Evidence map›Paper›PMID 42688670›Full record

ArticleJournal of dental sciences2026

Optical properties of conventional and high-translucency zirconia ceramics and their effects on resin cement polymerization.

Chia-Ling Li, Ping-Ju Chen, Jui-Che Lin, Shu-Fen Chuang

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Article in Journal of dental sciences, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

4 authors.

Chia-Ling LiSchool of Dentistry and Institute of Oral Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
Ping-Ju ChenDepartment of Post-Baccalaureate Medicine, College of Medicine, National Chung Hsing University, Taichung, Taiwan.
Jui-Che LinDepartment of Chemical Engineering, National Cheng Kung University, Tainan, Taiwan.
Shu-Fen ChuangSchool of Dentistry and Institute of Oral Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background/purpose: Adequate polymerization of resin luting cements is essential for durable bonding in zirconia restorations. However, variations in zirconia microstructure and composition may influence translucency and light transmittance, thereby affecting resin cement polymerization. This study aimed to investigate the optical properties of conventional and high-translucency zirconia ceramics and their effects on resin cement polymerization. Materials and methods: Six zirconia ceramics were evaluated: CerconBase, CerconHT, and VitaHT (3Y-TZP); VitaST (4Y-PSZ); and CerconXT and VitaXT (5Y-PSZ). Disk specimens (0.5 and 1.0 mm thick) were fabricated and sintered. Grain size and elemental compositions were analyzed using scanning electron microscopy and energy-dispersive X-ray spectroscopy, and phase composition was assessed by X-ray diffraction. Optical properties, including light transmittance, translucency parameter (TP), and contrast ratio (CR), were measured using a UV-NIR spectrophotometer. A light-curable resin cement (Variolink N base) was polymerized through zirconia disks, and surface microhardness was measured immediately and after 24 h. Results: Two 5Y-PSZ ceramics (CerconXT, VitaXT) exhibited the highest cubic-phase fractions (48.66-54.36%), and larger grain sizes, whereas 3Y-TZP showed finer grains. Light transmittance at 468 nm was lowest for CerconBase (15.52% and 10.33% at 0.5 and 1.0 mm, respectively), while other zirconia exhibited higher and comparable values (24.63-31.41%). TP and CR followed similar trends. Although immediate microhardness values were comparable, resin cement polymerized through 1.0-mm-thick CerconBase exhibited significantly lower microhardness after 24 h. Conclusion: Optical behaviors of zirconia ceramics are governed by composition and microstructure. Opaque zirconia, particularly at greater thickness, significantly impairs post-curing polymerization of resin cement.

Indexed as

Light transmittanceMicrohardnessPolymerizationTranslucencyZirconia

Identifiers

PMID42688670
PMCPMC13536383

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.