Optical and Surface Properties of Monolithic Zirconia after Simulated Toothbrushing

Lee, Jae‐Hyun; Kim, Sunghun; Han, Jung‐Suk; Yeo, In‐Sung; Yoon, Hyung‐In

doi:10.3390/ma12071158

Cited by 32 publications

(32 citation statements)

References 35 publications

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“…A few studies have investigated the optical properties of monolithic zirconia and especially its TP and CR but the results are very inhomogeneous due to variations in instrumentation, zirconia brand, the thickness of the specimens and parameters evaluated (Table S1 and Table 1) [45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69]. For a comprehensive evaluation of the commercial products included in the following tables, their brand names and respective composition as reported by manufacturers or presented in associated references are presented in Table 1, at the end of the paper.…”

Section: Optical Propertiesmentioning

confidence: 99%

“…The effect of hydrothermal treatment of translucent monolithic zirconia on the light transmission was investigated only in a few studies [49,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67]. A statistically significant decrease or an increase of Tt% over aging time was recorded by Putra et al [49] dependent on the commercial product.…”

Section: Optical Propertiesmentioning

confidence: 99%

“…Kulkarni et al [54] have reported that monolithic zirconia presents higher resistance to gastric acid as well as brushing abrasion compared to a lithium disilicate ceramic and a feldspathic ceramic. The type of dentifrice used when brushing has also been found to affect the optical properties of monolithic zirconia ceramics [55].…”

Section: Optical Propertiesmentioning

confidence: 99%

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Monolithic Zirconia: An Update to Current Knowledge. Optical Properties, Wear, and Clinical Performance

Rigos²,

et al. 2019

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The purpose of this paper was to update the knowledge concerning the wear, translucency, as well as clinical performance of monolithic zirconia ceramics, aiming at highlighting their advantages and weaknesses through data presented in recent literature. New ultra-translucent and multicolor monolithic zirconia ceramics present considerably improved aesthetics and translucency, which, according to the literature reviewed, is similar to those of the more translucent lithium disilicate ceramics. A profound advantage is their high strength at thin geometries preserving their mechanical integrity. Based on the reviewed articles, monolithic zirconia ceramics cause minimal wear of antagonists, especially if appropriately polished, although no evidence still exists regarding the ultra-translucent compositions. Concerning the survival of monolithic zirconia restorations, the present review demonstrates the findings of the existing short-term studies, which reveal promising results after evaluating their performance for up to 5 or 7 years. Although a significant increase in translucency has been achieved, new translucent monolithic zirconia ceramics have to be further evaluated both in vitro and in vivo for their long-term potential to preserve their outstanding properties. Due to limited studies evaluating the wear properties of ultra-translucent material, no sound conclusions can be made, whereas well-designed clinical studies are urgently needed to enlighten issues of prognosis and long-term survival.

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Section: Optical Propertiesmentioning

confidence: 99%

Section: Optical Propertiesmentioning

confidence: 99%

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Monolithic Zirconia: An Update to Current Knowledge. Optical Properties, Wear, and Clinical Performance

Rigos²,

et al. 2019

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“…Initially, this material was used only for all-ceramic frameworks. Subsequently, the introduction of translucent zirconia on the market, with improved aesthetic properties [3,4,5], allowed for the realization of monolithic prosthetic products with innumerable advantages: elimination of chipping risk, good mechanical properties (superior to monolithic lithium disilicate products), the possibility of processing by a CAD-CAM technique (greater standardization and quality of results, with cost reduction), manufacturing of smaller thicknesses, and a more conservative dental preparation [6]. Unfortunately, zirconia, unlike glass ceramics, is not susceptible to etching and this makes it impossible to realize the adhesive procedures.…”

Section: Introductionmentioning

confidence: 99%

Adhesion to Zirconia: A Systematic Review of Current Conditioning Methods and Bonding Materials

et al. 2019

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Background. Reliable bonding between resin composite cements and high strength ceramics is difficult to achieve because of their chemical inertness and lack of silica content that makes etching impossible. The purpose of this review is to classify and analyze the existing methods and materials suggested to improve the adhesion of zirconia to dental substrate by using composite resins, in order to explore current trends in surface conditioning methods with predictable results. Methods. The current literature, examining the bond strength of zirconia ceramics, and including in vitro studies, clinical studies, and a systematic review, was analyzed. The research in the literature was carried out using PubMed and Cochrane Library databases, only papers in English, published online from 2013 to 2018. The following keywords and their combinations were used: Zirconia, 3Y-TZP, Adhesion, Adhesive cementation, Bonding, Resin, Composite resin, Composite material, Dentin, Enamel. Results. Research, in PubMed and Cochrane Library databases, provided 390 titles with abstracts. From these, a total of 93 publications were chosen for analysis. After a full text evaluation, seven articles were discarded. Therefore, the final sample was 86, including in vitro, clinical studies, and one systematic review. Various adhesive techniques with different testing methods were examined. Conclusions. Airborne-particle abrasion and tribo-chemical silica coating are the pre-treatment methods with more evidence in the literature. Increased adhesion could be expected after physico-chemical conditioning of zirconia. Surface contamination has a negative effect on adhesion. There is no evidence to support a universal adhesion protocol.

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“…A toothpaste is defined as a semi-solid material for removing naturally occurring deposits from teeth when used with a toothbrush [3,7]. The tooth brushing procedure involves a mechanical force applied onto the tooth surface over a defined period and determines dental plaque disclosure and the specific action of dentifrice active ingredients [8].…”

Section: Introductionmentioning

confidence: 99%

Toothpaste Composition Effect on Enamel Chromatic and Morphological Characteristics: In Vitro Analysis

et al. 2019

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The aim of this in vitro study was to assess the effect of toothpastes, with different compositions, on optical and morphological features of sound and demineralized enamel. We selected twenty-five teeth, recently extracted for orthodontic purposes, for this in vitro study. The teeth were caries free, without stains, fissures, filling or hypoplasia observed at inspection under standard conditions. Teeth were brushed (for 2–3 min, twice a day, for 21 days), with five different toothpastes (four commercially available and an experimental one) containing fluoride and hydroxyapatite. After that, teeth were demineralized with 37% orthophosforic acid (Ultra Etch®, Ultradent Products Inc., South Jordan, UT, USA) for 60 s. We repeated the brushing protocol for another 21 days on demineralized enamel. Enamel vestibular surfaces were examined using a spectrophotometer (Vita EasyShade -Vita Zahnfabrik, Bad Sackingen, Germany) and a Scanning Electron Microscope (Inspect S®, FEI Company, Hillsboro, OR, USA). Differences were statistically significant for colour parameters L* and ΔE*. SEM evaluation reveals demineralized enamel mineral gain after brushing with selected toothpastes. Toothpastes with specific ingredients can represent a balance between aesthetic and mineralization, and an oral hygiene correct algorithm is able to preserve enamel characteristics during ortodontic treatement with fixed appliances.

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Optical and Surface Properties of Monolithic Zirconia after Simulated Toothbrushing

Cited by 32 publications

References 35 publications

Monolithic Zirconia: An Update to Current Knowledge. Optical Properties, Wear, and Clinical Performance

Monolithic Zirconia: An Update to Current Knowledge. Optical Properties, Wear, and Clinical Performance

Adhesion to Zirconia: A Systematic Review of Current Conditioning Methods and Bonding Materials

Toothpaste Composition Effect on Enamel Chromatic and Morphological Characteristics: In Vitro Analysis

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