Results 131 to 140 of about 9,929 (260)

Review on thread profile modification methods for the planetary roller screw mechanism. [PDF]

iScience
Sun Y, Zhang K, Shi Z, Xie G, Lv X, Cheng H, Tang Z.   +6 more
europepmc   +1 more source

Mapping the subgingival HerBiome and HisBiome over the human healthspan

Journal of Periodontology, EarlyView.
Abstract Background Understanding the intricate relationship between sex, age, and the oral microbiome is crucial for deciphering the onset and progression of numerous age‐related oral and systemic diseases. Methods Subgingival plaque was collected from 781 periodontally and systemically healthy females and 160 males spanning 0 to 80 years.
Rahul Nikam, Kazune Pax, Michelle Lee‐Scott Beverly, Purnima S. Kumar   +3 more
wiley   +1 more source

Research on precise modeling and grinding methods for full tooth surfaces of nonorthogonal face gears. [PDF]

Sci Rep
Zhengyang H, Chuang J, Xiaozhong D, Jianxin S, Julong Y, Yanzhen Z.   +5 more
europepmc   +1 more source

Research on Theories and New Technologies of Gear Tooth Profile Modification

Jixie chuandong, 1994
本文对齿轮修形进行了理论探讨；引入微机系统来研究非均匀电场的分布规律及其控制机理；控制非均匀电场的分布，对大量齿轮进行了系统的电化学修缘工艺及性能对比实验；得到了满意的结果。
openaire   +1 more source

Dasatinib and quercetin prevent alveolar bone loss in aged mice

Journal of Periodontology, EarlyView.
Abstract Background Recent findings have associated alveolar bone loss (ABL) with the presence of senescent cells. Aging and the accumulation of senescent cells are associated with a pro‐inflammatory environment which may exacerbate tissue damage.
Luisa S. Battistelli, Renata M. Moraes, Yuri C. Santos, Jaqueline L. Ribeiro, Maíra T. Garcia, Renata F. Prado, Florent Elefteriou, Ana Lia Anbinder   +7 more
wiley   +1 more source

Prediction and reduction of dynamic factor based on dynamic behavior of gear systems. [PDF]

Sci Rep
Lee D, Shim SB, Kim S.
europepmc   +1 more source

Aging and periodontitis increase brain dissemination of oral bacteria

Journal of Periodontology, EarlyView.
Abstract Background The microbiome is a dynamic system that changes throughout life. Studies have revealed the relationship between periodontal disease and the oral microbiota; however, the impact of periodontal disease on the expression of senescence markers and on the inflammaging of the oral and systemic microbiome remains unclear.
Ozge Unlu, Tsute Chen, Nil Yakar, Zeliha Guney, Bruce Paster, Isabel Carreras, Alpaslan Dedeoglu, Alpdogan Kantarci   +7 more
wiley   +1 more source

Restoring Severe Adult Tooth Wear Through Interdisciplinary Approach: A Case Report. [PDF]

Case Rep Dent
Un PJ, Ong DC, Foong J.
europepmc   +1 more source

Unsupervised phenotyping of the periodontal architecture through high‐dimensional clustering of electronic health records: A multicenter study

Journal of Periodontology, EarlyView.
Abstract Background To identify novel periodontal phenotypes using unsupervised machine learning on a large‐scale, multicenter cohort, specifically characterizing disease patterns based on the “periodontal architecture” of localized structural failures (tooth mobility and molar furcation defects) rather than global severity averages alone. Methods This
Georgios S. Chatzopoulos, Larry F. Wolff
wiley   +1 more source

Earliest evidence for invasive mitigation of dental caries by Neanderthals. [PDF]

PLoS One
Zubova AV, Zotkina LV, Olsen JW, Kulkov AM, Moiseyev VG, Malyutina AA, Davydov RV, Markin SV, Maksimovskiy EA, Chistyakov PV, Krivoshapkin AI, Kolobova KA.   +11 more
europepmc   +1 more source