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120 THE MICRO-ORGANISMS OF THE HUMAN MOUTH:
which liavc been ast^igned for deeay of the teetli tlie followino;
are tj^e most important
1. Depraved juices accumulated in the teeth.
/ 2. Disturbances of nutrition.
/^. Infiammation.
y^' Worms.
^^^--^. Putrefaction.
6*- Chemical dissolution.
Ti, Parasites.
\j8. Electrolytic decomposition.
Jd. Diverse causes.
10. (Miemico-parasitic influences.
The Stagxation of Depraved Juices in the Teeth
was first designated by Hippocrates (456 B.C.) as tlie cause of
toothache.
Kraiitermann'" (1732) gives a similar explanation of caries:
" The teeth are corroded by the great influx of the lymphse acri-
oris. The fermento acri rodente in the hollow tooth reappears,
after being removed by the application of remedies."
This theory was held for many centuries. Bourdet"^ (1'^^'')
also accepted it : " When the juices contained in the vessels of
the teeth are too tliick, they stagnate, decay, and soon attack the
tooth."
Benj. P^ell (1787), Serre (1788), Kappis (1794), and others'^
accuse the juices carried to the teeth of playing an important
part in the origin of decay.*
Disturbances of Xutrition as Cause of Decay
are alluded to 1)V Galen (131 a.d.). He says, "The lack of
nutrition makes the teeth Aveak, thin, and brittle. An excess of
nutrition excites a kind of inflammation similar to that of the
soft parts." A deficiency of nourishment not only causes the
tooth to die away, but also enlarges the cavities. Crumbling, cor-
* A deiailed treatise of ihi; old literature (Jii diseases of the leeth is found in
Schienker"- and C;iralielli7-' From thrse ami.ors soin- •.! ilit- I'.illdwini;- relert-rm-es
were obtairn d.
120 THE MICRO-ORGANISMS OF THE HUMAN MOUTH:
which liavc been ast^igned for deeay of the teetli tlie followino;
are tj^e most important
1. Depraved juices accumulated in the teeth.
/ 2. Disturbances of nutrition.
/^. Infiammation.
y^' Worms.
^^^--^. Putrefaction.
6*- Chemical dissolution.
Ti, Parasites.
\j8. Electrolytic decomposition.
Jd. Diverse causes.
10. (Miemico-parasitic influences.
The Stagxation of Depraved Juices in the Teeth
was first designated by Hippocrates (456 B.C.) as tlie cause of
toothache.
Kraiitermann'" (1732) gives a similar explanation of caries:
" The teeth are corroded by the great influx of the lymphse acri-
oris. The fermento acri rodente in the hollow tooth reappears,
after being removed by the application of remedies."
This theory was held for many centuries. Bourdet"^ (1'^^'')
also accepted it : " When the juices contained in the vessels of
the teeth are too tliick, they stagnate, decay, and soon attack the
tooth."
Benj. P^ell (1787), Serre (1788), Kappis (1794), and others'^
accuse the juices carried to the teeth of playing an important
part in the origin of decay.*
Disturbances of Xutrition as Cause of Decay
are alluded to 1)V Galen (131 a.d.). He says, "The lack of
nutrition makes the teeth Aveak, thin, and brittle. An excess of
nutrition excites a kind of inflammation similar to that of the
soft parts." A deficiency of nourishment not only causes the
tooth to die away, but also enlarges the cavities. Crumbling, cor-
* A deiailed treatise of ihi; old literature (Jii diseases of the leeth is found in
Schienker"- and C;iralielli7-' From thrse ami.ors soin- •.! ilit- I'.illdwini;- relert-rm-es
were obtairn d.
