Orthodontic is important to apply the optimal orthodontic force. The orthodontic bracket is deformed and the stress caused by tension and torsion of the wire. In this study, using the ANSYS the material that is currently widely used in orthodontic bracket material of stainless steel, ceramic, titanium, polycarbonate, by applying the nitinol analyzed the strain and the stress distribution on the bracket side. Simulation results on the stress distribution and deformation, and it was found a difference of each material.

Abstract
 1. 서론
 2. 연구 방법
 3. 결과 및 고찰
 4. 결론
 References

• 정윤재(공주대학교 기계자동차공학부) | Yoon-jae Chung
• S. Ranjit(공주대학교 기계자동차공학부)
• 김원태(공주대학교 기계자동차공학부) | Won-tae Kim