Newton’s third law of motion states that whenever a force is applied an equal and opposite force occurs in the opposite direction of applied force. Orthodontic tooth movement (OTM) being a biological phenomenon; sound knowledge of biomechanics is required. Sliding mechanics is a common approach in orthodontics to achieve tooth movement for closure and gaining of space.1,2 Sliding mechanics invo...

Introduction: The systematic search for increased efficiency in orthodontic treatment is shared by several areas of orthodontics. Performing alveolar corticotomies shortly before the application of orthodontic forces has been suggested as a method to enhance tooth movement and, consequently, orthodontic treatment as a whole. Objective: This article reviews the historical perspective of this the...

To evaluate force extension relaxation of different brands and diameters of latex elastics subjected to static tensile testing under an apparatus designed to simulate oral environments, sample sizes of 5 elastics from American Orthodontics (AO), Tp, and Morelli Orthodontics (Mo) of equivalent medium force, (3/16, 1/4, and 5/16 inch size) were tested. The forces were read after 1-, 3-, 6-, 12- a...

Dentists and orthodontists at one time or another have been exposed to the gnathological concept of occlusion. Certainly, a well-known and advocated precept of gnathology is that of “canine (mutually) protected occlusion (CPO).” The basic premise of CPO is that, on laterotrusive movements of the mandible, only the canines (possibly first premolars) contact and therefore protect the remaining de...

1Student of Masters in Orthodontics, Department of Odontopediatrics and Orthodontics, Dental School, Federal University of Rio de Janeiro (FO-UFRJ), Rio de Janeiro, RJ, Brazil. 2Master in Orthodontics, Department of Orthodontics, Dental School, Federal University of Rio de Janeiro (FO-UFRJ), Rio de Janeiro, RJ, Brazil. 3Master in Orthodontics, Department of Orthodontics, Dental School, Federal ...

With an increasing number of adult patients coming to the orthodontic clinic, the orthodontic professional is constantly looking for ways to accelerate tooth movement. Surgical intervention to affect the alveolar housing and tooth movement has been described in various forms for over a hundred years. However, it is the spirit of interdisciplinary collaboration in orthodontics has expanded the r...

* Student at the graduate program in Orthodontics (Master’s) UNICID. Faculty, Specialization Course in Orthodontics IOM/UNIG (RJ). Faculty, Specialization Course in Orthodontics ABO/ Niterói (RJ). Coordinador, Department of Orthodontics, General Policlinic, Rio de Janeiro. ** Doctorate Faculty, Craniofacial Rehabilitation Hospital / University of São Paulo (USP-Bauru). *** Associate Faculty, Or...

Objective: To compare the acceptability of Vacuum-formed Retainers and Hawley in two groups fixed orthodontics patients over three months.
 Study Design: Quasi-experimental study.
 Place Duration Study: Armed Forces Institute Dentistry, Rawalpindi Pakistan, from Jan 2019 to Mar 2020.
 Methodology: Eighty-two Patients treated with appliances department who met inclusion exclusion ...

The most dominant, dynamic, and influential figure in the specialty of orthodontics was Edward H. Angle (1855-1930). He is regarded as the “Father of Modern Orthodontics.” Through his leadership, orthodontics was separated from the other branches of dentistry (e.g., crown and bridge, prosthetics), and the result was the specialty of orthodontics. Angle was the first to limit his practice to ort...