<prompt> The reverse three quarter crown with complete coverage of the facial surface is used for:Mandibular molars with severe lingual inclinationMolars with destructed facial surface, but intact lingual surfaceBothNone  <response>: The reverse three-quarter crown, with complete coverage of the facial surface, is used only occasionally and is usually reserved for one or two situations:It is ideal for restoration of mandibular molars that are severely inclined lingually, andIt can also be used on molars that have suffered destruction of the facial surface, but not of the lingual. 