Publications by authors named "S M Salazar Marocho"
Article Synopsis
- The study examined the fatigue lifetime of reduced-diameter dental implants placed in either bovine rib or polymer-based bone models.
- Results indicated that implants in bovine ribs had better data dispersion and longer fatigue lifetimes compared to those in polymer models, though no statistically significant difference was found between the two groups.
- Bovine ribs are suggested to be a more effective material for accelerated life testing due to their superior performance in data reliability.
Although advancements in CAD/CAM technology allow for more personalized treatments, it is not clear how modifications in the CAD/CAM milling process could affect the restoration surface conditions and their mechanical behavior. The objective of this study was to evaluate the effect of different CAD/CAM milling protocols on the topography and fracture behavior of zirconia monolithic crowns (3Y-PSZ) subjected to a chewing simulation. Monolithic 3Y-PSZ premolar crowns were milled using three protocols ( = 13) (slow (S), normal (N), and fast (F)).
View Article and Find Full Text PDFPurpose: To evaluate the effect of different finishing protocols on the wear behavior of lithium disilicate glass-ceramics (LD).
Materials And Methods: Specimens were produced from LD prefabricated CAD/CAM blocks and divided into three groups according to the surface treatment (n = 8): control, polishing, and glaze. Ceramic specimens were subjected to wear testing using a dual-axis chewing simulator.
Purpose: This study evaluated the fatigue failure load (FFL) and the number of cycles for fatigue failure (CFF) of traditional (porcelain layer up) and reversed (zirconia layer up) designs of porcelain-veneered zirconia samples prepared with heat-pressing or file-splitting techniques.
Materials And Methods: Zirconia discs were prepared and veneered with heat-pressed or machined feldspathic ceramic. The bilayer discs were bonded onto a dentin-analog according to the bilayer technique and sample design: traditional heat-pressing (T-HP), reversed heat-pressing (R-HP), traditional file-splitting with fusion ceramic (T-FC), reversed file-splitting with fusion ceramic R-FC), traditional file-splitting with resin cement (T-RC), and reversed file-splitting with resin cement (R-RC).
Purpose: To describe the current findings regarding the use of lasers to enhance the bonding properties of zirconia and to enable its debonding.
Materials And Methods: The PudMed database was searched for literature up to July 2021. The keywords used for zirconia surface treatment were: laser irradiation; zirconia; and bond strength.