The contribution of trabecular bone to the visibility of the lamina dura: an in vitro radiographic study.
Oral Surg Oral Med Oral Pathol Oral Radiol Endod
; 93(1): 118-22, 2002 Jan.
Article
em En
| MEDLINE
| ID: mdl-11805787
OBJECTIVE: The objective of this study was to determine the degree to which trabecular bone contributes to the radiographic visibility of lamina dura. STUDY DESIGN: Segments of human cadaver mandible were obtained and split longitudinally. Two identical radiographs were made of each segment (1) before the removal of any additional bone and after (2) the removal of a small amount of the lamina dura at the apex of a tooth, (3) block removal of trabecular bone, and (4) smoothing of the endosteal surface of the external cortex. The radiographs were projected in random pairs for each sample. Six dentists judged whether a difference in the amount of lamina dura could be detected between 2 sets of radiographs. RESULTS: Chi-square analysis revealed a significant radiographic difference between radiographs made initially and after removal of the lamina dura and trabecular bone. CONCLUSIONS: Fewer than half of the changes of lamina dura loss alone could be detected radiographically by the observing dentists, whereas nearly all cases of the loss of periapical lamina dura in conjunction with loss of trabecular bone could be detected.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Tecido Periapical
/
Processo Alveolar
Tipo de estudo:
Diagnostic_studies
Limite:
Aged
/
Humans
/
Middle aged
Idioma:
En
Revista:
Oral Surg Oral Med Oral Pathol Oral Radiol Endod
Ano de publicação:
2002
Tipo de documento:
Article
País de afiliação:
Brasil
País de publicação:
Estados Unidos