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



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DANB's Isolation - Reviews


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Based on 200 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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See why our users from 154 countries love us for their exam prep! Including 200 reviews for the DANB's IS 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 Isolation - Test Reviews Sample Questions

Which of the following is TRUE concerning the isolation of teeth for in-office tooth whitening? 

Correct Answer:
the isolation of choice is a dental dam. 
to understand the appropriate isolation method for in-office tooth whitening, it's essential to recognize the risks associated with the whitening agents used, typically hydrogen peroxide or carbamide peroxide. these substances can irritate or damage soft tissues such as the gums (gingivae) if they come into contact. proper isolation is crucial to protect these tissues during the whitening procedure.

the statement "the isolation of choice is a dental dam" is indeed true and represents the best practice for several reasons. a dental dam is a thin sheet of latex or nitrile that is placed over the teeth and secured, typically isolating the teeth that are being treated from the rest of the mouth. this barrier not only keeps the whitening agent on the teeth, where it is intended, but also significantly reduces the risk of the agent coming into contact with the soft tissues of the mouth, including the gums and the inner cheeks.

using a dental dam for isolation during tooth whitening provides several advantages: 1. **protection of soft tissues**: the primary role of the dental dam is to act as a physical barrier, preventing the whitening chemicals from reaching and potentially harming the gingival tissue. 2. **enhanced effectiveness**: by isolating the teeth, the whitening agent can be applied more evenly and maintained in contact with the teeth for the required duration without being diluted or washed away by saliva. 3. **improved patient comfort**: minimizing the contact of the whitening agent with other areas of the mouth reduces the risk of chemical burns or irritation, thereby enhancing patient comfort.

other methods such as high-volume evacuator (hve), cotton rolls, saliva ejectors, or dry aids are sometimes used but are generally considered supplementary. these tools help in managing saliva and maintaining a dry field but do not provide the same level of protection against tissue exposure to whitening agents as a dental dam.

in summary, for in-office tooth whitening, the use of a dental dam is the preferred and recommended method for isolating the teeth. this practice not only ensures the safety and comfort of the patient but also enhances the effectiveness of the whitening procedure. other isolation aids may be used in conjunction with a dental dam, but they should not replace the dam as the primary method of isolation.