Publications by authors named "Yasser M Alqahtani"
Effects of Time-Elapsed Bleaching on the Surface and Mechanical Properties of Dentin Substrate Using Hydrogen Peroxide-Free Nanohydroxyapatite Gel.
Int J Nanomedicine
October 2024
Introduction: There is a critical need to address concerns surrounding the potential impact of bleaching gels specifically on the tooth substrate. Therefore, this laboratory investigation aimed to assess the impact of a hydrogen peroxide (HP)-free bleaching (HiSmile) in comparison to an HP-based bleaching (Opalescence Regular) on the surface and mechanical characteristics of tooth substrate.
Methods: Sixty sound human premolar teeth were sectioned to produce dentin fragments and divided into two primary groups based on the bleaching agent used.
Article Synopsis
- This systematic review evaluates the quality of root canal fillings (RCF) and procedural errors when using rotary systems in various clinical settings, analyzing studies published from January 2020 to March 2024.
- Sixteen clinical studies were reviewed, showing high acceptance percentages for key RCF metrics: obturation length (76.3%), density (74.7%), and taper (82.5%), with an overall acceptability rate of 68.2% for the fillings.
- The review concludes that using rotary instruments in root canal treatments generally yields good quality results and limited procedural errors across different practice environments, promoting their recommendation for clinical use.
Article Synopsis
- The laboratory experiment aimed to enhance the mechanical properties of glass ionomer cement (GIC) by adding micron-sized silanized glass fibers (GFs) to the GIC luting powder.
- Two concentrations of GFs (0.5% and 1.0% by weight) were tested, with the reinforced GICs evaluated for various mechanical and physical properties using advanced techniques like micro-CT.
- The results showed that adding 0.5 wt.% GFs to Ketac Cem Radiopaque (KCR) GIC improved several mechanical properties without negatively affecting other physical characteristics, whereas the same addition to Medicem (MC) GIC had harmful effects.
Aim: This study aimed to evaluate the mechanical (i.e., flexural modulus [FM], flexural strength [FS], and surface roughness [R]) and antibacterial efficacy of photo-sonodynamic therapy via methylene blue-loaded poly(D,L-lactide-co-glycolide) nanoparticles (MB-loaded PLGA NPs) over dental implants for potential treatment of peri-implantitis.
View Article and Find Full Text PDFAim And Objective: The current study aimed to assess and compare the effectiveness of photosensitizers rose Bengal (RB), riboflavin, and curcumin (CP) to the conventional canal disinfection regime sodium hypochlorite (NaOCl) on the bonding interface of a fiber post cementation system.
Materials And Methods: Sixty nontraumatic, extracted, and closed apex human mandibular second premolars were gathered and disinfected. All specimens were decoronated and embedded perpendicularly in heat cure acrylic resin.
Aim: To evaluate the impact of graphene oxide (GO) and silver diammine fluoride (SDF) in comparison to photodynamic therapy (PDT) on adhesive bond integrity and microleakage scores of resin-modified glass ionomer cement (RMGIC) to demineralized dentin.
Methods: 80 non-carious and atraumatic third molars were mounted inside the segments of polyvinyl pipes. Exposure, homogenization, and polishing of dentinal tubules was performed.