Background: There is constant advancement in aesthetic material used dentistry due to increase demand of aesthetics.
 Objectives:
 
 “To evaluate fracture resistance and pattern failure ETT restored with PEEK post no ferule.”
 1mm ferule length.”
 2mm compare the above groups each other.”
 Methods: 30 human RC treated mandibular premolar teeth single root will be d...

Background: The glass fiber post system with a similar elastic modulus to dentin is widely indicated reinforce teeth after the endodontic treatment. Many studies emphasized importance of ferrule effect and length in strengthening endodontically treated teeth. However, simultaneous influence 2 factors on increasing fracture resistance still controversial. Objectives: To evaluate depth insertion ...

In this survey, retrospective and prospective clinical studies dealing with cast-post-and core and fiber posts were reviewed regarding the rate of survival of restorations and the most prevalent failures. Electronic searches of the literature were performed in MEDLINE by crossing the key words: "Fiber post and clinical study", "Fiber post and clinical evaluation", "Cast post-and-core and clinic...

Cylindrical or taper-and-cylinder combination optical fiber probe based on evanescent wave has been widely used for immunofluorescence biosensor to detect various analytes. In this study, in contrast to the contradiction between penetration depth and analyte diameter of optical fiber probe-based evanescent wave, we demonstrate that double-taper optical fiber used in a radiation wave-based all-f...

Passive Q-switching of an ytterbium-doped fiber (YDF) laser with few-layer topological insulator (TI) is, to the best of our knowledge, experimentally demonstrated for the first time. The few-layer TI: Bi₂Se₃ (2-4 layer thickness) is firstly fabricated by the liquid-phase exfoliation method, and has a low saturable optical intensity of 53 MW/cm² measured by the Z-scan technique. The optical dep...

Oblique crown-root fracture in the cervical third of the root is a common event following trauma to the anterior region of the mouth. As a result, sound tooth structure coronal to the attachment apparatus may not be available for restorative needs. Invasion of biological width by fracture line presents a clinical challenge in restorative planning. Placing a restoration margin on sound tooth str...

OBJECTIVES The aim of this study was to determine the knowledge, current approaches, techniques and practices for the restoration of endodontically treated teeth (ETT) among general dental practitioners and specialists in north of Saudi Arabia. METHODOLOGY A standard questionnaire based survey containing 16 multiple choice questions about techniques and treatment methods, frequency of post, t...