Analyzing Equivalency and Accuracy of Three Different Periodontal Probes in Measuring Pocket Depth – An In-Vitro Study

Abstract

Background: The periodontal probe is an essential instrument designed for the purposes of recording clinical periodontal data. As such, accurate periodontal measurements remain a critical factor in providing individualized care to patients. The purpose of this study is to determine the compatibility and accuracy of three different periodontal probes on a periodontal typodont model. Materials and Methods: Forty-one D3, D4, and DH students were randomly selected to perform a 6-point pocket depth measurement on the mandibular teeth of a previously verified periodontal typodont mounted on a manikin. Each measurement site was outlined with black marking on the tooth to facilitate consistent reproducibility in periodontal probe placement and angulation. Results: Probing depth measurements between the UNC-15, PCP-126, and Disposable i-PAK® periodontal probe rendered an excellent equivalency (ICC = 0.960) with narrow CI (0.947, 0.971). There is significant difference among these three instruments in their capability to replicate the manufacturers suggested probing depth on the periodontal typodont (p < .001). The UNC-15 probe was the most accurate, followed by PCP-126, with the Disposable i-PAK® being the least accurate. Conclusions: This study demonstrated that the UNC-15, PCP-126, and Disposable i-PAK® yielded equivalent results when measuring probing depths on a periodontal typodont. Furthermore, the UNC-15 was most accurate in its ability to replicate the manufacturers suggested pocket depth on the periodontal typodont. Practical Implications: This study emphasizes the importance in consistency of periodontal probe types in the dental practice.