INBDE (Integrated National Board Dental Examination) Practice Exam

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Study for the Integrated National Board Dental Examination with engaging quizzes and detailed multiple-choice questions. Each question comes with hints and explanations to ensure you grasp essential concepts. Prepare effectively for your dental career!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

How much into dentin should the outline form be?

0.1mm
0.2mm
0.3mm
0.4mm

The correct answer is: 0.2mm

The outline form refers to the initial preparation of a tooth for a crown or restoration. The depth of the outline form should ideally be around 0.2mm into the dentin. This level of depth allows for retention and resistance form of the final restoration while also preserving enough healthy tooth structure for long-term success. Option A is too shallow and may not provide enough retention, while options C and D are deeper than necessary and can result in unnecessary removal of tooth structure.