Earticle

초록

영어

Purpose: The purpose of this study was to compare the tensile strength and mechanical properties of orthodontic wire joints made by gas soldering and laser welding, with and without filling material, to identify the effectiveness and potential clinical application of laser welded orthodontic wires. Methods: Three joint configurations of orthodontic wire were used: diameter 0.9 to 0.9 wire, diameter 0.9 to 0.5 wire and diameter 0.9 wire to band. The joints were made using three different methods: gas soldering, laser welding with and without filling material. For each kind of joint configuration or connecting method 7 specimens were carefully produced. The tensile strengths were measured with a universal testing machine (Zwick/Roell, Instron, USA). The hardness measurements were carried out with a hardness tester(Future-Tech Co. Tokyo, Japan). Data were analyzed by AVOVA(p= .05) and Turkey HD test(p= .05). Results: In all cases, gas soldering joints were ruptured on a low level on tensile bonding strength. Significant differences between laser welding and gas soldering(p< .05) were found in each joint configuration. The highest tensile strength means were observed for laser welding, with filling material, of 0.9 to 0.9 wire joint. Conclusion: In conclusion, the elastic modulus and tensile strength means of laser soldering with filling material were the highest, and the tensile strength means of laser soldering were higher than those of gas soldering.

목차

Abstract
 Ⅰ. 서론
 Ⅱ. 연구 방법
  1. 실험 재료
  2. 시편 제작
  3. 실험 방법
 Ⅲ. 결과
  1. 인장강도 측정 결과
  2. 탄성계수
  3. 경도 측정 결과
 Ⅳ. 고찰
 Ⅴ. 결론
 REFERENCES

키워드

저자

• 이혜진 [ Hye-Jin Lee | 부산가톨릭대학교 보건과학대학 치기공학과 ]
• 홍민호 [ Min-Ho Hong | 부산가톨릭대학교 보건과학대학 치기공학과 ] 교신저자

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  대한치과기공학회지 [THE JOURNAL OF KOREAN ACADEMY OF DENTAL TECHNOLOGY]

• 간기

  계간

• pISSN

  1229-3954

• eISSN

  2288-5218

• 수록기간

  1979~2026

• 등재여부

  KCI 등재

• 십진분류

  KDC 515 DDC 617