Publications by authors named "Masahito Shigematsu"
Objectives: The purpose of this study is to investigate the origin and expansion of the Jomon population, the Neolithic inhabitants of the Japanese archipelago, and peopling East/Northeast Asian region through a global comparison between the prehistoric samples from around the world.
Methods: R-matrix approach was applied to 20 nonmetric cranial traits for assessing the population structure and history of the Jomon. Pattern of ancient group relationships on a global scale was presented using network splitstree applied to distance matrix transformed from the R-matrix.
Oral rehabilitation using pre-shaped Epitec fixation systems after extensive maxillary tumor surgery.
Int J Oral Maxillofac Surg
March 2009
Article Synopsis
- Reconstruction of maxillary defects is a significant challenge for surgeons, and the authors present two successful cases of malignant tumors in the maxilla repaired with immediate prostheses using an Epitec-system.
- The Epitec-plates offered strong support for the maxillodental prosthesis, enhancing retention and functionality right after surgery.
- A craniofacial skull model was created to improve the fitting of Epitec-plates and streamline the surgical process, allowing for an efficient and immediate maxillary prosthesis placement post-tumor resection.
Segmental mandibulectomy is a treatment option for benign and malignant neoplasms of the mandible. Although reconstructing the mandible of a patient with a missing segment is difficult, it is essential to improve the postoperative course of the patient. Mandibular reconstruction using titanium mesh is a useful technique for dental implant placement because the morphology of the mandible can be easily reproduced.
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