Distribution of Micromotion in Implants and Alveolar Bone with Different Thread Profiles in Immediate Loading:A Finite Element Study

in Sciences Citation Index(SCI), 科學引文索引資料庫(SCI)
標題Distribution of Micromotion in Implants and Alveolar Bone with Different Thread Profiles in Immediate Loading:A Finite Element Study
出版類型SCI(Sciences Citation Index)
出版年度2012
AuthorsPei-Kun Chang, 張培焜, Yung-Chuan Chen 陳宜君, Ching-Chieh Huang 黃俊傑, Lu 盧威華, Yung-Chuan Chen 陳勇全, & Hsun Heng Tsai 蔡循恒
開始頁96
頁數5
出版日期2012 / 11
其他編號0000
中文摘要

Purpose: To detect the differences in the distribution of micromotion within implants and alveolar bone with
different implant thread designs during immediate loading. Materials and Methods: A three-dimensional
finite element model with contact elements was used to simulate the contact behavior between the implant
and alveolar bone. Implants with four different thread designs were created: Acme (trapezoidal) thread (AT),
buttress thread (BT), square thread (ST), and a standard V-thread (VT). To simulate immediate loading, the
model was designed without osseointegration between the implant and alveolar bone. A load of 300 N was
applied axially to the model, and the micromovements were measured. Results: The maximum micromotion
values of the ST, AT, VT, and BT models were 8.53, 9.57, 11.00, and 15.00 μm, respectively. All micromotion
was located near the interface of cortical and cancellous bone. Different thread designs showed different
distribution of micromotion during loading. This indicates that initial stability in immediate loading may be
affected by thread design. Conclusion: The ST profile showed the most favorable result in the study. An
implant with an ST profile might provide the best primary stability in an immediate loading situation. Int J
Oral Maxillofac Implants 2012;27:e96–e101

期刊名稱The International Journal of Oral & Maxillofacial Implants
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