A comparative evaluation of the efficacy of erbium: yttrium-aluminum-garnet and diode lasers in smear layer removal and dentin permeability of root canal after biomechanical preparation - A scanning electron microscopy study.

The chemomechanical preparation of root canal dentin with hand or rotary instruments creates debris and a smear layer. Root canal preparation (RCP) along with irrigants is not effective in cleaning apical portions, and hence, different laser activation systems were used for better cleaning in the apical third. Aim: The aim of this study is to compare the efficacy of erbium: yttrium-aluminum-garnet (Er:YAG) and diode laser irradiation in smear layer removal and dentin permeability after biomechanical preparation using scanning electron microscopic investigation.

A comparative evaluation of fractural strength and marginal discrepancy of direct composite veneers using four different tooth preparation techniques: An study.

Background: The direct composite veneers follow the concept of no preparation or minimal preparation that has developed an appropriate enamel bonding procedure. The composite veneers can be easily repaired and thus they are economically favorable. The long-term clinical performance of direct composite veneers depends on a number of factors, with fracture resistance and marginal adaptation being one of the significance.

Antimicrobial efficacy of 980 nm diode laser on in conjunction with various irrigation regimes in infected root canals: An study.

Aim: The aim of the present study was to evaluate and compare the antimicrobial efficiency of different irrigating solutions against Enterococcus faecalis with or without the use of 980 nm diode laser in infected root canals.

Materials And Methods: A total of 100 freshly extracted human single-rooted teeth were divided into three experimental groups (n = 30) and one control group (n = 10). Experimental group was subdivided into two subgroups A and B (n = 15), whereas control group was subdivided into positive and negative controls (n = 5).

A Comparative Evaluation of Sealing Ability of New MTA Based Sealers with Conventional Resin Based Sealer: An In-vitro Study.

Introduction: Root canal obturation is the most important step in the root canal treatment that aims to obtain a complete hermetic seal and to prevent the re-growth of microorganisms in the root canal system. To accomplish this, many endodontic obturation materials and sealers are being used.

Aim: To evaluate and compare the apical microleakage of a resin based sealer; Adseal with Mineral Trioxide Aggregate (MTA) based sealers; Pro root MTA and MTA Fillapex.

A comparative evaluation of microleakage and compressive strength of Ketac Molar, Giomer, Zirconomer, and Ceram-x: An in vitro study.

Background: Microleakage around dental restorative material and strength to withstand the masticatory forces is major problem in dentistry. Instead, many new materials available, very few actually bond to tooth surface and bear masticatory load.

Aim: The aim of this study is to evaluate and compare the microleakage and compressive strength of Ketac Molar, Giomer, Zirconomer, and Ceram-x.

Cherubism: a case report.

Cherubism, a pediatric disease, is a self limiting non-neoplastic autosomal dominant fibro-osseous disorder of jaws. It is a self limiting disease and rarely apparent before the age of two years. It occurs in children and predominantly in boys.