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dc.contributor.authorChuchai Anunmanaen_US
dc.contributor.authorMasnisa Charoenchitten_US
dc.contributor.authorChanavut Asvanunden_US
dc.contributor.otherMahidol Universityen_US
dc.contributor.otherQueen Sirikit Naval Hospitalen_US
dc.date.accessioned2018-11-09T02:12:19Z-
dc.date.available2018-11-09T02:12:19Z-
dc.date.issued2014-01-01en_US
dc.identifier.citationJournal of Advanced Prosthodontics. Vol.6, No.4 (2014), 253-258en_US
dc.identifier.issn20057814en_US
dc.identifier.issn20057806en_US
dc.identifier.other2-s2.0-84906703981en_US
dc.identifier.urihttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84906703981&origin=inwarden_US
dc.identifier.urihttp://repository.li.mahidol.ac.th/dspace/handle/123456789/33781-
dc.description.abstractPurpose: To compare marginal and internal gaps of zirconia substructure of single crowns with those of threeunit fixed dental prostheses. Materials and methods: Standardized Co-Cr alloy simulated second premolar and second molar abutments were fabricated and subsequently duplicated into type-III dental stone for working casts. After that, all zirconia substructures were made using Lava™system. Marginal and internal gaps were measured in 2 planes (mesial-distal plane and buccal-palatal plane) at 5 locations: marginal opening (MO), chamfer area (CA), axial wall (AW), cusp tip (CT) and mid-occlusal (OA) using Replica technique. Results: There were significant differences between gaps at all locations. The mean ± SD of marginal gap in premolar was 43.6 ± 0.4μm and 46.5 ± 0.5μm for single crown and 3-unit bridge substructure respectively. For molar substructure the mean ± SD of marginal gap was 48.5 ± 0.4μm and 52.6 ± 0.4μm for single crown and 3-unit bridge respectively. The largest gaps were found at the occlusal area, which was 150.5 ± 0.5μm and 154.5 ± 0.4μm for single and 3-unit bridge premolar substructures respectively and 146.5 ± 0.4μm and 211.5 ± 0.4μm for single and 3-unit bridge molar substructure respectively. Conclusion: Independent-samples t-test showed significant differences of gap in zirconia substructure between single crowns and three-unit bridge (P<.001). Therefore, the span length has the effect on the fit of zirconia substructure that is fabricated using CAD/CAM technique especially at the occlusal area. © 2014 The Korean Academy of Prosthodontics.en_US
dc.rightsMahidol Universityen_US
dc.source.urihttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84906703981&origin=inwarden_US
dc.subjectDentistryen_US
dc.titleGap comparison between single crown and three-unit bridge zirconia substructuresen_US
dc.typeArticleen_US
dc.rights.holderSCOPUSen_US
dc.identifier.doi10.4047/jap.2014.6.4.253en_US
Appears in Collections:Scopus 2011-2015

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