. The science and practice of dental surgery. Fig. 174.—Postplacement and rotation of upper incisors due to very deficientanterior development. Post-normal occlusion of lower molars andmandible, probably secondary to maxillary development. (NormanG. Bennett.) mcisors to the second molars is reduced verynearly to a straight line. In a similar mannerin the case of the lower teeth, imbrication of4* Portrait of case shown in Fig. portion of the lower jaw produced in this way isoften associated with a contracted upper arch ; afan-sliaf)ed condition of thelower incisors may be somewhataccentuated by
. The science and practice of dental surgery. Fig. 174.—Postplacement and rotation of upper incisors due to very deficientanterior development. Post-normal occlusion of lower molars andmandible, probably secondary to maxillary development. (NormanG. Bennett.) mcisors to the second molars is reduced verynearly to a straight line. In a similar mannerin the case of the lower teeth, imbrication of4* Portrait of case shown in Fig. portion of the lower jaw produced in this way isoften associated with a contracted upper arch ; afan-sliaf)ed condition of thelower incisors may be somewhataccentuated by the same deformities described maybe connected with (or in thelater stages of their develop-ment be increased by) obstruc-tion to nasal breathing fromadenoids, or other nasal diseasesor deformity; but it is probablethat such cases are almostalways associated with abnor-mal occlusion and relationshipof the two jaws, and constitutethe various forms of protrusionand retrusion to be presentlyconsidered. The typical V-shaped arch, so
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectdentistry, bookyear19
