# 2 Explorer Double-ended easy-grip stainless steel handle. US Elite Dental Explorer #2 DE with Standard Solid Handle. Explorer 2 Double Ended. FUNCTION: To examine tooth surfaces for caries, calculus, or defects using the sense of touch (tactile). FEATURES: Thin, sharp working end comes in different designs Common styles are the #1, 2 (pigtail), 11/12, 17, and 23 (Shepard's hook) May be single- or double-ended (different design on each side). TRAY SET-UP: Exam and Basic Set-up, a component of most procedural tray set-ups. CLINICAL APPLICATION: Also used to: Check the fit of margins of restorations Evaluate root surfaces and furcation area in the periodontal exam (11/12) Remove excess material from restoration or preparation & Remove excess cement.