Dental OSCE (Objective Structured Clinical Examination) Practice Exam

What dental tool is primarily used for the removal of calculus above the gum line?

1. Scaler

2. Curette

3. Excavator

4. File

The correct answer is: Scaler

The scaler is specifically designed for the removal of calculus, particularly supragingival calculus, which is located above the gum line. Scalers typically have sharp, pointed ends and are effective in scraping away deposits from the tooth surfaces, effectively cleaning areas where plaque and tartar have accumulated. Their design makes them ideal for accessing flat surfaces and interproximal areas of teeth that are easily reached above the gum line. In contrast, curettes are primarily used for subgingival scaling and root planing, targeting calculus and plaque below the gum line. Excavators are designed for removing decay and debris from within cavities, while files are used mainly in endodontics for shaping and cleaning the root canal system. Each of these tools serves distinct purposes, making the scaler the appropriate choice for addressing supragingival calculus specifically.