Background and Aim: Bacterial disinfection is considered as the primary etiology of pulpal and periapical lesions and as the result, adequate elimination of such infections is one of the purposes of root canal treatment; But since this purpose is impossible to achieve, reducing the bacterial load seems to be as a rational goal. Diode lasers have made their way into endodontics for better disinf...

 ABSTRACT In this research the effects of low power Ga – As Laser irradiation applied to acupuncture points on subjective symptoms in chronic Lateral epicondylitis were studied. The method of this study was quasi Experimental. Thirty two patiens (age range 22 – 57 years) with clinically diagnosed chronic lateral epicondylitis took part in this study. All referred patients were examined (exclusi...

Introduction: Recently, Er:YAG laser has been used for tooth preparations and silorane-based composites have been introduced to dentistry, though investigating this type of composites has received scant attention. Therefore, the aim of this study was to compare microtensile bond strength (MTBS) of silorane- based composite (Filtek P90 3M/USA) to enamel sufaces, prepared by Er:YAG laser irradiat...

Background and Aim: Among destructive treatments for removal of unwanted hair, hair removal laser devices have widely replaced the old fashion methods due to their safety and effectiveness. The purpose of this study was to analyze the effective factors on treating unwanted hairs with a laser device. Methods: This retrospective study, was performed on records of 122 patients who referred to a...

Postsurgical scars are of significant concern to both the patients and surgeons. Different laser systems have been used to accelerate and improve the healing process in surgical scars. Some studies have demonstrated the benefits of prophylactic laser application on pre-scars. It seems that using laser energy in the early phase of the healing process may produce changes in the physiology of woun...

To evaluate laser irradiation effect on salinity tolerance in barley (Hordeum vulgare L.) at the germination phase and seedling, a CRD experiment in factorial arrangement experimental type was conducted at Tehran University, college of Abouraihan, in the year 2011. Experimental factors were four barley genotypes (Reihan, Afzal, Fajr30 and Nosrat), two radiation levels (no laser and laser irradi...

Background and Objective: Photodynamic therapy is a new therapeutic modality for the treatment of cancer. Photodynamic therapy uses an inactive drug and a light source to activate the drug to produce reactive oxygen species that destroy the cancer cells. In the present study, the effect of two different laser light sources on the efficiency of photodynamic therapy was evaluated using a breast c...

Background and Aims: Despite significant decline in dental caries in recent decades, the disease remains a public health problem especially in developing countries. In recent years combined application of laser and fluoride has been introduced as a new caries-preventive measure. The purpose of the present study was to review the literature on the preventive effect of combined application of ...