Shetty Suhani Sudhakar

Abstract

Class III malocclusion is associated with a sagittal malrelationship of the maxilla and the mandible, characterized by a deficient maxilla, retrognathic mandible, or a combination of both. The early treatment of Class III malocclusions provides facial balance, modifies the maxillofacial growth and development, and prevents future surgical treatment by increasing the stability. Many treatment approaches can be found in the literature regarding orthopedic and orthodontic treatment of Class III malocclusion, including intra? and extra?oral appliances. The major problem with extraoral anchorage has been of patient compliance due to its physical appearance. The case report presents an intraoral modified tandem appliance for maxillary protraction that has been used clinically to achieve successful results without relying much on patient co?operation.   Keywords: Orthopaedic, Proclined, Anteriors

View Article

Abstract

Extraction therapies are commonly done in patients with protrusion and/or crowding which demands a thorough understanding of biomechanics. Two basic types of space closing mechanics are friction/sliding and frictionless/loop mechanics. In the former, the wire and position of the bracket are important factors in tooth movement but the simplicity of friction mechanics is offset by the binding between bracket and archwire and may be associated with undesirable side effects such as uncontrolled tipping and deep bite. In frictionless mechanics, specially designed springs are used which provides the required moment to force ratio (M/F ratio) in three dimensions and they are more predictable and versatile. An electronic literature search was conducted via google scholar, PubMed, and dental associations’ of different countries’ website using the key word “Loops” and “Frictionless mechanics.Different configuration of loops have been used in orthodontic treatment and a comprehensive review of types of loops commonly used in retraction has been highlighted in this article. Key Messages: Provide appropriate messages of about 35-50 words to be printed in centre box: In frictionless mechanics, specially designed springs are used which provides the required moment to force ratio in three dimensions and they are more predictable and versatile. Different configuration of loops have been used and a comprehensive review of types of loops commonly used in retraction has been highlighted in this article.   Keywords: Frictionless mechanics, Loops, T loop, Space closure.

View Article