An instrument used on the distal surface of a posterior tooth would have a/an:

The part of the working-end indicated by the arrow in the illustration shown below is called the:

Answer the question according to your dominant hand. What would be the operator’s chair position and the instrument selected to treat tooth #19 MF supragingval? Right Handed Operator 10-11:00 O’Clock, SG 11/12, SG 204S 9 O’Clock, 204S, SG 11/12, SG 7/8   10-11:00 O’Clock, SG 11/12, 204S, Universal 9 O’Clock, SG 11/12, 204S, Universal 10-11:00 O’Clock, 204S, Universal Left Handed Operator . 3:00 O’Clock, SG 11/12, SG 204S 1-2:00 O’Clock, 204S, SG 11/12, SG 7/8 3:00 O’Clock, SG 11/12, 204S, Universal      1-2:00 O’Clock, SG 11/12, 204S, Universal 3:00 O’Clock, 204S, Universal 3 O’Clock, SG 1/2, H6/7, Universal

The Mirror fulcrum is position on hard or soft tissue for tooth #12-DF around tooth number: (10/11 for a right-handed operator or 3:00 for a left-handed operator). The operator could select either the 13/14 curet or the 204S to remove the calculus on #12-DF supra.

The more posterior the tooth, the more angulated a shank must be. The mesial surface of a molar is less accessible than the distal surface.

The 17/23 explorer is used to detect carious lesions and defective margins of restorations. The 11/12 explorer is the preferred instrument of choice for calculus detection.

The modified pen grasp for the mirror helps the clinician provide stability and control. The clinician can use a rubber band and/or a ball to strengthen the muscles of the hand and to reduce operator fatigue.

The lower shank is closest to the handle.

The universal curet is used on all surfaces of the maxillary and mandibular teeth. The 11/12 curet is used on the mesial, buccal and distal surfaces.

Tactile sensitivity is defined as: