The KPG index--a novel 3D classification system for maxillary canine impactions.

Introduction: Advancements in Cone Beam Computed Tomography (CBCT) have improved localization of impacted canines. The KPG index is the first 3-D classification system for classifying the position of canines based on their distance from the norm (1). The aim of this study was to determine if this index provides an estimate of the time necessary to treat an impacted canine using closed eruption.

Shear bond strengths of a selenium containing and a conventional light cured adhesive for orthodontic bonding.

Background: The objectives of this study were to evaluate the debonding strength and mode of failure of a selenium containing adhesive compared to an established orthodontic adhesive.

Materials And Methods: One hundred sixty bovine mandibular incisors were allocated to eight groups: steel and clear brackets were bonded with either selenium containing adhesive (Group 1: SeLect Defense) or a conventional light-cured adhesive (Group 2:Transbond XT) to measure debond strength and the adhesive remnant index was used to assess the location of bond failure. Data was evaluated using a three-way analysis of variance and Fisher's PLSD multiple comparisons test for mean debond strengths.

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.

Outcome study of computer-aided surgical simulation in the treatment of patients with craniomaxillofacial deformities.

Purpose: The purpose of this study was to determine whether the surgical outcomes achieved with computer-aided surgical simulation (CASS) are better than those achieved with traditional methods.

Materials And Methods: Twelve consecutive patients with craniomaxillofacial (CMF) deformities were enrolled. According to the CASS clinical protocol, a 3-dimensional computer composite skull model for each patient was generated and reoriented to the neutral head posture.

A new method to orient 3-dimensional computed tomography models to the natural head position: a clinical feasibility study.

Purpose: The purpose of this study was to evaluate the clinical feasibility of a new method to orient 3-dimensional (3D) computed tomography models to the natural head position (NHP). This method uses a small and inexpensive digital orientation device to record NHP in 3 dimensions. This device consists of a digital orientation sensor attached to the patient via a facebow and an individualized bite jig.

A comparison of shear bond strengths among different self-etching primers.

By the 1980's, bonding of orthodontic brackets had become the routine technique for attaching fixed appliances to teeth, replacing the need to fit and cement bands on each tooth (1). This modification in appliance attachment revolutionized orthodontics. Before, each tooth required a band.