The case presents root resection technique, a surgical procedure that involves the removal of a root from multi-rooted tooth, typically a molar, to facilitate the long-term survival of the remaining tooth structure. This technique can be employed to resolve unique problems of endodontic failure, periodontal breakdown and restorative dilemmas that occur separately or in combination. This case concerns endodontic failure of an upper molar in conjunction with comprehensive restoration of adjacent teeth.