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Basic Principles of Magnetic Resonance Imaging

Cho BH

  • KMID: 1999511
  • J Korean Acad Oral Maxillofac Radiol.
  • 1999 Feb;29(1):7-20.
Magnetic resonance imaging with its superior soft tissue contrast resolution and absence of beam hardening artifacts, combined with its ability to perform multiplanar imaging, is now effective tool in diagnostic...
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A Comparative Study of Spiral Tomograms with Different Slice Thicknesses in Dental Implant Planning

Yoon SJ

  • KMID: 1999523
  • J Korean Acad Oral Maxillofac Radiol.
  • 1999 Feb;29(1):191-199.
PURPOSE: To know whether there would be a difference among spiral tomograms of different slice thicknesses in the measurement of distances which are used for dental implant planning. MATERIALS AND METHODS:...
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Evaluation of Teeth and Supporting Structures on Digital Radiograms using Interpolation Methods

Koh KJ, Chang KW

  • KMID: 1999516
  • J Korean Acad Oral Maxillofac Radiol.
  • 1999 Feb;29(1):65-85.
OBJECTIVES: To determine the effect of interpolation functions when processing the digital periapical images. MATERIALS AND METHODS: The digital images were obtained by Digora and CDR system on...
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Absorbed dose in the full-mouth periapical radiography, panoramic radiography, and zonography

Choi SC, Choi HM

  • KMID: 1999528
  • J Korean Acad Oral Maxillofac Radiol.
  • 1999 Feb;29(1):255-260.
PURPOSE: The objective of this study was to evaluate the possibility of substitution of the zonography for the full-mouth periapical radiography in aspect of radiation protection. MATERIALS AND METHODS: Rando phantom...
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Comparison of digital radiometric featuresbetween radicular cysts and periapical granulomas

Jin YH, Lee KI

  • KMID: 1999527
  • J Korean Acad Oral Maxillofac Radiol.
  • 1999 Feb;29(1):241-254.
The purpose of this study was to investigate whether a radiometric analysis of radicular cysts and periapical granulomas is useful in the differential diagnosis. In this experiment, twenty-nine periapical radiographs...
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Sialography And Salivary Scan Study Of Salivary Diseases

Park YK, Hwang EH, Lee SR

  • KMID: 1999522
  • J Korean Acad Oral Maxillofac Radiol.
  • 1999 Feb;29(1):175-189.
The purpose of this study was to established the characteristic radiographic features in salivary gland diseases by means of sialography and scintigraphy. Sialograms and scintigrams with diseases of salivary gland...
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Experimental Study on the Radiosensitivity and Chemosensitivity of A-431 Cell Line

Hong SW, Choi ES, Koh KJ

  • KMID: 1999534
  • J Korean Acad Oral Maxillofac Radiol.
  • 1999 Feb;29(1):327-339.
OBJECTIVES: The purpose of this study was to aid in the prediction of tumor cell tolerance to radiotherapy and/or chemotherapy. MATERIALS AND METHODS: Human epidermoid carcinoma A-431 cell...
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Fractal Dimension Of Ct Images Of Normal Parotid Glands

Lee SJ, Heo MS, You DS

  • KMID: 1999524
  • J Korean Acad Oral Maxillofac Radiol.
  • 1999 Feb;29(1):203-208.
PURPOSE: This study was to investigate the age and sex differences of the fractal dimension of the normal parotid glands in the digitized CT images. MATERIALS AND METHODS: The six groups,...
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Quality Assessment of Film Processing Chemicals in Dentistry

Han MR, Kang BC

  • KMID: 1999532
  • J Korean Acad Oral Maxillofac Radiol.
  • 1999 Feb;29(1):299-308.
PURPOSE: The purpose of this study was to compare the qualities of the four different processing chemicals(solutions). MATERIALS AND METHODS: With EP 21 films(Ektaspeed plus film, Kodak Co., USA), nine...
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A Comparative Study of Radiographic Images on Normal Anatomical Structures

Choi HH, Choi EH, Kim JD

  • KMID: 1999531
  • J Korean Acad Oral Maxillofac Radiol.
  • 1999 Feb;29(1):283-297.
PURPOSE: To compare radiographic images of Digora system and Ektaspeed Plus film obtained from normal adults. MATERIALS AND METHODS: Storage phosphor plate(SPP) was placed in a film holder...
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A Comparative Study of Quantitative Assessment of Bone Mineral Density of Mandible

Park WK, Kim JD

  • KMID: 1999521
  • J Korean Acad Oral Maxillofac Radiol.
  • 1999 Feb;29(1):161-173.
This study was performed to compare the bone mineral densities measured at mandibular premolar area by copper-equivalent image and hydroxyapatite phantom with those measured at radius by dual energy absorptiometry...
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A Study on the Visual System of the Digital Periapical Images

Choi ES, Koh KJ

  • KMID: 1999529
  • J Korean Acad Oral Maxillofac Radiol.
  • 1999 Feb;29(1):261-274.
OBJECTIVES: The purpose of this study was to evaluate the optimal distance and angle of observers by modulation transfer functions(MTFs) and receiver operating characteristics(ROCs). MATERIALS AND METHODS: Digital...
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Comparison of the clinical examination with the panoramic radiography in the diagnosis of dental caries

Choi HM

  • KMID: 1999530
  • J Korean Acad Oral Maxillofac Radiol.
  • 1999 Feb;29(1):275-282.
PURPOSE: The objective of this study was to compare clinical examination of of dental caries and secondary caries with panoramic examination, and to examine bone lesions and dental anomaly...
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Simultaneous occurrence of an Odontogenic Myxoma and a Squamous Cell Carcinoma of the Mandible

Kim BS, Lee SR, Hwang EH

  • KMID: 1999535
  • J Korean Acad Oral Maxillofac Radiol.
  • 1999 Feb;29(1):341-355.
Squamous cell carcinoma is the most common type of oral cancer and odontogenic myxoma is relatively uncommon benign tumor of mesenchymal origin. There are, to our knowledge, no prior reports...
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The Experimental Study Of Effects Of Irradiation On Osseointegration

Park KS, Hwang EH, Lee SR

  • KMID: 1999519
  • J Korean Acad Oral Maxillofac Radiol.
  • 1999 Feb;29(1):119-147.
The purpose of this study was to investigate the effects of the Co-60 gamma irradiation on the osseointegration. 2.0 mm titanium alloy screw implants were placed in the tibial...
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Desmoplastic Fibroma Of The Mandible

Choi HJ, Park YH, Choi KS

  • KMID: 1999536
  • J Korean Acad Oral Maxillofac Radiol.
  • 1999 Feb;29(1):357-365.
Desmoplastic fibroma is a rare, benign intraosseous fibroblastic tumor, which is locally aggressive. It is osseous counterpart of soft tissue fibromatosis. The authors experienced the patient who complained persistent mouth...
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Studies On Quantitative Analysis Of Salivary Gland Using Computed Tomography

Lee SC, Lee SS, Heo MS, Choi SC, Park TW, You DS

  • KMID: 1999525
  • J Korean Acad Oral Maxillofac Radiol.
  • 1999 Feb;29(1):209-221.
PURPOSE: The purpose of this study was to calculate the size and CT number of both normal parotid and submandibular gland, and evaluate its relation to sex, age and obesity...
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Radiographic Differential Diagnosis Between The Fibrous Dysplasia And The Ossifying Fibroma

Choi KS

  • KMID: 1999515
  • J Korean Acad Oral Maxillofac Radiol.
  • 1999 Feb;29(1):55-63.
The author observed and compared the radiographic features of 49 cases of the fibrous dysplasia and 14 cases of the ossifying fibroma in the osteoblastic or mature stage radiologically and...
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An Assessment on Cu-Equivalent Image of Digital Intraoral Radiography

Kim JD

  • KMID: 1999513
  • J Korean Acad Oral Maxillofac Radiol.
  • 1999 Feb;29(1):33-42.
Geometically standardaized dental radiographs were taken. We prepared Digital Cu-Equivalent Image Analyzing System for quantitative assessment of mandible bone. Images of radographs were digitized by means of Quick scanner and...
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The remodeling of the posterior edentulous mandible as illustrated by computed tomography

Park CS

  • KMID: 1999514
  • J Korean Acad Oral Maxillofac Radiol.
  • 1999 Feb;29(1):43-53.
PURPOSE: The aim of this study was to analyze radiologically the location and course of the mandibular canal and to observe the alveolar and basal bone changes during the remodeling...
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