Dentsply Ash Probe SE No 54 The Dentsply Ash Probe SE No 54 is a single-ended explorer that plays a vital role in the diagnosis and examination of various dental conditions. One of the primary applications of the Dentsply Ash Probe SE No 54 is its use in the detection of caries. The explorer's fine, tapered tip allows for precise exploration of tooth surfaces, aiding in the identification of decayed areas or cavities. By gently navigating the enamel, dentin, and fissures, dental practitioners can accurately assess the extent of carious lesions and determine appropriate treatment options.