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| 1 | Stabilization of an abutment under a rigidly fixed bridge by holographical-speckle interferometry显示文摘Objective: There are no detailed reports of three-dimensional measurement of abutment teeth in mastication, because it is knotty to observe the rotation in chewing directly, and inexact to estimate indirectly. This work studies the three-dimensional stability of rigidly fixed bridge under the stresses of distributed loads and concentrated loads by optical method that gives the tip angle and rotation angle calculated directly based on measurement data. Methods: The specimen, taken from a 25-year-old male, was a left mandible without the second premolars and the first molars. As abutments, first premolar and second molar have complete periodontium. The specimen was soaked in formaldehyde solution. The bridge was fixed between two abutment teeth (first premolars and second molars), and the mandible was cemented in a steel box. The load was increased from 0 kg to 23 kg. Laser holographic technique was used to measure the three-dimensional bit shift of the dens, both buccolingual bit shift and mesiodistal bit shift, and determine tip angle and rotation angle. Results: The effects of stress distribution on the rigidly fixed bridge were evaluated, and stabilization of the bridge under the stresses of distributed loads and concentrated loads, respectively, were analyzed. The results showed that the tips of two abutments were very similar, and no distinct difference was observed between the distributed load and the concentrated load. However, the maximum rotation angle for the distributed load was two to four times as large as that for the concentrated load. In the experiment, the tip angle of the abutment teeth was no more than 0.65 degree, and the rotation angle was no more than 0.60 degree. All maximum angles occurred in the second molar. Conclusion: The fixed bridge is considered to be safe. In addition, a method for measuring the rotation angle was provided effectively. | ZHANG Yan-zhen ZHOU Yan-chun LIU Li LU Yang HIROFUMI Yatani | 2007 | Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2007，8，6： | 2 |
| 2 | The validity of clini- cal examination for diagnosing anterior disk displacement without reduction显示文摘 | Yatani H Suzuki K Kuboki T | 1998 | Oral Surg Oral Med Oral Pathol Oral RadiolEndod1998，85，6： | 1 |
| 3 | Trends in frequency of latent prostate carcinoma in Japan from 1965-1979 to 1982-1986 显示文摘 | Shiraishi T Nakakuki K | 1998 | J Natl Cancer Inst1998，80，： | 1 |
| 4 | Down regulation of the L-typeCa2+channel,GRK2,and phosphorylated phospholamban:protec-tive mechanisms for the denervated failing heart显示文摘 | Yatani A Shen YT Yan L | 2006 | J Mol CellCardiol2006，40，5： | 1 |
| 5 | Angiotention Ⅱ type Ⅰ receptor blockade prevent diastolic heart failure through modulation of Ca2+ regulatory proteins and extracellular matrix显示文摘 | Plank DM Yatani AR itsu H | 2003 | J Hypertens2003，21，9： | 1 |
| 6 | Geographic pathology of latent prostatic carcinoma显示文摘 | Yatani R Chigusa I Akazaki K | 1982 | Int J Cancer1982，29，6： | 1 |
| 7 | Mechanical properties of new self-adhesive resin-based cement显示文摘 | Takashi Nakamura Kazumichi Wakabayashi Soichiro Kinuta Hisataka Nishida Morihiro Miyamae Hirofumi Yatani | 2009 | Journal of Prosthodontic Research2009，，2： | 1 |
| 8 | A novel mechanism for myocardial stunning involving impaired Ca^2+ handling显示文摘 | KIM S J KUDEJ R K YATANI A | 2001 | Circ Res2001，89，： | 1 |
| 9 | Enhanced Ca^2+ channel currents in cardiac hypertrophy induced by activation of calcineurin-dependent pathway显示文摘 | Yatani A Honda R Tymitz KM | 2001 | J Mol Cell Cardiol2001，33，3： | 1 |
| 10 | Enhanced Ca^2+ channel currents in cardiac hypertrophy induced by activation of calcineurin-dependent pathway显示文摘 | Yatani A Honda R Tymitz KM | 2001 | J Mol Cell Cardiol2001，33，2： | 1 |
| 11 | A novel mechanism for myocardial stunning involving impaired Ca2+ handling显示文摘 | KIM SJ KUDEJ RK YATANI A | 2001 | Circ Res2001，89，9： | 1 |
| 12 | Reciprocal roles of MSX2 in regulation of osteoblast and adipocyte differentiation显示文摘 | Ichida F Nishimura R Hata K Matsubara T Ikeda F Hisada K Yatani H Cao X Komori T Yamaguchi A Yoneda T | | 0，，： | 1 |
| 13 | BodyScope:A Wearable Acoustic Sensor for Activity Recognition显示文摘 | Yatani K Truong K.N | | 0，，： | 1 |
| 14 | Down regulation of the L-type Ca2 channel, GRK2, and phosphorylated phospholamban : Protective mechanisms for the denervated failing heart 显示文摘 | Yatani A Shen Y T Yan L | 2006 | JMol Cell Cardiol2006，40，5： | 1 |
| 15 | Changes in ionic currents and B-adrenergic receptor signaling in hypertrophied myocytes overexpressing Galpha (q)显示文摘 | Mitarai S Reed TD Yatani A | 2000 | Am J Physiol Heart Circ Physiol2000，279，1： | 1 |
| 16 | Tails of the L-type Ca^2+ Channel To Sense Oxygen or Not 显示文摘 | Yatani A Kamp TJ | 2000 | Cire Rec2000，87，7： | 1 |
| 17 | Role of gut-lymph factors in the induction of burn-induced and traumashock-induced acute heart failure显示文摘 | Lee MA Yatani A Sambol JT | 2008 | Im J Clin Exp Med2008，1，2： | 1 |
| 18 | Suspected association of an allergic reaction with titanium dental implants: A clinical report显示文摘 | Hiroshi Egusa Nagakazu Ko Tsunetoshi Shimazu Hirofumi Yatani | 2008 | The Journal of Prosthetic Dentistry2008，，5： | 1 |
| 19 | Role of gut-lymph factors in the induction of burn-induced and trauma-shock-induced acute heart failure显示文摘 | Lee MA Yatani A Sambol JT | 2008 | Int J Clin Exp Med2008，1，2： | 1 |
| 20 | Calcium dynamics in the failing heart:restoration by beta-adrenergic receptor blockade显示文摘 | Plank DM Yatani A Ritsu H | 2003 | Am J Physiol Heart Circ Physiol2003，285，1： | 1 |
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