Coronal Polish Certification Practice Test

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Prepare for the Coronal Polish Certification Exam. Study using flashcards and multiple-choice questions, each with hints and detailed explanations. Ensure success on your test by practicing effectively!

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Which polishing paste is recommended for use on filled hybrid composites and resin restorations?

Silicon carbide
Aluminum oxide
Calcium carbonate
Zinc oxide

The correct answer is: Aluminum oxide

The recommended polishing paste for use on filled hybrid composites and resin restorations is aluminum oxide. This material is favored because it has a relatively fine particle size that allows for effective polishing without causing excessive abrasion to the dental materials. Aluminum oxide is specifically designed to achieve a smooth and shiny finish on composite surfaces, enhancing the aesthetic appearance of the restoration while minimizing the risk of damaging the resin matrix. Aluminum oxide is also effective in removing minor surface imperfections and gives a high lustrous finish, which is desirable in aesthetic dentistry. Unlike silicon carbide, which is more abrasive and generally used for grinding and shaping rather than polishing, aluminum oxide provides the right balance of polishing ability while protecting the underlying material. Other materials like calcium carbonate and zinc oxide, although sometimes used in other contexts, do not have the same efficacy for polishing hybrid composites and can leave a less ideal surface finish.