Sectional Matrix Sytem (Tight Contact)

Poor Contact is commonly noted mishap in Cl II, MOD cavities eventually lead to food lodgment & recurrence of secondary caries as well to adjunct tooth therefore it extremely important to create Tight contact.

This topic will illustrate on :

  1. Selection of Matrix Band thickness, size & Height
  2. Selection of different types of Wedges
  3. Selection of Matrix Ring
  4. Role of Teflon
  5. Role of Resin Barrier