View : 1271 Download: 0

Full metadata record

DC Field Value Language
dc.contributor.advisor김예미-
dc.contributor.author손민경-
dc.creator손민경-
dc.date.accessioned2019-08-13T16:33:20Z-
dc.date.available2019-08-13T16:33:20Z-
dc.date.issued2019-
dc.identifier.otherOAK-000000159418-
dc.identifier.urihttp://dcollection.ewha.ac.kr/common/orgView/000000159418en_US
dc.identifier.urihttps://dspace.ewha.ac.kr/handle/2015.oak/251152-
dc.description.abstract이 연구의 목적은 칼슘 실리케이트 기반 근관실러(Endoseal MTA)의 물리 화학적 성질을 에폭시 레진 기반 근관실러(AH plus) 및 Mineral trioxide aggregate (ProRoot MTA)와 비교하여 평가하는 것이다. 실험에 사용 된 재료는 Endoseal MTA (MARUCHI, Wonju, Korea), AH plus (DentsplyDeTrey, Konstanz, Germany), ProRoot MTA (Dentsply, Tulsa, OK, USA)이다. 물리화학적 성질 평가를 위해 유동성, 경화 시간, 피막도, 용해도, 방사선 불투과성 및 pH 변화를 실험하였다. 유동성, 경화 시간, 피막도, 용해도 및 방사선 불투과성은 ISO 6876:2012에 따라 측정하였다(n = 15). pH 변화는 경화되지 않은 재료와 경화된 시편에서 각각 관찰하였다(n = 10). 경화되지 않은 재료의 pH변화에서 재료를 혼합한 즉시 실험에 사용하였고, 경화된 시편에서의 pH변화에서는 재료를 혼합 한 후 굳힌 시편을 사용하였다. 경화되지 않은 재료의 pH 변화를 1일 동안 측정하였으며, 14일 동안 경화된 시편의 pH 변화를 측정 하였다. 모든 실험 결과는 일원 분산 분석(One-Way ANOVA)을 사용하여 분석되었으며, Bonferroni 사후 검정을 실시하였다. 유의 수준은 5%로 설정하였다. 흐름성은 ProRoot MTA (12.75 mm ± 0.77 mm), Endoseal MTA (20.51 mm ± 1.96 mm), AH plus (22.71 mm ± 1.14 mm) 순으로 높게 나타났다 (p < 0.05). Endoseal MTA (34.93 min ±5.38 min)의 경화 시간은 다른 재료들보다 유의하게 짧았다 (p < 0.05). 피막도는 Endoseal MTA (0.09 mm ± 0.05 mm), AH plus (0.18 mm ±0.11 mm), ProRoot MTA (0.76 mm ± 0.05 mm) 순으로 높게 관찰되었다 (p < 0.05). Endoseal MTA의 용해도 (0.80 % ± 0.05 %)는 시험 물질 중 가장 높은 값을 보였다 (p < 0.05). 방사선 불투과성 값은 ProRoot MTA (6.89 mmAl ± 2.11 mmAl), Endoseal MTA (12.80 mmAl ± 1.28 mmAl), AH plus (14.84 mmAl ± 0.96 mmAl) 순으로 높게 측정되었다 (p < 0.05). Endoseal MTA 및 AH plus는 ISO 6876:2012 기준에 부합하였다. 그러나 ProRoot MTA 의 유동 및 피막도는 기준에 충족하지 않았다. Endoseal MTA의 pH는 AH plus보다 높았지만 ProRoot MTA보다 낮았다 (p < 0.05). 14일의 실험기간 동안 Endoseal MTA와 ProRoot MTA는 높은 알칼리성을 보였다. 결론적으로, Endoseal MTA의 흐름성, 경화 시간, 피막도, 용해도 및 방사선 불투과성은 ISO 6876:2012 기준에 충족하였다. 또한 Endoseal MTA는 대중적으로 흔히 사용하는 AH plus에 비해 높은 알칼리성을 보였다.;The aim of this study is to evaluate the physicochemical properties of calcium silicate based endodontic sealer (Endoseal MTA) in comparison with the epoxy resin-based root canal sealer (AH plus) and the mineral trioxide aggregate (ProRoot MTA). For physicochemical properties evaluation, flow, setting time, film thickness, solubility, radiopacity and pH change were measured. These parameters were determined and based according to ISO 6876:2012 (n = 15). The pH changes were measured in fresh samples and set samples, respectively (n = 10). Fresh samples were used immediately after mixing, and set samples were mixed and left to harden before being prepared as specimens. The pH change of freshly mixed materials and set materials were measured after 1 and 14 days respectively. All experimental results were analyzed using One-Way ANOVA and post-hoc test was performed with Bonferroni. The significance level was set at 5 %. The flow values in increasing order were ProRoot MTA (12.75 mm ± 0.77 mm), Endoseal MTA (20.51 mm ± 1.96 mm), AH plus (22.71 mm ± 1.14 mm) (p < 0.05). The setting time of Endoseal MTA (34.93 min ± 5.38 min) had significant shorter than the others (p < 0.05). The film thickness values in increasing order were Endoseal MTA (0.09 mm ± 0.05 mm), AH plus (0.18 mm ± 0.11 mm), ProRoot MTA (0.76 mm ± 0.05 mm) (p < 0.05). The solubility of Endoseal MTA (0.80 % ± 0.05 %) exhibited the highest value among the tested materials (p < 0.05). The radiopacity values in increasing order were ProRoot MTA (6.89 mmAl ± 2.11 mmAl), Endoseal MTA (12.80 mmAl ± 1.28 mmAl), AH plus (14.84 mmAl ± 0.96 mmAl) (p < 0.05). Endoseal MTA and AH plus conformed to ISO 6876:2012 standards. But the flow and film thickness of ProRoot MTA were below the standard. The pH of Endoseal MTA was higher than AH plus, but lower than ProRoot MTA (p < 0.05). During 14 days of experimentation, Endoseal MTA and ProRoot MTA showed high alkalinity. In conclusion, the Endoseal MTA meets all of the criterias of flow, setting time, film thickness, solubility and radiopacity of an ideal root canal sealer. Also Endoseal MTA had high alkalinity compared to AH plus, a gold standard for comparison material in endodontic research.-
dc.description.tableofcontentsⅠ. Introduction 1 Ⅱ. Materials and methods 3 A. Flow 5 B. Setting time 5 C. Film thickness 6 D. Solubility 6 E. Radiopacity 7 F. pH change 8 G. Statistical Analysis 9 Ⅲ. Results 10 A. Flow 10 B. Setting time 10 C. Film thickness 11 D. Solubility 11 E. Radiopacity 11 F. pH change 12 Ⅳ. Discussion 18 Ⅴ. Conclusion 22 References 23 Abstract(in Korean) 27-
dc.formatapplication/pdf-
dc.format.extent758080 bytes-
dc.languageeng-
dc.publisher이화여자대학교 임상치의학대학원-
dc.subject.ddc617.6-
dc.titleEvaluation of physicochemical properties of calcium silicate-based endodontic sealer-
dc.typeMaster's Thesis-
dc.format.pagev, 28 p.-
dc.identifier.thesisdegreeMaster-
dc.identifier.major임상치의학대학원 임상구강보건학과치위생학전공-
dc.date.awarded2019. 8-
Appears in Collections:
임상치의학대학원 > 치위생학전공 > Theses_Master
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

BROWSE