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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 대한치과보철학회 The Journal of Advanced of Prosthodontics The Journal of Advanced of Prosthodontics 제8권 제2호
- 발행연도
- 2016.1
- 수록면
- 101 - 109 (9page)
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PURPOSE. To investigate the void parameters within the resin cements used for fiber post cementation by micro-CT (μCT) and regional push-out bonding strength. MATERIALS AND METHODS. Twenty-one, single and round shaped roots were enlarged with a low-speed drill following by endodontic treatment. The roots were divided into three groups (n=7) and fiber posts were cemented with Maxcem Elite, Multilink N and Superbond C&B resin cements. Specimens were scanned using μCT scanner at resolution of 13.7 μm. The number, area, and volume of voids between dentin and post were evaluated. A method of analysis based on the post segmentation was used, and coronal, middle and apical thirds considered separately. After the μCT analysis, roots were embedded in epoxy resin and sectioned into 2 mm thick slices (63 sections in total). Push-out testing was performed with universal testing device at 0.5 mm/min cross-head speed. Data were analyzed with Kruskal?Wallis and Mann?Whitney U tests (α=.05). RESULTS. Overall, significant differences between the resin cements and the post level were observed in the void number, area, and volume (P<.05). Super-Bond C&B showed the most void formation (44.86 ± 22.71). Multilink N showed the least void surface (3.51 ± 2.24 mm2) and volume (0.01 ± 0.01 mm3). Regional push-out bond strength of the cements was not different (P>.05). CONCLUSION. μCT proved to be a powerful non-destructive 3D analysis tool for visualizing the void parameters. Multilink N had the lowest void parameters. When efficiency of all cements was evaluated, direct relationship between the post region and push-out bonding strength was not observed. [J Adv Prosthodont 2016;8:101-9]
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참고문헌 (36)
참고문헌 신청
Zicari F / 2008 / Bonding effectiveness and sealing ability of fiber-post bonding / Dent Mater 24:967~977
Baba NZ / 2009 / Nonmetallic prefabricated dowels: a review of compositions, properties, laboratory, and clinical test results / J Prosthodont 18:527~536
Spazzin AO / 2009 / Influence of post and resin cement on stress distribution of maxillary central incisors restored with direct resin composite / Oper Dent 34:223~229
Goracci C / 2007 / Laboratory assessment of the retentive potential of adhesive posts: a review / J Dent 35:827~835
Boschian Pest L / 2002 / Adhesive post-endodontic restorations with fiber posts: push-out tests and SEM observations / Dent Mater 18:596~602
Baba NZ / 2009 / Nonmetallic prefabricated dowels: a review of compositions, properties, laboratory, and clinical test results / J Prosthodont 18:527~536
Spazzin AO / 2009 / Influence of post and resin cement on stress distribution of maxillary central incisors restored with direct resin composite / Oper Dent 34:223~229
Goracci C / 2007 / Laboratory assessment of the retentive potential of adhesive posts: a review / J Dent 35:827~835
Boschian Pest L / 2002 / Adhesive post-endodontic restorations with fiber posts: push-out tests and SEM observations / Dent Mater 18:596~602
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