. Electro-radiographic diagnosis; a book on the electric test for pulp vitality, giving the technic of its use in detail and submitting clinical evidence of its absolute necessity to dental diagnosis . ough the cotton were placed inactual contact with the enamel. This procedure of making the moisture contact willalso help the operator very much in cases of extremelynervous patients who always flinch in anticipation of painwhenever they feel the electrode touch the tooth, for theelectrode does not touch the tooth and the patient doesnot know when the connection is made, unless he is receiv-ing
. Electro-radiographic diagnosis; a book on the electric test for pulp vitality, giving the technic of its use in detail and submitting clinical evidence of its absolute necessity to dental diagnosis . ough the cotton were placed inactual contact with the enamel. This procedure of making the moisture contact willalso help the operator very much in cases of extremelynervous patients who always flinch in anticipation of painwhenever they feel the electrode touch the tooth, for theelectrode does not touch the tooth and the patient doesnot know when the connection is made, unless he is receiv-ing electrical sensation. *It must be conceded here that some Faradic machines give such a strong currentwith the plugs in L-R, and tJie sliding sheath clear in, that they are not amenable tothe expedient here suggested. Such machines do not make good pulp testers. 50 SPECIAL POINTS IN TECHNIC 51 Steady the Hand To make the imperfect, moisture contact, one muststeady the hand by supiDorting it with the fingers againstthe patients face or teeth. However, the hand manipu-lating the dental electrode should always be steadied inthis fashion whether one is making the moisture contactor ordinarv Fig. 24.—Moisture contact, not actual contact. Keep Teeth Moderately Dry The teeth being tested should be kept moderately dry;with cotton rolls Avhen neeessarj^. Otherwise the current 52 ELECTEO-EADIOGRAPHIC DIAGNOSIS may pass into the gum, pericemental membrane and ap-proximating teeth, through the saliva. The writer findsfrom experience it is not necessary to keep the teeth asdry as he at first supposed necessary. Cotton rolls arerarely necessary for upper teeth. For the lower teeth, instruct the patient to raise thetip of the tongue to the roof of the mouth, then placethe cotton roll and instruct the patient to forget aboutthe tongue. The cotton thus applied is as useful as ameans of keeping the tongue away from the teeth as tokeep them dry. Use plenty of cotton, tightly rolled, un
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectdiagnos, bookyear1921
