TY - JOUR
T1 - 3D full-field strain in bone-implant and bone-tooth constructs and their morphological influential factors
AU - Zhou, Yuxiao
AU - Gong, Chujie
AU - Hossaini-Zadeh, Mehran
AU - Du, Jing
N1 - Funding Information:
This work was supported by the National Center for Advancing Translational Sciences, National Institutes of Health [Grant UL1TR002014 , 2017]. The content is solely the responsibility of the authors and does not necessarily represent the official views of the NIH. The support was made available through Penn State Clinical and Translational Science Institute (CTSI) . The authors are grateful to Dr. Timothy Ryan and Mr. Timothy Stecko at the Center for Quantitative Imaging (CQI) at Penn State University for technical support on micro-CT scans. The authors would also like to extend the gratitude to Dr. Mosuk Chow and Dr. Prabhani Kuruppumullage Don for the consultation statistical analysis, and Mr. Richard Prevost and Mr. Aditya Gupta from LaVision Inc. for consultation regarding DaVis software.
Funding Information:
This work was supported by the National Center for Advancing Translational Sciences, National Institutes of Health [Grant UL1TR002014, 2017]. The content is solely the responsibility of the authors and does not necessarily represent the official views of the NIH. The support was made available through Penn State Clinical and Translational Science Institute (CTSI). The authors are grateful to Dr. Timothy Ryan and Mr. Timothy Stecko at the Center for Quantitative Imaging (CQI) at Penn State University for technical support on micro-CT scans. The authors would also like to extend the gratitude to Dr. Mosuk Chow and Dr. Prabhani Kuruppumullage Don for the consultation statistical analysis, and Mr. Richard Prevost and Mr. Aditya Gupta from LaVision Inc. for consultation regarding DaVis software.
Publisher Copyright:
© 2020 Elsevier Ltd
PY - 2020/10
Y1 - 2020/10
N2 - The biomechanics of bone-tooth and bone-implant interfaces affects the outcomes of several dental treatments, such as implant placement, because bone, tooth and periodontal ligament are living tissues that adapt to the changes in mechanical stimulations. In this work, mechanical testing coupled with micro-CT was performed on human cadaveric mandibular bone-tooth and bone-implant constructs. Using digital volume correlation, the 3D full-field strain in bone under implant loading and tooth loading was measured. Concurrently, bone morphology and bone-implant and bone-tooth contact were also measured through the analysis of micro-CT images. The results show that strain in bone increased when a tooth was replaced by a dental implant. Strain concentration was observed in peri-implant bone, as well as in the buccal bone plate, which is also the clinically-observed bone resorption area after implant placement. Decreasing implant stability measurements (resonance frequency analysis and torque test) indicated increased peri-implant strain, but their relationships may not be linear. Peri-implant bone strain linearly increased with decreasing bone-implant contact (BIC) ratio. It also linearly decreased with increasing bone-tooth/bone-implant contact ratio. The high strain in the buccal bone plate linearly increased with decreasing buccal bone plate thickness. The results of this study revealed 3D full-field strain in bone-tooth and bone-implant constructs, as well as their several morphological influential factors.
AB - The biomechanics of bone-tooth and bone-implant interfaces affects the outcomes of several dental treatments, such as implant placement, because bone, tooth and periodontal ligament are living tissues that adapt to the changes in mechanical stimulations. In this work, mechanical testing coupled with micro-CT was performed on human cadaveric mandibular bone-tooth and bone-implant constructs. Using digital volume correlation, the 3D full-field strain in bone under implant loading and tooth loading was measured. Concurrently, bone morphology and bone-implant and bone-tooth contact were also measured through the analysis of micro-CT images. The results show that strain in bone increased when a tooth was replaced by a dental implant. Strain concentration was observed in peri-implant bone, as well as in the buccal bone plate, which is also the clinically-observed bone resorption area after implant placement. Decreasing implant stability measurements (resonance frequency analysis and torque test) indicated increased peri-implant strain, but their relationships may not be linear. Peri-implant bone strain linearly increased with decreasing bone-implant contact (BIC) ratio. It also linearly decreased with increasing bone-tooth/bone-implant contact ratio. The high strain in the buccal bone plate linearly increased with decreasing buccal bone plate thickness. The results of this study revealed 3D full-field strain in bone-tooth and bone-implant constructs, as well as their several morphological influential factors.
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U2 - 10.1016/j.jmbbm.2020.103858
DO - 10.1016/j.jmbbm.2020.103858
M3 - Article
C2 - 32501222
AN - SCOPUS:85085571187
VL - 110
JO - Journal of the Mechanical Behavior of Biomedical Materials
JF - Journal of the Mechanical Behavior of Biomedical Materials
SN - 1751-6161
M1 - 103858
ER -