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Full-Text Articles in Medicine and Health Sciences
A Transmission Electron Microscopy Study Of Early Changes In Hypoxic Pulps, Nah Nah Chen
A Transmission Electron Microscopy Study Of Early Changes In Hypoxic Pulps, Nah Nah Chen
Loma Linda University Electronic Theses, Dissertations & Projects
Early cellular changes in pulps whose blood supplies were severed were studied using transmission electron microscopy (TEM). Twenty-eight extracted teeth were divided into seven equal groups. Except for the 0 hour group, all other teeth were incubated in Tyrode solution at 37°C, after extraction. After 1/4, 1/2, 1, 2, 4, and 8 hours, teeth were split open and the pulps were processed for light and transmission electron microscopy and evaluated for cellular changes. Except for nuclear pyknosis in the 4 and 8 hour groups, light microscopic examination revealed very little changes when compared with that of TEM examination. With the …
The Anatomical Relationship Of The Mandibular Canal And Related Structures In Immature And Mature Dried Mandibles, Dale Denio
Loma Linda University Electronic Theses, Dissertations & Projects
The anatomical relationship of the mandibular canal and related structures were examined in 29 dried human mandibles (21 mature and eight immature). First and second premolars and molars were sectioned in a buccal-lingual plane. The molars were separated into mesial and' distal sections. A total of 322 sections were examined according to age (immature or mature), left or right, and type of tooth/root. Thirteen measurements were taken of each section and the results were statistically analysed.
The results indicated no significant difference between the mean averages when comparing the 13 data points between the left and right side of mandibles …
The Determination Of Antibody Levels In Endodontic Patients Against Eleven Microorganisms Using Ifa And Elisa Techniques, William C. Payne
The Determination Of Antibody Levels In Endodontic Patients Against Eleven Microorganisms Using Ifa And Elisa Techniques, William C. Payne
Loma Linda University Electronic Theses, Dissertations & Projects
Endodontic (root canal) infections are generally considered to be caused by the invasion of microorganisms which destroy pulp tissue and extend to the periapical region. No definitive study has identified a specific bacterium or group of bacteria as etiological agents. We quantitively measured antibodies present in the serum of 30 normal individuals and patients with either chronic (n = 30) or acute (n = 30) periapical lesions with the indirect fluorescent antibody (IFA) and enzyme-linked immunosorbent assay (ELISA) for IgG and IgM against 11 oral microorganisms routinely isolated from such lesions. The results were analyzed statistically. Analysis of variance of …