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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
- 2015.6
- 수록면
- 127 - 141 (15page)
- DOI
- 10.14815/kjdm.2015.42.2.127
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초록· 키워드
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CAD/CAM generated dental restorations meet standardized manufacturing processes with uniform material quality, reproducibility of restorations and reduction in production costs. CAD/CAM systems in dentistry have rapidly gained importance and popularity, then various types of composite block were introduced as novel material. The purpose of this study were to evaluate the wear resistance of dental novel composite blocks for CAD/CAM.
Four composite resin blocks (Lava Ultimate, Block HC, Cerasmart, KZR-CAD HR) and one composite ceramic block (Vita Enamic) for CAD/CAM were tested. Wear was simulated with an OHSU oral wear simulator, which simultaneously incorporates the wear mechanism of attrition and abrasion in three-body wear mode. Composite specimens were subjected to 50,000 cycles of wear against a steatite antagonist. Mixture of poppy seeds (2 g) and PMMA beads (1 g) in DW (10㎖) was used for 3-body abrasive medium. After wear simulation, average wear depths for abrasion wear and attrition wear were measured with the use of a 3D profilometer. Ten specimens were tested each group.
Composite blocks showed excellent abrasion wear resistance (1.74-3.45 ㎛). Cerasmart showed the lowest attrition wear (5.85 ㎛), there were no significantly difference in attrition wear (12.28-14.07 ㎛) for the other four composite blocks (p>0.05). Composite ceramic block showed the similar wear behavior to composite resin blocks. Correlation between fraction of ceramic and wear resistance was very low (R² = 0.1684).
Four composite resin blocks (Lava Ultimate, Block HC, Cerasmart, KZR-CAD HR) and one composite ceramic block (Vita Enamic) for CAD/CAM were tested. Wear was simulated with an OHSU oral wear simulator, which simultaneously incorporates the wear mechanism of attrition and abrasion in three-body wear mode. Composite specimens were subjected to 50,000 cycles of wear against a steatite antagonist. Mixture of poppy seeds (2 g) and PMMA beads (1 g) in DW (10㎖) was used for 3-body abrasive medium. After wear simulation, average wear depths for abrasion wear and attrition wear were measured with the use of a 3D profilometer. Ten specimens were tested each group.
Composite blocks showed excellent abrasion wear resistance (1.74-3.45 ㎛). Cerasmart showed the lowest attrition wear (5.85 ㎛), there were no significantly difference in attrition wear (12.28-14.07 ㎛) for the other four composite blocks (p>0.05). Composite ceramic block showed the similar wear behavior to composite resin blocks. Correlation between fraction of ceramic and wear resistance was very low (R² = 0.1684).
목차
Abstract
Ⅰ. INTRODUCTION
Ⅱ. MATERIALS AND METHODS
Ⅲ. RESULTS
IV. DISCUSSION
V. CONCLUSION
Ⅵ. REFERENCES
참고문헌 (61)
참고문헌 신청
[학술지(정기간행물)] - Attia A / 2006 / Fracture load of composite resin and feldspathic all-ceramic CAD/CAM crowns / J Prosthet Dent 95 : 117 ~ 123
[학술지(정기간행물)] - Cao L / 2013 / An in vitro investigation of wear resistance and hardness of composite resins / Int J Clin Exp Med 6 : 423 ~ 430
[학술지(정기간행물)] - Coldea A / 2013 / Mechanical properties of polymer-infiltrated-ceramic-network materials / Dent Mater 29 : 419 ~ 426
[학술지(정기간행물)] - Condon JR / 1996 / Evaluation of composite wear with a new multi-mode oral wear simulator / Dent Mater 12 : 218 ~ 226
[학술지(정기간행물)] - Conrad HJ / 2007 / Current ceramic materials and systems with clinical recommendations : A systematic review / J Prosthet Dent 98 : 389 ~ 404
[학술지(정기간행물)] - Cao L / 2013 / An in vitro investigation of wear resistance and hardness of composite resins / Int J Clin Exp Med 6 : 423 ~ 430
[학술지(정기간행물)] - Coldea A / 2013 / Mechanical properties of polymer-infiltrated-ceramic-network materials / Dent Mater 29 : 419 ~ 426
[학술지(정기간행물)] - Condon JR / 1996 / Evaluation of composite wear with a new multi-mode oral wear simulator / Dent Mater 12 : 218 ~ 226
[학술지(정기간행물)] - Conrad HJ / 2007 / Current ceramic materials and systems with clinical recommendations : A systematic review / J Prosthet Dent 98 : 389 ~ 404
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UCI(KEPA) : I410-ECN-0101-2016-515-001613408