The aim of this study was to investigate the prevalence and severity corona-associated anxiety mental health disorder among Iranian dentists during COVID-19 pandemic.

ObjectiveDental plaque bacteria, including Streptococcus mutans (SM), play a role in the pathogenesis of dental caries. There are conflicting results regarding association salivary SM level and caries susceptibility. Our aim was to compare levels colony-forming units (CFU) between children with active caries-free Birjand, Iran.MethodsThis case-control study included 61 six-year-old referred health centers Birjand city, Iran, 2022. The were divided into two groups: case (dmft/DMFT>0 caries)...

Background: Adenoid cystic carcinoma (AdCC) is a malignant salivary gland neoplasm with poor long-term prognosis. Differentiating between AdCC and other neoplasms can be diagnostic challenge, particularly in examining tissues obtained from small incisional biopsies. Aim: The aim of this study was to evaluate c-kit expression four common benign neoplasms. Materials Methods: Immunohistochemical techniques were used analyze the level normal (n = 10) different types tumors: Pleomorphic adenoma...

Objective: Ameloblastoma and keratocystic odontogenic tumor (KOT) is characterized by a benign but locally invasive behavior with high risk of recurrence. MDM2 (murine double minute 2), an amplifier cell proliferation, p53, suppressor gene, are overexpressed in some lesions. The aim this study was to compare the expression p53 ameloblastoma KOT as 2 lesions similar biologic behavior, immunohistochemistry. Methods: expressions proteins were determined 39 ameloblastomas (15 follicular types,...

Abstract Objectives Oral lichen planus (OLP) is a cell‐mediated inflammatory mucosal disorder and classified as an oral potentially malignant disorder. Some research has shown that apoptosis in OLP cells similar to viral infection such human papillomavirus (HPV). So, the aim of this case‐control study was investigate association high‐risk HPV with OLP. Material Methods DNA extracted from 25 formalin‐fixed, paraffin‐embedded (FFPE) tissues FFPE normal case control groups, respectively. The...

Actinomycosis is an infection of filamentous, gram-positive anaerobic bacteria. jaw bone rare and the diagnosis often difficult. The aim this patient report to present actinomycotic osteomyelitis mandible in a 30-year-old male patient. presented with chief complaint pain unhealed dental socket after mandibular teeth extractions. Radiographs showed ill-defined radiolucencies perforation buccal lingual cortical plate; several biopsies different therapy could not improve lesion because fault...

Introduction: Lymphoma is the second most common malignancy of head and neck. Many studies have been carried out in different population groups to detect subtypes oral jaw lymphoma, but such research has not conducted Iran. The purpose this study was determine lymphoma by immunohistochemistry. Materials Methods: A total 36 paraffin-embedded blocks (25 males 11 females) with primary diagnosis non-Hodgkin were studied immunohistochemical markers according cellular morphology. Results:...

Cytogenetic biomarkers such as micronuclei (MN) are used for the evaluation of exposure to carcinogens and genotoxic effects in oral epithelial cells. Tobacco is one strongest responsible development cancer mucosa. The aim this study was compare effect waterpipe smoking with that cigarette smoking.This case-control performed on 30 smokers, nonsmokers. Buccal exfoliated cells were prepared using cytobrushes stained Papanicolaou technique. cytologic slides examined under a light microscope...

Abstract Objectives To investigate common pathogenic bacteria of periodontal diseases (PD) in patients with type 2 diabetes mellitus (T2DM) and its relationship PD severity, glycemic control body mass index (BMI). Material Methods This case–control study consisted 55 T2DM individuals as control. Samples were collected from pockets. After DNA extraction, using 16srRNA‐specific primers, the presence Aggregatibacter actinomycetemcomitans (Aa), Porphyromonas gingivalis (Pg), Tannerella forsythia...

Coronavirus disease 2019 (COVID-19) is a novel pandemic. Considerable differences in severity and the mortality rate have been observed different parts of world. The present study investigated characteristics outcomes patients hospitalized with COVID-19 Iran.We established retrospective cohort to Iran. Epidemiological, imaging, laboratory, clinical were recorded from medical documents. chi-square test, t-test, logistic regression models used analyze data. A p<0.05 was considered indicate...

A hermetic seal of the root canal space following preparation is important in endodontics. This study evaluated effect curve on adaptation gutta-percha to dentinal walls canals obturated using Herofill system. For this vitro study, 80 mesial roots mature human first molars with length 16 mm, between 5° and 45°, no caries or resorption surface were selected. cone beam computed tomography system was used evaluate presence absence a gap samples. Photographs taken three sections: 2 mm above...

BACKGROUND: Coronavirus disease 2019 is a new viral outbreak in the world. Dentists and their assistants are at greatest risk of exposure to virus, due close contact with patients dealing aerosols. Hence, aim this study was compare use personal protective equipment (PPE) supplementary (SPE) observance principles infection control (PIC) dentists before after corona crisis. MATERIALS AND METHODS: This cross-sectional conducted using an online survey from May 6 20, 2020. Convenience sampling...

Introduction Smoking is the most important etiologic factor of oral cancer. Exfoliative cytology best method for early detection Toluidine blue staining used premalignant and malignant lesions. The aim this study was to enhance accuracy exfoliative in evaluating dysplastic features using toluidine staining. Methods Materials This clinical trials performed on 60 male smokers nonsmokers without clinically lesion. Oral cytological smears were prepared before after application stained with...

Background: Astrocyte elevated gene 1 (AEG-1), also known as metadherin, is an oncogene which overexpressed in various types of cancer, playing important roles invasion, metastasis, angiogenesis and chemotherapy resistance. Hence it might be used a therapeutic target. The aim this study was to evaluate the expression AEG-1 novel molecular marker oral squamous cell carcinomas establish correlations with clinicopathologic factors. Materials Methods: Thirty formalin fixed paraffin-embedded...

Central odontogenic fibroma (COF) is an extremely rare benign tumor, which associated with unerupted tooth in one-third of the cases. Hyperplastic dental follicle (HDF) hamartomatous lesion delayed or eruption failure young patients. Dentigerous cyst (DC) epithelial-lined developmental surrounding crown impacted tooth. Here, we present a case 13-year-old boy pericoronal radiolucency around right maxillary canine tooth, detected during routine examination on panoramic radiograph. The size was...