PURPOSE The aim of this study was to investigate the accuracy of cone-beam computed tomography (CBCT) in the diagnosis of vertical root fractures in a tooth with gutta-percha and prefabricated posts. MATERIALS AND METHODS This study selected 96 extracted molar and premolar teeth of the mandible. These teeth were divided into six groups as follows: Groups A, B, and C consisted of teeth with ve...

This research demonstrates the feasibility of a roof insulation method for prefabricated offices that uses vinyl packed timber chips to reduce air conditioning loads (hereinafter referred to as AC loads) and which also improves indoor thermal comfort. The advantages of the new roof insulation method were revealed through comparing the impacts of four roof types on prefabricated offices. The AC ...

BACKGROUND Ankle foot orthoses (AFO) are commonly used orthotic device in order to restore the ankle foot function and to improve the balance and gait in post-stroke hemiparetic patients. However, there remain some discussions about their effectiveness on long term hemiparetic patients who had mild to moderate spasticity. AIM To investigate the relative effect of prefabricated thermoplastic p...

BACKGROUND Prefabricated composite free flaps have been described as a technique for reconstruction of laryngotracheal defects. METHODS We present a 74-year-old woman with recurrent papillary thyroid carcinoma (PTC) who was initially treated with thyroidectomy, tracheal resection, and subsequent vocal cord medialization. The patient's recurrent disease was treated with partial laryngectomy an...

Background Custom made foot orthoses remain the ‘gold standard’ because the orthotic geometry is tailored to each patient’s foot. However, due to their reduced cost, in some contexts there has been an increasing preference for prefabricated orthoses. Research has failed to identify major differences between the two types of orthosis [1-4]. This project aimed to design, develop and evaluate a ne...

coronal tooth tissue can use a post to retain a core enabling definitive restoration. Post material has been, until recently, primarily metal--be it cast or prefabricated. Currently, fiber-posts are promoted as being advantageous due to a favorable failure mechanism which may protect the root from fracture [1]. Endodontic posts are necessary to provide adequate retention and support when no suf...

Introduction: Prefabricated foot orthoses are being widely used in the management of foot and lower limb foot pathology (Landorf et al, 2001). There are many difference brands with many different design parameters available on the market for clinical use. They have been shown effective in the clinical management of pathology (Pfeffer et al, 1999; Landorf et al, 2003; Payne & Dawes, 2004). Given...

Analyze the strengths, weaknesses, opportunities and threats existing in the internal and external environment of prefabricated building of our country. Construct a SWOT analysis matrix, drives some relevant countermeasures on it, then provide suggestions for prefabricated building development in our country.

AIM The purpose of this study was to compare the fracture resistance of endodontically treated teeth restored with different post and core systems in combination with complete metal crowns in teeth with no coronal structure. METHOD AND MATERIALS Fifty extracted mandibular premolars were divided into five groups. The coronal portion of each tooth was removed at the cementoenamel junction (CEJ)...

The restoration of broken down puIpless molar teeth generally implies the provision of a cast post and core with a crown. In this research the failure resistance of some restoration methods utilizing amalgam was investigated under an oblique load. The results suggest that intracoronal reinforcement with a prefabricated dowel did not significantly increase the in vitro resistance. It is expected...