Silver diamine fluoride and bond strength to enamel in vitro: A pilot study.

Purpose: To evaluate if pre-treatment with silver diamine fluoride (SDF) adversely affects the bond strength of orthodontic brackets to enamel.

Methods: 30 extracted non-carious permanent molar teeth were embedded in acrylic resin cylinders with buccal surfaces exposed and randomly divided equally into two groups. The experimental enamel surfaces were treated with 38% SDF applied for 1 minute between phosphoric acid etch and metal orthodontic bracket bonding with Transbond XT Light Cure Adhesive.

Surface analysis of study models generated from OrthoCAD and cone-beam computed tomography imaging.

Introduction: The purpose of this research was to determine the accuracy of digital models generated by cone-beam computed tomography and compare it with that of OrthoCAD models (Cadent, Carlstadt, NJ) for orthodontic diagnosis and treatment planning by using surface area analysis.

Materials: Two sets of maxillary and mandibular digital models of 30 subjects were obtained. The models were made from impressions scanned with OrthoCAD and by conversion of related cone-beam computed tomography files.

Latex and non-latex orthodontic elastic force loss due to cyclic temperature.

Unlabelled: The purpose of this study was to compare the force loss of 1/4 inch (6.35mm) 3.5oz (99g) medium latex elastics from Ormco Corp.

Bond strength comparison of color change adhesives for orthodontic bonding.

This study investigated whether three different color change light-cured orthodontic bonding adhesives have comparable shear bond strengths to a conventional light-cured orthodontic bonding adhesive. The sample of 240 bovine incisors was divided into four groups of 60 each. Each group tested one of four orthodontic bonding adhesives: 3M Unitek Transbond PLUS, Ormco Gréngloo, Ormco Blúgloo, and 3M Unitek Transbond XT (control).

Bond strength comparison of color-change adhesives for orthodontic bonding using a self-etching primer.

Background: The purpose of this study was to compare the shear bond strengths of two color-change adhesives with a commonly used conventional light-cure adhesive while using a self-etching primer, and to compare any changes in shear bond strengths over time.

Methods: One hundred and eighty extracted bovine incisors were randomly divided into nine groups of 20 teeth each. The teeth were prepared with a self-etching primer (Transbond™ Plus) Metal lower incisor brackets were bonded directly to each tooth with two different color-change adhesives (TransbondPlus and Grēngloo™) and a control (Transbond XT).

Fluoride-releasing orthodontic adhesives and topical fluoride effect on enamel caries formation: an in vitro study.

Purpose: To examine in vitro orthodontic bonding sealants combined with daily fluoride (NaF) rinse on caries-like lesion depths.

Methods: Permanent molar teeth (n = 40) were randomly divided into four treatment groups: 1: Pro-Seal, 2: Light Bond, 3: Pro-Seal with NaF rinsing, and 4: Light Bond with NaF rinsing. Orthodontic sealant material was placed on buccal surfaces of each group and surrounded by acid-resistant varnish on the buccal and a control window on the lingual.

Digital models vs plaster models using alginate and alginate substitute materials.

Objective: To compare the dimensional stability of four impression materials over time and to compare OraMetrix digital models vs traditional plaster models.

Materials And Methods: Two traditional alginates (Identic and imprEssix) and two alginate substitutes (Alginot FS and Position PentaQuick) were used to take multiple impressions of a maxillary typodont. Fifteen impressions for each material were taken and poured with plaster at three time points: 72 hours, 120 hours, and 1 week.

A comparison of shear bond strengths on bleached and unbleached bovine enamel.

Introduction: This study investigated whether tooth whitening with two different bleaching systems affects the shear bond strength achieved using an orthodontic self-etching primer.

Methods: The sample of 210 bovine incisors was divided into three groups. One group served as the control, while the other two groups received either an over-the-counter "white strip" bleaching regimen (Opalescence TresWhite) or a "power bleaching" in-office regimen (Opalescence Boost).

Facial morphologies of an adult Egyptian population and an adult Houstonian white population compared using 3D imaging.

Objective: To compare the facial morphologies of an adult Egyptian population with those of a Houstonian white population.

Materials And Methods: The three-dimensional (3D) images were acquired via a commercially available stereophotogrammetric camera capture system. The 3dMDface System photographed 186 subjects from two population groups (Egypt and Houston).

Force-deflection comparison of superelastic nickel-titanium archwires.

This in vitro study compared the force-deflection behavior of 6 superelastic nickel-titanium orthodontic archwires (0.016 x 0.022 in) under controlled moment and temperature.