California Registered Dental Assistant (RDA) Written Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare effectively for the California Registered Dental Assistant (RDA) Written Exam. Utilize our comprehensive quizzes and resources, featuring multiple-choice questions that enhance your understanding and readiness for the exam!

Practice this question and more.

A correctly fitting impression tray has sufficient depth to leave a minimum occlusal/incisal clearance of how much?

1.5mm
2.0mm
2.5mm
3.0mm

The correct answer is: 2.0mm

The minimum recommended occlusal/incisal clearance for a correctly fitting impression tray is 2.0mm. This is important for allowing enough space for impression material to surround and accurately capture the teeth and their details, while also avoiding any interference with occlusion or sharp impressions. Options A, C, and D are incorrect as they do not meet the recommended minimum clearance and may result in inaccurate impressions.