. The teeth in health and disease . Fig. 3G.—a. Upper CanineTooth with badly formedenameL Fig. 36.—b. Section of aMolar showing a fault or fis-sure in the enamel (a) causedby imperfect fissures are frequentlythe starting point of decay. Neglect of the temporary teeth is a pregnantcause of the decay of the permanent set. Theprocess of shedding the temporary teeth ex-tends over a period of six years. Under normalconditions the appearance of its permanentsuccessor is simultaneous with the falling outof the temporary tooth, and owing to the orderin which the temporary teeth are s


. The teeth in health and disease . Fig. 3G.—a. Upper CanineTooth with badly formedenameL Fig. 36.—b. Section of aMolar showing a fault or fis-sure in the enamel (a) causedby imperfect fissures are frequentlythe starting point of decay. Neglect of the temporary teeth is a pregnantcause of the decay of the permanent set. Theprocess of shedding the temporary teeth ex-tends over a period of six years. Under normalconditions the appearance of its permanentsuccessor is simultaneous with the falling outof the temporary tooth, and owing to the orderin which the temporary teeth are shed temporaryand permanent teeth stand side by sidein thesame mouth, in certain positions, for severalyears. The permanent lateral incisor is eruptedduring the eighth year: the temporary canineis not lost until the thirteenth year, and thus 7^. Fig. 37. Fig. 37 shows the Upper Jaw of a child five years of age, thetemporary lateral incisors (n b), the canines (c c), and the posteriormolars (e e) are decayed. these teetli remain in close contiguity to eachother for a period of four years. The first


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Keywords: ., bookcentury1900, bookdecade1900, bookpublisherlondo, bookyear1902