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A study on the changes of frictional force between bracket and orthodontic wire with time in artificial saliva

Kwak C, Kim JB, Son WS

  • KMID: 2074712
  • Korean J Orthod.
  • 1993 Jun;23(2):283-294.
The friction of orthodontic appliances is recognized to be detrimental to tooth movement. The purpose of this study was to determine the magnitude of frictional force changes between bracket(018"X025" solt)...
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A study of the correlations between the tongue and oral cavity volume in the skeletal mandibular prognathism

Choi YS, Son WS

  • KMID: 2074711
  • Korean J Orthod.
  • 1993 Jun;23(2):275-282.
When mandibular prognathic patients are operated orthognathic surgery which reduce the oral cavity volume, tongue volume should be harmonized with oral cavity volume to be changed because prevent the relapse...
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A finite element analysis of the center of resistance of a maxillary first molar

Cho JH, Lee KS, Park YG

  • KMID: 2074710
  • Korean J Orthod.
  • 1993 Jun;23(2):263-273.
The purpose of this study was to analyse the center of resistance of the maxillary first molar using the 3-dimension finite element method. An extracted maxillary first molar of normal...
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Growth changes in external nose of the Korean people from 8 to 16 years old

Park HK, Kyung HM, Kwon OW

  • KMID: 2074709
  • Korean J Orthod.
  • 1993 Jun;23(2):249-261.
This study was conducted to examine the growth change in external nose according to age which plays an important role in determining the facial profile, by analysing the biennial serial...
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Effects of Interferon-gamma on collagen and fibronectin synthesis in primary cultured periodontal ligament cells

Kim GS, Sung JH, Choi JY, Ryou HM

  • KMID: 2074708
  • Korean J Orthod.
  • 1993 Jun;23(2):229-248.
Interferon-gamma has been suggested as a cytokine of connective tissue stabilizer. In addition, it has also been demonstrated that this cytokine inhibited bone remodeling activities of the bone derived cells....
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Clinical consideration on using the elastic "tie backs" during space closure

Cho KS, Chun YS

  • KMID: 2074707
  • Korean J Orthod.
  • 1993 Jun;23(2):217-227.
Preadjusted appliance, following the original concept of the Andrews Straight-Wire appliance, became increasingly common in the 1980s. In six phases of treatment, anchorage control, leveling and aligning, overbite control, overjet...
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A histologic and autoradiographic study on the early changes in the movements of rat incisors

Yoo KW, Kim SC, Kook YA

  • KMID: 2074706
  • Korean J Orthod.
  • 1993 Jun;23(2):199-216.
The purpose of this study was to quantify the biologic effects of the tensile forces from helical springs across the maxillary incisors on the periodontal tissues of rats. 39 Sprague-Dawlely...
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A radiographic study of tongue posture at rest position and during the phonation of /s/ in Class III malocclusion

Lee KH, Kim JC

  • KMID: 2074705
  • Korean J Orthod.
  • 1993 Jun;23(2):179-197.
Tongue posture at rest position of Class III malocclusion is very important in malocclusion and phonation. Because Class III malocclusion shows low tongue position, speech defect is commonly occured. This...
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Diagnosis and treatment plan of maxillary impacted canine

Kyung SH, Hwang CJ

  • KMID: 2074704
  • Korean J Orthod.
  • 1993 Jun;23(2):165-177.
Upper canine is important because it protects and maintains the stability of the dental arch and also, joins the anterior with the posterior teeth. The incidence of impaction of upper...
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An experimental study on the cytotoxicity of recycled brackets

Lim YK, Yang WS

  • KMID: 2074703
  • Korean J Orthod.
  • 1993 Jun;23(2):147-163.
The purpose of this study was to evaluated the cytotoxicity of brackets which were recycled thermally or chemically. New brackets and used brackets which had been in mouth for at...
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