In Vitro Comparison of Four Resin Composite Matrix Systems.

Key Points

• To compare the effectiveness of four resin composite matrix systems in achieving optimal proximal contours and surface smoothness.
• Conducted in vitro experiments using different resin composite matrix systems.
• Utilized precontoured metal sectional matrices with rings for assessment.
• Evaluated the proximal contours and surface smoothness post-placement.
• Metal sectional matrices enhanced proximal contours and increased mesiodistal diameter.
• Improper placement led to distortion and compromised surface smoothness.