OBJECTIVES Investigate the expression and activity of inflammatory markers in response to different magnitudes of orthodontic forces and correlate this response with other molecular and cellular events during orthodontic tooth movement. SETTING AND SAMPLE POPULATION CTOR Laboratory; 245 Sprague Dawley male rats. METHODS AND MATERIALS Control, sham, and 5 different experimental groups receiv...

AIM To evaluate the correlation between pain and tissue damage in response to orthodontic tooth movement (OTM), such as hyalinization and external apical root resorption (EARR). MATERIALS AND METHODS The literature review was used as a methodological strategy, following the knowledge development process - constructivist (ProKnow-C). Study axes were defined and keywords that best represented e...

Two approaches are currently used to correct overerupted/extruded posterior teeth, the “prosthodontic” and the “orthodontic” one. This report presents a novel orthodontic approach for selective molar intrusion. In two females (26 and 20 years), a modified transpalatal arch (TPA, equivalent to a couple with a 30 g net force) was used to move the tooth bodily. A 50 g force was applied to the over...

OBJECTIVES To describe the microscopic pulpal reactions resulting from orthodontically induced tooth movement associated with low-level laser therapy (LLLT) in rats. MATERIALS AND METHODS Forty-five young male Wistar rats were randomly assigned to three groups. In group I (n = 20), the maxillary right first molars were submitted to orthodontic movement with placement of a coil spring. In grou...

In orthodontic therapy elastics and elastomeric chains are commonly used as an active component. These synthetic elastic materials not supposed to be ideal, they sensitive prolonged exposure saliva, water, enzymes, temperature variations external factors. The main disadvantage of auxiliaries is their inability sustain the delivered force for extended period time. objective this review determine...

In this research we developed an orthodontic simulator for analysis of orthodontic forces distribution in the case of the continuous arch technique. In order to take into account vertical force, besides horizontal force and occlusogingival moment on instrumented artificial tooth, tooth root was designed as a ring load cell. Fixing each artificial tooth onto combined mechanical stages enabled va...

The aim of this study is to present a new upper molar distalization appliance called Cise distalizer designed as intraoral device supported with orthodontic mini screw for upper permanent molar distalization. The new appliance consists of eight main components. In order to understand the optimum force level, the appliance under static loading is tested by using strain gage measurement technique...