Principles and practice of operative dentistry . nsiderably, so that their extraction is often a difficult operation. Occa-sionally the tooth may have three or more roots. The pulp-canal is sometimes single, but usually it is divided. The canalsare, as a rule, difficult to enter on account of the location of the tooth, thegenerally small size of the canals, and the almost certain distal curvatureof the roots. The average length of the inferior third molar is inch ( centi-metres), of the crown inch ( centimetre), and of the root inch( centimetre). THE DECIDUOUS TEETH.
Principles and practice of operative dentistry . nsiderably, so that their extraction is often a difficult operation. Occa-sionally the tooth may have three or more roots. The pulp-canal is sometimes single, but usually it is divided. The canalsare, as a rule, difficult to enter on account of the location of the tooth, thegenerally small size of the canals, and the almost certain distal curvatureof the roots. The average length of the inferior third molar is inch ( centi-metres), of the crown inch ( centimetre), and of the root inch( centimetre). THE DECIDUOUS TEETH. The deciduous teeth resemble in every way the same class of teeth in thepermanent set, with the exception of the first molars. They are, however,all much smaller than the permanent teeth, and are much whiter in color. The incisors and cuspids of both jaws are similar in form to the teethwhich succeed them. The cervix, however, is more constricted, and theenamel ends more abruptly. The process of resorption of the roots of the Disto-lingual cus. Disto-buccal cusp FlG. 81.—Inferior right third molar, distal surface. (Enlarged.) Disto-lingual cusj ])i>tn hueeal cus
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectdentist, bookyear1901
