Fracture Resistance of K3 Nickel-Titanium Files Made from Different Thermal Treatments
The purpose of this study was to compare fracture resistances of K3 nickel-titanium files made from different thermal treatments. K3 (SybronEndo, Orange, CA), K3XF (SybronEndo), and experimentally heat treated K3 (K3H) were used. For the cyclic fatigue test, the samples were rotated with up-and-down...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2016-01-01
|
| Series: | Bioinorganic Chemistry and Applications |
| Online Access: | http://dx.doi.org/10.1155/2016/6374721 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832561876195606528 |
|---|---|
| author | JinWook Choi Soram Oh Yu-Chan Kim Kwang-Koo Jee KeeYeon Kum SeokWoo Chang |
| author_facet | JinWook Choi Soram Oh Yu-Chan Kim Kwang-Koo Jee KeeYeon Kum SeokWoo Chang |
| author_sort | JinWook Choi |
| collection | DOAJ |
| description | The purpose of this study was to compare fracture resistances of K3 nickel-titanium files made from different thermal treatments. K3 (SybronEndo, Orange, CA), K3XF (SybronEndo), and experimentally heat treated K3 (K3H) were used. For the cyclic fatigue test, the samples were rotated with up-and-down motion in the artificial canal with the curvature of 60 degrees until the fracture occurred. The number of cycles to fracture (NCF) was measured. For the torsional fracture test, the samples were tightly bound and rotated until the fracture occurred. Elastic modulus (EM), ultimate torsional strength (UTS), and angle of rotation to fracture (ARF) were measured. The results were statistically analyzed by one-way ANOVA. The NCF of K3H was higher than those of K3 and K3XF (P<0.05). The EM of K3XF and K3H was lower than that of K3 (P<0.05). There was no significant difference in UTS. The ARF of K3XF was higher than that of K3 (P<0.05). K3XF and K3H showed more flexibility than K3. The maximum torsional angle of K3XF was higher than that of K3, but there was no significant difference on the UTS in all three groups. |
| format | Article |
| id | doaj-art-d837522ceba74aa098d10392900b88ce |
| institution | Kabale University |
| issn | 1565-3633 1687-479X |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Bioinorganic Chemistry and Applications |
| spelling | doaj-art-d837522ceba74aa098d10392900b88ce2025-02-03T01:24:08ZengWileyBioinorganic Chemistry and Applications1565-36331687-479X2016-01-01201610.1155/2016/63747216374721Fracture Resistance of K3 Nickel-Titanium Files Made from Different Thermal TreatmentsJinWook Choi0Soram Oh1Yu-Chan Kim2Kwang-Koo Jee3KeeYeon Kum4SeokWoo Chang5Department of Conservative Dentistry, School of Dentistry, Kyung Hee University, Seoul, Republic of KoreaDepartment of Conservative Dentistry, School of Dentistry, Kyung Hee University, Seoul, Republic of KoreaBiomedical Research Institute, Korea Institute of Science and Technology, Seoul, Republic of KoreaPost-Silicon Semiconductor Institute, Korea Institute of Science and Technology, Seoul, Republic of KoreaDepartment of Conservative Dentistry, Dental Research Institute, Seoul National University Dental Hospital, Seoul National University School of Dentistry, Seoul, Republic of KoreaDepartment of Conservative Dentistry, School of Dentistry, Kyung Hee University, Seoul, Republic of KoreaThe purpose of this study was to compare fracture resistances of K3 nickel-titanium files made from different thermal treatments. K3 (SybronEndo, Orange, CA), K3XF (SybronEndo), and experimentally heat treated K3 (K3H) were used. For the cyclic fatigue test, the samples were rotated with up-and-down motion in the artificial canal with the curvature of 60 degrees until the fracture occurred. The number of cycles to fracture (NCF) was measured. For the torsional fracture test, the samples were tightly bound and rotated until the fracture occurred. Elastic modulus (EM), ultimate torsional strength (UTS), and angle of rotation to fracture (ARF) were measured. The results were statistically analyzed by one-way ANOVA. The NCF of K3H was higher than those of K3 and K3XF (P<0.05). The EM of K3XF and K3H was lower than that of K3 (P<0.05). There was no significant difference in UTS. The ARF of K3XF was higher than that of K3 (P<0.05). K3XF and K3H showed more flexibility than K3. The maximum torsional angle of K3XF was higher than that of K3, but there was no significant difference on the UTS in all three groups.http://dx.doi.org/10.1155/2016/6374721 |
| spellingShingle | JinWook Choi Soram Oh Yu-Chan Kim Kwang-Koo Jee KeeYeon Kum SeokWoo Chang Fracture Resistance of K3 Nickel-Titanium Files Made from Different Thermal Treatments Bioinorganic Chemistry and Applications |
| title | Fracture Resistance of K3 Nickel-Titanium Files Made from Different Thermal Treatments |
| title_full | Fracture Resistance of K3 Nickel-Titanium Files Made from Different Thermal Treatments |
| title_fullStr | Fracture Resistance of K3 Nickel-Titanium Files Made from Different Thermal Treatments |
| title_full_unstemmed | Fracture Resistance of K3 Nickel-Titanium Files Made from Different Thermal Treatments |
| title_short | Fracture Resistance of K3 Nickel-Titanium Files Made from Different Thermal Treatments |
| title_sort | fracture resistance of k3 nickel titanium files made from different thermal treatments |
| url | http://dx.doi.org/10.1155/2016/6374721 |
| work_keys_str_mv | AT jinwookchoi fractureresistanceofk3nickeltitaniumfilesmadefromdifferentthermaltreatments AT soramoh fractureresistanceofk3nickeltitaniumfilesmadefromdifferentthermaltreatments AT yuchankim fractureresistanceofk3nickeltitaniumfilesmadefromdifferentthermaltreatments AT kwangkoojee fractureresistanceofk3nickeltitaniumfilesmadefromdifferentthermaltreatments AT keeyeonkum fractureresistanceofk3nickeltitaniumfilesmadefromdifferentthermaltreatments AT seokwoochang fractureresistanceofk3nickeltitaniumfilesmadefromdifferentthermaltreatments |