National Board Dental Hygiene Examination (NBDHE) Dental Hygienist Practice Test

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Get ready for the National Board Dental Hygiene Examination (NBDHE) with our comprehensive quizzes. Study using multiple-choice questions that come with hints and explanations. Prepare effectively for your dental hygienist exam!

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What is the expected outcome of polishing teeth for excessive durations with pumice?

Increase in enamel hardness
Deterioration of gum health
Reduction in plaque accumulation
Increase in aesthetic appearance

The correct answer is: Deterioration of gum health

Polishing teeth for excessive durations with pumice can lead to deterioration of gum health. Pumice is an abrasive material designed to remove extrinsic stains from teeth, but if used too aggressively or for extended periods, it can damage not only the enamel but also the soft tissues in the mouth, such as the gums. This can result in gingival irritation, recession, or even injury to the epithelial lining of the gingival sulcus. The other options, while potentially relevant in different contexts, do not accurately reflect the consequences of excessive polishing. For instance, while polishing can improve aesthetic appearance, if done excessively, the risks to gum health overshadow any cosmetic benefits. Similarly, the idea that polishing would lead to an increase in enamel hardness is misleading, as abrasive polishing can actually wear down enamel over time. Finally, while polishing may temporarily reduce the appearance of plaque, excessive or improper use does not contribute to long-term plaque control and may instead compromise the health of supporting structures in the mouth.