Effect of photodynamic therapy by 810 and 940 nm diode laser on Herpes Simplex Virus 1: An in vitro study.

Introduction: Herpes simplex virus (HSV) is among the most common viruses in humans. HSV1 is often responsible for oral and perioral herpetic lesions. Photodynamic therapy (PDT) is a novel antimicrobial modality that involves the use of laser and a photosensitizer with a specific wavelength.

Role of Somatic Testicular Cells during Mouse Spermatogenesis in Three-Dimensional Collagen Gel Culture System.

Objective: Spermatogonial stem cells (SSCs) are the only cell type that can restore fertility to an infertile recipient following transplantation. Much effort has been made to develop a protocol for differentiating isolated SSCs in vitro. Recently, three-dimensional (3D) culture system has been introduced as an appropriate microenvironment for clonal expansion and differentiation of SSCs.

Dental caries prevalence in human immunodeficiency virus infected patients receiving highly active anti-retroviral therapy in kermanshah, iran.

Objective: Introduction of new approaches for the treatment of human immunodeficiency virus (HIV) infection such as anti-retroviral medicines has resulted in an increase in the life expectancy of HIV patient. Evaluating the dental health status as a part of their general health care is needed in order to improve the quality of life in these patients. The aim of this study was to compare the root and crown caries rate in HIV patients receiving highly active antiretroviral therapy (HAART) with that rate in HIV patients without treatment option.

Comparison of salivary antioxidants in healthy smoking and non-smoking men.

Background: Tobacco use is known as a serious global public health problem, and is also an important risk factor for oral diseases. Saliva is the first biological medium encountered during inhalation of cigarette smoke. Therefore, the main aim of this study was to compare the levels of salivary antioxidants between healthy smoking and non-smoking men.

Histologic effects of demineralized bone matrix on regeneration of alveolar socket in diabetic rats.

Introduction: The aim of this in vivo study was to determine the effect of demineralized bone matrix (DBM) on alveolar bone repair in type I diabetic rats.

Materials And Methods: This study was carried out on 40 adult (8 weeks-old) albino rats with an average weight of 200-250 grams. The animals were divided into four groups (n=10) as follows: group 1 nondiabetic rats, group 2, 3 and 4 were diabetic rats, group 4 rats took one unit of insulin daily.

Serum Interleukin-6 as a Serologic Marker of Chronic Periapical Lesions: A Case-control Study.

Background And Aims: Chronic periapical disease with pulpal origin is an inflammatory condition caused by bacterial infection. Chronic infection could affect general health by increasing the production of cytokines such as interleukin-6 (IL-6) that probably play a role in pathogenesis of pulpal and periapical diseases. The aim of the present study was a comparative evaluation of the level of serum IL 6 in patients with periapical lesions and healthy controls.

Root Canal Configuration of One-rooted Mandibular Canine in an Iranian Population: An In Vitro Study.

Background And Aims: A perfect endodontic treatment necessitates proper understanding of the morphology of canal and pulpal variations. This in vitro study was conducted to demonstrate the in-ternal anatomy of mandibular canine teeth in an Iranian population.

Materials And Methods: The samples consisted of 100 extracted mandibular permanent canines.

Epidemiology of pemphigus in tehran, iran: a 20-year retrospective study.

Background And Aims: Pemphigus is a chronic autoimmune and vesiculobollous disease that can affect skin and different mucous membrane surfaces. Primary manifestations occur in oral cavity in almost 60% of cases. The purpose of the present study was to evaluate the epidemiology of pemphigus in Tehran, Iran in a 20-year period.