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| Figure 1. Preoperative photo of the failing composite resin restoration in tooth No. 30. |
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| Figure 2. Protection (Wedge Guard [Triodent Corporation]) of the gingiva and adjacent tooth was placed before the preparation began. |
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| Figure 3. Bur marks that were observed in the metal (distal) demonstrated damage that may have otherwise occurred on the adjacent tooth surface during preparation. |
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| Figure 4. Initial removal of the protection shield. |
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| Figure 5. Completed removal. |
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| Figure 6. A sectional matrix (V3 Ring Sectional Matrix System [Triodent]) was placed. |
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| Figure 7. Composite resin (KALORE [GC America]) placed in the cavity preparation; the sectional matrices were removed. |
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| Figure 8. The final restoration; completed with no damage to the adjacent tooth or the gingival structures. (Note: The wave wedges were kept in place until after all of the finishing was completed to facilitate proper interproximal finishing.) |