What is the purpose of dental impressions?

• A. To diagnose oral diseases
• B. To create a replica of a patient's teeth and oral structures
• C. To perform preventive care
• D. To clean dental instruments

Answer: (B)

Dental impressions are primarily used to create a precise replica of a patient's teeth and oral structures. This process involves taking a mold of the dental arch, which captures the fine details of the contours and positions of the teeth and gums. The resulting impressions are essential for various dental treatments and procedures, such as fabricating crowns, bridges, dentures, and orthodontic appliances.

By obtaining an accurate representation of the oral cavity, dental professionals can ensure that any restorations or appliances fit correctly and function effectively within the patient’s mouth. This is crucial for both the aesthetic appearance and the functionality of dental work.

The other options relate to different aspects of dental care but do not align with the specific intent of creating a replica of oral structures. For instance, diagnosing oral diseases involves clinical examinations and imaging rather than impressions. Preventive care focuses on maintaining oral health through cleanings and education, and cleaning dental instruments is a separate operational task within the dental practice.