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Volume 41, Issue 3
Displaying 1-21 of 21 articles from this issue
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Morphological Changes of Fungiform Papillae Following Neurectomy of the Chorda Tympani-Lingual NerveToshikazu NAGATO, Kohjiro MATSUMOTO, Masami NAGAKI, Hiroaki TANIOKA1992 Volume 41 Issue 3 Pages 415-426
Published: July 10, 1992
Released on J-STAGE: September 07, 2011
JOURNAL FREE ACCESSIn an attempt to elucidate the effects of denervation on development and maintenance of the structure of the fungiform papilla, neurectomy of the chorda tympani andlingual nerve in rats was performed at day 1, and weeks 1, 2, 3, 4, 7, and 10 after birth, and specimens were obtained at days 3, 7, 10, and weeks 2, 3, 4, 6, and 8, and months 3 and 4 after neurectomy to examine with light and scanning electron microscopy. Morphological changes of the fungiform papillae first started with an atrophic state which remained their basic morphological features, and then progressed to forms close to fi lliform papillae, deviating from their basic morphological features. When immature fungiform papilla was denervated, it changed eventually to a complete filliform papilla which was the same as ordinary filiform papilla. The series of changes differed according to the time of neurectomy, and it was found that early neurectomy resulted in more marked morphological change of the fungiform papilla. The filiform papilla-like papillae transformed from fungiform papillae showed various shapes, sizes and directions. The transverse sections of the filiform papilla-like papillae revealed that papillae have polarity in a similar direction to those seen in the ordinary filiform papilla. These findings suggest the following. (1) Development and maintenance of the structure of fungiform papillae require the presence of the chorda tympani and/or lingual nerve in addition to the presence of the mesenchyme. (2) It is assumed that the fungiform papillae potentially have direction. (3) The fungiform papillae may be specially transformed filiform papillae which were induced and maintained by neurotrophic factor of chorda tympani and/or lingual nerve.View full abstractDownload PDF (34505K) -
Kiyoshi YOSHIDA, Junichi TANAKA, Noriyuki FUKUSHI, Masayuki TAKAHASHI, ...1992 Volume 41 Issue 3 Pages 427-432
Published: July 10, 1992
Released on J-STAGE: September 07, 2011
JOURNAL FREE ACCESSCytokines mean physiological activators produced by many kinds of cells, and recently they attract our attention because of their variety of influence upon many organs. Especially some of them were reported to take part in bone metabolism. In this report, we measured IL-1β and TNF-α of normal jaw bones and jaw bones with several jaw bone diseases. And owing to this result as well as arachidonic acids and tumor-markers of jaw bone which we measured before, we found the following:
1) Concentrations of IL-1β and TNF-α in bone had a strong positive correlation, and they were higher in tumor-infiltrated bone than in normal jaw bones. PGE2 was also higher in the tumor-infiltrated bone than in the normal jaw bone. According to these results, under influence of PGE2, IL-1β and TNF-α were thought to activated osteoclasts.
2) IL-1β and TNF-α were more higher in the bones enclosing an adamantinoma or post operative maxillary cyst than in the tumor infiltrated bone. In these cases, IL-1β and TNF-α were thought to promote inflammation.
3) As to arachidonic acid metabolites, PGE1 and 6keto-PGF1α as well as PGE2, were significantly higher in the tumor-infiltrated bones than in normal jaw bones. As a result PGI2 which was metabolited to be 6keto-PGF1α may absorb bone surrounding the tumor.
4) Relating to Tumor-markers, SCC in cancer-infiltrated bone was twice as high as in normal jaw aones (with significant difference), and about 100 times as high as that in upper limit of normal serum level (1.6ng/ml). So both tumor and bone were thought to produce SCC. On the other hand, CEA in cancer-infiltrated bone was also twice as high as in normal jaw bone, but without significant difference, and even CEA in normal jaw bones were 3 or 4 times as high as in the upper limit of normal serum level (2.5ng/ml). Therefore CEA may affect bone metabolism.View full abstractDownload PDF (623K) -
Takayoshi TSUBAI, Yasutomo IWAI, Miyoko NISHIMURA, Yoshikage HIGASHI1992 Volume 41 Issue 3 Pages 433-436
Published: July 10, 1992
Released on J-STAGE: September 07, 2011
JOURNAL FREE ACCESSThis study was made to investigate the relationships, of cartilagenous components and elastic fibers in the madibular joint of mice relating to age changes by histochemical methods; light microscopy and quantitative analytic methods were used. The results were as follows:
1) The size and number of the cartilage cells greatly reduced after 20 weeks.
2) Between 60- to 120-weeks old, quantity and distribution of the elastic fibers were decreased.
3) Distribution of the cartilage components and the elastic fibers in the remolding condylar head of 120-weeks-old mice indicated that tissue repair was accomplished in the aged madibular joint.View full abstractDownload PDF (7136K) -
Electron Microscopic StudiesMichinori TAKESUE, Katsutoshi FUJITA, Kenji NONOBE, Masakatsu HARA, Em ...1992 Volume 41 Issue 3 Pages 437-445
Published: July 10, 1992
Released on J-STAGE: September 07, 2011
JOURNAL FREE ACCESSGlu-P-1 is one of the mutagenic compounds which have been isolated from pyrolysates of amino acids and cooked foods. The present study was carried out to investigate ultrastructurally the changes of the epithelium-connective tissue junction in the gingival wound treated with Glu-P-1 in rats. The animal had an incision in the lingual gingiva of lower incisors. Immediately after incision, the wounds of Groups a and b were treated with distilled water and Glu-P-1, respectively. The gingivae were examined ultrastructurally at 4 and 28 days after treatment. In Group a at 4 days, the gingival basal lamina exhibited various changes such as detachments, breaks, thickenings, and multiplications. In Group b at 4 days, the above-mentioned various changes of the basal lamina were more conspicuous than those of Group a at 4 days. In Groups a and b at 28 days the changes of the basal lamina were improved. However, in Group b at 28 days, the changes were severer when compared with those of Group a at 28 days. The results of the present study suggested that the application of Glu-P-1 induced the marked ultrastructural changes in the epithelium-connective tissue junction, particularly the basal lamina, in rat gingiva.View full abstractDownload PDF (12503K) -
Masami NAGAKI, Toshikazu NAGATO, Hiroaki TANIOKA1992 Volume 41 Issue 3 Pages 446-455
Published: July 10, 1992
Released on J-STAGE: September 07, 2011
JOURNAL FREE ACCESSFor the purpose of clarifying the growth mechanism of the salivary gland, the terminal portions containing Type III secretory cells of the rat submandibular gland, 2 to 8 months of age, were studied by three-dimensional image analyzer (Tri system, Ratoc System Engineering Co., Ltd.)
The gland weight increased up to 6 months of age, it was suggested that the gland kept growing and developing from 2 to 6 months of age. On the other hand, the frequency of Type III secretory cells decreased up to 6 months of age, but was higher than that of after 6 months of age. This indicated that this cell was concerned with growth and development of the gland. Three-dimensional reconstructions of mixed terminal portions containing Type III, Type IV secretory cells and seromucous cells indicated that Type III secretory cells were at the end of the terminal portion, seromucous cells were on the intercalated duct side and Type IV secretory cells were intermediate between them Three-dimensional image analysis of terminal portion-duct system complex showed that each complex differed in development of the intercalated duct, volume of terminal portions, number of terminal portions and ratio of cells in the terminal portions. This indicated that the complex grew and developed. These findings suggest a growth mechanism. At first, a new terminal portion-duct system complex which constitutes of terminal portions contained Type III secretory cells were formed. Thereafter, Type III secretory cells differentiated into proper seromucous cells via Type IV secretory cells.View full abstractDownload PDF (9121K) -
1. Basic Study with Fetal Mice CalvariaeDaisuke KANISHI, Yoshinori JINBU, Hiromi WAKAO, Isamu KASHIMA, Junichi ...1992 Volume 41 Issue 3 Pages 456-464
Published: July 10, 1992
Released on J-STAGE: September 07, 2011
JOURNAL FREE ACCESSThe accumulation mechanisms of 99mTc-MDP (technetium-99 m methylene diphosphonate) were investigated using mice calvariae, bone fragments from dogs and hydroxyapatite powder. Radioactivity was analyzed using a Bio-imaging analyzer and a scintillation counter. The fetal mice calvariae in the tissue culture were obtained from ICR mice in late pregnancy (day 19-20). After the tissue was cultured for 10 days, 99mTc-MDP was added to the medium, and a Bio-imaging analyzer was used to detect radioactivity. 99mTc-MDP was added to the culture medium and then incubated for 2 hours, 99mTc-MDP accumulation was consistently found in the area of cells growing out from the bone fragment.
Accumulation of 99mTc-MDP in bone was strongly inhibited by pyrophosphate, MDP, and EDTA solutions.
The results suggest that the accumulation of 99mTc-MDP in mice calvariae occurred through both adsorption and uptake mediated by osteoblast-like cells.View full abstractDownload PDF (11726K) -
Tomohiro ANDO, Hiroyuki KANEKO, Yoshikuni SANGU, Hideki OGIUCHI1992 Volume 41 Issue 3 Pages 465-469
Published: July 10, 1992
Released on J-STAGE: September 07, 2011
JOURNAL FREE ACCESSThe peripheral blood lymphocytes of 18 patients with recurrent aphthous stomatitis (RAS) were studied by two color flow cytometry.
Peripheral blood samples were taken from RAS patients in active phases and from healthy control subjects. CD 3+ cells and CD 4+ cells percentages were significantly decreased in RAS patients as compared with controls.
Cytotoxic T cells (CD 8+CD 11-) were increased in patients and suppressor-inducer T cells (CD 4+ Leu 8+) were decreased in patients.
RAS patients have elevated helper T cells/suppressor T cells ratio (CD 4+Leu 8-/CD 8+CD 11+ratio).
Those results suggest that patients with RAS have imbalances in immunoregulation.View full abstractDownload PDF (565K) -
Shuichi SATOU, Hiroshi KAWAMURA, Hideki TANAKA, Minoru SATOU, Katsutos ...1992 Volume 41 Issue 3 Pages 470-477
Published: July 10, 1992
Released on J-STAGE: September 07, 2011
JOURNAL FREE ACCESSTwo cases of salivary calculi of the parotid gland were reported.
A 46-year-old female visited our clinic with the chief complaint of left parotid gland pain. The X ray film revealed intraductal stones. Three stones were removed with a pincette, and the next day two stones were excreted spontaneously.
The other patient, a 51-year-old female, visited our clinic with the chief complaint of right parotid gland swelling. The X ray film revealed a intraductal stone. Eleven days after her first visit to our clinic, the stone was removed with a pincette.
The patients completely recovered.
The calculus was studied by Scanning electron microscope and X-ray microanalyzer.View full abstractDownload PDF (13427K) -
Hideaki SAKASHITA, Masaru MIYATA, Hizuru MIYAMOTO, Takayoshi YAMAMURO, ...1992 Volume 41 Issue 3 Pages 478-484
Published: July 10, 1992
Released on J-STAGE: September 07, 2011
JOURNAL FREE ACCESSAspergillosis of the maxillary sinus were considered to be rare in occurrence. Recently, case reports of the disease seem to have increased. In this report, we presented two cases of aspergillosis of the maxillary sinus.
Case 1: A 39-year-old female was referred to our department with the chief complaint of pain and swelling in the right maxillary area. Clinical diagnosis was right odontogenic maxillary sinusitis due to the second premolor. Under general anesthesia, Caldwell-Luc operation was performed. Upon opening the sinus, a fungus ball was found. Postoperative histopathological investigation revealed aspergillosis.
Case 2: A 46-year-old male was referred to our department with the chief complaint of uncomfortable sensation in the left maxillary area. The clinical diagnosis was left odontogenic maxillary sinusitis due to the first premolor. Under the general anesthesia, Caldwell-Luc operation was performed. Upon opening the sinus, a fungus ball was found. Postoperative histopathological investigation revealed aspergillosis.View full abstractDownload PDF (15847K) -
Ryosuke ZEZE, Yoshiyuki HARADA, Kazuhisa OGAWA, Tadako WADA, Shin-ichi ...1992 Volume 41 Issue 3 Pages 485-493
Published: July 10, 1992
Released on J-STAGE: September 07, 2011
JOURNAL FREE ACCESSThis is a report of one rare case that there were a supernumerary deciduous tooth and a fused deciduous tooth in the mouth of a 4 1/2-year-old girl.
By the oral cavity examination, plaster analysis and X-ray examination, the following became clear:
1) In the place of the right upper deciduous central incisor there were two teeth which appeared to be deciduous central incisors. The mesial one was judged to be supernumerary.
2) No permanent successor of the supernumerary tooth was recognized.
3) In the right lower jaw no fusion of the deciduous central incisor and the deciduous lateral incisor was recognized.
4) The fused tooth was judged to be an incomplete fused one, which had two pulp chambers and root canals.
5) This was a very rare case of a supernumerary deciduous tooth and a fused deciduous tooth.View full abstractDownload PDF (8999K) -
Hitoshi NAGASAWA, Toshio YOKOBAYASHI, Keiko OKAZAWA, Takeshi SHIMIZU, ...1992 Volume 41 Issue 3 Pages 494-498
Published: July 10, 1992
Released on J-STAGE: September 07, 2011
JOURNAL FREE ACCESSA clinical analysis of 15 patients with foreign bodies of dental origin in the air and food passages treated in our department during the 7 years from 1984 to 1990 is described.
The foreign bodies were present in the alimentary canal in 14 patients and in the airway in one patient at the time of the initial examination. The age of the patients ranged from 6 to 83 years and there was a slight predominance in females with a male to female ratio of 2 to 3. The foreign bodies consisted of 3 inlays, 2 crown bridges, 2 onlays, 2 postcrowns, 1 denture, 1 reamer, 1 metal crown, 1 resin temporary crown, 1 conus inner crown and 1 amalgam filling. The accidental swallowing and aspiration occurred during fitting in 7 patients and dental extraction in 2 patients. The accident occurred while eating in 2 other patients. The foreign bodies were removed by endoscopic or bronchoscopic procedures on the day of the accident in 2 patients. Spontaneous evacuation in the stool occurred within 3 days in 9 patients. The fate of the foreign bodies was unknown in the 4 other patients. Serious complications resulting from the accidental swallowing or aspiration were not encountered in any patients.View full abstractDownload PDF (2574K) -
Masanori IWASA, Kaihei HAYASHI, Masahiro OONOYA, Satoru SAITO, Yasuo I ...1992 Volume 41 Issue 3 Pages 499-503
Published: July 10, 1992
Released on J-STAGE: September 07, 2011
JOURNAL FREE ACCESSIt is said that emphysema is a rare accidental symptom in field of dentistry and oral surgery. A case of face and neck emphysema is presented in this paper.
When a 66-year-old man was treated of L3 root canal, suddenly a diffuse painful swelling occurred at the left buccal region and lower eyelid soon after drying root canal by use of air from a unit air syringe. So he consulted an ophthalmologist that day. But he was referred to our clinic with the chief complaint of swelling of the left facial region the next day.
CT imaging was very useful for diagnosing of emphysema, so we could perform active therapy for findings of regions with air.
And we discussed the cause and therapy of emphysema.
From this case, we recognized that diagnosis, explanation of disease, emergency therapy, and responsibility of the doctor in regard to the psychological factor of the patient are important to avoid malpractice.View full abstractDownload PDF (6935K) -
Takanori ISHIMARU, Yoshikazu HAYATSU, Sachiyo OHSAWA, Fumihiko SHINOZA ...1992 Volume 41 Issue 3 Pages 504-510
Published: July 10, 1992
Released on J-STAGE: September 07, 2011
JOURNAL FREE ACCESSAntipsychotic drugs-induced extrapyramidal system disorders are well known. These hyperkinetic movements may cause the dislocation of the temporomandibular joint. This dislocation may develop recurrently if the medication cannot be interrupted, also it may be the prolonged as well.
Report of a case-A 51-year-old woman, diagnosed as schizophrenic and mentally retarede 31 years ago, was referred to the hospital to reduce her luxation of the bilateral temporomandibular joint, which she had for more than 6 months. Manipulation technique under intravenous sedation was tried to reduce it but was unsuccessful. Then manipulation technique under general anesthesia and arthroscopic technique, lysis and lavage, were used, the reduction was achieved. Arthroscopic findings such as much fibrilation, excessive adhesion, pseudowall, soap bubble appearance and perforation of the synovial tissue were observed. As expected, the dislocation recurred on the 66th day after operation, the opening of the mouth was restricted by a chin cap for 77 days. The range of the mouth opening was 35mm, occlusion and appetite was good 11 months after treatment. Chin cap was infrequently applied to prevent recurrent dislocation.View full abstractDownload PDF (10880K) -
I mmuno histological and Electron Microscopic Examinatio nNaritaka MIZUTANI, Yukihiko KINOSHITA, Shin-ichiro KOBAYASHI, Mamoru K ...1992 Volume 41 Issue 3 Pages 511-517
Published: July 10, 1992
Released on J-STAGE: November 25, 2011
JOURNAL FREE ACCESSA case of a 64-year-old female patient with lymphoepithelial lesion of the right submandibular gland is reported.
The characteristic histopathological appearance consisted of marked lymphoid cell infiltration, atrophy and destruction of acinal parenchyma, destruction and/or proliferation of the duct epithelial cells, and formation of epimyoepithelial island with or without deposition of hyaline-like substance.
Immunohistological examination revealed that T-cell (especially, helper/inducer T-cell) was observed on the entire area, and IgM positive cells were seen around the epimyoepithelial island.
Electron microscopic examination revealed that epimyoepithelial island were chiefly composed of light, dark, and a few myoepithelial cells.
There has been no evidence of xerostomia and systemic symptom in the patient up to now (8 years 6 months after operation).2 nd Department of Oral and Maxillofacial Surgery, Kanagawa Dental CollegeView full abstractDownload PDF (13722K) -
Naritaka MIZUTANI, Yukihiko KINOSHITA, Takatoshi TABATA, Masahiko DOHI ...1992 Volume 41 Issue 3 Pages 518-521
Published: July 10, 1992
Released on J-STAGE: September 07, 2011
JOURNAL FREE ACCESSA case of a buccal panniculitis in a 54-year-old female is reported.
Only iron deficiency anemia was seen in laboratory tests.
On the local findings, the mass (2.0cm in size) was seen from the left buccal subcutaneous region to the region on the periosteum of maxilla.
Histopathological features of biopsy were followed, the infiltration with lymphocytes and inflammatory cells, denaturant and liquefaction of lipocytes as well as infiltration with histiocytes and giant cells, and formation of granulation tissue were seen.
We treated with antibiotic, sulfanilamide, antiphlogistic, and antihistamine. The induration was reduced, and there has been no evidence of progression up to now (2 years 4 months after the treatment in the patient).View full abstractDownload PDF (6503K) -
Susumu HIRABAYASHI, Takakazu GOZAWA, Kenji MOGI1992 Volume 41 Issue 3 Pages 522-535
Published: July 10, 1992
Released on J-STAGE: September 07, 2011
JOURNAL FREE ACCESSTwenty cases of pleomorphic adenoma, seven cases of adenoid cystic carcinoma and three cases of mucoepidermoid tumor were examined clinically, pathologically and immunohistochemically. The results were as follows:
1. The term pleomorphic adenoma before the patients visited for our clinic was longer than that of adenoid cystic carcinoma and mucoepidermoid tumor. In many cases of pleomorphic adenoma and adenoid cystic carcinoma the lesion arose in the maxilla (the palate). In mucoepidermoid tumor two of three cases arose in the buccal mucous membrane. In pleomorphic adenoma the surface color was the same as that of normal mucous membrane, and in many adenoid cystic carcinomas, it was red or dark red.
In all cases of pleomorphic adenoma, the tumors were removed and the prognosis was good. In all cases of adenoid cystic carcinoma, resection and postoperative radiotherapy were performed. In two of them recurrence was noted. In all cases of mucoepidermoid tumor, the tumors were removed, and in two cases, postoperative radiotherapy was performed, but in one case, recurrence was noted.
2. Twenty cases of pleomorphic adenoma were classified into nine tubular, five solid and six tubularsolid types, according to the Shimada-Okuyama classification. Seven cases of adenoid cystic carcinoma were classified into four type I and three type II according to the Philip et al classification. Three cases of mucoepidermoid tumor were classified into two grade I and one grade II according to the Komori et al classification.
3. Immunoreaction for S-100 protein and GFAP was positive in only pleomorphic adenoma. Immunoreaction for vimentin was positive in myoepithelial-like cells of pleomorphic adenoma and positive in cells except the duct cells of a low differentiated type in adenoid cystic carcinoma. In mucoepidermoid tumor it was negative. Immunoreaction for actin was positive in myoepithelial-like cells of pleomorphic adenoma and adenoid cystic carcinoma, but it was negative in mucoepidermoid tumor. Immunoreaction for CEA was positive in epithelial cells inside the ducts of pleomorphic adenoma, inside the ducts of adenoid cystic carcinoma and around the mucous cells of mucoepidermoid tumor. Localization of CEA antigen seemed to indicate the differentiation of mucoepidermoid tumor cells.View full abstractDownload PDF (19668K) -
Ayumi OHMURA, Yuji SHIRATSUCHI, Ryuji TANI, Norifumi NAKAMURA, Yoshino ...1992 Volume 41 Issue 3 Pages 536-541
Published: July 10, 1992
Released on J-STAGE: September 07, 2011
JOURNAL FREE ACCESSA rare case of an odontoma associated with a dentigerous cyst in the mandible in a 53-year-old male is reported. Radiologically a well-defined radiolucency around the crown of an impacted right lower canine was seen. There was also a well-defined radiopaque lesion anterior to an impacted lower third molar. Both lesions were removed completely under general anesthesia. The two lesions seemed to be independent since they were separated by a 1cm healthy bone. The postoperative cavities were grafted with particulate cancellous hone and marrow. Histopathologically the radiolucent and the radiopaque lesions were diagnosed as dentigerous cyst and complex odontoma, respectively.View full abstractDownload PDF (8772K) -
Chiemi SAKAUE, Yoshimasa KIJI, Kumiko TSUBAKIDA, Yoshio ISHINO, Motohi ...1992 Volume 41 Issue 3 Pages 542-552
Published: July 10, 1992
Released on J-STAGE: September 07, 2011
JOURNAL FREE ACCESSA Protractor is an orthodontic device used for treating the maxillary retrusion. It utilized the orthopedic force created by the pulling of the maxilla and counterforce of the mandibula.
Combination Anchorage Technique is a combination technique that consists of the Begg and the straight wire techniques. By using a special bracket and buccal tube, it is possible to maximize the benefits of both techniques in orthodontic treatment.
We will report two cases treated by the Combination Anchorage Technique with the Protractor.View full abstractDownload PDF (21305K) -
Functional Results Using Questionnaire Interview MethodYukari YAMASHITA, Kohsuke OHNO, Satoko IMAI, Yukinori KIMURA, Ryuta KA ...1992 Volume 41 Issue 3 Pages 553-562
Published: July 10, 1992
Released on J-STAGE: September 07, 2011
JOURNAL FREE ACCESSAbstract: Recently, the free radial forearm (F. R. F.) flap has been widely used for reconstructive surgery of the head and neck. However, there are few reports of postoperative oral function after use of the F. R. F. flap, so it is still insufficiently evaluated. The purpose of the present study was to evaluate postoperative functions of mastication, deglutition and ingestion of our patients after reconstruction with F. R. F. flaps following resection of oral cancer.
Twenty-two cases were divided into three groups: the first group had resection of the tongue and floor of the mouth, the second group had resection of the soft palate and lateral wall of the oropharynx, and the third group included all others. The patient's mastication, deglutition, and ingestion were evaluated by subjective responses to questionnaires. The patients in Groups 2 and 3 achieved better functional results than those in Group 1. Consequently, the F. R. F. flap is considered to be a useful reconstructive technique to rehabilitate mastication, deglutition and ingestion.View full abstractDownload PDF (1366K) -
Yoshiki WATANABE, Masatsugu SHIMIZU, Yushi MATSUMOTO, Junji KYOUGOKU, ...1992 Volume 41 Issue 3 Pages 563-570
Published: July 10, 1992
Released on J-STAGE: September 07, 2011
JOURNAL FREE ACCESSAbstract: Leukoplakia is well known as popular precancerous lesion and there are lots of reports Abstract: Leukoplakia is well known as popular precancerous lesion and there are lots of reports.
By the way, Sugar and Pindborg etc. mentioned reversible leukoplakia, reduced only by removal of the disease factor. Now, we report 67 cases, diagnosed as leukoplakia at the first examination, and further comparison of 41 leukoplakia cases with 26 cases of reversible leukoplakia and resemble diseases, through 67 cases suspected at the first examination.
Clinical findings are as follows:
1. Occurrence ratio in cases having pain in contrast cases is higher than in leukoplakia cases, whilethe ratio of cases having no sign in the contrast cases is lower.
2. Ratio of flat red-white patch type in contrast cases is higher than in leukoplakia.
3. The cases reduced by removal of the disease factor in contrast cases is 16 reversible leukoplakia cases.
4. In resemble diseases, there are 5 cases of lichen planus, 3 squamous cell carcinoma, 2 moniliasis, 1 ulcerative stomatitis.
5. In leukoplakia cases, there is one case (2.4 %) that produces squamous cell carcinoma among cases diagnosed as dysplasia.
Based on these results, definition of leukoplakia by WHO (1978) isn't enough to satisfy conclusively this report in aspect to the clinical side.View full abstractDownload PDF (10700K) -
Case Report and Scanning Electron Microscopic ObservationYasushi IWASHIGE, Kazumasa SUGIHARA, Makoto FUJISAKI, Ryutarou MATSUI, ...1992 Volume 41 Issue 3 Pages 571-576
Published: July 10, 1992
Released on J-STAGE: September 07, 2011
JOURNAL FREE ACCESSA case of nasoalveolar cyst was reported. The patient, a 67-year-old woman, complained of swelling in the left alar base of the nose. Extraoral examination revealed elastic and soft swelling in the left alar base of the nose. Intraoral examination demonstrated a slight swelling of the upper left mucolabial fold region, and fluctuation was detected. About 5 ml yellow opaque and mucous fluid was aspirated by puncture. The contrast radiogram revealed an oval radiopaque shadow in the left piriform opening of the maxilla.
The clinical diagnosis was left nasoalveolar cyst. The lesion was surgically excised under local anesthesia. The patient was in good condition after the operation.
Microscopic examination revealed a cystic lining with ciliated columnar epithelium. Scanning electron microscopic examination demonstrated that inner surface of cyst walls consisted of ciliated cells with slender cilla and nonciliated cells with microvilli.
The histopathological diagnosis was nasoalveolar cyst.View full abstractDownload PDF (11868K)
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