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Volume 18 (1978)
- Issue 3 Pages 271-
- Issue 2 Pages 123-
- Issue 1 Pages 1-
Volume 18, Issue 2
Displaying 1-11 of 11 articles from this issue
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Shoichi ANDO, Koji SHINODA, Takenori NOIKURA, Kiminobu INABA, Tohru OH ...1978 Volume 18 Issue 2 Pages 123-129
Published: August 30, 1978
Released on J-STAGE: June 03, 2011
JOURNAL FREE ACCESSAs a diagnostic aid, the authors have deviced a new method by combining intraoralfluoroscopy and an super-sensitive TV camera system which reduced the radiation doses to a level of one millisecond the duration of one or two pulses of the alternating current cycle.
The real time system enabled an excellent intraoral view by means of a TV monitoring device without processing films.With the aid of the scan converter memory unit, the image can be “frozen” for approximately two hours, thus allowing the interpretater time for image analysis.A permanent record can be made routine photography, Polaroid Rand photography and/or videocorder.
The results were as follows:
1) This fluoroscopic screen (∅20mm) is attached to the end of intraoral endoscope, on which is formed the image of teeth and/or alveolar bones.
2) This fluoroscopic image of the screen is instantly transformed into electric signals through a super sensitive TV vidicon tube SIT, which are led to a scan converter as input and are memorized there.
3) The frozen image transfered onto the screen of a monitor TV connected to the scan converter which send out the memorized signal successively.
4) The image on the TV monitor is endowed with varieties of latitude: i, e, either a positive or negative picture is obtained by a switch, and gain or brightness control dials, on the TV monitors make possible the successive changes in brightness.Such changes in imagequality enriches a TV image obtained by a single exposure, and make it an equivalent of pulural conventional radiograms from the view point of total diagnostic information.
5) This new combination method of intraoral fluoroscopic image and TV monitoring system needs only an exposure of60kVp, 5mA with duration of0.01-0.02seconds for the diagnosis of adult anteriors and the duration of0.02-0.04seconds for posteriors.
The amount of dosage necessary for the present method ranges from1/40-1/80 (upper anteriors) to1/30-1/60 (lower posteriors) of the dosage required for one exposure in conventional radiography.View full abstractDownload PDF (4987K) -
An Application of the Video tape recorder to the Observation on the Tongue Movements during Pronunciation (1st report)Hisako KONDO, Tadashi ADACHI, Akira YAMAMOTO, Yota GOSHIMA, Mamoru TAN ...1978 Volume 18 Issue 2 Pages 130-134
Published: August 30, 1978
Released on J-STAGE: October 21, 2010
JOURNAL FREE ACCESSTongue movement during pronunciation was observed, using X-ray TV system. Observations were made on the position, form and movement of the tongue in oral cavity. Radiographic images were recorded by video tape recorder with video timer. The relationship between the time and the pathway of onset, intermediate and arrest of the movement were confirmed with slow tape speed and photographs at each stage were taken in stopmotion with Polaroid Land camera. The images of photographs were superimposed on the tracing papers, and comparison was made.In addition, degree of mandibular movement and upper and lower lips contact were observed. The results were approximately similar to those other reports.View full abstractDownload PDF (3103K) -
PART 2. DEGLUTITION (1st report)Kaoru TANJI, Tadashi ADACHI, Akira YAMAMOTO, Yota GOSHIMA, Mamoru TANA ...1978 Volume 18 Issue 2 Pages 135-137
Published: August 30, 1978
Released on J-STAGE: October 21, 2010
JOURNAL FREE ACCESSThe authors have been studied on functional analysis in oral radiology using X-ray TV system.
In this study, the television image of the motion in deglutition was observed.There are a few dissimillarity with the results and observations in the past papers, especially on the movement of epiglottis.View full abstractDownload PDF (256K) -
Takeshi OHBA, Kenji ASO, Hidetaka NISHIOKA, Kunio SHIMIZU1978 Volume 18 Issue 2 Pages 138-142
Published: August 30, 1978
Released on J-STAGE: October 21, 2010
JOURNAL FREE ACCESSStone lying in the nasal cavity are not uncommon, but the occurence of stones in the maxillary sinus is rare.In this report, a case of maxillary sinus stone suspected radiologically, which was accidentally found in a patient suffered from maxillary sinus carcinoma, is presented.
In this instance, we could not prove eventually the stone by means of operation or some procedure.View full abstractDownload PDF (2808K) -
Koji HASHIMOTO, Kazuo IWAI, Tohru OHKI, Koji SHINODA1978 Volume 18 Issue 2 Pages 143-148
Published: August 30, 1978
Released on J-STAGE: October 21, 2010
JOURNAL FREE ACCESSAuthors found two cases of serious destruction of alveolar crests, complicated with hyperkeratosis of the palms and soles of a 4-year-old boy and a 27-year-old woman.The final diagnosis was the cases as Papillon-Lefevre syndrome, and we reported them with a review.
Their x-ray findings were as follows.
Case 1: The alveolar crests in_??_ has almost absorbed horizontally except _??_Those deciduous teeth were affected from C1 to C4.
Orthopantomographic findings showed succesors and other permanent teeth were at the first stage of calcification.There were no findings on x-ray skeletal survey. Case 2: Entire teeth were missed their suporting tissues by alveolar bone destruction.In spite of the violency of bone affection, there were recognized the condensing phenomenon in remaining area of mandible.View full abstractDownload PDF (4658K) -
Atsushi IKESHIMA, Hirotsugu YAMAMOTO1978 Volume 18 Issue 2 Pages 149-161
Published: August 30, 1978
Released on J-STAGE: October 21, 2010
JOURNAL FREE ACCESSThe first case report on Basal Cell Nevi Syndrome was publicized by Jarish in 1894, and a systematic study report on this syndrome was made by Gorlin and his associates in 1965.Since then many cases have been reported in foreign countries but a little in Japan.
The main symptoms of this syndrome are Basal Cell Nevi appeared in the infancy or after the puberty, and the innate malformation of bones and cysts of jaws. This syndrome is also called as Basal Cell Nevi Jaw Cyst Syndrome or Basal Cell Epithelioma Syndrome. This syndrome has a tendency to be seen in the blood relationship, and it is considered as a hereditary disease of a dominant autosome.
Since we have happened to meet the cases of mother and her daughter who hold jaw cysts, abnormality of sella turcica, eminence of the frontal bone and large cranium, we report these cases in connection with Basal Cell Nevi Syndrome.View full abstractDownload PDF (15394K) -
Teruko MATSUZAWA, Yota GOSHIMA, Akira YAMAMOTO, Tadashi ADACHI, Tadash ...1978 Volume 18 Issue 2 Pages 162-164
Published: August 30, 1978
Released on J-STAGE: October 21, 2010
JOURNAL FREE ACCESSThere are some difficulties on the extra-oral radiographic interpretation for the beginners. The essential factor of those difficulties may arise from that the radiographic image of three dimensional skull structures project on the two dimensional film.
The intricate relationship of the extraoral radiographic image results from the superimposition of the bony structures of the skull.It should be favorable that one could observe the different parts of bony structures through the point where central axis of useful x-ray beam was directed.
The authors have tried to make a transparent skull specimen which was made of a fluid acrylic rasin for an aid of educational materials.View full abstractDownload PDF (2440K) -
[in Japanese]1978 Volume 18 Issue 2 Pages 165-167
Published: August 30, 1978
Released on J-STAGE: October 21, 2010
JOURNAL FREE ACCESSDownload PDF (378K) -
[in Japanese], [in Japanese], [in Japanese]1978 Volume 18 Issue 2 Pages 168
Published: August 30, 1978
Released on J-STAGE: October 21, 2010
JOURNAL FREE ACCESSDownload PDF (1245K) -
1978 Volume 18 Issue 2 Pages 186-262
Published: August 30, 1978
Released on J-STAGE: October 21, 2010
JOURNAL FREE ACCESSDownload PDF (8141K) -
1978 Volume 18 Issue 2 Pages 263-266
Published: August 30, 1978
Released on J-STAGE: October 21, 2010
JOURNAL FREE ACCESSDownload PDF (525K)
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