RDA Practice Exam – California RDA Test Prep & Free Practice Test (2025)

Question: 1 / 400

The majority of the spray produced by dental hand pieces consists of?

Water

The majority of the spray produced by dental handpieces primarily consists of water. This is because dental handpieces, especially high-speed ones, utilize a cooling system that sprays water to keep the instrument and the tooth being treated from overheating. The water helps clear debris and provides a clear view of the working area.

The use of water is critical for both the effectiveness of the procedure and patient comfort. While other substances, such as saliva and blood, may be present in the oral cavity during a dental procedure, they account for a much smaller proportion of the spray produced. Disinfectants are not typically part of the spray, as they may not be used in conjunction with high-speed handpieces in the same manner as water. Understanding the function of water in this context is essential for maintaining safety and effectiveness during dental procedures.

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Disinfectant

Saliva

Blood

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