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Volume 37 (1995)
- Issue 4 Pages 197-
- Issue 3 Pages 131-
- Issue 2 Pages 77-
- Issue 1 Pages 1-
Predecessor
Volume 37, Issue 2
Displaying 1-7 of 7 articles from this issue
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Differential Diagnosis among Various Benign TumorsAtsushi Ikeshima1995 Volume 37 Issue 2 Pages 77-84
Published: 1995
Released on J-STAGE: March 11, 2011
JOURNAL FREE ACCESSAn attempt was made to quantify the location of various oral lesions using panoramic radiographs of benign tumors (20 ameloblastomas, 5 myxomas, 26 odontomas, 10 cementomas and 4 osteomas). The metrical data (integers) were obtained from a conversion table and the abscissa values (to the first decimal place) were obtained from the centroid of each of the tumors. Differential diagnosis among these lesions revealed that in the mandible, it is possible to differentiate between ameloblastomas and odontomas or osteomas. Thus, the present findings demonstrate that data on lesion location can be changed into metrical data for differential diagnosis of benign tumors.View full abstractDownload PDF (708K) -
Yasuyuki Hirano, Muneaki Tamura, Yuuji Sekine, Yuuji Nemoto, Kunio Hay ...1995 Volume 37 Issue 2 Pages 85-90
Published: 1995
Released on J-STAGE: March 11, 2011
JOURNAL FREE ACCESSThe ability of Actinomyces viscosus (A. viscosus) WVU 627 to attach to hydroxyapatite (HA) beads treated with either bovine fetuin or bovine mucin was studied. All preparations used were blocked with bovine serum albumin prior to incubation with [3H] thymidine-labeled A.viscosus cells. The quantity of fetuin or mucin adsorbed on the HA beads was determined by use of [3H] fetuin or [3H] mucin. Approximately 6μg protein of [3H] fetuin and 20 jig of protein of [3H] mucin adsorbed to 5 mg of HA beads at saturation, respectively.
The presence of fetuin or mucin on HA beads promoted attachment of the organism. However, HA beads treated with human whole saliva as a positive control promoted A.viscosus attachment more effectively than HA beads treated with these glycoproteins. Attachment of two additional strains (B 236 and B 25) of A. viscosus to HA beads was also promoted by these glycoproteins. The number of A.viscosus cells which attached to fetuin-treated HA beads was dose-dependent, except for strain B 25. For all three A.viscosus strains tested, attachment to the experimental pellicle with mucin was dose-dependent.
These findings suggest that the use of these newly developed bacterial adhesion assay systems may be effective for elucidating bacterial adhesion mechanisms.View full abstractDownload PDF (833K) -
Noboru Kuboyama, Yoshiko Moriya1995 Volume 37 Issue 2 Pages 91-96
Published: 1995
Released on J-STAGE: March 11, 2011
JOURNAL FREE ACCESSThe present study was undertaken to determine the effects of different dietary consistencies and malocclusion induced by extraction of molar teeth on the masticatory organs of weaning and adult rats, by determining the biochemical properties of masseter muscle, and also Ca and P levels in mandibular bone. Male SD rats, 3 and 20 weeks old, were divided into 3 groups. Group one (G-1) was maintained on a solid diet, and Groups two (G-2) and three (G-3) on a semi-solid diet. Furthermore, the mandibular molar teeth of G-3 rats were extracted. The experimental period was 120 days. The masseter muscle and mandibular bone weights of G-1 in weaning rats were increased significantly in comparison with G-3, but not in adult rats. The CPK activities in weaning and adult rats of G-1 were higher than those in the other two groups. The order of LDH activity in weaning and adult rats was G-3 > G-2 > G-1. G-2 and particularly G-3 showed significantly lower glycogen contents than G-1. The Ca and P contents of the mandibular bone in G-2 and G-3 were lower than those in G-1. These results suggest that a different dietary consistency and maloccusion induced by extraction of mandibular molar teeth have a considerable influence on the development of masticatory organs, mandibular bone and masseter muscle.View full abstractDownload PDF (909K) -
Kaoru Kusama, Ling Chu, Yoshihiro Kidokoro, Mitsuaki Kouzu, Tamotsu Ue ...1995 Volume 37 Issue 2 Pages 97-101
Published: 1995
Released on J-STAGE: March 11, 2011
JOURNAL FREE ACCESSA case of glomus tumor of the upper lip in a 57-year-old Japanese male is described. The patient had a tender swelling of the upper lip, and this was completely excised. The lesion was found to be encapsulated by fibrous connective tissue and composed of blood capillaries surrounded by sheets of epitheloid cells. Immunohistochemical examination revealed that the neoplastic cells were positive for S-100 protein, vimentin, desmin and actin. Although the endothelial cells of blood capillaries in the tumor tissue were positive for factor VIII, no reaction product was found in the tumor cells. These results suggested that the tumor cells had characteristics of smooth muscle cells.View full abstractDownload PDF (1474K) -
Tetsuo Shimoyama, Norio Horie, Takahiro Kaneko, Tsubura Suzuki, Yasuhi ...1995 Volume 37 Issue 2 Pages 102-104
Published: 1995
Released on J-STAGE: March 11, 2011
JOURNAL FREE ACCESSAn additional case of mural squamous odontogenic tumor in a mandibular primordial cyst is reported and its clinicopathologic features are described.View full abstractDownload PDF (596K) -
A Previously Undescribed Oral MalformationYohko Fukuta, Morio Totsuka, Yasunori Takeda, Hirotsugu Yamamoto1995 Volume 37 Issue 2 Pages 105-107
Published: 1995
Released on J-STAGE: March 11, 2011
JOURNAL FREE ACCESSA case of Y-shaped lower bilateral central incisors found in an 18-year-old Japanese man is reported. Each of the central incisors had an abnormally high cusp located at the labial surface. The cause of this malformation of the lower central incisors is obscure, but we suspect that it was due to hyperplasia of the labial surface of the central lobe of the incisor during tooth development.View full abstractDownload PDF (678K) -
Masahiko Miyake, Yasuyuki Oda, Shinkichi Iwanari, Itsuro Kudo, Takayos ...1995 Volume 37 Issue 2 Pages 108-114
Published: 1995
Released on J-STAGE: March 11, 2011
JOURNAL FREE ACCESSWe carried out a detailed total body examination of a 62-year-old woman with osteoporosis who had bilateral defects in the mandibular processes. It was inferred that the defects in both articular heads were caused by resorption of small bone fragments following fracture. The quantity of bone salt was determined by microdensitometry, and a diagnosis of osteoporosis was then established. An improved bite was obtained by treatment consisting of tooth extraction and the preparation of partial dentures.View full abstractDownload PDF (1710K)
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