Question

1. All of the following are etiologies of a broken instrument tip except:

a) application of excessive force of instrument b) defective production of instrument c) excessive sharpening of instrument d) appropriate instrument adaption

2. The first step in the treatment of a broken instrument tip is to:

a) suction the area b) isolate the area c) rinse the area d) use compressed air on the area

3. If the tip cannot be located after close inspection the clinician should:

a) refer the patient to an oral surgeon b) refer the patient to a periodontist c) take a periapical radiograph of the area d) none of the above

4. When attempting to locate a broken instrument tip in the sulcus the clinician should use a/an

a) horizontal strokes b) vertical stokes c) ultrasonic scaler d) hemostat

Answer 1

ANSWER

1. D.Appropriate instrument adaption is not a reason for broken instrument.

2. B.First line treatment of broken instrument tip include obtain coronal access

      by isolate the area.

3.C. If the tip cannot be located by close inspection the clinician refer the patient to

       an oral surgeon.

4.A. Clinician use Horizondal or sideways stroke to locate a broken instrument tip in

      the sulcus.