Archive for February, 2012
Effects of the Removable and Fixed Twin block on the C- Axis, G- Axis and CG angle – A growth vector for the dento-maxillary complex and the mandible
February 2012
The growth and development of the maxilla and the mandible is being considered as an important part in orthodontics. So, normal growth of the maxilla and the mandible is considered in this study with the help of the C- axis and G- axis. Also, an angle between the C-axis and G- axis (CG angle) is introduced after setting the normal standards for 300 patients, 150 males and 150 females in 3 growth patterns.
CO2 Lazer etching: An efficient alternative to conventional acid etching technique
February 2012
Laser etching has been tried as an alternative method to acid etching. An ultra pulse and a continuous pulse CO2 laser were used to carry out enamel etching in vitro. The shear bond strength of brackets bonded to extracted premolars after etching with conventional acid etching technique, laser etching and laser etching followed by conventional acid etching technique was evaluated.
Do not be tricked by your Disability Insurance Carrier – A Real Life Example
February 2012
Why does it matter whether you are considered Totally or Partially Disabled by your Disability Insurance Carrier? Most disability insurance policies provide that an individual with a partial disability will be paid only through the age of 65, while many individuals on Total Disability Benefits will be paid for the duration of their life. Moreover, partial disability benefits are based on the percentage of earned income lost. Thus, unlike Total Disability benefits, if the individual does not suffer a loss of earned income, benefits are not paid and in many cases, the contract ends after a few months.
Asymmetric extraction in a Class I malocclusion with bilateral agenesis of maxillary lateral incisors and mandibular anterior crowding
February 2012
Congenital absence of teeth (hypodontia) is the most common developmental dental anomaly in human. Certain adult patients with unique orthodontic problems contralateral tooth size differences, and maxillary/ mandibular tooth size disharmonies demand asymmetric extraction. This report describes management of class I malocclusion with congenital bilateral agenesis of maxillary lateral incisors and mandibular anterior crowding with asymmetric extraction in mandibular dental arch.
Osteoporosis – An Orthodontic Challenge
February 2012
Osteoporosis has been shown to affect periodontium and orthodontic tooth movement. There are also reports of Osteonecrosis related to oral bisphosphonate therapy during treatment for Osteoporosis. Hence an Orthodontist should be aware of the possible risks involved in osteoporotic patients undergoing Orthodontic treatment. Hence, certain recommendations are being suggested while doing Orthodontic treatment of an Osteoporotic patient.
Factors Affecting Success of Mini-implants – A Review
February 2012
Mini-implants have become a routine anchorage method in orthodontic practice given their high predictability and scientifically proven benefits. The small size of miniscrew implants allows them to be placed into bone between the teeth, thus expanding their clinical applications. With more patients treated with screw implants as anchorage, their stability is gathering attention. Despite their tremendous success in facilitating treatment outcomes, the implant failure rates are widely variable and could be as high as 10-30%.This article describes the various factors affecting success of mini-implants.
Asymmetric “T” Loop archwire for Deep Bite correction – A Case Report.
February 2012
A deep bite is a very common malocclusion in orthodontics. Whenever a deep bite is present it is due to the extrusion of anterior teeth. There are three options to correct it. Correction of the Curve of Spee, intrusion and retraction by segmental mechanics and deep bite correction by a continuous loop archwire. Retraction and intrusion of the six anterior teeth under the edgewise system is usually carried out in two distinct steps: canine retraction followed by incisor retraction. In the begg and Tip- Edge techniques, canine and incisors are retracted and intruded by enmasse.
Correction of Class II division 1 malocclusion using Functional Appliances
February 2012
Functional appliances, by altering the position of the teeth and supporting tissues, establishes a new and more optimal functional behavioural pattern which leads to adaptive changes in the bone form and helps the dentofacial complex achieve, its optimal genetic growth potential.
Bone sounding: a clinical tip for Microimplant placement
February 2012
After their introduction by Kanomi1 in 1997, microimplants have become a sensation enabling diverse clinical applications. Orthodontic miniscrews have been used to provide stable skeletal anchorage for both direct and indirect orthodontic traction. One of the challenges of microimplant placement is planning its correct positioning in the bone to achieve proper stability. The insertion technique should maximize the available bone volume while avoiding adjacent anatomical structures such as dental roots, nasomaxillary cavities, and neurovascular tissues.
