INBDE (Integrated National Board Dental Examination) Practice Exam

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Prepare for the Integrated National Board Dental Examination with interactive quizzes and comprehensive testing materials. Boost your confidence and performance on the exam by utilizing tailored resources designed for dental professionals.

Practice this question and more.

In the gingival third of primary teeth, enamel rods slope __________.

Occlusally
Cervically
Horizontally
Vertically

The correct answer is: Occlusally

In the gingival third of primary teeth, enamel rods slope occlusally due to the curvature of the tooth's surface. This allows for better resistance to wear and tear, as well as improved structural strength. Option B, cervically, is incorrect because enamel rods do not slope in this direction. Option C, horizontally, is also incorrect because this would result in a weaker structure. Option D, vertically, is incorrect because this would not provide adequate protection for the tooth's surface.