Dental Gingival extension for a restoration should be: A At the gingival crest B At Least 1mm above the alveolar crest C At Least 3mm above the alveolar crest D Doesn't have any relation with alveolar crest height 💡 Explanation Gingival extension for a restoration should be: ✓ Correct Answer: C. At Least 3mm above the alveolar crest