TY  - JOUR
AU  - Ruetters, Maurice
AU  - Mertens, Christian
AU  - Gehrig, Holger
AU  - Sen, Sinan
AU  - Kim, Ti-Sun
AU  - Schlemmer, Hans-Peter
AU  - Schoenberg, Stefan
AU  - Froelich, Matthias
AU  - Kachelrieß, Marc
AU  - Sawall, Stefan
TI  - Dental photon-counting computed tomography for the assessment of Peri-Implant structures.
JO  - International journal of implant dentistry
VL  - 11
IS  - 1
SN  - 2198-4034
CY  - Heidelberg
PB  - Springer
M1  - DKFZ-2025-01659
SP  - 51
PY  - 2025
N1  - #LA:E025#
AB  - To assess the diagnostic performance of photon-counting computed tomography (PCCT) in the imaging of peri-implant bone structures and to compare it quantitatively and qualitatively to cone-beam computed tomography (CBCT).Thirty titanium implants were placed in ten porcine mandibles. CBCT and PCCT scans were acquired and compared quantitatively regarding image noise and CT-values. Additionally bone thickness was compared to a gold standard at 60 standardized locations by one calibrated investigator in both modalities. Measurement accuracy was assessed by Bland-Altman analysis. Two experienced raters performed qualitative assessments of anatomic structures around the implant using a 5-point visibility scale. These included the bone-implant interface around the implant surface, the bone at the implant shoulder as well as the oral and vestibular bone lamella. Inter-rater agreement was assessed using ICC.Across all evaluated implants, CT-values in a soft-tissue region of interest adjacent to the implant increased by 11.7 ± 3.9
KW  - Animals
KW  - Swine
KW  - Cone-Beam Computed Tomography: methods
KW  - Dental Implants
KW  - Mandible: diagnostic imaging
KW  - Mandible: surgery
KW  - Tomography, X-Ray Computed: methods
KW  - Photons
KW  - 3D dental imaging (Other)
KW  - CBCT (Other)
KW  - Image quality (Other)
KW  - Implant diagnostics (Other)
KW  - Metal artifacts (Other)
KW  - Peri-implant bone (Other)
KW  - Photon-counting CT (Other)
KW  - Dental Implants (NLM Chemicals)
LB  - PUB:(DE-HGF)16
C6  - pmid:40782315
DO  - DOI:10.1186/s40729-025-00640-8
UR  - https://inrepo02.dkfz.de/record/303446
ER  -