Gad MMA, Abualsaud R, Al-Thobity AM, Almaskin DF, AlZaher ZA, Abushowmi TH, Qaw MS, Akhtar S, and Al-Harbi FA
European journal of dentistry [Eur J Dent] 2020 Feb; Vol. 14 (1), pp. 19-23. Date of Electronic Publication: 2020 Jan 19.
Objective: The objective of this study was to evaluate the effect of nano-SiO 2 addition on the flexural strength (FS) of repaired acrylic denture base. Materials and Methods: Heat-polymerized acrylic resin specimens were fabricated in dimensions of (65 × 10 × 2.5 ± 0.1 mm 3 ) and then sectioned and prepared, creating repair gap with butt (90 degrees) and bevel (45 degrees) repair surface designs forming two main groups according to joint design. Further subdivision was done into four groups ( n = 10) according to nano-SiO 2 concentration: one unmodified group and three modified groups (0.25, 0.5, and 0.75 wt %) in the autopolymerized repair resin. Each pair of a specimen was assembled in a mold and repaired according to manufacturer's recommendations. Statistical Analysis: Three-point bending test was done to measure FS, followed by scanning electron microscope (SEM) examination for fracture surface analysis. Data were analyzed using ANOVA and Tukey's post hoc test (α = 0.05). Results: The addition of nano-SiO 2 significantly improved FS of repaired acrylic resin in comparison to the unmodified group ( p ˂ 0.05). For butt joint, significant differences between nano-SiO 2 reinforced groups were noticed ( p ˂ 0.05), while reinforced beveled groups did not differ significantly ( p ˃ 0.05). Bevel design remarkably increased FS compared with butt design per respective filler concentration. From the SEM images, improved FS was presented with a homogeneous distribution of nano-SiO 2 within polymethyl methacrylate. Conclusion: Nano-SiO 2 addition to repair resin and 45 degree-beveled repair surface increased FS of repaired acrylic resin.
Shahid R, Zafar A, Nazish S, Alsulaiman A, Alabdali M, Aljaafari D, Ishaque N, Albakr AI, Alamri A, Alkhamis FA, and Saqqur M
Journal of neurosciences in rural practice [J Neurosci Rural Pract] 2019 Apr-Jun; Vol. 10 (2), pp. 278-282.
Objective: Our study aims to evaluate the etiologic and clinical features of cerebral venous sinus thrombosis (CVST) in Saudi Arabia, and secondarily whether gender plays a role in CVST. Materials and Methods: Data were collected retrospectively from the stroke registry during the period from January 2008 to April 2018, and the patients with the diagnosis of CVST were identified, and data were analyzed for any gender-specific differences in clinical presentation and etiology of cerebral venous thrombosis. Results: There were 15 females while 11 males with a female:male ratio of 1.4:1. The mean age was 29.4± standard deviation 8.9 with the age range of 15-49. Headache was the most common and usually the first presenting symptoms present in 65% followed by hemiparesis and cranial nerve palsies. The first neurological examination was normal in 9/26 (34.6%) of the patients, while the common abnormality was cranial nerve palsies. Infections and trauma played an important part in risk factor analysis of our patient after the pregnancy- and hormone-related conditions. Some significant differences between the clinical presentation and risk factors among males and females were noted as age at presentation was higher in females while trauma and infections were common in male patients, although the involvement of the sinuses and response to treatment did not prove to be statistically significant. Conclusion: The results of this study were similar to the available literature with few differences. The relatively higher proportion of males in our study can be explained partly with more cases of traumatic CVST. Some important differences were noted between the risk factors and clinical presentation among genders. Large-scale prospective studies are needed to further clarify these differences.
Zafar A, Shahid R, Nazish S, Aljaafari D, Alkhamis FA, Alsalman S, Msmar AH, Abbasi B, Alsulaiman AA, and Alabdali M
Journal of neurosciences in rural practice [J Neurosci Rural Pract] 2019 Jan-Mar; Vol. 10 (1), pp. 106-112.
Context: Medication nonadherence is a significant barrier in achieving seizure freedom in patients with epilepsy. There is a deficiency of data about the reasons for nonadherence in Saudi population. Aims: The aim of this study is to prove the existence of nonadherence to antiepileptic drugs (AEDs) in patients with epilepsy and identify the responsible factors. Setting and Design: This is a prospective, cross-sectional study carried in the Department of Neurology at King Fahd Hospital of the University affiliated with Imam Abdulrahman Bin Faisal University. Subjects and Methods: Patients of all ages diagnosed to have epilepsy as mentioned in their medical record and taking antiepileptic medications were interviewed using a questionnaire. Statistical Analysis Used: Statistical analysis was performed using IBM Statistical Package for the Social Sciences version 21 (IBM Corp., Armonk, NY, USA). Statistical significance was defined as two-tailed with a P ≤ 0.05. Results: Among 152 participants, 52.6% were male and 47.4% were female. Mean age of the patients was 28 ± 14.3 (mean ± standard deviation) years. Of 152 patients, 48.7% were found to be nonadherent to their AED therapy. The most commonly identified factor was forgetfulness. Nonadherence was significantly associated with poor seizure control ( P = 0.002). Conclusion: Nonadherence to the AED is common among patients with epilepsy and affects seizure control adversely.