Shigaku = Odontology
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Simulating porcelain firing effect on the structure, corrosion and mechanical properties of Co–Cr–Mo dental alloy fabricated by soft milling
Shigaku = Odontology - - Trang 1-18 - 2023
This study aims at evaluating the effect of simulating porcelain firing on the microstructure, corrosion behavior and mechanical properties of a Co–Cr–Mo alloy fabricated by Metal Soft Milling (MSM). Two groups of Co-28Cr-5Mo specimens (25 × 20 × 3 mm) were prepared by MSM: The as-sintered (AS) specimens and the post-fired (PF) specimens that were subjected to 5 simulating porcelain firing cycles ......
Comparison of different techniques for removal of calcium hydroxide from straight root canals: an in vitro study
Shigaku = Odontology - Tập 105 - Trang 453-459 - 2017
To compare four different techniques for removal of calcium hydroxide from straight root canals. The present study used the design suggested by Lee et al. (Int Endod J 37:607–612, 32) and van der Sluis et al. (Int Endod J 40:52–57, 17). One-hundred and ten extracted human teeth with straight root canals were prepared to ISO-size 50 and split longitudinally. Two lateral grooves were prepared, fille......
The effect of the angle of acuteness of additive manufactured models and the direction of printing on the dimensional fidelity: clinical implications
Shigaku = Odontology - Tập 105 - Trang 108-115 - 2016
The influence of the acuteness of the model angle and the direction of printing was investigated on different three-dimensional (3D) printers to understand the fidelity of 3D printing. A Polyjet printer and two fused deposition modeling printers were used in the present study. Computer-aided design (CAD) models were designed in the form of a triangular prism with a height of 15 mm and with varying......
Study of clinical factors, focus score, lymphocyte type and NF-κB pathway in Sjögren’s syndrome
Shigaku = Odontology - Tập 111 - Trang 207-216 - 2022
Sjögren's syndrome (SS) is an autoimmune disease that occurs predominantly in middle-aged and older women. Although focus score (FS) and lesion grade are determined at pathological diagnosis, few reports have examined whether these results reflect clinical symptoms. In this study, we examined and compared the results of comprehensive immunohistochemical staining of lymphocytes and NF-κB pathway in......
The gingiva contains leptin and leptin receptor in health and disease
Shigaku = Odontology - Tập 100 - Trang 222-231 - 2011
The presence of leptin (OB) and soluble OB receptor (s-OB-R) in gingival tissue extract and gingival crevicular fluid has led the studies investigating the relationship between OB and periodontal diseases. This study aims to investigate the levels of OB and s-OB-R in serum and their presence in gingiva of healthy controls (HC), gingivitis (G), aggressive periodontitis (AP), and chronic periodontit......
Clinical study on natural gingival color
Shigaku = Odontology - Tập 107 - Trang 80-89 - 2018
The aims of the study were: to describe the gingival color surrounding the upper incisors in three sites in the keratinized gingiva, analyzing the effect of possible factors which modulate (socio-demographic and behavioral) intersubject variability; to study whether the gingiva color is the same in all three locations and to describe intrasubject color differences in the keratinized gingiva band. ......
Evaluation of four instruments with different working motion using artificial plastic model with C-shaped single canal
Shigaku = Odontology - Tập 106 - Trang 422-428 - 2018
The purpose of this study was to evaluate four instruments with different working motion for preparation of a C-shaped single canal wall using the same artificial plastic models reproduced from a human tooth. One tooth with root canal morphology C1 (the shape is an uninterrupted “C” with no separation or division) was selected among three-dimensional micro-computed tomography (micro-CT) imaging da......
Đánh giá hệ thống về thành công lâu dài của các implant răng được phủ plasma-calcium phosphate Dịch bởi AI
Shigaku = Odontology - Tập 104 - Trang 347-356 - 2016
Các mục tiêu của bài đánh giá hiện tại là (1) đánh giá hệ thống, và (2) đánh giá dữ liệu thành công lâu dài của các implant răng được phủ plasma-calcium phosphate (CaP) trong các thử nghiệm lâm sàng có thời gian theo dõi ít nhất 5 năm. Để mô tả hiệu quả lâu dài của các implant chức năng, các biến kết quả được đưa ra là (a) tỷ lệ biến chứng hàng năm (ACR) và (b) tỷ lệ thành công tích lũy (CSR), như......
#implant răng #phospho canxi #plasma-spray #thành công lâu dài #biến chứng
Early bond strength of two resin cements to Y-TZP ceramic using MPS or MPS/4-META silanes
Shigaku = Odontology - Tập 99 - Trang 62-67 - 2011
For cementation of yttrium-stabilized tetragonal zirconium polycrystal (Y-TZP) ceramic frameworks, protocols of surface-conditioning methods and available cements vary, resulting in confusion among clinicians regarding selection and effects of different conditioning methods on cement adhesion. This study evaluated the effect of two silanes (3-trimethoxysilylpropylmethacrylate (MPS) and 3-trimethox......
Condition of depressive symptoms among Japanese dental students
Shigaku = Odontology - Tập 99 - Trang 179-187 - 2011
The Zung Self-Rating Depression Scale (SDS) is generally used to screen for the presence of depression. The purpose of this study was to investigate scores on the SDS, Japanese version, in undergraduates at Tsurumi University School of Dental Medicine in Yokohama, Japan. A total of 2,197 dental students completed the SDS from 2006 through 2008. The investigation took place each year over a 3-week ......
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