Principles and practice of operative dentistry . Fig. 270.—Section of human molar, showing caries of enamel following a fissure. > 95. Dentinal tubu]i entering the enamel. Caries follow-^^WPj ing crack inenamel Enamel Fig. 271.—Caries following crack in enamel. )s 95. DENTAL CARIES. 149 Irregularities in the Arrangement of the Teeth.—Teeth which areirregular in their arrangement in the arch, no matter how perfect they may-be in structure and form, have a much greater predisposition to caries thanthose which have a normal arrangement. Nature in constructing the typical dental organs of man a
Principles and practice of operative dentistry . Fig. 270.—Section of human molar, showing caries of enamel following a fissure. > 95. Dentinal tubu]i entering the enamel. Caries follow-^^WPj ing crack inenamel Enamel Fig. 271.—Caries following crack in enamel. )s 95. DENTAL CARIES. 149 Irregularities in the Arrangement of the Teeth.—Teeth which areirregular in their arrangement in the arch, no matter how perfect they may-be in structure and form, have a much greater predisposition to caries thanthose which have a normal arrangement. Nature in constructing the typical dental organs of man and arrangingthem in the perfect arch, placed them in the best possible condition towithstand the action of those destructive agencies which continually sur-round them. Any deviation from this perfection of form and arrangementmust, therefore, necessarily predispose the teeth to be acted upon by theseagencies, while the degree of predisposition will be largely controlled bythe character and degree of the irregularity in form and position. By malarrangement of the teeth certain of their surfaces are renderedvery difficult or well-nigh impossible to cleanse by natura
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectdentist, bookyear1920
