The Dental cosmos . n whom, after an at-tack of the measles, necrosis of the jawshad supervened. It is to be observed,however, that this case is interestingfrom a pathological point of view, notfrom a teratological one. While the possibility of a congenital —CONGENITAL TOTAL ABSENCE OF THE PERMANENT TEETH. 92-5 absence of several teeth or of atrophy ofone or more primary follicles may be ad-mitted, it is, on the other hand, difficultto conceive that all of the fifty-two folli-cles of the first and second dentitionsshould disappear through similar is to be observed that the fif
The Dental cosmos . n whom, after an at-tack of the measles, necrosis of the jawshad supervened. It is to be observed,however, that this case is interestingfrom a pathological point of view, notfrom a teratological one. While the possibility of a congenital —CONGENITAL TOTAL ABSENCE OF THE PERMANENT TEETH. 92-5 absence of several teeth or of atrophy ofone or more primary follicles may be ad-mitted, it is, on the other hand, difficultto conceive that all of the fifty-two folli-cles of the first and second dentitionsshould disappear through similar is to be observed that the fifty-twotooth-follicles relate to several dissimilarlife-periods, and that the anomalies that from the neighboring teeth, and by dentalexostosis; these displacing the follicles,and eventually causing them to wasteaway entirely. In Julius Scheffs work, Handbuchder Zahnheilkunde, no case of total ab-sence of the permanent teeth is men-tioned, but on page 408 we find thatthree cases are cited, being credited to Fig. may occur at any one period cannotconsequently exert any influence on theothers. It is for this reason that wewould feel inclined to question the valueof any report of cases of congenital totalabsence of the teeth, except when sub-stantiated by a careful scientific investi-gation. The pathologic causes of complete ab-sence of the permanent teeth may beeither traumatic—such as fractures of thejaws—or constitutional diseases such asrhachitis or syphilis; also destructive in-flammation of the maxillae (osteomyeli-tis) or in the tooth-follicles, or degen-erative processes in the follicles—as, forinstance, follicular tooth-cysts. The den-ture may be completely destroyed by tu-mors— sarcomas and cysts—arisingvol. xlix.—68 Fricke of Liineburg, in which the decid-uous teeth persisted until the ages of six-teen, eighteen, and twenty years respect-ively, when upon their being shed thepermanent teeth erupted—thus showingthat their appearing had been prevente
Size: 1626px × 1537px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthor, bookcentury1900, bookdecade1900, booksubjectdentistry
