Page 14 - My FlipBook

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Parasitic Tijeory of Denial Deca} . 132
Electrical Theory of Decay . 135
Diverse Causes of Caries . . 144
CHAPTER VII.
Original Ixvestigations on the Decay of the Teeth 146
Introductory Remarks on the Histology and Chemistry of the Teeth 146
Chemical Composition of the Hard Dental Substance 148
Physical Phenomena of Dental Decay 151
(a. Decay of Enamel 151
b. Decay of Dentine 153
c. Decay of the Cement . 155
d. Decay of the Enamol-Cuticle 156
r- Accompanying Phenomena of Dental Decay 156
1. Transparency of the Tissue in Dental Decay 156
^
V 2. Pigmentation of the Tissue in Dental Decay 162
r Chemical Changes attending Decay of the Teeth 163
Microscopical Phenomena of Decay . 165
/2. Decay of Enamel .... 166
\/l. Decay of the Enamel-Cuticle . 165
a. Preparation of Specimens 166
3. Decay of Dentine .... 168
b. Appearances under the Microscope
^ 171
a. Preparation of Specimens 171
b. Methods of Staining 173
c. Appearances under the Microscope 175
Thickening of Neumann's Sheath
^ i. Decay of Cement .... 188
193
Artificial Decay .... . 194
Decay of Teeth worn on Plates
V^ Caries of Animal Teeth .... 199
194
Spontaneous Healing of Dental Decay 202
CHAPTER V U 1.
Etiology or Dental Decay 205
The Micro-Organisms of Dental Decay 214
Predisposing Causes of Dental Caries 216
Influence of Civilization on Decav 218
CHAPTER IX.
Prophylaxis or Dental Decay ..... 223

The Use of Antiseptics in the Pro])hylactic Treatment of Deca 225
The Action of Tobacco upon the Teeth .... 237
The Antiseptic Action of Filling-Materials
246
The Sterilization of Teeth for the Purpose of Implantation 247