Matrix Bands

• What is the primary function of a matrix band during restoration placement?

  Prevents teeth from bonding together
• How does a matrix band help with interproximal space?

  It maintains a contoured interproximal space
• Why is the contour created by the matrix band important?

  It helps match the original tooth anatomy
• What role does the matrix band play in packing restorative material?

  It allows for easier packing of material
• What does the matrix band create for the restorative material?

  A wall for packing the material
• Why is choosing the correct size of matrix band crucial?

  It ensures adequate marginal ridge formation
• What can happen if a restoration is proud due to incorrect matrix band size?

  It may cause fracture of the restoration
• What risk does a deficient restoration pose?

  It may allow food trapping and caries risk
• How does a wedge work with the matrix band?

  It presses the matrix band against the tooth
• What is the purpose of ensuring no overhanging margins?

  To prevent PRFs (periodontal risk factors)
• What advantage does a gap between contact points provide?

  It allows fitting of a polishing strip
• How does polishing the restoration affect plaque retention?

  It makes the restoration less plaque retentive
• What are the types of matrix bands available?

  • Autoclavable (Sequivand)
  • Single use (Omni-matrix)
• What is the primary function of a matrix band during restoration placement?

  Prevents teeth from bonding together
• How does a matrix band help with interproximal space?

  It maintains a contoured interproximal space
• Why is contour important in restoration placement?

  It helps match the original tooth anatomy
• What role does a matrix band play in packing restorative material?

  It allows for easier packing of material
• How does a matrix band create a wall for restorative material?

  It provides a surface to pack against
• Why is choosing the correct size of matrix band important?

  It ensures adequate marginal ridge formation
• What can happen if a restoration is deficient?

  It may allow food trapping and caries risk
• How does a wedge work with a matrix band?

  It presses the matrix against the tooth
• What is the benefit of preventing overhanging margins in restorations?

  It prevents potential periodontal issues
• How does a matrix band facilitate the use of polishing strips?

  It allows a gap between contact points
• What are the types of matrix bands available?

  • Autoclavable (e.g., sequivand)
  • Single use (e.g., omni-matrix)