TY - GEN
T1 - Influence of metal artifacts on the creation of individual 3D cranio-mandibular Models
AU - Kasama, Shintaro
AU - Ogawa, Takumi
AU - Ikawa, Tomoko
AU - Shigeta, Yuko
AU - Hirai, Shinya
AU - Fukushima, Shunji
AU - Hattori, Asaki
AU - Suzuki, Naoki
PY - 2011
Y1 - 2011
N2 - In our clinic, the four-dimensional analysis of mandibular movement has mainly been used to diagnose jaw function disorders. In present, we are considering its application for patients with occlusal issues. Consequently, an improvement in system accuracy is required. However, metal artifacts cause distortions in the 3D-cranio-mandibular model construction process, which leads to accuracy concerns. The purpose of this present study was to grasp the accuracy differences caused by the oral metal restorations in reconstructed 3D-craniomandibular models from CT data, and scanned dentition models. The accuracy of the reconstruction was confirmed from comparing the occlusal contacts in VR space and real space. The VR contact areas in the dry skulls without and moderate restoration showed a close similarity to real occlusal contacts. However, the VR contact areas in the dry skull with numerous restorations was not similar to the real contacts. From these results, it is considered that metal artifacts decrease the accuracy of model reconstruction.
AB - In our clinic, the four-dimensional analysis of mandibular movement has mainly been used to diagnose jaw function disorders. In present, we are considering its application for patients with occlusal issues. Consequently, an improvement in system accuracy is required. However, metal artifacts cause distortions in the 3D-cranio-mandibular model construction process, which leads to accuracy concerns. The purpose of this present study was to grasp the accuracy differences caused by the oral metal restorations in reconstructed 3D-craniomandibular models from CT data, and scanned dentition models. The accuracy of the reconstruction was confirmed from comparing the occlusal contacts in VR space and real space. The VR contact areas in the dry skulls without and moderate restoration showed a close similarity to real occlusal contacts. However, the VR contact areas in the dry skull with numerous restorations was not similar to the real contacts. From these results, it is considered that metal artifacts decrease the accuracy of model reconstruction.
KW - 3D-cranio-mandibular model
KW - occlusal contacts
UR - http://www.scopus.com/inward/record.url?scp=79953049056&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79953049056&partnerID=8YFLogxK
U2 - 10.3233/978-1-60750-706-2-261
DO - 10.3233/978-1-60750-706-2-261
M3 - Conference contribution
C2 - 21335800
AN - SCOPUS:79953049056
SN - 9781607507055
T3 - Studies in Health Technology and Informatics
SP - 261
EP - 263
BT - Medicine Meets Virtual Reality 18
PB - IOS Press
ER -