HOSA Dental Terminology Practice

What is the function of a wooden wedge in dental procedures?

1. To mix alginate

2. To hold amalgam in order to load carrier

3. To hold matrix band in place and help prevent overhangs

4. To dry root canal

The correct answer is: To hold matrix band in place and help prevent overhangs

A wooden wedge is primarily used in dental procedures to hold a matrix band securely in place, which helps maintain the proper contour and shape of the restoration. During the placement of a dental filling, especially in posterior teeth, the matrix band is used to create a temporary wall that allows the dentist to restore the tooth to its original form. The wedge is then inserted to ensure that the matrix band is tight against the tooth structure, preventing any gaps that could lead to overfilling or overhangs. This function is crucial in achieving a well-contoured restoration, as it helps to provide a smooth transition between the filling material and the natural tooth surface. Additionally, a properly placed wedge minimizes the risk of leaving excess material that could adversely affect the patient’s bite and oral hygiene.