A practical treatise on the technics and principles of dental orthopedia and prosthetic correction of cleft palate . eems to be too muchtooth tissue, as in addition two rudimentary fourth molars can also be would the non-extractor do with these two teeth? Would he endeavor toplace them in their regular position, as shown in the illustration Fig. 23, or wouldhe not rather acknowledge that these teeth should be extracted because theyinterfere with the general hygiene of the mouth? Fig. 20 is a lateral view of the left picture of Fig. 19. The teeth are in occlu-sion with its mate, the l
A practical treatise on the technics and principles of dental orthopedia and prosthetic correction of cleft palate . eems to be too muchtooth tissue, as in addition two rudimentary fourth molars can also be would the non-extractor do with these two teeth? Would he endeavor toplace them in their regular position, as shown in the illustration Fig. 23, or wouldhe not rather acknowledge that these teeth should be extracted because theyinterfere with the general hygiene of the mouth? Fig. 20 is a lateral view of the left picture of Fig. 19. The teeth are in occlu-sion with its mate, the lower jaw. It has been claimed by many that if the 74 FART III. BASIC FRIXCIPLES OF PRACTICE molars or bicuspids be properly locked, the other teeth would be in good writer cannot agree with these two assertions. The illustration before us showsthat the first and second molars of each jaw are typical in occlusion as well as thebicuspids. (The molars and bicuspids on the opposite side are in equally goodocclusion.) If the above rules are to be followed, then the canine and incisor IG. ?_().. Upper and lower jaws in occlusion. teeth should be correct, but they are not to be found so in the skull from whichthis illustration was taken. The incisors are in occlusion, edge to edge, insteadof the upper one overlapping the lower one. A large amount of tooth tissue wasshown in the upper jaw, and a large quantity in proportion in the lower jaw. Inorder to have had proper occlusion it would have been necessary to have lost toothtissue laterally, in the lower jaw. If this be granted, then the question arises,when should it have been lost, and what tooth or teeth should have been extracted? Characteristic Features of Caucasian and Negro Skulls Fig. 21.
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