Which practice supports accurate proximal contact restoration in a Class II preparation?

• A. Only relying on carving without matrix.
• B. Avoiding matrix altogether.
• C. Narrowing the contact intentionally.
• D. Correct width and contour via matrix and wedge to recreate contact.

Answer: (D)

Restoring the proximal contact accurately in a Class II prep relies on recreating the natural width and contour with a matrix setup. The matrix band provides a stable proximal wall against which the restorative material can be shaped, while the wedge tightens and adapts the band to reproduce the correct contact area and emergence profile. Carving without a matrix doesn’t recreate a true proximal wall, so the contact point won’t establish correctly. Avoiding the matrix altogether prevents forming a proper proximal contact, and intentionally narrowing the contact would worsen food impaction and disrupt harmony with adjacent teeth. Using the matrix and wedge to control width and contour gives a true, functional contact that resists separation and food lodging.