- Analysis of force system developed by continuous straight archwire
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Choy KC, Sohn BH
- KMID: 1923657
- Korean J Orthod.
- 1996 Jun;26(3):281-290.
Determination of force system and prediction of side effects from unbent straight wire engaged in edgewise bracket is clinically very difficult because it is statically indeterminate system. This study is... -
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- Orthodontic traction of impacted tooth
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Kim KH, Choy KC, Lee JY, Kang CS
- KMID: 2141278
- Korean J Orthod.
- 1998 Dec;28(6):991-999.
Tooth impact on may lead to malocclusion, root resorption, cyst or aberrant changes in adjacent teeth Clinical and radiographic examinations are used to locate the impaction, and appropriate treatment plans... -
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- Semi-longitudinal study of growth and development of cranio-facial soft tissue of children aged from 3 to 11
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Park YC, Choy KC, Han HK
- KMID: 2271775
- Korean J Orthod.
- 1997 Dec;27(6):891-904.
Today's orthodontic treatment goals lie in functional esthetics, and the importance of the latter is increasing gradually in trend. Considering such, study on growth and development of soft as well... -
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- Malocclusion with congenital missing of lower incisors
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Kim KH, Choy KC, Chung KY, Yun HS
- KMID: 2141277
- Korean J Orthod.
- 1998 Dec;28(6):981-989.
Positions, angulation and mesiodistal dimension of lower incisors are important in esthetics, occlusion and post-treatment stability of lower arch. When lower incisor is congenitally missing, problems such as increased overjet... -
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- Factors affecting force system of orthodontic loop spring
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Choy KC, Kim KH, Park YC
- KMID: 1551720
- Korean J Orthod.
- 1999 Oct;29(5):511-519.
The shape of orthodontic retraction spring was varied and force system of each case was obtained using numerical analysis and verified with spring tester. The factors for obtaining biomechanically efficient... -
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- The effect of treatment timing on maxillary protraction treatment response: A comparison of prepubertal and pubertal patients
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Kim KH, Choy KC, Baik HS, Lee JH
- KMID: 2271704
- Korean J Orthod.
- 2002 Oct;32(5):301-312.
Treatment timing is a very important factor to consider in treating skeletal Class III patients by means of maxillary protraction. According to the literature maxillary protraction should be carried out... -
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- An experimental study on the stress distribution in the periodontal ligament
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Choy KC, Kim KH, Park YC, Han JY
- KMID: 2271862
- Korean J Orthod.
- 2001 Feb;31(1):15-24.
In order to achieve a desirable tooth movement, it is of great importance to control the M/F ratio and to know the location of the center of resistance. The purpose... -
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- Torsional moment of orthodontic wires
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Choy KC, Kim KH, Park YC, Kang CS
- KMID: 2074767
- Korean J Orthod.
- 2000 Aug;30(4):467-473.
system may include bending force in first and second orders and a torsional force in third order. Analytical and experimental studies on bending force have been introduced, but information about... -
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- The vertical changes of the lip and perioral soft tissue resulting from incisor retraction
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Kang CS, Kim KH, Choy KC
- KMID: 2271831
- Korean J Orthod.
- 2000 Apr;30(2):185-196.
Patients who want to reduce their lip protrusion usually estimate the severity of the lip protrusion on the frontal aspect. Most orthodontists have a perplexed experience of a reduced thin... -
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- Digital imaging of film-based cephalograms using a digital camera
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Wang SJ, Kim KH, Choy KC
- KMID: 2271950
- Korean J Orthod.
- 2004 Oct;34(5):448-457.
As computer programs for cephalometric analysis were developed in diagnosis & treatment planning, digital imaging of film-based cephalograms came to be needed. When a digital camera is used, a problem... -
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- The relationship between menarche and the ossification stages of the phalanx of the first and third finger
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Kim KH, Choy KC, Jung KY
- KMID: 2271902
- Korean J Orthod.
- 2002 Aug;32(4):265-274.
Among many maturation indicators of growing patients, menarche and skeletal maturity are useful to assess growth and development, and the changes of the first and third finger are relatively important... -
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- A study on horizontal reference planes in lateral cephalogram in Korean children
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kim KH, Choy KC, Lee JY
- KMID: 1551799
- Korean J Orthod.
- 1999 Apr;29(2):251-264.
Various types of horizontal reference planes are used for diagnosis, treatment planning and evaluation of treatment results. But these reference planes lack accuracy and repro- ducibility, and are mainly for... -
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- Cephalometric analysis of skeletal Class II malocclusion in Korean adults
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Kim KH, Choy KC, Yun HS
- KMID: 2271900
- Korean J Orthod.
- 2002 Aug;32(4):241-255.
This study was performed to evaluate horizontal and vertical characteristics according to lateral cephalometry of adult Korean skeletal Class II patients using a selected horizontal and vertical reference planes of... -
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- Cephalometric norms of the hard tissues of Korean for orthognathic surgery
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Kim KH, Choy KC, Kim HG, Park KH
- KMID: 2006030
- J Korean Assoc Oral Maxillofac Surg.
- 2001 Jun;27(3):221-230.
This study was performed to evaluate hard tissue cephalometric norms for Korean adults which can be implemented in surgical orthodontic treatment planning using selected horizontal reference plane especially for Koreans... -
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- Cephalometric norms of the soft tissues of Korean for orthognathic surgery
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Kim KH, Choy KC, Kim GK, Park KH
- KMID: 2006031
- J Korean Assoc Oral Maxillofac Surg.
- 2001 Jun;27(3):231-238.
This study was performed to evaluate soft tissue cephalometric norms for Korean adults which can be implemented in surgical orthodontic treatment planning using selected horizontal reference plane especially for Koreans... -
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