In Vitro Effect of Anodization of Titanium Abutments on Color Parameters and Color Difference of Lithium Disilicate All-Ceramic Crowns.

Objective: This study assessed the effect of the anodization of titanium abutments on the color parameters and color difference of lithium disilicate (LDS) all-ceramic crowns.

Materials And Methods: In this study, 19 straight abutments were divided into two groups: anodized (n = 9) and non-anodized control (n = 9), with one hybrid zirconia abutment as a reference. Anodization was achieved by applying 63 V energy using seven 9 V flat batteries in series, with an electrolyte solution comprising 1 g trisodium phosphate in 250 mL distilled water for 5 s, resulting in a gold-yellow color.

In vitro effect of anodization on surface roughness and bacterial adhesion to titanium abutments.

Statement Of Problem: Titanium abutments are considered the criterion standard for dental implants, yet the gray color poses esthetic concerns. Anodization has been proposed to enhance esthetics, but its effects on surface roughness and bacterial adhesion are unclear.

Purpose: The purpose of this in vitro study was to assess the effect of anodization on surface roughness and bacterial adhesion to titanium abutments.

Haplotype diversity of 17 Y-STR in the Iranian population.

The current study aimed to evaluate Y chromosome haplotypes obtained from 1353 unrelated Iranian males using the AmpFlSTRTM YfilerTM kit; 1353 out of the 1353 identified haplotypes were unique. The haplotype diversity (HD) and discriminating capacity (DC) values were 1.00000 and 0.

Comparative analysis of endocrown fracture resistance and marginal adaptation: CAD/CAM technology using lithium disilicate vs. zirconia-reinforced lithium silicate ceramics.

Aims: The present study aimed to compare the fracture resistance and marginal adaptation of endocrowns fabricated using lithium disilicate (LDS) and zirconia-reinforced lithium silicate 9ZLS) ceramics by the computer-aided design and computer-aided manufacturing (CAD/CAM) technology.

Materials And Methods: In this in vitro experimental study, 24 extracted mandibular first molars received standard endocrown preparation and were randomly assigned to two groups (n = 12) for the fabrication of endocrowns with ZLS (Suprinity) and LDS (IPS e.max CAD) ceramics.

A decade of tobacco control efforts: Implications for tobacco smoking prevalence in Eastern Mediterranean countries.

Background And Objectives: This study aimed to assess the association between the 10-year implementation of tobacco control policies, cigarette affordability index and changes in tobacco smoking prevalence across Eastern Mediterranean (EMR) countries.

Materials And Methods: An ecologic study was conducted using EMR countries as the analytical unit. Data from three sources were utilized: the MPOWER scale to measure tobacco control policy implementation (2010-2020), the tobacco affordability index (expressed as a percentage of GDP per capita required to purchase 2000 cigarettes, from 2010 to 2020), and national tobacco smoking prevalence data for EMR countries (2010-2023).

Assessment of Marginal and Internal Adaptation in Provisional Crowns Utilizing Three Distinct Materials.

Aims: This study aimed to assess the marginal and internal adaptation of provisional crowns fabricated from polymethyl methacrylate (PMMA) blocks by the computer-aided design/computer-aided manufacturing (CAD/CAM) system, autopolymerizing PMMA, and acrylic base composite resin.

Materials And Methods: In this experimental study, a brass die was obtained, and provisional crowns were fabricated in three groups using Teliocad PMMA blocks by the CAD/CAM system, Tempron GC auto-polymerizing PMMA, and Bisico acrylic base composite resin ( = 7 in each group). The provisional crowns were coded and randomly placed on the die.

The healing effects of thymoquinone on experimentally induced traumatic tendinopathy in rabbits.

Objectives: Thymoquinone is a major bioactive compound present in the black seeds of the Nigella sativa. Tendon injuries are almost 50% of all musculoskeletal injuries. The recovery of tendon after surgery has become a significant challenge in orthopedics.

Effect of Volume and Renewal of the Storage Media on the Release of Monomer from Dental Composites.

This study evaluated the effect of the volume and renewing of storage media on monomer leachability from dental composite. Samples of two dental composites (BEAUTIFIL II Gingiva (BG) and Filtek Bulk-Fill Flowable (FBF)) were stored after polymerization in 1 and 3 milt storage media (ethanol/water 75%) for seven days. Refreshing of storage media was done in half of the samples of each group.

Increased phenylpropanoids production in UV-B irradiated Salvia verticillata as a consequence of altered genes expression in young leaves.

Ultraviolet-B (UV-B) radiation as an environmental potential elicitor induces the synthesis of plant secondary metabolites. The effects of UV-B radiation on photosynthetic pigments and dry weight, biochemical and molecular features of old and young leaves of Salvia verticillata were investigated. Plants were exposed to 10.

Histopathological, serological, molecular and electron microscopy detection of Maedi-Visna infection in sheep population in the West of Iran.

Background: Maedi-Visna (MV) is a progressive lymphoproliferative viral disease that affects multiple organs of small ruminants, including sheep and goats. The disease occurs primarily in the lung tissue and causes interstitial pneumonia.

Aims: The aim of present study was to investigate the prevalence of ovine MV infection in Iranian sheep population through macroscopic, histopathological, serological, and molecular assays, as well as transmission electron microscopy (TEM).

Exogenous application of phytosulfokine α (PSKα) delays yellowing and preserves nutritional quality of broccoli florets during cold storage.

In this study, we tested the exogenous application of phytosulfokine α (PSKα) for delaying the yellowing of broccoli florets during cold storage. Our results showed that the lower yellowing in broccoli florets treated with 150 nM PSKα was probably due to the higher endogenous accumulation of PSKα, leading to the endogenous accumulation of guanosine 3', 5'-cyclic monophosphate (cGMP). Besides, broccoli florets treated with 150 nM PSKα exhibited a higher accumulation of phenols and flavonoids by triggering gene expression and activities of phenylalanine ammonia-lyase (PAL) and chalcone synthase (CHS).

Genetic polymorphisms of Y-chromosome short tandem repeats (Y-STRs) in a male population from Golestan province, Iran.

Short Tandem Repeats (STRs), which are located out of pseudo-autosomal parts of the human Y chromosome and passed-down from fathers to the male offspring in a non-recombinant form, are regarded as appropriate markers for forensic purposes and evolutionary investigations. Few studies concerned the genotyping of Y chromosome short tandem repeats (Y-STRs) among the ethnic groups of the north of Iran, especially the province of Golestan which is a multiethnic region of Iran. Thus, in this work we investigated the frequency of Y-STR haplotypes among the male population from Golestan province, to elucidate their identity and kinship patterns.

Profiling of 17 Y-STR loci in Mazandaran and Gilan provinces of Iran.

Background/aim: TheY-chromosome mainly consists of heterochromatin regions that have a father-to-son inheritance. Short tandem repeat polymorphic (STRP) markers distributed all over the chromosome provide the opportunity for investigations in forensic medicine and ancestral lineage studies. Due to the existence of wide varieties of geographical and ethnic groups in Iran, studying Y-STRP markers is necessary for further applications.

High glucose condition limited the angiogenic/cardiogenic capacity of murine cardiac progenitor cells in in vitro and in vivo milieu.

Murine c-kit cardiac cells were isolated and enriched by magnetic activated cell sorting technique. c-kit cells viability and colony-forming activity were evaluated by MTT and clonogenic assay. c-kit cells were exposed to endothelial, pericyte, and cardiomyocyte induction media containing 30mM glucose for 7 days.

Protective effects of melatonin on long-term administration of fluoxetine in rats.

The degree and consequence of tissue injury are highly regarded during long-term exposure to selective antidepressant fluoxetine. Melatonin has been shown to palliate different lesions by scavenging free radicals, but its role in the reduction of the fluoxetine-induced injuries has been little known. Thirty-six mature male Wistar rats were randomly assigned into control and experimental groups.

Histopathological study and F1L gene sequence analysis of contagious ecthyma in small ruminants of Shiraz suburb, Iran.

Contagious ecthyma, also known as Orf, is a common viral skin disease of sheep and goats caused by a Parapoxvirus. This research was conducted with the aims of histopathological study and genetic analysis of Orf virus with PCR technique based on F1L gene in 50 sheep and goats suspicious of contagious ecthyma in affected areas of Shiraz suburb. All 50 contagious ecthyma-like tissue samples were maintained in 10% buffered formalin, embedded in paraffin, sectioned into 5μm slices and dyed with hematoxylin-eosine.

Prestorage oxalic acid treatment maintained visual quality, bioactive compounds, and antioxidant potential of pomegranate after long-term storage at 2 degrees C.

Oxalic acid at three concentrations (2, 4, and 6 mM) was applied by dipping to pomegranate fruits of cv. Mollar de Elche, which were then stored for 84 days at 2 degrees C. Pomegranate is a chilling-sensitive fruit and, thus, control fruits exhibited chilling injury (CI) symptoms after long-term storage at 2 degrees C that were accompanied by increased respiration rate, weight loss, and electrolyte leakage (EL).