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Volume 48, Issue 3
Displaying 1-10 of 10 articles from this issue
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Tomohiro SATO, Akira OKUMURA, Masaaki GOTO, Koichirou IHARA, Takeshi K ...1999 Volume 48 Issue 3 Pages 165-170
Published: May 10, 1999
Released on J-STAGE: September 07, 2011
JOURNAL FREE ACCESSTitanium miniplates have been widely used in mandibular fracture fixation because of sufficient strength and excellent biocompatibility. However, no papers that report on histological contact conditions between adjacent tissue and titanium bone screws used for mandibular fracture treatment in humans have been published.
The contact condition in histological terms was investigated using undecalcified sections between adjacent tissue and titanium bone screws used in mandibular fracture treatment.
The materials were 8 titanium bone screws with adjacent mandibular bone retrieved from 6 male and 2 female patients treated for mandibular fracture by miniplate fixation between January 1997 and February 1998. Titanium bone screws with adjacent bone were taken out at the time of titanium miniplate removal.
Undecalcified sections were prepared and examined by light microscopy. The ratio of direct contact between bone and titanium bone screw surface was also analyzed with a computer-aided image analyzer.
The mean ratio of direct contact between bone and titanium bone screw surface was 60.1 %. Direct bone contact was generally observed in one case, and partial interposition of fibrous connective tissue was observed in the remaining 7 cases. Further, the mean ratio of direct contact between compact substance (cortical bone) and titanium bone screw surface was 80.4 %.
Titanium bone screws were almost totally in contact with new bone from the adjacent compact substance (cortical bone) and sponge substance. The conditions of titanium bone screws were stable.View full abstractDownload PDF (3033K) -
Chihiro KOGA, Kazuyosi TAKAMUKI, Sisei TOYOFUKU, Hidenori SAKAINO, Ken ...1999 Volume 48 Issue 3 Pages 171-174
Published: May 10, 1999
Released on J-STAGE: September 07, 2011
JOURNAL FREE ACCESSPsychiatric clinical cases among patients with oral psychosomatic symptoms in the oral region were screened. The diagnosis made after oral surgery was compared with that based on psychiatric interview.
A total of 39 patients who visited the outpatient clinic of the Department of Oral Surgery, Kurume University Hospital participated in this study.
The mean age was 57.5 years old. There were 8 males and 31 females, and the gender ratio was 1: 4.
Diagnoses after oral surgery were glossalgia in 13 cases, TMJ disease in 7 cases, unknown in 9 cases, oral paraesthesia in 8 cases, and halitosis in 2 cases.
Refractory psychosomatic cases were, 18 % for glossalgia, 0.8 % for TMJ disease, 23 % for uncertain, 8 % for oral paraesthesia, and 100 % for halitosis.
TMJ disease had a low percentage in comparison to that of glossalgia in which neurosis and depression comprised almost the same percentage. In TMJ disease and unknown a high ratio of depression and a high ratio of neurosis in oral paraesthesia were noted.
In many refractory psychosomatic patients, treatment by the psychiatric clinic would produce a better outcome.
Consultation with psychiatrists was considered to be useful for treating oral psychosomatic disease.View full abstractDownload PDF (491K) -
Tomoaki SHIBUYA, Yutaka KIMIJIMA, Masafumi MIMURA, Koji KINO, Hidemi Y ...1999 Volume 48 Issue 3 Pages 175-179
Published: May 10, 1999
Released on J-STAGE: September 07, 2011
JOURNAL FREE ACCESSSynovial chondromatosis is a disease of cartilagenous metaplasia of the synovial membrane accompanied by loose bodies within the articular cavity. A 23-year-old female visited our clinic with pain in the right temporomandibular joint (TMJ) and trismus.
Removal of all loose bodies, synovectomy and disectomy were performed. In the light microscopic examination, the loose bodies showed cartilagenous metaplasia, but the synovial membrane did not show cartilagenous metaplasia. Thus the tissue was examined under an electron microscope and by the RT-PCR method. In the electron microscopic examination, extensively dilated rough endoplasmic reticulum and irregular nuclei or cells were not found. Total RNA was extracted from the synovial membrane and examined by the RT-PCR method. The expression level of Aggrecan mRNA was low. It was found that cellular activity of the synovial membrane decreased.View full abstractDownload PDF (3503K) -
Usefulness of Wound Healing Index in Anemic and Diabetic Animal ModelsHiromitsu NABESHIMA, Takao IMAI, Kenji YOSHIDA, Kenichi KURITA1999 Volume 48 Issue 3 Pages 180-189
Published: May 10, 1999
Released on J-STAGE: September 07, 2011
JOURNAL FREE ACCESSIn this study the process of wound healing was examined using anemic and diabetic models, and the following experiment was conducted to examine whether wound healing can be evaluated by a wound healing index for connective tissues, Kc.
Eight-week-old male Sprague-Dowley rats were used.
An anemic model was prepared by extracting blood from the jugular vein while providing an irondeficient powdered diet. A diabetic model was prepared by administering a single dose of STZ (40 mg/kg) via the tail vein. To prepare wounds, a round parenchymal defect wound was created under intraperitoneal anesthesia using a skin trephine of 6 mm in diameter. Histopathological examination and examination by cellular digestion SEM were performed with every day after wound preparation. The macroscopic findings were epithelialization 7 days after wound preparation in both the anemic group and the diabetic group, as noted in the control group. When the area of wound site was measured, values were gradually reduced in the control group, the anemic group and the diabetic group. However, there were significant differences between the control group and anemic or diabetic groups 7, 14, 21 and 28 days after wound preparation.
The results of this experiment were examined using the wound healing index in the anemic group and diabetic group.View full abstractDownload PDF (4101K) -
Analysis of Collagen Gel Contraction Cultivated with the Conditioned Medium of the Cultured Oral EpitheliumYukio SUMI, Ken-ichiro HATA, Minoru UEDA, Hisako MURAMATSU, Takashi MU ...1999 Volume 48 Issue 3 Pages 190-198
Published: May 10, 1999
Released on J-STAGE: September 07, 2011
JOURNAL FREE ACCESSControl of scar contraction is very important in surgery. In oral and maxillofacial surgery, the surgical treatment can resultin a functional disorder for example, scar contraction of the front palate may cause less growth of the maxilla after palatoplasty.
We have reported that a connective tissue model (CTM) can reflect the mechanism of wound contraction. On the other hand, recently, it has been reported that growth factors secreted by epithelial cells inhibit scar contraction.
In this study, it was attempted to determine if a conditioned medium of cultured epithelial cells (CM) affects the contraction potency of CTM. In the culture process, CTM gradually decreased in size due to the tractional force of fibroblasts which affected collagen and rearranged the collagen fibrils. However, CTM cultured with CM inhibited the contraction in comparison with the control. The inhibition of CTM contraction was released when the culture medium was changed from CM to the control medium. Thus this effect is a reversible reaction.
CM was used under affinity chromatography and eluted stepwise by different concentrations of salt in the elution buffer (0.5 mole, 1.0 mole, 1.5 mole, respectively). Each fraction was concentrated to a pellet. Each pellet was dissolved in normal medium, and 10 % FBS was added. When CTM was cultured with these three mediums, two mediums (0.5 mole, 1.0 mole) inhibited CTM contraction. After chromatography of CM, the separated three fractions were applied to an SDS-polyacrylamide gel. Some bands were the same in 0.5 mole and 1.0 mole fractions. The inhibitor of CTM contraction may exist in these bands.
It is being attemped to determine the inhibitory factors of CTM contraction.View full abstractDownload PDF (3982K) -
Kazuyuki NISHIMURA, Yoshinori YAMAGUCHI, Kazusada YOSHITAKE1999 Volume 48 Issue 3 Pages 199-210
Published: May 10, 1999
Released on J-STAGE: September 07, 2011
JOURNAL FREE ACCESSDownload PDF (8614K) -
Takahiro INOUE, Katsuhiro HORIUCHI, Yoshiyuki NAKATANI, Masahito SUGIM ...1999 Volume 48 Issue 3 Pages 211-215
Published: May 10, 1999
Released on J-STAGE: September 07, 2011
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Satoru IKEMOTO, Yuji SHIRATSUCHI, Hiroyuki KAI, Masamichi OHISHI1999 Volume 48 Issue 3 Pages 216-219
Published: May 10, 1999
Released on J-STAGE: September 07, 2011
JOURNAL FREE ACCESSDownload PDF (530K) -
Tetsuya YAJIMA, Jun KURAUCHI1999 Volume 48 Issue 3 Pages 220-223
Published: May 10, 1999
Released on J-STAGE: September 07, 2011
JOURNAL FREE ACCESSDownload PDF (3099K) -
Jun SATO, Tohru SAITO, Ken-ichi NOTANI, Hiroshi FUKUDA, Masanobu SHIND ...1999 Volume 48 Issue 3 Pages 224-227
Published: May 10, 1999
Released on J-STAGE: November 25, 2011
JOURNAL FREE ACCESSDownload PDF (3981K)
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