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Tomography of the alveolar process

1980; Elsevier BV; Volume: 49; Issue: 2 Linguagem: Inglês

10.1016/0030-4220(80)90315-1

1878-2175

William H. Stalker, Duane E. Cutright, Donald W. Goodwin,

Periodontal Regeneration and Treatments

This radiologic study using hemisected dog jaws was undertaken to determine whether or not tomographic techniques would be superior to standard dental x-ray techniques in detecting prepared periodontal defects within the cancellous bone of dog jaws. Specifically, it was done to determine whether or not tomography might be a reliable method of checking for bone fill in periodontal bone-grafting therapy. As an additional measure, a radiographic study, using a hemisected dog mandible and standard dental x-ray techniques, was undertaken to determine whether lesion size or cortical plate involvement was the determining factor in radiographic visibility. When tomographic techniques were used 55% of thirty-one prepared defects were visible, while standard dental x-ray techniques detected 29% of the same defects radiographically. The differences in detection rate were not statistically significant when analyzed by chi square. Although tomography resulted in radiographic visibility of a greater number of prepared defects, it is not reliable enough to replace re-entry procedures for documentation of bone fill in clinical studies of periodontal bone-grafting procedures. In the additional study it was determined that cortical plate involvement was the determining factor in radiographic visibility of bony defects.