Resin Cement Residue Removal Techniques : In Vitro Analysis of Marginal Defects and Discoloration Intensity Using Micro-CT and Stereomicroscopy

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dc.contributor.authorGaile, Māra
dc.contributor.authorPapia, Evaggelia
dc.contributor.authorZalite, Vita
dc.contributor.authorLocs, Janis
dc.contributor.authorSoboļeva, Una
dc.contributor.institutionDepartment of Prosthetic Dentistry
dc.date.accessioned2022-08-16T21:03:23Z
dc.date.available2022-08-16T21:03:23Z
dc.date.issued2022-04-01
dc.descriptionFunding Information: Funding: This work has been supported by the European Regional Development Fund within the Activity 1.1.1.2 “Post-doctoral Research Aid” of the Specific Aid Objective 1.1.1 “To increase the research and innovative capacity of scientific institutions of Latvia and the ability to attract external financing, investing in human resources and infrastructure” of the Operational Program “Growth and Employment” (No.1.1.1.2/VIAA/3/19/459). Funding Information: This work has been supported by the European Regional Development Fund within the Activity 1.1.1.2 ?Post-doctoral Research Aid? of the Specific Aid Objective 1.1.1 ?To increase the research and innovative capacity of scientific institutions of Latvia and the ability to attract external financing, investing in human resources and infrastructure? of the Operational Program ?Growth and Employment? (No.1.1.1.2/VIAA/3/19/459). Publisher Copyright: © 2022 by the authors. Licensee MDPI, Basel, Switzerland.
dc.description.abstractThe objective was to compare marginal defects and evaluate discoloration for adhesively cemented veneers in vitro when using two cement removal techniques. Twenty premolars were prepared with chamfer and borders in enamel. IPS e.max CAD veneers were cemented using Panavia V5 and divided in two groups (n = 10): cement excess removed with a probe after tack-curing for 3–5 s, or cement excess removed with a brush, then completely polymerized. All teeth were stored in alginate gel until micro-CT examination. Scanning was performed twice: directly after cementation and after thermocycling (5000 cycles, between 5 and 55◦ C). To analyze discoloration, teeth were colored using 0.5% basic fuchsine and examined under a stereomicroscope. Depth of dye infiltration was scored 0 (no discoloration) to 5 (discoloration along the entire margin). Statistically significant differences of cement defects before thermocycling were reported, where brushing showed more defects than probing (p = 0.0161). After thermocycling, the defects increased for both groups. Extensive discoloration was the most common (55.56%) when removing excess by probing; by brushing, 90% of the specimens exhibited slight discoloration (p = 0.008). Regression analysis showed no relationship between type of defect and degree of discoloration. Removing cement with a brush causes more marginal defects, however less discoloration after thermocycling.en
dc.description.statusPeer reviewed
dc.format.extent14
dc.format.extent3224648
dc.identifier.citationGaile, M, Papia, E, Zalite, V, Locs, J & Soboļeva, U 2022, 'Resin Cement Residue Removal Techniques : In Vitro Analysis of Marginal Defects and Discoloration Intensity Using Micro-CT and Stereomicroscopy', Dentistry Journal, vol. 10, no. 4, 55. https://doi.org/10.3390/dj10040055
dc.identifier.doi10.3390/dj10040055
dc.identifier.issn2304-6767
dc.identifier.otherunpaywall: 10.3390/dj10040055
dc.identifier.urihttps://dspace.rsu.lv/jspui/handle/123456789/9426
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=85128374582&partnerID=8YFLogxK
dc.language.isoeng
dc.relation.ispartofDentistry Journal
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectadhesive cementation
dc.subjectdental veneers
dc.subjectdiscoloration
dc.subjectmarginal defect
dc.subject3.2 Clinical medicine
dc.subject1.1. Scientific article indexed in Web of Science and/or Scopus database
dc.subjectGeneral Dentistry
dc.titleResin Cement Residue Removal Techniques : In Vitro Analysis of Marginal Defects and Discoloration Intensity Using Micro-CT and Stereomicroscopyen
dc.type/dk/atira/pure/researchoutput/researchoutputtypes/contributiontojournal/article

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