Publications by authors named "Alfonso Catalan"
Objectives: The purpose of this study was (i) to investigate whether nanocomposite poly(methyl-methacrylate)-zinc oxide nanowires (PMMA-ZnO-NWs) have antibiofilm activity; (ii) to evaluate the interaction between components of the nanocomposites based on PMMA-ZnO-NWs by Raman spectroscopy; and (iii) to assess ultrastructural alterations.
Design: Sixty-eight rectangles (17 PMMA (control) and 51 PMMA-ZnO-NWs (250, 500, 1000 ppm ZnO nanowires) were fabricated. ATCC 10231 and a clinical strain were tested.
Statement Of Problem: Interim restorations are occasionally left in the mouth for extended periods and are susceptible to bacterial infiltration. Thus, dental interim cements with antibacterial properties are required.
Purpose: The purpose of this in vitro study was to determine in vitro antibacterial activity against Streptococcus mutans and to compare the diametrical tensile strength (DTSs) of dental interim cement modified with zinc oxide nanoparticles (ZnO-NPs) with that of cement modified with terpenes.
Article Synopsis
- This study aimed to evaluate the effectiveness of a terpenic denture cleanser in removing biofilm from dentures, using scanning electron microscopy (SEM) to analyze results.
- Forty denture samples were divided into four groups and immersed in different cleaning solutions for 12 hours, with SEM analysis revealing that the terpenic cleanser was significantly more effective in biofilm removal compared to other products tested.
- Results showed that while the terpenic cleanser left the least biofilm, Fitty Dent was the least effective, highlighting the terpenic cleanser as a superior option for maintaining denture hygiene.
Purpose: Patients with atrophic edentulous ridges generally have problems with retention, therapeutic satisfaction, and comfort with their complete dentures. An alternative treatment to assist in improving retention and stability involves the use of mini-implants. The aim of this study was to evaluate the retention of mandibular overdentures connected to two mini-implants and overall patient satisfaction with them.
View Article and Find Full Text PDFIn vitro activity of terpenes against Candida albicans and ultrastructural alterations.
Oral Surg Oral Med Oral Pathol Oral Radiol
November 2014
Objective: The purpose of this study was to investigate the in vitro activity of terpene blends combined with tissue conditioner against Candida albicans and the effect on its morphology and sub-micro structure.
Study Design: The minimal inhibitory concentration (MIC) of terpenes, obtained from a by-product of kraft pulping, was determined using broth microdilution against C. albicans strains, and the activity of terpenes combined with Coe-Comfort tissue conditioner was assessed.
In vitro and in vivo activity of Melaleuca alternifolia mixed with tissue conditioner on Candida albicans.
Oral Surg Oral Med Oral Pathol Oral Radiol Endod
March 2008
Objective: The aim of this study was to identify in vitro and in vivo activity of Melaleuca alternifolia oil mixed with different tissue conditioners on the Candida albicans strain.
Study Design: Microbiological tests were used to isolate Candida albicans from patients with denture stomatitis. The in vitro antifungal activity of Melaleuca alternifolia against Candida albicans was determined when it was applied directly and when it was mixed with tissue conditioners (Fitt, Lynal, Coe-Comfort).