. Dental ids, Iowa. The Bonwill system of grinding and widening the spacebetween the cusps of the bicuspids and molars in artificialteeth for the lateral movement of the lower jaw, is very es-sential for persons of certain temperaments. Those of san-guine and sub-sanguine temperaments rotate their jaw in mas-ticating, the occlusion is only moderately firm, therefore it THE DENTAL SUMMARY 327 is necessary to have a free lateral movement of the jaw with-out the cusps interfering. In the lymphatic and sub-lymphatictemperaments the occlusion is generally loose and flat withshort cusps. T
. Dental ids, Iowa. The Bonwill system of grinding and widening the spacebetween the cusps of the bicuspids and molars in artificialteeth for the lateral movement of the lower jaw, is very es-sential for persons of certain temperaments. Those of san-guine and sub-sanguine temperaments rotate their jaw in mas-ticating, the occlusion is only moderately firm, therefore it THE DENTAL SUMMARY 327 is necessary to have a free lateral movement of the jaw with-out the cusps interfering. In the lymphatic and sub-lymphatictemperaments the occlusion is generally loose and flat withshort cusps. The Bonwill system of grinding and shaping the cuspsfor a free lateral movement of the jaw in the use of artificialteeth is very important for the sanguine, lymphatic and theirsub-temperaments, especially the sanguine. Persons of ner-vous and sub-nervous, bilious and sub-bilious temperamentshave but little lateral movement of the jaw in masticating;the occlusion is generally firm and close with long cusps. Editorial. WHAT IS A DENTISTS DUTY? Recently there appeared in one of the New York dailiesan article that ran as follows: I wish tomorrow were over, said a dentist on Friday night,for Saturday is childrens day and by night I havent a nerve inmy make-up that isnt on edge. The children invariably cry, butIm accustomed to that. If that was all they did I wouldnt mind,but they bite down on my fingers, wriggle all over the chair, andwhat is worse, they romp about the office and make life miserable forthe patient in the chair. If I were beginning my practice overagain I wouldnt touch a child. I cant stop now without losingsome of my best patients. As deplorable as it may seem to conscientious dentists,the above but expresses the sentiments of many a dentist ofthe present day and generation. They do not care to workfor children for they cry, and wriggle about in the chair, andbite down on the dentists fingers, or romp about the dental work for the children is discouraged;
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