Assessibility of different CAD/CAM ceramics with optical coherence tomography

Challakh, Nadia; Palsa, Dennis; Bemmann, Maximilian; Merle, Cordula Leonie; Haak, Rainer; Schulz‐Kornas, Ellen; Ziebolz, Dirk

doi:10.1016/j.jdent.2021.103836

Cited by 7 publications

(9 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Optical coherence tomography (OCT) has been proposed as a nonradiative and noninvasive method for dental diagnosis [13,14]. OCT is a measurement method which acquires high-resolution twoor three-dimensional images from optical scattering media using coherent light [15]. OCT systems have mainly been used to diagnose pathological changes in the retinal layer, optic nerve, and skin diseases [16,17].…”

Section: Introductionmentioning

confidence: 99%

Dental diagnosis for inlay restoration using an intraoral optical coherence tomography system: A case report

Cho

Kim

Lee³

et al. 2023

J Prosthodont Res

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

Dental diagnosis for inlay restoration using an intraoral optical coherence tomography system: A case report

Cho

Kim

Lee³

et al. 2023

J Prosthodont Res

View full text Add to dashboard Cite

show abstract

“…The rougher the surface, the lower the optical reflection [ 10 ]. Polished surfaces and the spread of subcritical cracks are strongly associated with Ra and Rz [ 11 , 12 ]. The roughness caused by restoration adjustment can exacerbate surface flaws and damage the porcelain [ 13 , 14 ].…”

Section: Introductionmentioning

confidence: 99%

Comparison of the Degree of Staining of Computer-Aided Design-Computer-Aided Manufacture (CAD-CAM) Ceramic Veneers by Green Tea, Coffee, and Coca-Cola Using a Digital Spectrophotometer

Wadei

2023

Med Sci Monit

View full text Add to dashboard Cite

Background The majority of dental professionals currently recognize lithium disilicate E-max ceramic veneers as a the most widely used, conservative, and effective cosmetic materials in dentistry. This study aimed to compare the degree of surface changes – roughness (Ra), depth (Rz), and mean color changes (Δ E 00 ) – of computer-aided design-computer-aided manufactured (CAD/CAM) ceramic veneers materials of varying thicknesses caused by staining by green tea, coffee, and Coca-Cola using digital spectrophotometer. Material/Methods This study was conducted at King Khalid University, College of Dentistry. Lithium disilicate glass ceramic (LDGC) material was used to create 60 rectangular slices using the CAD/CAM system. The material thickness and the type of beverage were measured. The specimens were immersed in beverages according to the manufacturer’s instructions. Specimen description and tomography were completed with a 3D noncontact surface metrology using interferometry. The “VITA Easy-Shade” spectrophotometer was used to measure Δ E 00 . It was recorded after 2 weeks for different material thicknesses after immersing samples in green tea, coffee, and Coca-Cola staining materials. Results Significant changes in ceramic thickness were found in Ra and Rz of 0.07 and 1.00 mm after 14 days of staining. Coca-Cola showed a significant difference in Ra and Rz with 1.00 mm thickness measurement compared to the 0.07 mm group with ≤ of 0.05, which was considered statistically significant. Highest Δ E 00 were recorded among samples stained by Coca-Cola, followed by coffee, for both thicknesses. Conclusions Those findings support previous studies using spectrophotometric analysis of staining of CAD-CAM ceramic veneers that Coca-Cola followed by coffee resulted in the greatest color Δ E 00 change.

show abstract

“…The surface roughness (Ra) and depth roughness (Rz) of prosthetic dental ceramics in the oral environment are directly related to highly polished surfaces, subcritical crack propagation, and chemical inertness of material atoms, thereby enabling them to prevent degradation in the oral cavity during functions [ 17 ]. Ra and Rz decrease the biomechanical and esthetic value of prosthetic restorations and growing susceptibility to aging [ 18 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Thermocycling on Color, Surface Characteristics, Compressive Fracture, and Fracture Modes of Prosthetic CAD/CAM Ceramics After Smokeless Tobacco Immersion

Alqahtani

2022

Med Sci Monit

View full text Add to dashboard Cite

Background The study aimed to assess effect of smokeless tobacco (ST) immersion with thermocycling (TC) on color of Vita Classical shade-guide, surface roughness (Ra) and roughness depth (Rz), and compressive fracture force (CFF) of hybrid polymer-infiltrated-feldspathic ceramic (Vita Enamic), leucite-Feldspathic glass (Vitablocs ® Mark II), and zirconia-reinforced lithium silicate (Vita Suprinity) CAD/CAM prosthetic ceramic materials. Material/Methods A 48 samples were milled from Vita Enamic, Vita mark II, and Vita Suprinity. VitaPan shade-guide, Ra, and Rz were registered before ST immersion. Then, the same parameters were recorded again after 15 days of ST staining with and without TC. CFFs and fracture modes of samples after 3 months of aging were documented. Results A slight change was observed in VitaPan shade-guide. Ra and Rz of Vita Suprinity (VS) recorded the highest values among ceramic groups at 3 time intervals. Increases in Ra and Rz were observed after immersion and staining with TC. ANOVA and Bonferroni post hoc tests were used. Significant differences among and between groups were noticed only before immersion in ST and TC, with P value ≥0.00. The highest mean value and SD of CFFs (MPa and Newton) were recorded in Vita Suprinity, followed by Vita Enamic (VE) and Vita mark II (VMII). Reparable fracture was higher in VMII and VS. Conclusions ST staining and TC caused color changes in VitaPan shade-guide and increases in Ra and Rz of tested materials, with highest and lowest values recorded in VS and VE. CFFs were marginally equal to clinically accepted values for VS and equal or slightly higher than the half values for VE and VMII groups.

show abstract

Assessibility of different CAD/CAM ceramics with optical coherence tomography

Cited by 7 publications

References 34 publications

Dental diagnosis for inlay restoration using an intraoral optical coherence tomography system: A case report

Dental diagnosis for inlay restoration using an intraoral optical coherence tomography system: A case report

Comparison of the Degree of Staining of Computer-Aided Design-Computer-Aided Manufacture (CAD-CAM) Ceramic Veneers by Green Tea, Coffee, and Coca-Cola Using a Digital Spectrophotometer

Effect of Thermocycling on Color, Surface Characteristics, Compressive Fracture, and Fracture Modes of Prosthetic CAD/CAM Ceramics After Smokeless Tobacco Immersion

Contact Info

Product

Resources

About