Objectives. To examine the interaction between Porphyromonas gingivalis and 3 different orthodontic brackets in vitro, focusing on the effect of an early salivary pellicle and other bacteria on the formation of biofilms. Material and Methods. Mono- and multi-species P. gingivalis biofilms were allowed to form in vitro, on 3 different bracket types (stainless steel, ceramic and plastic) with and...

This study aimed at comparing amounts of nickel (Ni) and chromium (Cr) released from brackets from different manufacturers in simulated oral environments. 280 brackets were equally divided into 7 groups according to manufacturer. 6 groups of brackets were stainless steel, and 1 group of brackets was made of a cobalt-chromium alloy with low Ni content (0.5%). International standard ISO 10271/200...

OBJECTIVE To test the null hypothesis that no difference exists between the effects of at-home bleaching and in-office bleaching on shear bond strength (SBS) with bracket bonding at 4 different time intervals after dental bleaching. METHODS Ninety extracted human premolars were randomly divided into 9 groups (n = 10) according to the bleaching methods used (at-home bleaching and in-office ble...

AIM The aim of this study is to report three cases that needed myofunctional and orthodontic treatment and the good results achieved after the therapy. Orthodontic treatment alone, in presence of bad habits, is not enough to solve the orthodontic issues, so it needs to be combined with myofunctional treatment.

Insignia (Ormco, Orange, Calif) offers custom-designed orthodontic appliances via fully interactive software. It is a precise, start-to-finish process that works with Damon, Inspire ICE, and conventional appliances. Insignia software incorporates the clinician's treatment plan into a virtual 3-dimensional model of each patient's ideal occlusion and delivers a complete custom solution: patient-s...

One of the most essential clinical concepts learned by a future orthodontist is the effective placement of orthodontic brackets. This skill is present at the core of any orthodontic residency clinical curriculum; yet research documenting the most effective methods of teaching this indispensable skill is lacking. The purpose of this pilot study is to assess the impact of different pedagogical mo...

Biquandle brackets define invariants of classical and virtual knots links using skein biquandle-colored links. coloring quivers categorify the biquandle counting invariant in sense defining quiver-valued enhancements which decategorify to invariant. In this paper, we unite two ideas bracket quivers, providing new categorifications brackets. particular, our construction provides an infinite fami...

AIM To compare the adhesive potential, the mechanics implicated in adhesive failure, and the effect on the enamel of four brands of lingual brackets. METHODS One hundred sixty premolars and four types of commercially available lingual brackets (STB, ORG, Magic, and Stealth) were selected. Forty brackets per manufacturer were used, half bonded directly and half indirectly. Each of these bondin...

OBJECTIVE The aim of this in vitro study was to analyze color stability of monocrystalline and polycrystalline ceramic brackets after immersion in dye solutions. METHODS Seven ceramic brackets of four commercial brands were tested: Two monocrystalline and two polycrystalline. The brackets were immersed in four dye solutions (coffee, red wine, Coke and black tea) and in artificial saliva for t...