A Text-Book of Dental Pathology and Therapeutics, Including Pharmacology

A Text-Book of Dental Pathology and Therapeutics, Including Pharmacology

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1898 edition. Excerpt: ...In this test the pain is localized in the affected tooth, the touch of the instrument being followed by a recognition of posit-ion by the tactile organ of the tooth, the pericementum. The response of such teeth to thermal applications is increased, the absence of the non-conducting layer of enamel permitting a more rapid reduction of dentinal temperature, so that the reaction of the pulp is correspondingly increased. Dia.g'nosis.--The only dental pain with which dental hypersensitivity may be confounded is pulp-pain proper. The diagnostic feature of pulp-pain is the reaction to changes of temperature. It is quite possible for marked pulp-irritation, followed by active hyperaemia of that organ, to occur without the presence of caries in a tooth. In diagnosing the condition under discussion the guide is the sensation of the patient, search being first made in the region described by the patient as the seat of pain. The first observation is directed to the finding of carious cavities;-in the event of these being found, it is judged from the depth of the carious invasion whether there is a probability of pulp-disturbance. A differential test is made by contact of an instrument with the dentin, which, if hypersensitive, responds promptly. A drop of cool Water is next dropped from a syringe into the cavity, when, if the pulp be in abnormal condition, there will be a sharp twinge of pain. In progressive caries this latter response is of increasing promptness and severity, until when the pulp is in a state of active hyperaemia or inflammation the application of a drop of cold water is immediately followed by a paroxysm of throbbing pain. Observation is made to determine the presence of abraded surfaces exposing the dentin, and test by touch made....show more

Product details

  • Paperback | 200 pages
  • 189 x 246 x 11mm | 367g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236780345
  • 9781236780348