. 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 . Fig. Z7.—Applying the electrode to the lingual surface of a lower anterior tooth. SPECIAL POINTS IN TECHNIC 71 ^^^0^^^ -^^^ ^H I^F *:#^ .,^ > * M ^ f < / j^ V Fig. 38.—Applying the electrode to the buccal surface of a lower left posteriortooth. Note the cotton roll under the tongue. There is also a small roll of cottonin the vestibule of the mouth. The mouth mirror is used to retract th

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. 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 . Fig. Z7.—Applying the electrode to the lingual surface of a lower anterior tooth. SPECIAL POINTS IN TECHNIC 71 ^^^0^^^ -^^^ ^H I^F *:#^ .,^ > * M ^ f < / j^ V Fig. 38.—Applying the electrode to the buccal surface of a lower left posteriortooth. Note the cotton roll under the tongue. There is also a small roll of cottonin the vestibule of the mouth. The mouth mirror is used to retract the cheek. 72 ELECTRO-RADIOGRAPHIC DIAGNOSIS. Fig. 39.—Applying the electrode to the lingual surface of a lower left posteriortooth. Cotton under the tongue and in the vestibule of the mouth. Here the mouthmirror is used to reflect light onto the field of operation; the middle finger of theleft hand retracts the cheek. SPECIAL POINTS IN TECHNIC 73

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Keywords: ., bookcentury1900, bookdecade1920, booksubjectdiagnos, bookyear1921