- For diagnosing calculus and caries and exploring of pockets, restorations and furcations.
- For probing distal surfaces
- Centered tip (17 C)
- Elongated lower shank and “back-action” blade (17C)
- Also for probing occlusal surface grooves (23)
- For detecting subgingival calculus (23)
Most explorers and periodontal probes are available also in single-ended designs