019, he decided to further his training and gained experience working in the private sector. Exploring various fields of dentistry, he discovered his passion for Biomimetic…

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The Hybrid Layer Ltd Nationally Approved PACE Program Provider for FAGD/MAGD credit.
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10/1/2025 to 9/30/2027.
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