Results 131 to 140 of about 1,641,577 (289)

Design and Analysis of Double Circular Arc Tooth Profile of Harmonic Drive

Jixie chuandong, 2015
The double circular arc tooth profile of harmonic drive has a significant impact on the performance of gear transmission,based on the kinematics of harmonic gearing theory,the common tangent double circular arc tooth profile that suitable for harmonic ...
Zhou Linyu
doaj  

Protective factors and critical mucosal thickness for the stability of the peri‐implant soft tissue margin over 5 years: A longitudinal cohort study

Journal of Periodontology, EarlyView.
Abstract Background Peri‐implant soft tissue dehiscence deficiencies (PSTDs) are common esthetic complications in the anterior maxilla, yet the parameters that protect the peri‐implant soft tissue margin (STM) over time remain unclear. Previous studies have identified several risk indicators, but longitudinal thresholds capable of predicting stable STM
Lorenzo Tavelli, Hamoun Sabri, Erfan Barootchi, Martina Stefanini, Giovanni Zucchelli, Hom‐Lay Wang, Istvan A. Urban, Shayan Barootchi   +7 more
wiley   +1 more source

Endodontic Miscellany : Connation or Double tooth

Endodontology, 1998
Y Gupta, N Shah
openaire   +1 more source

Use of ultrasonography in assessing peri‐implant osseous defects: An in vitro study

Journal of Periodontology, EarlyView.
Abstract Background The purpose of this study is to investigate the feasibility and diagnostic accuracy of ultrasonography in peri‐implant defect identification and evaluation, and to compare ultrasonography (USG) with cone‐beam computed tomography (CBCT) in defect identification and evaluation in an in vitro model.
Melissa Rachel Fok, Alice Yee Ting Kan, Chris Tat Chuen Fok, Ray Tanaka, George Pelekos   +4 more
wiley   +1 more source

Demineralized bone allograft fibers versus particulate in sinus augmentation: A double‐arm randomized controlled and histomorphometric study

Journal of Periodontology, EarlyView.
Abstract Background The primary aim of this study was to evaluate histologic wound healing of demineralized freeze‐dried bone allograft (DFDBA), in particulate (P) or fiber (F) form, in combination with deproteinized bovine bone mineral (DBBM) for maxillary sinus floor augmentation.
Kathryn Gabel, Brian L. Mealey, Michael Mills, Archontia A. Palaiologou   +3 more
wiley   +1 more source

基于ANSYS的新型人字齿同步带受力分析

Jixie chuandong, 2012
Double helical synchronous belt drives is a new breakthrough in the structure,which has both straight tooth belt and helical tooth belt’s advantages.We establish a pair of double helical synchronous belt and pulley completely meshing three-dimensional ...
郭建华, 郑娜, 姜洪源, 敖宏瑞
doaj  

Severity of periodontitis and risk of ischemic stroke: A systematic review and meta‐analysis

Journal of Periodontology, EarlyView.
Abstract Background Periodontitis is a prevalent chronic inflammatory disease with a systemic inflammatory burden and is implicated with vascular pathology. This systematic review and meta‐analysis evaluates the association between varying severities of periodontitis and ischemic stroke with various diagnostic criteria.
Steven Sitt, Chloe J. Chang, Chin‐Wei Wang   +2 more
wiley   +1 more source

ANALYSIS OF TOоTH PROFILE AND MESHING CHARACTERISTICS OF DOUBLE CYCLOID PIN GEAR TRANSMISSION

Jixie qiangdu
The double cycloid tooth profile was applied to the NN type planetary gear transmission with small tooth difference. By analyzing the concavity, curvature and radius of curvature of the inner and outer cycloid tooth profile, the characteristics of the ...
CUI JianKun, DING JiaLe, SHI YuHeng, ZHANG DeQi   +3 more
doaj  

Master's Recital: David Malone, double bass

, 2008
This recial is given in partial fulfillment of the requirements for the Master of Music degreeMr. Malone is a student of Paul Ellison.Sonata in D Major, BWV 1028, Johann Sebastian Bach (1685-1750) -- Concertino for flute, viola, and double bass (1925 ...

core  

Double‐VISTA technique with connective tissue graft or acellular dermal matrix for treating multiple recessions associated with non‐carious cervical lesions: A retrospective study

Journal of Periodontology, EarlyView.
Abstract Background This retrospective study evaluated whether clinical outcomes differed between connective tissue graft (CTG) and allogeneic solvent‐dehydrated acellular dermal matrix (ADM) for treating multiple gingival recessions associated with non‐carious cervical lesions (NCCLs) using partial restoration and the double‐vestibular incision ...
Guo‐Hao Lin, Lan‐Lin Chiou, Yu‐Ting Yeh, Shayan Barootchi, Lorenzo Tavelli, Homayoun H. Zadeh, Hom‐Lay Wang   +6 more
wiley   +1 more source