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212 OPERATIVE DENTISTRY
resulting, many times, in the death of that organ. While the pulp
is profoundly affected by abnormal exposure to heat and cold it is
eminently essential to its normal physiological existence that it re-
ceive the stimulating effects of the ranges of temperature usually
found in food and drink while covered with the entire tooth.
Peripheral Nerve Irritation may bring about reparative conges-
tion within the pulp causing excessive tissue waste and a precipita-
tion of lime salts within the pulp. There are two classes of these
deposits, known as calcific degeneration and pulp nodules, the latter
being the sequela of peripheral irritation, while calcific degeneration
is the result of little local passive hyperemias with its cause related
to abnormal thermal changes.
The Irritation May Be in the terminal fibers of the nerves within
the pulp where the nodules are found, or in an approximating tooth,
or in a tooth in the same lateral half of the jaw or face. Cases are
reported where it is evident that the cause is even more remote than
has been stated, it l)eing a local expression of a general neurotic con-
dition.
The Requirements of a Devitalizing- Ag-ent are
First. That the present and future health of adjacent tissues be
maintained.
Second. That it act painlessly.
Third. That the dentine is not discolored.
Fourth. That devitalization be accomplished promptly, resulting
in a saving of time to both the patient and operator.
The Methods of Pulp Devitalization practiced at this time are
two : Surgical amputation while anesthetized and poisoning by the
application of arsenic trioxide.
To Determine the Method to employ in any given case requires
an understanding of the pulp presented, its immediate surroundings,
and results sought. Also the time at the disposal of patient and
operator. While each of the two methods has its advantages, either
can be so used as to meet the requirements of a satisfactory means of
devitalization.
Anesthetization of the Pulp is accomplished l)y forcing into the
pulp either a solution of cocaine hydrochloride or novocain popularly
known as "pressure anesthesia."
Anesthetization Is Indicated:
First. When it is desired to remove a normal pulp.
Second. When slight exposure of the pulp exists which has not
yet reached the stage of passive hyperemia.
212 OPERATIVE DENTISTRY
resulting, many times, in the death of that organ. While the pulp
is profoundly affected by abnormal exposure to heat and cold it is
eminently essential to its normal physiological existence that it re-
ceive the stimulating effects of the ranges of temperature usually
found in food and drink while covered with the entire tooth.
Peripheral Nerve Irritation may bring about reparative conges-
tion within the pulp causing excessive tissue waste and a precipita-
tion of lime salts within the pulp. There are two classes of these
deposits, known as calcific degeneration and pulp nodules, the latter
being the sequela of peripheral irritation, while calcific degeneration
is the result of little local passive hyperemias with its cause related
to abnormal thermal changes.
The Irritation May Be in the terminal fibers of the nerves within
the pulp where the nodules are found, or in an approximating tooth,
or in a tooth in the same lateral half of the jaw or face. Cases are
reported where it is evident that the cause is even more remote than
has been stated, it l)eing a local expression of a general neurotic con-
dition.
The Requirements of a Devitalizing- Ag-ent are
First. That the present and future health of adjacent tissues be
maintained.
Second. That it act painlessly.
Third. That the dentine is not discolored.
Fourth. That devitalization be accomplished promptly, resulting
in a saving of time to both the patient and operator.
The Methods of Pulp Devitalization practiced at this time are
two : Surgical amputation while anesthetized and poisoning by the
application of arsenic trioxide.
To Determine the Method to employ in any given case requires
an understanding of the pulp presented, its immediate surroundings,
and results sought. Also the time at the disposal of patient and
operator. While each of the two methods has its advantages, either
can be so used as to meet the requirements of a satisfactory means of
devitalization.
Anesthetization of the Pulp is accomplished l)y forcing into the
pulp either a solution of cocaine hydrochloride or novocain popularly
known as "pressure anesthesia."
Anesthetization Is Indicated:
First. When it is desired to remove a normal pulp.
Second. When slight exposure of the pulp exists which has not
yet reached the stage of passive hyperemia.
