Abstract
BackgroundEarly detection of marginal bone loss is vital for treatment planning and prognosis of teeth and implant. This study was conducted to assess diagnostic accuracy of CBCT compared to intra-oral (IO) radiography for detection, classification, and measurement of peri-implant bone defects in an animal model.MethodsFifty-four mandible blocks with implants were harvested from nine male health adult beagle dogs with acquisition of IO, CBCT and micro-CT images from all samples. Peri-implant bone defects from 16 samples were diagnosed using micro-CT and classified into 3 defect categories: dehiscence (n = 5), infrabony defect (n = 3) and crater-like defect (n = 8). Following training and calibration of the observers, they asked to detect location (mesial, distal, buccal, lingual) and shape of the defect (dehiscence, horizontal defect, vertical defect, carter-like defect) utilizing both IO and CBCT images. Both observers assessed defect depth and width on IO, CBCT and micro-CT images at each side of peri-implant bone defect via CT-analyzer software. Data were analyzed using SPSS software and a p value of < 0.05 was considered as statistically significant.ResultsOverall, there was a high diagnostic accuracy for detection of bone defects with CBCT images (sensitivity: 100%/100%), while IO images showed a reduction in accuracy (sensitivity: 69%/63%). Similarly, diagnostic accuracy for defect classification was significantly higher for CBCT, whereas IO images were unable to correctly identify vestibular dehiscence, with incorrect assessment of half of the infrabony defects. For accuracy of measuring defect depth and width, a higher correlation was observed between CBCT and gold standard micro-CT (r = 0.91, 95% CI 0.86–0.94), whereas a lower correlation was seen for IO images (r = 0.82, 95% CI 0.67–0.91).ConclusionsThe diagnostic accuracy and reliability of CBCT was found to be superior to IO imaging for the detection, classification, and measurement of peri-implant bone defects. The application of CBCT adds substantial information related to the peri-implant bone defect diagnosis and decision-making which cannot be achieved with conventional IO imaging.
Highlights
Detection of marginal bone loss is vital for treatment planning and prognosis of teeth and implant
The reliability of cone beam computed tomography (CBCT) images was considerably high when compared with the micro-CT for the detection and classification of the bone defect (ICC: 0.93 and 0.96, 95% CI 0.9–0.95 & 0.95–0.98)
The present study was conducted to assess the diagnostic accuracy of CBCT and IO imaging for the detection, classification, and measurement of peri-implant bone defects
Summary
Detection of marginal bone loss is vital for treatment planning and prognosis of teeth and implant. Two-dimensional (2D) imaging modalities such as intraoral (IO) and panoramic radiography are the most commonly utilized radiographic methods for defect detection in a clinical practice based on their low radiation exposure and cost-effectiveness [9,10,11,12,13]. They have certain limitations such as, 2D representation of three-dimensional (3D) anatomical structures, geometric distortion, lower spatial resolution, and image magnification which underestimates the defect [14,15,16,17]. Only a few studies are available assessing the superiority of CBCT over 2D imaging for the assessment of peri-implant bone defects [23, 24]
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
