Abstract
There are situations where the subgingival margin of the restoration are unavoidable such as subgingival caries, fractures and resorption. The subgingival cavity margin creates various challenges during operative procedure and can affect periodontal health .Several restorative materials have been tried to restore cavities with subgingival margin. This paper will review the current approaches to the treatment of teeth involving root surfaces with caries, fractures, resorption and developmental defect with an objective to discuss clinical problems associated with deep subgingival margins and to have clear strategies of treatment approach in such situations.
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