Cited 0 times in
치과용 도재의 재소성 과정중 수분함량이 강도에 미치는 영향
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 심준성 | - |
dc.contributor.author | 이근우 | - |
dc.date.accessioned | 2015-07-15T17:07:59Z | - |
dc.date.available | 2015-07-15T17:07:59Z | - |
dc.date.issued | 2003 | - |
dc.identifier.issn | 0301-2876 | - |
dc.identifier.uri | https://ir.ymlib.yonsei.ac.kr/handle/22282913/114292 | - |
dc.description.abstract | Statement of problem: Long-term exposure of dental porcelain to saliva during temporary cementation of a porcelain-fused to metal (PFM) restoration could affect mechanical strength of dental porcelain if the restoration is refired. Purpose: This work was performed to verify the effect of water on the mechanical strength in aged dental porcelain. Material and method: 63 specimens(Vintage Metalbond opaque and opal powder) were distributed to three experimental groups; non-water immersed control, immersed and pedried, and immersed and non-predired groups. The changes in flexural strength and fracture toughness after specimen refiring related to Fourier Transform Infrared (FT-IR) spectroscopy. Results: 1. The FT-IR reflectances assigned to molecular bonds of H2O were noted as significantly different between the first-fired group and three refired groups and between two water-immersed groups and control group after refiring(p<0.05). They were also significantly different between predried group and non-predried group after refiring(p<0.05). 2. For opal specimens, FT-IR absorbances for hydrogen bond of H2O and silanols were significantly higher in non-predried group than in predreid group(p<0.05). 3. Predried opal group showed the highest mean flexural strength(p<0.05). Non-predried group indicated higher mean flexural strength than control group(p<0.05). 4. The mean fracture toughness for predired group was higher than non-predried group(p<0.05). 5. The difference of leucite crystal size is noted between control group and water-immersed, predried group in scanning electron microscopic study(×10000). | - |
dc.description.statementOfResponsibility | open | - |
dc.format | application/pdf | - |
dc.relation.isPartOf | Journal of Korean Academy of Prosthodontics (대한치과보철학회지) | - |
dc.rights | CC BY-NC-ND 2.0 KR | - |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/2.0/kr/ | - |
dc.subject.MESH | Refiring | - |
dc.subject.MESH | Feldspathic dental porcelain | - |
dc.subject.MESH | Metal ceramic restoration | - |
dc.subject.MESH | Temporary cementation | - |
dc.subject.MESH | Water immersion | - |
dc.subject.MESH | Fourier Transform Infrared(FT-IR) | - |
dc.subject.MESH | Flexural strength | - |
dc.subject.MESH | Fracture tough-ness | - |
dc.subject.MESH | Leucite crystal | - |
dc.title | 치과용 도재의 재소성 과정중 수분함량이 강도에 미치는 영향 | - |
dc.title.alternative | Effect of Water Content on the Flexural Strength During Refiring in Dental Porcelain | - |
dc.type | Article | - |
dc.contributor.college | College of Dentistry (치과대학) | - |
dc.contributor.department | Dept. of Prosthodontics (보철과학) | - |
dc.contributor.googleauthor | 박혜양 | - |
dc.contributor.googleauthor | 심준성 | - |
dc.contributor.googleauthor | 이근우 | - |
dc.admin.author | false | - |
dc.admin.mapping | false | - |
dc.contributor.localId | A02211 | - |
dc.contributor.localId | A02688 | - |
dc.relation.journalcode | J01493 | - |
dc.subject.keyword | Refiring | - |
dc.subject.keyword | Feldspathic dental porcelain | - |
dc.subject.keyword | Metal ceramic restoration | - |
dc.subject.keyword | Temporary cementation | - |
dc.subject.keyword | Water immersion | - |
dc.subject.keyword | Fourier Transform Infrared(FT-IR) | - |
dc.subject.keyword | Flexural strength | - |
dc.subject.keyword | Fracture tough-ness | - |
dc.subject.keyword | Leucite crystal | - |
dc.contributor.alternativeName | Shim, June Sung | - |
dc.contributor.alternativeName | Lee, Keun Woo | - |
dc.contributor.affiliatedAuthor | Shim, June Sung | - |
dc.contributor.affiliatedAuthor | Lee, Keun Woo | - |
dc.rights.accessRights | free | - |
dc.citation.volume | 41 | - |
dc.citation.number | 5 | - |
dc.citation.startPage | 656 | - |
dc.citation.endPage | 673 | - |
dc.identifier.bibliographicCitation | Journal of Korean Academy of Prosthodontics (대한치과보철학회지), Vol.41(5) : 656-673, 2003 | - |
dc.identifier.rimsid | 41894 | - |
dc.type.rims | ART | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.