Publications by authors named "R Sasany"
Statement Of Problem: Acrylic denture base resins are subject to colonization by oral and nonoral bacteria, contributing to the onset of denture stomatitis. However, how the addition of antimicrobial substances affects the mechanical and optical properties of additively manufactured denture base resin remains unclear.
Purpose: The purpose of this in vitro study was to investigate the surface roughness, color stainability, and flexural strength of antimicrobial-modified, additively manufactured polymethyl methacrylate (PMMA) denture base resin in tooth and gingiva colors.
Article Synopsis
- - The study compared the effects of two types of mandibular advancement devices (monoblock and twinblock) on patients with obstructive sleep apnea and temporomandibular disorders over 3 months, including a 2-week washout.
- - Results showed that the monoblock device significantly increased upper airway volume compared to the twinblock, while both devices improved sleep-related parameters and reduced TMD symptoms.
- - The findings suggest that monoblock devices may be more effective in enhancing airway dimensions and alleviating TMD issues, highlighting their clinical relevance for treating patients with mild to moderate conditions.
Purpose: This study evaluated the effects of artificial saliva and distilled water on the nanoindentation creep of different 3D-printed and milled CAD-CAM resin composites.
Material And Methods: Disk-shaped specimens were subtractively fabricated from polymer-infiltrated ceramic network (EN) and reinforced resin composite (B) and additively from resin composite (C) and hybrid resin composite (VS) using digital light processing (DLP). Specimens from each material were divided into two groups according to their storage conditions (artificial saliva or distilled water for 3 months).
Purpose: To investigate the impact of printing layer thickness on the optical properties and surface roughness of various 3D-printed resins manufactured by digital light processing (DLP) and indicated for provisional and definitive restorations.
Materials And Methods: A total of 240 specimens from four different 3D-printing resins-VarseoSmile Crown Plus (Bego; VS), Crowntec (Saremco Dental; CR), GC Temp PRINT (GC Dental; TG), and NextDent C&B MFH (NextDent; ND)-were divided into four groups (n = 60 per group). Each group was further divided into three subgroups (n = 20) according to printing layer thickness (25, 50, and 100 μm).
Article Synopsis
- The study investigates the color stability, solubility, and water absorption of PEEK and PEKK materials under different storage conditions using red wine, coffee, and distilled water.
- Baseline color measurements were taken before soaking, and after 28 days, significant differences were found in color change, with PEEK showing higher water sorption than PEKK.
- Overall, PEKK showed better performance in terms of less color change and water absorption, suggesting its potential as a preferable material in CAD/CAM applications.