Fracture resistance of tooth restored with four glass fiber post systems of varying surface geometries-An in vitro study.

Background: The purpose of this study was to relate the fracture resistance of endodontically treated teeth in relation to post geometry.

Material And Methods: Forty single rooted mandibular premolars were instrumented by step - back technique and obturated by lateral condensation. Forty teeth were randomly divided into four groups: Reforpost glass fiber X-ray®, RelyX®, Exacto conical® and Parapost Fiber Lux®.

Anaesthetic Efficacy of Topical Benzocaine Gel Combined with Hyaluronidase for Supplemental Intrapulpal Injection in Teeth with Irreversible Pulpitis- A Double Blinded Clinical Trial.

Objective: Intrapulpal injection technique is one of the most commonly employed method to achieve profound pulpal anaesthesia during an endodontic procedure. To determine if the topical application of benzocaine gel along with hyaluronidase to the pulp chamber could reduce the pain felt with the intrapulpal injection technique.

Materials And Methods: Two hundred patients with chronic irreversible pulpitis undergoing endodontic treatment for mandibular first molars in which the primary anaesthetic technique failed were selected and randomly divided into 2 groups.

Remineralization efficiency of bioactive glass on artificially induced carious lesion an in-vitro study.

Objectives: The objective of this study is to investigate the efficacy of bioactive glass containing product on remineralization of artificial induced carious enamel lesion and to compare its efficiency with other remineralization products using an in-vitro pH cycling method. The null hypothesis tested was bioactive glass has no effect on enamel remineralization.

Materials And Methods: A total of 20 enamel samples of human molar teeth were subjected to artificial caries lesion formation using pH cycling method and was verified using high resolution scanning electron microscope (HRSEM).

Evaluation of manual and two-rotary niti retreatment systems in removing gutta-percha obturated with two root canal sealers.

Objective. The objective of this study was to evaluate the efficacy of two retreatment NiTi systems (protaper universal retreatment files, R-Endo), when compared to manual technique in removing Gutta-percha obturated with two sealers. Study Design.