Investigating the impact of whitening toothpastes on bioactive resin-based restorative materials: a comparative analysis.

Objective: To assess the color stability and surface roughness of bioactive resin-based composite following exposure to coffee staining and brushing with whitening toothpastes.

Methods: Disk-shaped specimens of Filtek Z250 (FZ), Beautifil Flow Plus (BFP), Activa Presto (AP), and Fuji II LC (FII) were stained with coffee and then brushed with one of three toothpastes, conventional (C-TP), non-peroxide whitening (W-TP) or hydrogen peroxide-containing whitening toothpaste (HPW-TP) for 10 000 cycles. Changes in color (ΔE) and surface roughness were measured.

Solitary Cerebellar Toxoplasmosis as the First Presentation of HIV Infection: A Case Report and Review of Literature.

Toxoplasmosis is the most common space-occupying lesion in HIV-infected patients that typically presents as a space-occupying lesion in the supratentorial region, often manifesting as focal neurological deficits. Infratentorial toxoplasmosis is extremely rare, with a few reported cases in the literature. Here, we are reporting a 53-year-old healthy female presented with isolated single cerebellar toxoplasmosis as a first manifestation of HIV infection.

Medical management for cerebellar mutism syndrome following posterior fossa surgery: A systematic review.

Introduction: Cerebellar mutism syndrome (CMS) is a serious complication of posterior fossa surgeries affecting mainly pediatric age group. The pathophysiology is still not fully understood. It adversely affects the recovery of patients.

Noninvasive assessment of novel nanohybrid resin cement adaptation using cross-polarization optical coherence tomography.

Objectives: Zein-coated magnesium oxide nanoparticles (zMgO NPs) can potentially improve cement adaptation to the tooth-restoration interface, which would aid in minimizing marginal leakage and secondary caries. The aim of this study was to assess the effect of incorporating zMgO NPs on the adaptation of self-adhesive resin cement using cross-polarization optical coherence tomography (CP-OCT) and scanning electron microscopy (SEM).

Methods: Resin inlays were fabricated to be cemented in Class-I cavities of extracted human molars.

Do-not-resuscitate (DNR) Orders' Awareness and Perception Among Physicians: a National Survey.

Background: The concept of do-not-resuscitate (DNR) orders began when medical and surgical interventions increased the possibility of resuscitation in dying patients. Healthcare providers should start to care more about the quality of life rather than quantity. The acceptance of signing DNR orders varies among physicians owing to different reasons and conceptions.

The role of MicroRNA as a potential diagnostic and prognostic biomarker for cerebral aneurysms.

Objectives: To identify the dysregulated functional miRNAs, miRNA-16, miRNA-143, and miRNA-200 as potential biomarkers of cerebral aneurysms(CAs) to aid in diagnosis and prognosis.

Methods: This is a prospective case-control study conducted among patients with CA. All patients' computed tomography angiography (CTA) and interventional angiogram were assessed and studied.

Management of postoperative cerebral vasospasm in skull base surgeries: A systematic review of case reports and series.

Background: This study provides a comprehensive overview of the management of postoperative vasospasm after skull base surgeries. This phenomenon is rare but can be of serious sequelae.

Methods: Medline, Embase, and PubMed Central were searched, along with examining the references of the included studies.

Effect of Antibacterial Agents on Dentin Bond Strength of Bioactive Restorative Materials.

Treating dentin surfaces with antibacterial agents prior to bonding bioactive restorations might affect their mechanical properties. In this study, we evaluated the effect of silver diamine fluoride (SDF) and chlorhexidine (CHX) on the shear bond strength (SBS) of bioactive restorative materials. Dentin discs were treated with SDF for 60 s or CHX for 20 s and bonded with four restorative materials, namely Activa Bioactive Restorative (AB), Beautifil II (BF), Fuji II LC (FJ), and Surefil One (SO).

Noninvasive Adaptation Appraisal of Antimicrobial Nano-Filled Composite.

Objective: The aim of this research was to assess the effect of incorporating zein-coated magnesium oxide (zMgO) nanofillers to resin-based composite on the internal adaptation of the restorations using cross-polarisation optical coherence tomography (CP-OCT).

Methods: Thirty noncarious human molar teeth were used. Class V cavities (3 × 5 mm) were prepared on the buccal and lingual surfaces of each tooth.

Progression of Enamel Demineralisation Around Fissure Sealants: Optical Coherence Tomography Study.

Purpose: To evaluate the progression of enamel demineralisation around fissure sealants using cross-polarisation optical coherence tomography (CP-OCT).

Materials And Methods: Three fissure sealants; Fuji Triage (FJ, GC), Beautisealant (BT, Shofu) and Helioseal resin sealant (HL, Ivoclar Vivadent) were placed in cavities (3 × 0.5 × 1 mm) prepared in bovine enamel blocks (n = 5).

Computer vision syndrome among Saudi population: An evaluation of prevalence and risk factors.

Introduction: In the recent era of technological evolution, electronic devices have become an essential part of our lives, not merely in professional work settings, but also in daily leisure activities. Although these devices have simplified our lives, they are associated with a wide variety of health complaints. Thus, the so-called computer vision syndrome (CVS) has become a growing public health problem and has gained significant attention as it plays an important role in the quality of life of each individual, which in turn has put an increased burden on the health care system.

Evaluation of microleakage in class-II bulk-fill composite restorations.

Background/purpose: Despite the clinical appeal of restoring deep class II cavities in single increment using bulk-fill resin composite, sealing of bulk-filled composite restorations is a concern. This study evaluated interfacial adaptation of bulk-fill composite restoration to axial wall and gingival floor of class II cavities using cross-polarization optical coherence tomography (CP-OCT).

Materials And Methods: Box-shaped class II cavities were prepared in extracted molars and divided into three groups ( = 7) according to adhesive used; Clearfil SE Bond 2 (SE2), Tetric-N Bond Self-Etch (TSE) or Tetric-N Bond Universal (TNU).

Bilateral uniportal video-assisted thoracoscopic sympathectomy for managing secondary Raynaud's in CREST syndrome: A case report.

Introduction: Secondary Raynaud's is a manifestation that can present in CREST syndrome as a variant of five different diseases: Calcinosis, Raynaud's phenomenon, Esophageal dysmotility, Sclerodactyly, and Telangiectasia. Secondary Raynaud's presents as a result of an imbalance between vasoconstriction and vasodilation potentially leading to tissue ischemia. The mainstay treatment is medical while surgery treatment preserved as a last resort.

Pathway-Affecting Single Nucleotide Polymorphisms (SNPs) in RPS6KA1 and MBIP Genes are Associated with Breast Cancer Risk.

Background: Genetic mutations and polymorphisms play an important role in the transformation of primary cells to malignant cells as it may lead to disturbance of vital pathways regulating cell cycle, DNA damage repair, and apoptosis. In this study, we genotyped single nucleotide polymorphisms (SNPs) which were predicted to affect certain pathways and to increase the risk of breast cancer.

Methods: The study included 81 Saudi breast cancer patients and 100 matching healthy controls from the Eastern Province in Saudi Arabia.

Spontaneous Regression of Pineal Region Arachnoid Cyst: A Case Report and Review of Literature.

Arachnoid cyst is a rare benign cerebrospinal fluid-filled cyst that can develop anywhere in the brain along the arachnoid membrane and usually unaccompanied by the anomalous development of the brain structure. These cysts are usually located in the middle cranial fossa. However, they are also denoted in other regions.

Effect of light irradiation condition on gap formation under polymeric dental restoration; OCT study.

Objective: To investigate the effect of two light-curing systems; quartz tungsten-halogen (QTH) and light-emitting diode (LED), and irradiation time on interfacial gap formation of dental composite resin restorations bonded with an adhesive resin using optical coherence tomography (OCT).

Materials And Methods: Forty cavities were prepared in extracted human molar teeth and divided into four groups (n=10) based on the type of light curing system QTH (LITEX 680A) and LED (Demi Plus) and curing duration (10 s or 40 s). A single-step self-etching dental adhesive (Tetric® N-Bond; Ivoclar Vivadent AG, Schaan, FL, Liechtenstein) was applied and polymerized with QTH for 10 s (QTH-10), or for 40 s (QTH-40).

Phenytoin Seizure Prophylaxis Therapy Resulting in Severe Thrombocytopenia After Brain Tumor Debulking Surgery.

BACKGROUND Phenytoin is an antiepileptic drug that is usually prescribed as a prevention treatment for tonic-clonic seizures or partial seizures, and as a prophylaxis for the neurosurgical related seizures. Phenytoin administration has several drawbacks; one drawback phenytoin-induced thrombocytopenia, which is a rare and significant adverse event. We report a rare adverse event after phenytoin prophylaxis therapy after a brain tumor debulking surgery, which resulted in severe unpredicted thrombocytopenia.

A Case Report of Intraparenchymal Neurocysticercosis in a Postpartum Female in Saudi Arabia.

Neurocysticercosis is a neurologic disease caused by infection with larvae of . It is most commonly transmitted by consumption of pork, water contaminated with or poor hygiene habits. As only few cases of neurocysticercosis have been documented in Saudi Arabia, the authors report a case of neurocysticercosis in a young Indian female residing in Saudi Arabia who presented with generalized tonic-clonic seizures 6 days after a normal vaginal delivery.

Dental cements: Bioactivity, bond strength and demineralization progression around restorations.

Purpose: To evaluate demineralization progression around indirect restorations placed with various cements using swept-source optical coherence tomography (OCT) and microshear bond strength (MSBS) to enamel and dentin.

Methods: Resin inlays in cervical preparations (4×2 mm) were luted with two glass ionomer luting cements, Fuji I (FI) and RelyX Luting Cement (RL) and two adhesive cements, Adshield RM (AD) and RelyX Unicem 2 (UC). After 7-day artificial saliva incubation and 10,000 thermal cycles, specimens were demineralized (pH 4.

Tumefactive multiple sclerosis masquerade as a central nervous system tumor: a case report.

Introduction: Tumefactive multiple sclerosis is a demyelinating disorder that appears tumor-like on MRI. To most physicians, diagnosing tumefactive MS by applying clinical, radiological, or laboratory examination like Cerebrospinal fluid (CSF) analysis, can be challenging and ultimately biopsy is necessary to confirm the diagnosis.

Case Presentation: This paper reports a case of a 37-year-old woman who presented with progressive headache and a strong family history of cancer and was misdiagnosed as having a CNS glioma.

Effect of self-etch adhesives on the internal adaptation of composite restoration: a CP-OCT Study.

Despite improvements in dental adhesive materials, internal adaptation remains a challenge in bonded restorations. The aim of this study was to compare microgaps and internal floor adaptation between two different self-etch adhesives in class-V cavities using cross-polarization optical coherence tomography (CP-OCT). In this in vitro study, standardized round class-V cavities were prepared in 20 non-carious human upper central incisor teeth.

Optical Evaluation of Enamel Microleakage with One-Step Self-Etch Adhesives.

Objective: In this in vitro study, cross-polarization optical coherence tomography (CP-OCT) was used to evaluate microleakage in dental composite restorations bonded to enamel with two types of one-step self-etching (SE) adhesives.

Background Data: One-step SE adhesives were proposed to simplify bonding of composite restorations. However, bonding of these simplified adhesive to dental enamel is still questionable.