Adolescent Adult Aged Analgesics--therapeutic use Calcium Compounds--therapeutic use Calcium Sulfate--therapeutic use Child Dental Cements--therapeutic use Epoxy Resins--therapeutic use Female Follow-Up Studies Glass Gutta-Percha--therapeutic use Humans Male Middle Aged Molar--pathology Pain--drug therapy Pain Measurement Polyvinyls--therapeutic use Pulpitis--therapy Pulpotomy--methods Root Canal Filling Materials--therapeutic use Root Canal Preparation--methods Root Canal Therapy--methods Treatment Outcome Young Adult Zinc Oxide--therapeutic use