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1.Transvaginal ultrasonography on the high risk patients of early pregnancy failure.

Yu Il LEE ; Jung Soon CHANG

Korean Journal of Obstetrics and Gynecology 1992;35(9):1345-1357

2.Distribution of the muscarinic receptors and characterization in the brain of wistar rats and spontaneously hypertensive rats(SHR strain) by digital autoradiography.

In SOHN ; Myung Chul LEE ; Chang Soon KOH

Korean Journal of Nuclear Medicine 1993;27(1):28-34

8.DIMENSIONAL ACCURACY OF DENTURE BASE USING LASER SCANNER OF REVERSE ENGINEERING TECHNIC.

Si Hyuk LEE ; Ik Tae CHANG ; Soon Ho YIM

The Journal of Korean Academy of Prosthodontics 1999;37(2):167-184

The purpose of this study was to evaluate and compare the fit of denture bases processed by injection pressing technic using laser scanner of reverse engineering technic. The auther duplicated 20 maxillary edentulous models and 20 mandibular edentulous models, which were scanned on HYSCAN 45C 3D SCANNER(Hymarc Co., Canada). The scanned data was stored in the personal computer using SURFACER (Imageware Co., U.S.A.) software program. After 40 dentures were cured by PERform Inkovac system. SR-Ivocap system, Palajet system, and Sulfon system, they were stored in water at room temperature for 24 hours. The dentures were scanned on HYSCAN 45C 3D SCANNER(Hymarc Co. Canada). The scanned data were stored in the personal computer using SURFACER (Imageware Co., U.S.A) software program. By overlapping two images using the same program, the fit between two surfaces was scaled by positive and negative errors. The obtained results were as follows : 1. In the upper denture, most of the positive errors occurred on the lingual side of anterior alveolar ridge and the negative errors were on the flange of denture bases. 2. In the lower denture, most of the positive errors occurred on the inner side of lingual flange and the negative errors were on the border of anterior labial flange areas. 3. There were no statistical differences among the positive errors of the four types of inject-ion denture curing methods and also no statistical differences between negative errors except only in negative maximum errors. 4. In PRERform system and SR-Ivocap system, they have the tendency of inaccurate fit lower denture bases comparing to that of upper denture bases. 5. The negative error scales were greater than the positive error scales in all types of inject-ion denture curing methods.
Alveolar Process ; Denture Bases* ; Dentures* ; Microcomputers ; Water ; Weights and Measures

9.Studies on preparation of 99mTc complexes of methionine isomers.

Ok Doo AWH ; Hee Soon CHANG ; Dong Sun LEE

Korean Journal of Nuclear Medicine 1992;26(1):140-146

10.Clinical Status of Apnea in Prematurity.

Soon Hee KIM ; Chang Soo RA ; Keun LEE

Journal of the Korean Pediatric Society 1986;29(7):60-66

1.Transvaginal ultrasonography on the high risk patients of early pregnancy failure.

2.Distribution of the muscarinic receptors and characterization in the brain of wistar rats and spontaneously hypertensive rats(SHR strain) by digital autoradiography.

3.Two Cases of Cutaneous Leishmaniasis.

4.A Case of Thin Basement Membrane Nephropathy.

5.Brain asymmetry in visual recognition of Hangul and Chinese words.

6.Brain asymmetry in visual recognition of Hangul and Chinese words.

7.Receptors for murine monoclonal antibodies on the normal blood cells.

8.DIMENSIONAL ACCURACY OF DENTURE BASE USING LASER SCANNER OF REVERSE ENGINEERING TECHNIC.

9.Studies on preparation of 99mTc complexes of methionine isomers.

10.Clinical Status of Apnea in Prematurity.

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