. The science and practice of dental surgery. l con-comitant of the nasal stenosLs that causes thenarrow and deep maxilla. J. Sim Wallace (162)advances the view that the obliquity of angle iscaused by insufficient use of the masseter andinternal pterygoid muscles m mastication, associ-ated with an abnormally posterior position ofboth arches due to insufficient use and develojD-ment of the tongue in mastication. He pointsout that in a well-developed jaw the mandibleis widened and everted by deposition of bonearound the insertion of the masseter at theangle, and along the lower and outer border,
. The science and practice of dental surgery. l con-comitant of the nasal stenosLs that causes thenarrow and deep maxilla. J. Sim Wallace (162)advances the view that the obliquity of angle iscaused by insufficient use of the masseter andinternal pterygoid muscles m mastication, associ-ated with an abnormally posterior position ofboth arches due to insufficient use and develojD-ment of the tongue in mastication. He pointsout that in a well-developed jaw the mandibleis widened and everted by deposition of bonearound the insertion of the masseter at theangle, and along the lower and outer border,and that where function is deficient the obliquitynormal to infancy is maintamed; in that casethe second lower molar erupting behind thealready retruded arch must find room for itseruption by a raising of the alveolus, andanterior open bite is the necessary result. SimWallace states that the condition usuallydevelops rapidly at the time of eruption of period, consequent on discomfort attendant oneruption of the molars. He believes that rapid.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectdentistry, bookyear19
