Publications by authors named "L V Lassila"
Purpose: This study investigated the bond strength between short fiber-reinforced resin composite (SFC) and dentin following air abrasion with various types of abrasive particles.
Methods: A total of 120 human molars were prepared for a shear bond strength (SBS) test of the resin composite. The teeth were divided into 12 groups (n = 10/group) based on the air abrasion particle used.
Background: Short fiber-reinforced composites (SFRCs) are restorative materials for large cavities claimed to effectively resist crack propagation. This study aimed to compare the mechanical properties and physical characteristics of five commercially available SFRCS (Alert, Fibrafill Flow, Fibrafill Dentin, everX Flow, and everX Posterior) against a conventional particulate-filled composite (PFC, Essentia Universal).
Methods: The following characteristics were evaluated in accordance with ISO standards: flexural strength and modulus and fracture toughness.
Objectives: The aim of this study was to evaluate the margin quality of anterior crowns made of experimental short fiber-reinforced CAD/CAM composite (SFRC CAD) block before and after cyclic fatigue aging. Moreover, to investigate the microstructure, homogeneity, and porosity of the SFRC CAD compared with other commercial CAD/CAM materials.
Methods: 40 anterior crowns were milled from five CAD/CAM blocks divided into five groups (n = 8/group).
Article Synopsis
- - The study aimed to assess how cement layer and veneer thickness affect the load-bearing capacity of teeth restored with hybrid ceramic (HC) and lithium-disilicate glass ceramic (LDGC) occlusal veneers.
- - Researchers used 64 extracted human molar teeth, testing different combinations of cement thickness (50µm or 200µm) and veneer thickness (0.5mm or 1.8mm) for each type of material.
- - Results indicated that thin HC veneers had a better load-bearing capacity than LDGC veneers of the same thickness and were less affected by changes in cement layer thickness.
Background: This study evaluated the accuracy of the CBCT reconstruction model compared to the natural tooth and the accuracy of the replica tooth compared to the natural tooth.
Objective: The hypothesis was that a replica tooth could be used as a surgical guide in autotransplantation.
Methods: Three teeth were chosen and a CBCT reconstruction model was formed from each tooth.