Volume 4

G. V. Black's Work on operative dentistry : with which his Special dental pathology is combined / revision by Arthur D. Black.

  • Black, G. V. (Greene Vardiman), 1836-1915.
Date:
1936
Catalogue details

Licence: Public Domain Mark

Credit: G. V. Black's Work on operative dentistry : with which his Special dental pathology is combined / revision by Arthur D. Black. Source: Wellcome Collection.

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    and was still active at the time of removal at the end of twenty- nine days. There is osteoclastic activity on the peridental membrane sur¬ face of the alveolar process. There were no resorbed regions in the cementum. The region of resorption in the bone extends the full length of the illustration from R to R; the osteoclasts may be seen at 0, 0; the bone is indicated by G; peridental membrane P; cemen¬ tum c and dentin D. Figure 1430 shows the lingual or traction side at the position of the crest of the bone. New bone spicules are arranged parallel to the line of force. Due to the fact that the tipping movement caused the lingual root to be elevated within its alveolus, the lingual side of the crown of this root was correspondingly raised and the Fig. 1431. Fig. 1432. Fig. 1431. Pericementitis caused by orthodontic force sufficiently strong to press tooth against the crest of the alveolar process. Stuteville. Fig. 1432. Repair on the pressure side during rest period in a case similar to that shown in Fig. 1431. The bone which had been resorbed is being rebuilt and the resorption of the cemen¬ tum is being replaced with secondary cementum. Stuteville. traction on the fibers of the alveolar crest group caused the crest of the process to be built considerably higher. The line of demarka- tion between the normal alveolar process and the bone newly formed as a result of the pull on the fibers of the peridental mem¬ brane is very clearly shown. The normal bone is marked G; the new bone B. Osteoblasts are shown at 0, the peridental membrane P; the cementum c, and the dentin D. Figure 1431 illustrates the pericementitis caused by a force sufficiently strong to press the tooth against the crest of the alveolar process. This is an upper first bicuspid from the mouth of a girl