OBJECTIVE The aim of this study was to evaluate the shear bond strength (SBS) of brackets bonded to demineralized enamel pretreated with low viscosity Icon Infiltrant resin (DMG) and glass ionomer cement (Clinpro XT Varnish, 3M Unitek) with and without aging. METHODS A total of 75 bovine enamel specimens were allocated into five groups (n = 15). Group 1 was the control group in which the enam...

Introduction: One of the clinical problems in orthodontics is the bonding of brackets tocomposite restorations. The aim of this study was to evaluate the shear bondstrength of brackets bonded to composite restorations using Excite. Methods:Forty brackets were bonded to composite surfaces, which were embedded inacrylic resin. One of the following four protocols was employed for surfacepreparatio...

Aim and Objectives: To compare evaluate the antibacterial efficacy of various nanoparticles incorporated in orthodontic primer with that conventional antimicrobial agents at different concentrations on Streptococcus mutans ( S. mutans) strain. Materials Methods: Transbond XT Primer was mixed 2.5% 5% benzalkonium chloride (BAC), 0.2% chlorhexidine, 1% 3% titanium dioxide (TiO 2 ) nanoparticles, ...

Nanofillers can reduce enamel demineralization without compromising physical properties of the composite. The aim of this study was to evaluate shear bond strength (SBS) and antibacterial effects of an orthodontic composite after adding titanium oxide (TiO2) nanoparticles. Light cure orthodontic composite paste (Transbond XT) was blended with TiO2 nanoparticles. A total of 30 extracted premolar...

BACKGROUND One of the most important complications of fixed orthodontic treatment is the formation of white spots which are initial carious lesions. Addition of antimicrobial agents into orthodontic adhesives might be a wise solution for prevention of white spot formation. The aim of this study was to evaluate the antibacterial properties of a conventional orthodontic adhesive containing three ...

background: bonding of molar tubes is becoming more popular in orthodontics. occasionally, these bonding are done on posterior porcelain crowns or bridges. the purpose of this study was to evaluate the shear bond strength of buccal tubes on feldspathic porcelain crowns with two different methods. materials and methods: forty porcelain right molar crowns were fabricated for this study. the crown...

AIM The aim of this study was to evaluate microleakage under orthodontic ceramic brackets bonded with direct and different indirect bonding techniques and adhesives using micro-computed tomography. MATERIALS AND METHODS A total of 30 human maxillary premolars were randomly separated into five groups with six teeth in each group. In group I, teeth were bonded directly with Transbond XT (3M Uni...

Abstract This study evaluated shear bond strength (SBS), adhesive remnant index (ARI) and fracture mode of chemically mechanically retained ceramic brackets bonded with different composite resins irradiated CO2 laser. The null hypothesis was that laser would have similar SBS values. Ninety human premolars were divided into four experimental groups according to the combination type resin (Transb...

The aim of this study was to compare the clinical performance of a self-etching primer (SEP) with a conventional two-step etch and primer [conventional method (CM)]. The chair time required for bonding was also evaluated. Thirty-seven patients (14 males and 23 females) with a mean age of 16 years 5 months were included in the study. Six hundred and seventy-two brackets were bonded by one operat...

Aim: Orthodontic brackets during their wear cause demineralization of enamel, which is the initial step in caries development. The prevention such spots crucial to ensure healthy teeth, but patients’ compliance not most optimal way. aim this study was compare antimicrobial properties fluoride-containing orthodontic materials without additional fluoride. Materials and Methods: Antibacterial effe...