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A study of the variances in pre-and post-treatment dental arch shapes in extraction and non-extraction cases

Han H, Cha KS

  • KMID: 2271235
  • Korean J Orthod.
  • 1991 Mar;21(1):223-238.
This study was carried out in order to find out the amount of tooth movement, the changes arch size and the changes in arch morphology following orthodontic treatment and to...
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An electromyographic investigation of masticatory muscles in normal occlusion and Class III malocclusion

Joo BH, Lee KS, Park YG

  • KMID: 2271234
  • Korean J Orthod.
  • 1991 Mar;21(1):197-221.
The purpose of the present study was to investigate the differences of EMG activity of the masticatory muscles between normal occlusion and Class III malocclusion during various jaw functions. 46...
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Isometric bite force and its relation to craniofacial morphology

Lee TW, Lee KS

  • KMID: 2271233
  • Korean J Orthod.
  • 1991 Mar;21(1):185-195.
This study was undertaken to grope the correlation of the maximal bite force and toothcraniofacial structure. The maximal bite force of 76 adult male, aged 18-28 (mean aged: 23.4 +/-...
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A study on the characteristics of craniofacial skeleton of Angle's Class II malocclusion cases

Lee JW, Cha KS

  • KMID: 2271232
  • Korean J Orthod.
  • 1991 Mar;21(1):171-183.
This investigation was designed to categorize Angle's class II malocclusion groups through analyzing horizontal and vertical components of craniofacial skeleton in Angle's class II malocclusion. The material selected for this...
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A soft tissue analysis on facial esthetics of Korean young adults

Baek SH, Yang WS

  • KMID: 2271231
  • Korean J Orthod.
  • 1991 Mar;21(1):131-170.
This study was designed to analyze morphological characteristics of Korean young adults, norms and standard deviation of variables, sexual differences, correlationship between each area of face and correlationship between hard...
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A cephalometric study on the soft tissue profile changes by orthodontic treatment in female patients

Park SK, Suhr CH

  • KMID: 2271230
  • Korean J Orthod.
  • 1991 Mar;21(1):113-130.
This study was undertaken to investigate soft tissue profile changes by orthodontic treatment in female patients. Traditional cephalometric appraisal yields data of dubious scientific value, the soft tissue profile forms...
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The effect of sodium fluoride and sodium orthovanadate on osteoblastic cell line MC3T3-E1 cells

Kim WJ, Chung KR

  • KMID: 2271229
  • Korean J Orthod.
  • 1991 Mar;21(1):97-111.
It is the aim of this study to investigate the effects of sodium fluoride and sodium orthovanadate upon the proliferation and activity of the osteoblast (MC3T3-E1 cells). MC3T3-E1 cells were...
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A study of root resorption and alveolar bone changes during tooth movement after treatment with etidronate disodium

Hwang CJ, Sohn BH

  • KMID: 2271228
  • Korean J Orthod.
  • 1991 Mar;21(1):77-92.
Many studies has been conducted concerning prevention of unnecessary complications such as root resorption during orthodontic tooth movement under various mechanical forces. Nowadays, the cause of the root resorption is...
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Experimental study on the anteriorly displaced temporomandibular joint meniscus in rabbit

Choi NJ, Chang YI

  • KMID: 2271227
  • Korean J Orthod.
  • 1991 Mar;21(1):53-76.
The study was designed to analyse the reorganization of the rabbit TMJ meniscus which was anteriorly displaced by surgery. The author compared the anteriorly displaced groups with control group. After...
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Mechanical analysis on the multiloop edgewise arch wire

Chun KM, Nahm DS

  • KMID: 2271226
  • Korean J Orthod.
  • 1991 Mar;21(1):31-47.
This study was designed to survey the stress distributions and deflections which were derived from MEAW by the computer-aided three dimensional finite element analysis of teeth and surrounding bone composed...
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Changes of the nasal airway resistance with rapid palatal expansion using rhinomanometry

Baik HS, Koh SH, Lee JG

  • KMID: 2271225
  • Korean J Orthod.
  • 1991 Mar;21(1):17-29.
The purpose of this study was to provide quantitative data describing the effect of rapid palatal expansion (RPE) on nasal airway resistance (NAR). RPE is an orthopedic procedure which is...
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Application of tin ion-plating to the orthodontic appliance

Kwon OW, Kim KH

  • KMID: 2271224
  • Korean J Orthod.
  • 1991 Mar;21(1):7-16.
To estimate the possibility of the application of TiN ion-plating to the orthodontic appliance, colorimetric properties, and characteristics of ion-plated film as well as adhesive strength of TiN film to...
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