Objectives Root resorption is a dangerous side effect in orthodontics, and maxillary incisors are at the highest risk for root resorption. It is important to understand optimal force considerations for patients with altered root lengths.The purpose of this study was to investigate the effects of root length on stress distribution on roots by means of three dimensional fi...

purpose : to evaluate efficacy, complications, and patient satisfaction using local anesthesia (la), in comparison to with general anesthesia (ga) in external dacryocystorhinostomy (dcr) methods : in this prospective study, 149 patients with complete nasolacrimal duct (nld) obstruction who were candidates for external dcr were randomized in 2 groups: ga 73 patients, and la 76 patients. intraope...

abstract   background and purpose: traditional lecture-based teaching has been long used to transit theoretical knowledge to the participants. due to some problems of this didactic approach, some believe that integration within an active method is more valuable in nursing education. in this study, we hypothesized that integrating lecture-based teaching within clerkship course would enhance nurs...

augmentation of the maxillary sinus is a highly predictable and effective procedure to increase bone volume in the posterior maxilla. Success rates are equal to or better than that of all implants placed in nongrafted maxillary bone in or out of the sinus. Consequently, even in situations where the interocclusal dimension is normal or only moderately increased due to loss of bone height, bone a...

A review of maxillary sinus floor elevation as an integral part of restoring the posterior maxilla is discussed. The related anatomy of the area and the current techniques available are reviewed. The classic lateral antrostomy pioneered by Tatum appears to be the most common sinus lift procedure. The more conservative crestal approach, advocated by Summers, provides another effective way of all...

Forty-eight Endopore dental implants were placed in the posterior mandibles of 24 partially edentulous patients. Seventeen of these implants replaced premolar teeth, while 31 replaced molars. Only 7-mm and 9-mm implants were used, and the majority of prosthetic restorations (83%) were single crowns. After a mean functional time of 32.6 months (range, 8.2 to 50.3 months), the implant survival ra...

Maxillary sinus augmentation has been shown to be a predictable treatment option for placing dental implants in areas of posterior maxilla with lack of sufficient residual alveolar bone height.1 The transalveolar (crestal) and the lateral window are the main techniques for the maxillary sinus augmentation with the goal of creating a space beneath the Schneiderian membrane in which to place vari...