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Titolo:
The image of the hard palate/nasal fossa floor in panoramic radiography: The controversy is over
Autore:
Azevedo, LR; Damante, JH;
Indirizzi:
Univ Sao Paulo, Bauru Sch Dent, Dept Stomatol, Sao Paulo, Brazil Univ Sao Paulo Sao Paulo Brazil Dent, Dept Stomatol, Sao Paulo, Brazil
Titolo Testata:
ORAL SURGERY ORAL MEDICINE ORAL PATHOLOGY ORAL RADIOLOGY AND ENDODONTICS
fascicolo: 4, volume: 92, anno: 2001,
pagine: 464 - 469
SICI:
1079-2104(200110)92:4<464:TIOTHP>2.0.ZU;2-1
Fonte:
ISI
Lingua:
ENG
Soggetto:
ARTIFACTS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
29
Recensione:
Indirizzi per estratti:
Indirizzo: Azevedo, LR Univ Sao Paulo, Bauru Sch Dent, Dept Stomatol, Sao Paulo, Brazil Univ Sao Paulo Sao Paulo Brazil Stomatol, Sao Paulo, Brazil
Citazione:
L.R. Azevedo e J.H. Damante, "The image of the hard palate/nasal fossa floor in panoramic radiography: The controversy is over", ORAL SURG O, 92(4), 2001, pp. 464-469

Abstract

Objective. The aim of this investigation was to obtain further informationabout the anatomic structures involved in the formation of the upper imageof the hard palate/nasal fossa floor (HP/NFF). Study design. Three dry human skulls underwent ostectomies along the HP midline (ie, the area of the junction of the nasal septum with the nasal fossa floor) and along posterior portions of the HP/NFF (ie, the horizontal plates of the palatine bones and part of the palatine processes of the maxillae). The radiographs were digitized and preostectomy and postostectomy optical densities were measured. Preostectomy and postostectomy optical densities were also measured. Results. Partial disappearance of the upper image occurred after ostectomyof the junction of the nasal septum with the NFF. Total disappearance occurred only after bilateral ostectomy of the posterior portions of the HP/NFF. The mean increases in regional optical density in terms of pixel gray level after the ostectomies were 70.44%, 72.27%, and 51.40%. Conclusions. The junction of the nasal septum with the NFF and the posterior portions of the HP/NFF form the upper image of the HP/NFF. Most of the image is real, although a small part is a ghost image of the horizontal plates of the palatine bones and of the posterior region of the palatine processes of the maxillae.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 22/01/20 alle ore 09:41:48