A practical treatise on the technics and principles of dental orthopedia and prosthetic correction of cleft palate . Fig. 104 PART IV. TECHNIC PRINCIPLES OF PRACTICE It is not necessary to multiply descriptions of methods relative to other teethand conditions where the important principles of inclination movements may beemployed, further than to say that whenever it is desired to avoid producing anabnormal inclination of the crowns of teeth in the direction of the applied power,it is nearly always possible to take advantage of some effective mechanical prin-ciple. On the other hand, when
A practical treatise on the technics and principles of dental orthopedia and prosthetic correction of cleft palate . Fig. 104 PART IV. TECHNIC PRINCIPLES OF PRACTICE It is not necessary to multiply descriptions of methods relative to other teethand conditions where the important principles of inclination movements may beemployed, further than to say that whenever it is desired to avoid producing anabnormal inclination of the crowns of teeth in the direction of the applied power,it is nearly always possible to take advantage of some effective mechanical prin-ciple. On the other hand, whenever in the movement of a crown under the appli-cation of a single force, it is desired to move the root in the opposite direction, theforce should be applied as near as possible to the occluding border. This is espe-cially true in cases of protruding crowns of the superior incisors, with a retrusionof the roots; of which the common cause is thumb-sucking—the teeth often as-suming a decided labial inclination, with the production of a depression along theupper portion of the upper lip. Power in Relation to the Possibili
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Keywords: ., bookcentury1900, bookdecade1920, bookidpracticaltre, bookyear1921
