[Success factors in crown and root resection; a systematic literature review]

Based on 5 systematic literature reviews, 19 articles were analysed for 25 factors that could influence the success of root resections. Of these, 3 play a significant role: bone level during resection, finishing with an indirect restoration and bonding the treated tooth to an adjacent tooth. Patient- or practitioner-related factors were not demonstrated. Resections of upper and lower molars are equally successful, but removal of the palatal root and retention of the mesial root of the first lower molar have a significantly worse prognosis. Root resections mainly fail due to periodontitis or to a fracture. Failure due to periodontitis can more readily be prevented. Root resection following a fracture has the least chance of success.