How should restoration contours be verified after finishing?

• A. Visual inspection alone.
• B. Radiographs to check contours.
• C. Check occlusion, smoothness of margins, and proximal contacts using floss and articulation.
• D. Check only the occlusion.

Answer: (C)

The key idea is to verify that a finished restoration sits and integrates well in three dimensions: how it contacts the opposing teeth (occlusion), how its margins meet the tooth structure (smoothness and fit), and how it relates to the adjacent tooth (proximal contacts). Checking all three ensures the restoration functions, cleans easily, and preserves periodontal health.

For occlusion, assess how the restoration contacts during biting and in multiple jaw positions. Use articulation or your patient’s bite to detect high spots or premature contacts and adjust so the contacts are even and in the intended pattern, without rocking or interferences.

Margin smoothness is about the edge where the restoration meets the tooth. The margin should be continuous, flush, and smooth to the feel and visually seamless, with no overhangs or rough areas that could trap plaque or irritate the gingiva. Finishing all around the margin helps prevent food and bacteria from accumulating.

Proximal contacts ensure there is a proper barrier to food impaction and space maintenance for the neighboring tooth. Using floss to test the contact lets you feel if the contact is snug enough to prevent food from passing through while still allowing easy floss passage if the contact is meant to be open for cleaning between teeth. This also verifies the contact position and the interdental contour.

Radiographs and visual inspection alone don’t reliably confirm these interactive aspects. Radiographs can show general contours but rarely reveal fine margin smoothness, exact proximal contact quality, or dynamic occlusion. By combining occlusion assessment with checking margin smoothness and proximal contacts using floss and articulation, you get a comprehensive and reliable verification of the restoration’s contour.