DENS

bifid in the lower jaw but has three conical fangs in the upper jaw; there are six molars in each jaw, three on either side behind the premolars; in the deciduous denture there are but four molars in each jaw. d. multicus'pidus (pi. denies multicuspid i), d. molar is. d. per'- manens (pi. denies permanenles) [BNA], one of the thirty-two teeth belonging to the second or pemaanent denture; the eruption of the permanent teeth begins from the fifth to the seventh year and is not completed until the eighteenth to twenty-fifth year when the last of the wisdom teeth appears, d. premola'ris (pi. denies premolares) [BNA], premolar tooth, bicuspid, having a crown flattened from before backward with two tubercles or cusps on the grinding surface, and a flattened root, single in the lower jaw, bifid or furrowed in the upper jaw; there are four premolars in each jaw, two on either side between the canine and the molars; there are no premolars in the deciduous denture, d. sapien'tiae [L. sapient i a, wisdom], d. serotinus, d. seroti'nus (pi. denies seroiini) [BNA], late tooth, wisdom tooth, the third molar tooth on each side in each jaw; the wisdom teeth erupt late, from the eighteenth to the twenty-fifth year, and often decay early; the root fangs are often fused, the separation being marked only by grooves. d. sophronet'icus [G. sopkronelikos, prudent, sober], wisdom tooth, d. serotinus, d. succeda'neus (pi. denies succedanei) one of the teeth which replace the deciduous teeth after the latter have fallen out; an incisor, cuspid, or bicuspid.