The Dental cosmos . Showing, at a, theformation of a free no-dule in the perice-mentum. Nat. size.(From a specimen pre-sented by ZahnarztDieck.) \$6 THE DENTAL COSMOS, arise perfectly regular, parallel, wavy tubules, which we cannot wellavoid classing as dentinal tubules. A similar phenomenon may he repeatedly observed in all patholog-ical professes in connection with the tusks of elephants. For exam-ple, In the abscess represented in Fig, 58 we have on one side of the /oin- c an exceedingly Irregular conglomerate of various calcific tis-sues, on the other side perfectly regular dentine, while
The Dental cosmos . Showing, at a, theformation of a free no-dule in the perice-mentum. Nat. size.(From a specimen pre-sented by ZahnarztDieck.) \$6 THE DENTAL COSMOS, arise perfectly regular, parallel, wavy tubules, which we cannot wellavoid classing as dentinal tubules. A similar phenomenon may he repeatedly observed in all patholog-ical professes in connection with the tusks of elephants. For exam-ple, In the abscess represented in Fig, 58 we have on one side of the /oin- c an exceedingly Irregular conglomerate of various calcific tis-sues, on the other side perfectly regular dentine, while the zone itself Kic Prom .1 lection of the nodule a (Fiff. 67), thowlnj the formation of appearances resembling dentinal tubules, bj the pericementum. 70 : 1. is almost structureless. How to account lor this sudden appearanceof tubules is the most difficult problem connected with the study ofpulp-nodules. As already stated above, llohl easily disposes of the question byassuming that new odontoblasts may arise in any part of the pulp ;Bruck, by the assertion that true dentine may be formed by any cellof the pulp whatever ; particularly the stellate cells are claimed to beoften concerned in the production of nodules. Witzel assigns to the spindle-cells the power to form tubules, andWeil transforms the spindle-cells into odontoblasts and finds, in con- ANATOMY AND PATHOLOGY OF THE TUSKS OF THE ELEPHANT. 437 formity with the views of Hohl, in the formation of pulp-nodules ananalogous process to the formation of normal dentine. While assenting to the statement that any cell of the pulp mayproduce appearances
Size: 1508px × 1657px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthor, bookcentury1800, bookdecade1890, booksubjectdentistry
