Open Access. Powered by Scholars. Published by Universities.®

Radiology Commons

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 5 of 5

Full-Text Articles in Radiology

Development Of Periapical Lesions In Immunosuppressed Rats, Phillip A. Waterman Jr. Aug 1992

Development Of Periapical Lesions In Immunosuppressed Rats, Phillip A. Waterman Jr.

Loma Linda University Electronic Theses, Dissertations & Projects

The pathogenesis of periapical lesions is the interaction of the oral flora with the existing host defenses. The role of bacteria has been established in endodontic disease but the contribution of the host defenses in periapical lesion formation is less clear. The purpose of this study was to compare periapical lesion development in immunosuppressed rats with that in normal rats. Thirty-five, eight-week old Sprague-Dawley rats were equally divided into seven groups. Groups 1, 2, and 3 were given weekly injections of Cytoxan, an immunosuppressive agent. Groups 4, 5, and 6 received no immunosuppressive therapy. Group 7 served as a control, …


Department Of Radiology-Annual Report-July 1, 1991 To June 30, 1992, David C. Levin Jun 1992

Department Of Radiology-Annual Report-July 1, 1991 To June 30, 1992, David C. Levin

Department of Radiology Administrative Documents and Reports

Department of Radiology Annual Report, July 1, 1991 to June 30, 1992. Thomas Jefferson University Hospital, Philadelphia, Pennsylvania, United States. 72 pages.


Oesophageal Carcinoma Caused By Betel Nut, M Y. Sheikh, I H. Rizvi, I Ahmed Jun 1992

Oesophageal Carcinoma Caused By Betel Nut, M Y. Sheikh, I H. Rizvi, I Ahmed

Department of Radiology

No abstract provided.


Soft Tissue Changes Of The Upper Lip Following Isolated Le Fort I Osteotomies, Kendall E. James Jun 1992

Soft Tissue Changes Of The Upper Lip Following Isolated Le Fort I Osteotomies, Kendall E. James

Loma Linda University Electronic Theses, Dissertations & Projects

Pre-operative (T-1) and post-operative (T-3) radiographs were obtained and traced for fifty-one non-growing patients who had undergone isolated Le Fort I osteotomies. These tracings were then digitized with the results arranged in a data file and subjected to statistical analysis. The purpose of this study was to establish ratios for certain hard to soft tissue movements that could be used to aid the clinician in post-surgical soft tissue profile prediction. The results showed that even though a large sample was used, individual patient variability remained high particularly in the horizontal directions. Most ratios found in this study were consistent with …


Condylar Angulations As Related To Submental-Vertex Radiographs, Jady L. Chiakowsky Jun 1992

Condylar Angulations As Related To Submental-Vertex Radiographs, Jady L. Chiakowsky

Loma Linda University Electronic Theses, Dissertations & Projects

Pretreatment submental-vertex radiographs were obtained for 637 adolescent patients (307 males, 330 females) who had presented themselves for orthodontic treatment. The purpose of this study was to: (1) determine the relationship between condylar angulations and depth of cut with the variables: age, sex, and race, and (2) establish normative values for the categories studied. The results indicated that no significant differences existed between the condylar angulations for the variables measured. However, significant differences did exist between the depth of cut for the variables measured and there was significant interaction between age and race with respect to the depth of cut. …