지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2014.9
- 수록면
- 215 - 222 (8page)
- DOI
- 10.14815/kjdm.2014.41.3.215
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초록· 키워드
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Various brands of thermoplastic gutta-percha (GP) obturation materials are on the market, and knowledge of their thermal behaviors is of a great interest to clinicians using warm GP technique. In this study, the thermal properties of eleven commercial brands of GP materials were investigated by differential scanning calorimetery (DSC) and thermogravimetric analysis (TGA). The relationship of the thermal properties of the tested materials to their resistance forces against the trigger squeezing action was also evaluated. From the DSC analysis results, all products demonstrated thermal behaviors of typical beta-phase gutta-percha showing major endothermic peaks at 48-50℃ and 53-61℃ exhibiting beta- to alpha- crystalline transformations and alpha- to amorphous transformation, respectively. The TGA data indicated that remaining weights of B&L-H, Dia-H and Sure-H products after heating up to 600℃ were higher than those of their soft type products, B&L-S, Dia-S, and Sure-S materials, respectively. The remaining weights and resistance force to trigger squeezing action of the tested materials were well corresponded with the viscosity-types designated by the suppliers.
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ABSTRACT
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참고문헌
참고문헌 (26)
참고문헌 신청
1. [학술지(정기간행물)] - Beatty R / 1986 / Apical sealing efficacy of endodontic obturation techniques / Int Endod J 19 : 237 ~ 241
2. [학술지(정기간행물)] - Brosco VH / 2003 / "In vitro"evaluation of the apical sealing of root canals obturated with different techniques / J Appl Oral Sci 11 : 181 ~ 185
3. [단행본] - Budavari S / 1996 / The merck index, an encyclopedia of chemicals, drugs, and biological / Merk Research Laboratories : 7370 ~ 7371
4. [학술지(정기간행물)] - 장주혜 / 2011 / 열연화주입형 gutta percha와 resilon의 유변학적 특성 / Restorative Dentistry and Endodontics 36 (5) : 377 ~ 384
5. [학술지(정기간행물)] - Cheng YA / 2014 / Influence of cyclic heating on physical property and biocompatibility of α-and β-form guttapercha / J Formos Med Assoc 113 : 498 ~ 505
2. [학술지(정기간행물)] - Brosco VH / 2003 / "In vitro"evaluation of the apical sealing of root canals obturated with different techniques / J Appl Oral Sci 11 : 181 ~ 185
3. [단행본] - Budavari S / 1996 / The merck index, an encyclopedia of chemicals, drugs, and biological / Merk Research Laboratories : 7370 ~ 7371
4. [학술지(정기간행물)] - 장주혜 / 2011 / 열연화주입형 gutta percha와 resilon의 유변학적 특성 / Restorative Dentistry and Endodontics 36 (5) : 377 ~ 384
5. [학술지(정기간행물)] - Cheng YA / 2014 / Influence of cyclic heating on physical property and biocompatibility of α-and β-form guttapercha / J Formos Med Assoc 113 : 498 ~ 505
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UCI(KEPA) : I410-ECN-0101-2015-510-002884617