Publications by authors named "Geng-Lin Sun"

The dental pulp contains a relatively low number of stem cells; however, it is considered to be a promising source of stem cells for use in regenerative therapy. To date, it has remained elusive whether there are certain differences in the dental pulp stem cells (DPSCs) from donors of different ages. In the present study, DPSC lines were derived using teeth from children, adolescents, adults and aged donors.

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Article Synopsis
  • This study evaluated the effectiveness of bioabsorbable internal fixation devices on maxillary Lefort I fractures using biomechanical analysis and 3D modeling.
  • It revealed that the fixation with two bioabsorbable plates was unstable, while zygomaticomaxillary pillar fixation proved to be more stable.
  • The findings suggest that the stability of fracture fixation is affected by molar occlusion, enhancing the understanding of bioabsorbable materials in dental applications.
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Objective: To study the biomechanical characteristic of maxillary Le fort- I osteotomy with rigid internal fixation (RIF) , so as to choose best fixation method.

Methods: The 3-dimensional finite element models of maxillary Le Fort-I osteotomy with 9 kinds of RIF methods were established. Then the models were divided into three groups to calculate the stress distribution of the maxilla and the displacement of bone segment under 3 kinds of occlusion condition.

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Objective: Establish the three-dimensional finite element models of mandibular bilateral sagittal split ramus osteotomy (BSSRO) with rigid internal fixation (RIF), for further study of BSSRO.

Methods: CT scanned technology and the finite element software (ANSYS) were used to establish the original three-dimensional model of mandible, modify the model to animate the BSSRO, then establish the model of RIF, last mesh the model to establish the finite element model of BSSRO with RIF. Apply 100 N occlusion force at the central incisor; calculate the stress distribution of the mandible and the RIF.

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