A prospective comparative study between differential moments and miniscrews in anchorage control.

The purpose of this study was to measure the efficacy of anchorage control between differential moments mechanics and temporary anchorage devices in a clinical trial. Forty-six patients requiring extraction of maxillary first premolars were allocated into 2 treatment groups. The differential moments group (G1) received a nickel titanium (NiTi) intrusion arch and a 150g NiTi closing coil spring for separate canine retraction, followed by a continuous mushroom loop archwire for the retraction of the incisors.

Microdamage of the cortical bone during mini-implant insertion with self-drilling and self-tapping techniques: a randomized controlled trial.

Introduction: The purpose of this research was to evaluate microdamage accumulation after mini-implant placement by self-drilling (without a pilot hole) and self-tapping (screwed into a pilot hole) insertion techniques. The null hypothesis was that the mini-implant insertion technique would have no influence on microcrack accumulation and propagation in the cortical bones of the maxillae and mandibles of adult hounds.

Methods: Mini-implants (n = 162; diameter, 1.

Evaluation of rotational control and forces generated during first-order archwire deflections: a comparison of self-ligating and conventional brackets.

The purpose of this study was to compare the activation and deactivation forces generated during first-order archwire deflections when different sizes and types of NiTi wires are paired with conventional and self-ligating brackets (SLBs) and to evaluate the rotational control between these same archwire and bracket combinations. Four maxillary premolar SLBs (Damon 3MX, SmartClip, Carriere, and In-Ovation R) and one conventional twin bracket (Victory) were paired with seven archwires [0.014, 0.

Alveolar ridge width and height changes after orthodontic space opening in patients congenitally missing maxillary lateral incisors.

The purpose of this study was to evaluate the dimensional changes of the alveolar ridge in patients with congenitally missing maxillary lateral incisors. The width and height of the alveolar ridge were compared before and after opening space for an endosseous dental implant between the central incisor and canine. Pre- and post-treatment dental stone models of 31 patients (8 males, 23 females; mean age 15.

Program ratings do not predict negative content in commercials on children's channels.

Objective: The aim of this study was to determine the presence of negative content in commercials airing on 3 children's channels (Disney Channel, Nickelodeon, and Cartoon Network).

Method: The 1681 commercials were coded with a reliable coding system and content comparisons were made.

Results: Although the majority of the commercials were coded as neutral, negative content was present in 13.