Objectives: To systematically review the literature on the survival rate of deciduous molars in cases of agenesis of premolar successors.
Materials And Methods: Four electronic databases and partial grey literature were searched up to November 2020. The PECOS eligibility criteria included (P) second deciduous molar (E) exposed to agenesis of a premolar successor (O) evaluated by the survival rate in the oral cavity, infraocclusion, and root resorption through (S) observational studies.