. The Dental cosmos. After. of the nose, and the upper lip. The noseitself is undeveloped, because the breath-ing is done through the mouth. The lackof development of the mandible ismarked; it does not perform its func-tions properly, and therefore does notdevelop. It is not possible for everytooth to do its work, since only the molars * [See also article by Dr. Baker in thepresent issue of the Cosmos, at page 063.—Ed.] 658 THE DENTAL COSMOS. and bicuspids of the mandible occludeperfectly. (See Fig. 5.) The upperright second bicuspid is in torsal occlu-sion, turned nearly half around, thusimpa
. The Dental cosmos. After. of the nose, and the upper lip. The noseitself is undeveloped, because the breath-ing is done through the mouth. The lackof development of the mandible ismarked; it does not perform its func-tions properly, and therefore does notdevelop. It is not possible for everytooth to do its work, since only the molars * [See also article by Dr. Baker in thepresent issue of the Cosmos, at page 063.—Ed.] 658 THE DENTAL COSMOS. and bicuspids of the mandible occludeperfectly. (See Fig. 5.) The upperright second bicuspid is in torsal occlu-sion, turned nearly half around, thusimpairing its own function and that of Fig. Before treating. its antagonist. All the six upper andlower anterior teeth have nothing toocclude with. The narrow arch does notafford sufficient room for the tongue andit is crowded back against the palateand tonsils, interfering with nasal breath-ing. It would have caused mouth-breath-ing even if there had been no nasalobstructions in the form of lymphoidtissue. In treating this case, the teethwere moved into proper occlusion ; eachtooth has its work to do and does arches have been expanded, improv-ing the shape of the face and allowingmore room for the tongue. (See Fig. 6.)The breathing is now normal, causing thenasal bones to develop. As air is takenin and expelled, it causes the muscles ofthe nose to expand and contract, drivingthe blood in and out, carrying food fordevelopment. (See Fig. 4.) EFFECTS OF NASAL OBSTRUCTION. Quoting Mr. Wright of Denver: Thischange of air-pressure must affect theair within the accessory sinuses, and inthem as well as in the nose a change ofpr
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectdentist, bookyear1912
