background: marginal seal has a principal role in durability and clinical success offissure sealants. the aim of this study was to compare the microleakage of two materials used as pit and fissure sealant with different methods of application. methods: the 55 extracted premolars were assigned randomly to one ofthe following five groups: group 1: acid-etching (ultra-etch) + fissure sealant (conv...

Empty azygos fissure implies dislocation of the azygos vein to the mediastinal side of the right upper lobe from azygos fissure, which is usually secondary to pneumothorax, pleural effusion, parenchymal fibrosis, vertebral collapse or persistent vomiting. We are presenting here a case where a separated azygos vein in CT and radiography images was noted. Moreover, in the follow-up images, it app...

micro-leakage, one of the major reasons for recurrent decays, may lead to uncontrollable flow of liquids, pulp inflammation and peri-apical pathology. the purpose of this in vitro study was to evaluate micro-leakage of pit and fissure sealants after using three different pit and fissure preparation techniques: 1) acid etching, 2) fissure enameloplasty and acid etching, and 3) air abrasion and a...

Background: Considering,  the high prevalence of nipple fissures as well as the importance of neonatal health and, on the other hand, the increasing use of herbal medicines, we decided to conduct a systematic review on the effects of peppermint on nipple fissure. Materials and Methods: In this systematic review, all clinical trial...

The essential organ for respiration and inspiration of human beings are Lungs. It consists of five distinct lobes which are separated by three fissures (the boundaries of lung lobes are the areas containing fissures and having absence of bronchial trees). They are two oblique (left and right) fissures and one horizontal fissure. The left lung consist of left oblique fissure which separates the ...

OBJECTIVE This is a report of a novel treatment approach for chronic anal fissure using minimally invasive sacral nerve stimulation (SNS). MEASUREMENTS The patient underwent uneventful placement of 1 temporary 8-electrode lead (Medtronic Inc, Minneapolis, Minnesota) for sacral nerve root stimulation. RESULTS The patient experienced instantaneous relief of perineal pain after start of SNS an...

background and aims. newer curing units such as plasma arc can polymerize the sealants in much shorter curing times. the aim of this study was to compare the effect of two different curing units on the micro-leakage of a fissure sealant material. materials and methods. sixty two extracted premolars without caries were randomly divided into two groups of 31 samples. occlusal surfaces of all teet...