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DANB's OA (OA) Practice Tests & Test Prep by Exam Edge - Review


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DANB's Orthodontic Assisting - Reviews


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Based on 100 reviews

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"I found the practice tests extremely helpful. I passed the DANB RHS exam and felt that the subject matter was thoroughly covered by your practice tests. The viewing of films and answering questions on them was especially helpful. Thank you very much for the assistance in preparing for the DANB RHS exam."

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Exam Edge is an industry leader in online test prep. We work with institutional partners to offer a wide array of practice tests that will help you prepare for your big exam. No matter how niche your field of interest might be, we are here to help you prepare for test day.



See why our users from 154 countries love us for their exam prep! Including 100 reviews for the DANB's OA exam.

Exam Edge is an industry leader in online test prep. We work with institutional partners to offer a wide array of practice tests that will help you prepare for your big exam. No matter how niche your field of interest might be, we're here to help you prepare for test day.

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DANB's Orthodontic Assisting - Test Reviews Sample Questions

The proper way to apply cement to the band is to ensure:





Correct Answer:
the cement is even and coats the entire surface of the band.


when applying cement to a band, it is crucial to ensure that the cement is evenly distributed and completely covers the entire surface of the band. this method is the correct technique because it guarantees that the band will adhere properly to the surface it is meant to bond with, thereby improving the strength and durability of the bond.

an even coating of cement helps prevent the formation of gaps or voids between the band and the adhering surface. gaps can weaken the bond and may lead to failure of the attachment under stress or over time. therefore, it is essential to apply the cement uniformly across every part of the band's surface.

moreover, covering the entire surface of the band with cement ensures that there are no uncoated areas that could compromise the integrity of the bond. uncoated areas might not only weaken the bond but could also be susceptible to environmental factors such as moisture and temperature changes, which could further degrade the bond.

in summary, the proper way to apply cement to the band involves ensuring that the cement is even and coats the entire surface of the band. this technique helps in achieving a robust and durable bond that is free from gaps or voids, ultimately enhancing the performance and longevity of the bonded structure.

With a protraction facemask, what caution must be heeded with the elastics?





Correct Answer:
ensure they do not irritate the corners of the patient's mouth.


when utilizing a protraction facemask in orthodontic treatment, particularly for correcting underbites and guiding facial growth, special attention must be given to the placement and tension of the elastics used with the device. these elastics are crucial for exerting the necessary forward and downward forces on the maxilla (upper jaw) but must be monitored closely for potential adverse effects.

one of the primary concerns with the use of elastics on a protraction facemask is the risk of causing irritation at the corners of the patient's mouth. this irritation typically stems from either excessive tension or improper placement of the elastics. when elastics are too tight or incorrectly positioned, they can create constant rubbing or pressure points at the corners of the mouth, leading to discomfort, and in some cases, sores or ulcers.

to prevent such irritation, it is essential to ensure that the elastics are adjusted to the right tension and correctly aligned so they do not pull excessively at the corners of the mouth. regular monitoring and adjustments by the orthodontist are necessary to maintain the correct positioning and tension as the treatment progresses. furthermore, patients should be instructed on how to check the elastics and report any signs of discomfort or irritation immediately.

in addition to placement and tension, the material of the elastics can also contribute to irritation. using hypoallergenic or softer materials can reduce the risk of irritation. some clinicians might also recommend applying a barrier or protective ointment at the corners of the mouth as a preventative measure against irritation.

overall, while elastics are a critical component of treatment with a protraction facemask, their use must be carefully managed to avoid complications such as irritation to the corners of the mouth. through vigilant application, adjustment, and patient education, these potential issues can be effectively mitigated, ensuring a more comfortable treatment experience for the patient.