Discoloration Improvement by Mechanically-Milled Binary Oxides as Radiopacifier for Mineral Trioxide Aggregates

Lin, Huakuan; Wang, Ling-Chi; Chen, May-Show; Chang, Pei-Jung; Lin, Pyng Jing; Fang, Alexander W.; Chen, Chin-Yi; Lee, Pee‐Yew; Lin, Chung Kwei

doi:10.3390/ma15227934

Cited by 4 publications

(8 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The radiopacity, however, did not meet the required 3 mmAl. This is similar to the MTA-like cements with zirconia as the radiopacifier [51]. In order to reveal the therapeutic outcome of endodontic treatment, the radiopacity is highly important and must be larger than 3 mmAl to determine the differences between the MTAs and tooth (which has a relatively low radiopacity).…”

Section: Radiopacity (Mmmentioning

confidence: 73%

“…After solidification, the MTA-like cements were placed in an environment-controlled incubator (37 • C with 100% relative humidity) for another 24 h to simulate the oral environment. The detailed experimental procedures are available elsewhere [51].…”

Section: Preparation and Characterization Of Mta-like Cementsmentioning

confidence: 99%

“…Discoloration was applied to the disc samples (10 mm diameter and 1 mm thickness) by immersing them in 2 mL glycerin (Wako, Osaka, Japan) for 15 min and exposing the soaked samples to UV irradiation [52]. A UV curing machine (Phrozen Cure V2, Hsinchu, Taiwan) with UV-LEDs (365 nm, 385 nm, and 405 nm, 60 W in total) was used for the discoloration experiments [51]. Excepting the practical photographs for observation, a digital dental colorimeter (OptiShade Styleitaliano, St-Imier, Switzerland) was used to obtain the L*a*b* values of the exposed samples (n = 6).…”

Section: Setting and Discoloration Of Mta-like Cementsmentioning

confidence: 99%

See 2 more Smart Citations

Endodontic Radiopacifying Application of Barium Titanate Prepared through a Combination of Mechanical Milling and Heat Treatment

Lin,

Chen,

Hsu

et al. 2023

Materials

Self Cite

View full text Add to dashboard Cite

Mineral trioxide aggregates (MTA) are commonly used as endodontic filling materials but suffer from a long setting time and tooth discoloration. In the present study, the feasibility of using barium titanate (BTO) for discoloration and a calcium chloride (CaCl2) solution to shorten the setting time was investigated. BTO powder was prepared using high-energy ball milling for 3 h, followed by sintering at 700–1300 °C for 2 h. X-ray diffraction was used to examine the crystallinity and crystalline size of the as-milled and heat-treated powders. MTA-like cements were then prepared using 20–40 wt.% BTO as a radiopacifier and solidified using a 0–30% CaCl2 solution. The corresponding radiopacity, diametral tensile strength (DTS), initial and final setting times, and discoloration performance were examined. The experimental results showed that for the BTO powder prepared using a combination of mechanical milling and heat treatment, the crystallinity and crystalline size increased with the increasing sintering temperature. The BTO sintered at 1300 °C (i.e., BTO-13) exhibited the best radiopacity and DTS. The MTA-like cement supplemented with 30% BTO-13 and solidified with a 10% CaCl2 solution exhibited a radiopacity of 3.68 ± 0.24 mmAl and a DTS of 2.54 ± 0.28 MPa, respectively. In the accelerated discoloration examination using UV irradiation, the color difference was less than 1.6 and significantly lower than the clinically perceptible level (3.7). This novel MTA exhibiting a superior color stability, shortened setting time, and excellent biocompatibility has potential for use in endodontic applications.

show abstract

Section: Radiopacity (Mmmentioning

confidence: 73%

Section: Preparation and Characterization Of Mta-like Cementsmentioning

confidence: 99%

Section: Setting and Discoloration Of Mta-like Cementsmentioning

confidence: 99%

See 1 more Smart Citation

Endodontic Radiopacifying Application of Barium Titanate Prepared through a Combination of Mechanical Milling and Heat Treatment

Lin,

Chen,

Hsu

et al. 2023

Materials

Self Cite

View full text Add to dashboard Cite

show abstract

“…The Optishade Style Italiano is a contemporary and underutilized colorimeter, with only one scientific study existing in the field of endodontics [39]. Equipped with red, green, and blue filters to approximate the human eye's spectrum, this colorimeter operates by capturing colors through processing the light reflection via said filters [40].…”

Section: Discussionmentioning

confidence: 99%

In Vitro Evaluation of Surface Roughness and Color Variation after Two Brushing Protocols with Toothpastes Containing Different Whitening Technologies

Lobito,

Colaço,

Costa

et al. 2024

Applied Sciences

View full text Add to dashboard Cite

The aim was to evaluate the effect of different whitening toothpastes on the enamel surface roughness and color variation. Twenty-four molars were sectioned and divided into eight groups (n = 3) considering the following two factors under study: toothpaste type (Colgate® Total Original, Oral B® 3D White Luxe Perfection, Curaprox® Black is White, and Signal® White Now) and brushing protocol (short- and long-term). Surface roughness was examined by atomic force microscopy (AFM), and color change (ΔE) was measured using the CIE L*a*b* system. Data were statistically analyzed using comparative parametric tests at a 5% significance level. In the short-term protocol, only the Signal® White Now toothpaste increased surface roughness (p = 0.038) compared to the Colgate® Total Original group. No significant differences (p > 0.05) were observed in surface roughness in the long-term protocol. Regarding color variation, no statistically significant differences (p > 0.05) were observed in either protocol. Overall, the whitening toothpastes did not affect enamel surface roughness or color, except for Signal® White Now, which caused increased roughness in the short-term protocol. However, all toothpastes induced a visual change in color.

show abstract

“…The Optishade Style Italiano is a contemporary and underutilized colorimeter, with only one scientific study existing in the field of endodontics [33]. Equipped with red, green, and blue filters to approximate the human eye's spectrum, this colorimeter operates by capturing the color through the processing the light reflection via said filters [34].…”

Section: Discussionmentioning

confidence: 99%

In Vitro Evaluation of Surface Roughness and Color Variation after Two Brushing Protocols with Toothpastes Containing Different Whitening Technologies

Lobito,

Colaço,

Costa

et al. 2024

Preprint

View full text Add to dashboard Cite

The aim was to evaluate the effect of different whitening toothpastes on the enamel surface roughness and color variation. Twenty-four molars were sectioned and divided into eight groups (n = 3), considering the two factors under study: toothpaste type (Colgate® Total Original, Oral B® 3D White Luxe Perfection, Curaprox® Black is White, and Signal® White Now) and brushing protocol (short-term and a long-term). Surface roughness was examined by atomic force microscopy (AFM), and color change (ΔE) was measured using the CIE L*a*b* system. Data were statistically analyzed using comparative parametric tests at a 5% significance level. In the short-term protocol, only the Signal® White Now toothpaste increased surface roughness (p = 0.038) compared to the Colgate® Total Original group. No significant differences (p > 0.05) were observed in surface roughness in the long-term protocol. Regarding color variation, no statistically significant differences (p > 0.05) were observed in either protocol. Overall, the whitening toothpastes did not affect enamel surface roughness or color, except for Signal® White Now causing increased roughness in the short-term protocol. However, all toothpastes induced a visual change in color.

show abstract

Discoloration Improvement by Mechanically-Milled Binary Oxides as Radiopacifier for Mineral Trioxide Aggregates

Cited by 4 publications

References 31 publications

Endodontic Radiopacifying Application of Barium Titanate Prepared through a Combination of Mechanical Milling and Heat Treatment

Endodontic Radiopacifying Application of Barium Titanate Prepared through a Combination of Mechanical Milling and Heat Treatment

In Vitro Evaluation of Surface Roughness and Color Variation after Two Brushing Protocols with Toothpastes Containing Different Whitening Technologies

In Vitro Evaluation of Surface Roughness and Color Variation after Two Brushing Protocols with Toothpastes Containing Different Whitening Technologies

Contact Info

Product

Resources

About