Dental Explorer, DE, 11-12. Stainless Steel Handle. The explorer provides the tactile information to the clinician’s fingers and is used to locate calculus deposits, tooth surface irregularities, defective margins on restorations, decalcified areas and carious lesions. For the quality assurance, this explorer is made with US materials. This Explorer is ideal for Posterior calculus detection in deep pockets on proximal surfaces. Product Code: EXD11-12 or EXD 11-12