Exploratory investigation of quantitative percussion diagnostics in endodontic health and pathology
Year: 2025
Type: article
Abstract: Background Quantitative percussion diagnostics (QPD) have been able to detect coronal microgap defects (MGDs) at early stages. Specifically, QPD identified early MGDs associated with restorative luting failures, coronal and radicular root fractures, and implants. Another potential MGD for teeth is a defective periodontal ligament (PDL). If there is early attachment apparatus disease, there is a high probability that the PDL is damaged. This study investigated the QPD response of a tooth with a lesion of endodontic origin (LEO) to determine if the damaged PDL can be detected. Methods An in vivo tooth with a periapical LEO was clinically evaluated by using radiographs, cone-beam computed tomographic images, and QPD. Finite element analysis (FEA) was used to accurately model this same tooth to simulate the apical LEO in the model. Reduced moduli in tissue components were used to simulate the effect of the LEO. The clinical QPD result was validated using FEA for an endodontically failing mandibular first molar with an apical LEO. Results The in vitro FEA results show consistent features with the corresponding clinical QPD results and validate that the model closely replicates the tooth and the LEO observed with radiographic and cone-beam computed tomographic images. It was also shown that these FEA results and clinical QPD results yield nearly the same normal fit error values. Conclusions The agreement between this in vitro FEA model and the in vivo clinical QPD results for a mandibular molar with an apical LEO indicates that QPD can detect a damaged PDL.
Source: JADA Foundational Science
Language: English
Subfield: Oral Surgery
Field: Dentistry
Domain: Health Sciences
Open Access status: gold
Estimated APC paid: $2,500
Award: G5756546703
OpenAlex ID: W4417488359