|
KMID : 0362120100320020065
|
|
Journal of Technologic Dentistry
2010 Volume.32 No. 2 p.65 ~ p.74
|
|
|
Impact on the characteristics by heating temperature change during orthodontic wire solde
|
|
Lee Gyu-Sun
|
|
|
Abstract
|
|
|
Purpose : To understand the impact on the strength or restoration force by the change of heating temperature when soldering 18-8 stainless steel round wire which is the chrome-nickel class for dental orthodontic device production.
Methods : The following conclusions were made upon the results from tensile strength test, 3 point bending test, and bending fatigue test with 24 samples that had been applied with condition 1 (before heat treatment - natural) and condition 2 (after heat treatment - mooring 30 seconds after heating up to , , and ) to , , 18-8 stainless steel round wire (spring hard) by Jinsung Company.
Results : When it was heat-treated at , both and showed very low tensile strengths compared to the heat treated cases at and Yield strengths of both and showed very low compared to the heat treated cases at natural, , and , as well. Upon the results of 3 point bending test, the heat treated case at showed very low in both and , compared to the heat treated cases at natural, , and . Tensile strength of both and as well, showed very low compared to the heat treated cases at natural, , and . Upon the results of bending fatigue test, the heat treated case at showed the highest wave node resistance in both and .
Conclusion : This study concluded that heating temperature change during wire soldering impacts on the characteristics of orthodntic wire.
|
|
|
KEYWORD
|
|
|
orthodontic wire, 18-8 stainless steel wire, heat treatment, tensile strength test, 3 point bending test
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|
|