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198 OPERATIVE DENTISTRY
complied with the request and advise him as to the work accom-
plished. All this instills confidence into the patient as to the den-
tist knowing what he is about and as to his knowledge of the place
and time that pain may be expected. Nothing unnerves a patient
so much as to get the slightest idea that the dentist is not aware of
the pain he is inflicting or that he has little care for one's sufferings
and has no definite idea as to when it will end.
The True Simulator of Pain will try to make the operator believe
he is causing pain when he is not suffering at all, with the idea that
the dentist will be frightened into extreme care in his case. This
class is easily detected by scraping an instrument on a surface where
pain is impossible, as the external surface of a tooth. If the demon-
strations continue it is the operator's duty to inform the patient
of the detection of the attempted deception and that such will not
be further considered, at the same time advising him to save his
demonstrations until he is hurt when they will be considered, and
every effort made to lessen the pain.
The Agents for Relief of Sensitive Dentine are
First—Those which produce a physical change in the contents of
the tubuli, as desiccation, heat and cold.
Second—Those agents w^hich destroy or disorganize the contents
of the tubuli, as caustics and escharotics.
Third—Those agents which, when applied, to the dentine, locally
or hypodermically produce a condition of analgesia or absence of
sensibility to pain, termed local anesthetics, and anodynes as phenol,
menthol, morphine, oil of cloves, cocaine and novocain.
Fourth—Those agents administered with the view of reaching the
nerves of the pulp through the general system as bromide of potas-
sium, nitrous-oxide chloroform, etc.
Fifth—The mechanical condition under which the cutting of sen-
sitive dentine is done.
Physical Agents.
Desiccation Is a Physical Agent of great virtue in alleviating
hypersensitive dentine and accomplishes the result by extracting the
moisture from the tubuli, which is a large constituent of the proto-
plasm.
This Is Best Accomplished by first flooding the cavity with ab-
solute alcohol which has an affniity for water, and then directing into
the cavity a continuous stream of warm air which is more effective
if the temperature can be controlled so as to gradually raise it to
the highest point tolerable to the patient. Painless cavity excava-
198 OPERATIVE DENTISTRY
complied with the request and advise him as to the work accom-
plished. All this instills confidence into the patient as to the den-
tist knowing what he is about and as to his knowledge of the place
and time that pain may be expected. Nothing unnerves a patient
so much as to get the slightest idea that the dentist is not aware of
the pain he is inflicting or that he has little care for one's sufferings
and has no definite idea as to when it will end.
The True Simulator of Pain will try to make the operator believe
he is causing pain when he is not suffering at all, with the idea that
the dentist will be frightened into extreme care in his case. This
class is easily detected by scraping an instrument on a surface where
pain is impossible, as the external surface of a tooth. If the demon-
strations continue it is the operator's duty to inform the patient
of the detection of the attempted deception and that such will not
be further considered, at the same time advising him to save his
demonstrations until he is hurt when they will be considered, and
every effort made to lessen the pain.
The Agents for Relief of Sensitive Dentine are
First—Those which produce a physical change in the contents of
the tubuli, as desiccation, heat and cold.
Second—Those agents w^hich destroy or disorganize the contents
of the tubuli, as caustics and escharotics.
Third—Those agents which, when applied, to the dentine, locally
or hypodermically produce a condition of analgesia or absence of
sensibility to pain, termed local anesthetics, and anodynes as phenol,
menthol, morphine, oil of cloves, cocaine and novocain.
Fourth—Those agents administered with the view of reaching the
nerves of the pulp through the general system as bromide of potas-
sium, nitrous-oxide chloroform, etc.
Fifth—The mechanical condition under which the cutting of sen-
sitive dentine is done.
Physical Agents.
Desiccation Is a Physical Agent of great virtue in alleviating
hypersensitive dentine and accomplishes the result by extracting the
moisture from the tubuli, which is a large constituent of the proto-
plasm.
This Is Best Accomplished by first flooding the cavity with ab-
solute alcohol which has an affniity for water, and then directing into
the cavity a continuous stream of warm air which is more effective
if the temperature can be controlled so as to gradually raise it to
the highest point tolerable to the patient. Painless cavity excava-
