Detection of cavitated carious lesions in approximal tooth surfaces by ultrasonic caries detector

Shlomo Matalon*, Osnat Feuerstein, Shlomo Calderon, Avraham Mittleman, Israel Kaffe

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Objective: A new diagnostic method for detecting cavitated carious lesions in approximal surfaces with the aid of an ultrasonic caries detector (UCD) was tested for clinical use. The objective of this study was to evaluate the efficacy and clinical performance of the UCD system and to compare it with bite-wing radiography by using direct visual inspection during restoration preparation as a validation method. Study design: One hundred ninety-seven directly inspected approximal sites, 95 as cavitated carious lesions and 102 as intact sites, of adults 22 to 45 years of age were examined by UCD and radiography. Results: Ultrasonic caries detector sensitivity was 0.82 compared with 0.75 for bite-wing radiographs when the threshold was determined as radiolucency in inner enamel and dentin, and 0.49 when the threshold of radiolucency was in dentin. The specificity of UCD was 0.75 versus 0.9 for radiographs. Conclusions: The UCD exhibited a higher sensitivity than the radiographs but a lower specificity. This study presents a new diagnostic tool that can reduce patient exposure to ionizing radiation and improve caries detection.

Original languageEnglish
Pages (from-to)109-113
Number of pages5
JournalOral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics
Issue number1
StatePublished - Jan 2007


Dive into the research topics of 'Detection of cavitated carious lesions in approximal tooth surfaces by ultrasonic caries detector'. Together they form a unique fingerprint.

Cite this