Edge wise bonded brackets are used
**Core Concept**
Edge-wise bonded brackets are a type of orthodontic appliance used in fixed appliance therapy, particularly for correcting malocclusions and tooth alignment. They consist of a metal bracket bonded to the labial surface of the teeth, with a unique edge-wise design that allows for controlled and efficient tooth movement.
**Why the Correct Answer is Right**
The edge-wise bonded bracket works by utilizing a combination of forces to move the teeth in a specific direction. The bracket's edge-wise design enables it to apply a constant and gentle force to the tooth, facilitating controlled tooth movement. This type of bracket is particularly useful for correcting malocclusions, such as Class II and Class III bite problems, as well as for achieving precise tooth alignment.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because edge-wise bonded brackets are not typically used for orthodontic treatment of impacted teeth.
**Option B:** This option is incorrect because edge-wise bonded brackets are not a type of removable appliance, but rather a fixed appliance.
**Option C:** This option is incorrect because edge-wise bonded brackets are not used for correcting solely anterior tooth alignment, but rather for comprehensive malocclusion correction.
**Clinical Pearl / High-Yield Fact**
One key advantage of edge-wise bonded brackets is their ability to facilitate rapid and efficient tooth movement, making them a popular choice among orthodontists for correcting complex malocclusions.
**Correct Answer: D.**