W-beam systems utilize end-terminal anchorages to develop tension upstream and downstream of an impact event. However, the capacities of the anchorage components under impact loading are not well known. One such W-beam end anchorage system, the Midwest guardrail system (MGS) trailing-end anchorage, was evaluated using three dynamic component tests _ a soil foundation tube pull test, a breakaway...

A treatment objective of upper molar distalisation may often be required during the correction of a malocclusion. Distalisation is not only indicated for the management of Class II patients, but also for Class III surgery patients who require decompensation in the upper arch if upper incisor retrusion is needed. Unfortunately, most conventional intra-oral devices for non-compliance maxillary mo...

INTRODUCTION The goal of this retrospective cephalometric study was to compare orthodontic outcomes in patients with maxillary dentoalveolar protrusion malocclusion treated with extraoral headgear or mini-implants for maximum anchorage. MATERIALS Forty-seven subjects with Angle Class II malocclusion or Class I bimaxillary dentoalveolar protrusion were treated by retracting the maxillary dento...

BACKGROUND To evaluate the effectiveness of two minimally invasive surgical procedures in the acceleration of canine retraction: piezocision and laser-assisted flapless corticotomy (LAFC). METHODS Trial design: A single-centre randomized controlled trial with a compound design (two-arm parallel-group design and a split-mouth design for each arm). PARTICIPANTS 36 Class II division I patients...

The aim of this study was to review the literature and evaluate failure rates factors that affect stability success temporary anchorage devices (TADs) used as orthodontic anchorage. Data collected from electronic databases: MEDLINE database Google Scholar. Four combinations term were keywords: “micro-implant”, “mini-implant”, “mini-screw”, “orthodontics”. following selection criteria select app...

One of the most important phases of oral health is the form and function of the oral mechanism. Recently, pediatric dentists are concerned with the obvious esthetic disabilities and the pathologic implications of the malposed teeth. Interceptive and functional orthodontic treatment is playing a major role in these discrepancies. Anchorage is an important consideration in orthodontics, particula...

this paper presented a multimodal discourse analysis of some visual images in the political rally discourse of 2011 electioneering campaigns in southwestern nigeria. the data comprised purposively selected political visual artefacts from political rallies across the six southwestern states in nigeria (osun, oyo, ondo, ekiti, ogun, and lagos). the data were analyzed using halliday’s (1985) syste...