How to Polish Composite Restorations with Ultradent Diamond Polish Mint

By Ultradent Products, Inc. | Published: 2026-10-24

Category: How-to Guides

Learn the step-by-step process for achieving a high-gloss finish on composite restorations using Ultradent Diamond Polish Mint paste, including key checkpoints to avoid common mistakes.

Quick Answer

Use Ultradent Diamond Polish Mint paste with a soft brush or felt wheel at low speed to achieve a smooth, high-gloss finish on composite restorations without damaging the surface.

Why Diamond Polish Mint Works for Composites

Unlike standard polishing pastes that rely on aluminum oxide or silica, diamond polishing paste uses micron-sized diamond particles that cut efficiently and leave a mirror-like surface. The Ultradent Diamond Polish Mint formula is specifically designed for porcelain and composite restorations, making it a versatile choice for finishing both anterior and posterior composites.

One trade-off: because diamond particles are harder than the composite matrix, applying too much pressure or using a high-speed handpiece can generate heat and cause the composite to soften or discolor. Low speed and light pressure are essential.

Step-by-Step Polishing Process

Step 1: Prepare the Restoration Surface: Ensure the composite restoration is fully cured and free of excess flash. Use a fine finishing bur or silicone polisher to contour the surface if needed. Rinse and dry thoroughly. Checkpoint: A smooth, clean surface before polishing reduces the risk of trapping debris under the paste.
Step 2: Apply a Small Amount of Paste: Dispense a pea-sized amount of Ultradent Diamond Polish Mint onto a clean felt wheel, soft rubber cup, or goat hair brush. Do not dilute with water or alcohol—use the paste as-is. Common mistake: Using too much paste causes splatter and wastes material. Start small and add more only if needed.
Step 3: Polish at Low Speed with Light Pressure: Set your handpiece to 5,000–10,000 RPM. Apply the rotating instrument to the composite surface with light, intermittent pressure. Move in a circular or back-and-forth pattern for 10–15 seconds per area. Checkpoint: Excessive speed or pressure generates heat that can soften the composite and create a dull, hazy finish.
Step 4: Rinse and Inspect the Gloss: Rinse the restoration with water spray and air-dry. Examine under good lighting. If the surface appears matte or has swirl marks, repeat Step 3 with fresh paste. If the gloss is uniform, proceed to the final step. Common mistake: Skipping the inspection step can leave uneven areas that are difficult to fix once the patient leaves.
Step 5: Final Wipe and Check: Wipe the restoration with a dry cotton roll or gauze to remove any residual paste film. Confirm the high-gloss finish with a mirror. No additional sealant or glaze is required for most composites. Checkpoint: A residue-free surface ensures the patient does not experience a gritty texture or altered taste.

Product Used in This Guide

Ultradent™ Diamond Polish Mint-Diamond Polishing Paste: DENTAL PROFESSIONALS: The Ultradent Diamond Polish Mint paste is ideal for porcelain or composite restorations. See this award-winning product from Ultradent. This means you can use the same paste for both composite fillings and ceramic crowns, simplifying your polishing inventory.
Ultradent™ Diamond Polish Mint-Diamond Polishing Paste