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Frictional forces in the fixed orthodontic appliance during tooth movement

Cho MS, Kim JC

  • KMID: 1977167
  • Korean J Orthod.
  • 1990 Jul;20(2):409-417.
Tooth movement would be impeded by frictional force arised between archwire and tube, bracket or elastics in the fixed orthodontic appliances, which could be changed variably by such several factors...
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A roentgenocephalometric study of craniofacial skeletal characteristics of Korean normal occlusion by Moyers' analysis

Hong YR, Lee KS

  • KMID: 1977166
  • Korean J Orthod.
  • 1990 Jul;20(2):391-407.
This study was performed to establish the cephalometric standards and to observe the nature of anatomic fit in the internal structural relationship of the craniofaciodental complex of the normal Korean...
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The effects of heat treatment on mechanical properties and metal release from heat-treated orthodontic archwires

Choi CM, Rhee BT

  • KMID: 1977165
  • Korean J Orthod.
  • 1990 Jul;20(2):381-390.
The purpose of this study was to evaluate the effects of heat treatment on mechanical properties in 0.016" x 0.022" blue Elgiloy wires and to measure the amounts of nickel...
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An experimental study on the effect of the mandibular retractive force on the mandibular condyle of growing young dog

Lim YK, Yang WS

  • KMID: 1977164
  • Korean J Orthod.
  • 1990 Jul;20(2):363-379.
The purpose of this study was to evaluate the effects of the mandibular retractive force on the mandibular condyle of growing dog. The experimental animals were six mongrel dogs of...
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A study of bracket base (in-and-out) in Korean

Yang JW, Lee DJ

  • KMID: 1977163
  • Korean J Orthod.
  • 1990 Jul;20(2):355-361.
This study was undertaken to finish the design of the adequate preadjusted bracket in Korean. The labio-lingual & bucco-lingual width of tooth & in-and-out of the bracket base was studied...
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A study on the vertical dysplasia in the skeletal class iii malocclusion

Shin MC

  • KMID: 1977162
  • Korean J Orthod.
  • 1990 Jul;20(2):333-354.
This study was designed to analyse vertical dysplasia such as open bite or deep bite in persons with skeletal Class III malocclusion. The subjects consisted of 60 control patients, 40...
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A study on the initial tissue changes to intermittennt force in dogs

Sohn HB, Park YC

  • KMID: 1977161
  • Korean J Orthod.
  • 1990 Jul;20(2):319-331.
The purpose of this study was to help examining force system, optimal treatment, and prevention of relapse. Orthodontic force was generated by electromagnets, therefore duration could be freely controlled, and...
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The effects of induced nasal obstruction on the craniofacial skeleton of the growing rats

Park WK, Lee KS

  • KMID: 1977160
  • Korean J Orthod.
  • 1990 Jul;20(2):305-318.
The purpose of this study was to investigate the effects of induced nasal obstruction on the craniofacial skeleton of the growing rats. Ninety five Sprague-Dawley rats of four weeks of...
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A study on the morphologic differences between long-face adults and normal-face adults on the lateral and P-A cephalograms

Kim HD, Sohn BW

  • KMID: 1977159
  • Korean J Orthod.
  • 1990 Jul;20(2):293-304.
The purpose of this study was to describe the morphologic differences between long-face adults and normal-face adults on the lateral and P-A cephalograms. Long-face and normal-face subifects were selected clinically,...
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A study of bonding strength and change of bracket slot width of chemically recycled metal brackets

Ko YS, Lee DJ

  • KMID: 1977158
  • Korean J Orthod.
  • 1990 Jul;20(2):283-291.
The purpose of this study was to measure and compare tensile and shear strength for 4 types of new direct-bonding brackets and same brackets after recycling and to evaluate the...
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A photoelastic study of the stress distribution by multiloop edgewise arch wire

Yeom JB, Rhee BT

  • KMID: 1977157
  • Korean J Orthod.
  • 1990 Jul;20(2):267-280.
The purpose of this study was to investigate the force mechanism of Multiloop Edgewise Arch Wire and the intensity and distribution of stresses with vertical and intermaxillary elastics. The obtained...
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The effects of Prostaglandin E2 and Indomethacin on quantitative change in collagen and chondroitin sulfate in the alveolar bone of rats

Park SJ, Sohn BW

  • KMID: 1977156
  • Korean J Orthod.
  • 1990 Jul;20(2):247-266.
The alveolar bone remodeling is essential in tooth movement by orthodontic forces. The collagen and chondroitin sulfate are acting as an important roles in bone remodeling. This study was performed...
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Autoradiographic study of the collagenase-influence on the rat periodontium after experimental tooth movement

Hong SJ, Suhr CH

  • KMID: 1977155
  • Korean J Orthod.
  • 1990 Jul;20(2):227-245.
The purpose of this study was to analyze the reorganization of periodontal ligament after collagenase treatment with autoradiography. The author compared the collagenase-treated experimental group and no-treated experimental group with...
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A statistical study on the effect of tooth size and dental arch size upon the crowding

Ahn BK

  • KMID: 1977154
  • Korean J Orthod.
  • 1990 Jul;20(2):217-226.
The purposes of this study were to clarify the effect of tooth size and arch size upon the crowding. 175 upper casts were measured and following conclusions were made. 1. Tooth...
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