polymerization contraction may produce defects in the composite - tooth bond. this may lead to bond failure and microleakage. the aim of this study was to reduce microleakage of posterior composites using different methods. 45 molar and premolars extracted teeth were choosen. the cavities were randomly assigned into 5 groups of 9. box-shaped cavities were prepared on each side of proximal surfa...

purpose: to report the visual outcomes and complication of one-stage surgery for management of uveitic cataracts associated with posterior segment disease. methods: in this retrospective interventional case series, 19 eyes of 19 patients with posterior segment involvement due to chronic uveitis underwent sutureless scleral tunnel incision phacoemulsification combined with total vitrectomy using...

Background: The purpose of this study was to introduce a technical tip for the preparation of tibial tunnel in a posteriorcruciate ligament (PCL) reconstruction to reduce the chance of popliteal artery injury and duration of the surgery.Methods: This study included 18 patients who underwent PCL reconstructions at Imam Khomeini University Hospital,Tehran, Iran, between 2016 and...

Introduction: Based on the invasive studies it has been shown that factors such as age, the progress of eye disorders, lens fibers compression and the biochemical changes of ocular matrix alter the physical characteristics and elastic properties of eye. In this study, a noninvasive method of estimating human eye elasticityis proposed and its relation with age and gender is evaluated using ultra...

Background: Posterior tibial slope (PTS) is an important factor in the knee joint biomechanics and one of the bone features, which leads to knee joint stability. Posterior tibial slope affects flexion gap, knee joint stability and posterior femoral rollback that are related to wide range of knee motion. During high tibial osteotomy and total knee arthroplasty (TKA) surgery, proper retaining the...

Objectives Despite the importance to use face-bow record for transferring maxillary cast to articulator some dentists use average points to avoid the time taken and ease of use. The location of incisal point could help to set the maxillary cast or denture in an appropriate position in mounting stage. This study was designed to determine the incisal point location in ante...