Results 91 to 100 of about 1,430,822 (386)

Comparisons of modified Vasco X-2 and AISI 9310 gear steels [PDF]

Endurance tests were conducted with four groups of spur gears manufactured from three heats of consumable electrode vacuum melted (CVM) modified Vasco X-2. Endurance tests were also conducted with gears manufactured from CVM AISI 9310. Bench type rolling
Townsend, D. P., Zaretsky, E. V.
core   +1 more source

A detailed redescription of a skeletally immature ‘Redondasaurus’ suggests ontogenetic transformations in the taxon mirror phytosaurian morphological evolution

The Anatomical Record, EarlyView.
Abstract The study of morphological evolution is fundamentally tied to ontogeny, yet studies of these heterochronic processes in the fossil record are rare. Fossils belonging to an ontogenetic series are difficult to assign to an ontogenetic stage due to inconsistent proxies for skeletal ages, challenging to taxonomically assign due to morphological ...
Erika R. Goldsmith, Michelle R. Stocker
wiley   +1 more source

Splinting of Longitudinal Fracture: An Innovative Approach

Case Reports in Dentistry, 2016
Trauma may result in craze lines on the enamel surface, one or more fractured cusps of posterior teeth, cracked tooth syndrome, splitting of posterior teeth, and vertical fracture of root.
Rashmi Bansal, Priyanka Chowdhary, Anuraag Gurtu, Nakul Mehrotra, Abhinav Kishore   +4 more
doaj   +1 more source

Histology and fossil diagenesis of a pterosaur tooth from the Crato Formation (Lower Cretaceous of Brazil)

The Anatomical Record, EarlyView.
Abstract Pterosaur dental biology remains poorly understood despite its importance for comprehending feeding strategies and flight adaptations. Here, we present the first comprehensive histological analysis of an ornithocheiriform pterosaur tooth from the Lower Cretaceous Crato Formation (Santana Group, Northeast Brazil).
Tito Aureliano, Matheus P. S. Rocha, Francisco P. Lima‐Filho, Aline M. Ghilardi   +3 more
wiley   +1 more source

Stiffness Modeling of Tooth Interior Fatigue and Tooth Flank Fracture and Their Fault Characteristics in Electromechanical Coupling Systems

Shock and Vibration
Tooth flank fracture (TFF) and tooth interior fatigue fracture (TIFF) usually occur on case-harden gears in electromechanical coupling systems, both starting from the core caused by metal fatigue. The cracks propagate rapidly compared with the total life
Lin Han, Dianrui Wang, Muhammad Anwar Jan, Fuchun Yang   +3 more
doaj   +1 more source

The skeleton of the green Iguana iguana (Squamata: Iguanidae) and its intraspecific morphological variation

The Anatomical Record, EarlyView.
Abstract The green iguana (Iguana iguana) is an iguanine lizard with herbivorous and arboreal habits, whose distribution spans through South America, Central America to the south of North America. Although the genus Iguana is well‐known, the species still lacks a comprehensive and up‐to‐date anatomical study, particularly addressing the axial skeleton,
Vieno Rosa, Marcos Vinícius Coelho, Camila Cupello   +2 more
wiley   +1 more source

Pulpotomy In Young Permanent Teeth With Complicated Crown Fracture

International Dental Journal
Introduction: The purpose of this case report was to describe a young permanent tooth with complicated crown fracture treated by Pulpotomy and coronal fragment reattachment, the root development was observed for 6 years.
Shu Diao
doaj   +1 more source

Management of Cracked tooth syndrome: A case Report

Update Dental College Journal, 2014
Cracked tooth is a distinct type of longitudinal tooth fracture which occurs very commonly and its diagnosis can be challenging. This type of fracture tends to grow and change over time. Clinical diagnosis is difficult because the signs and symptoms are
AHM Zakir Hossain Shikdera, SM Abdul Quader, Shirin Sultana Chowdhury, Ferdousi Begum, Md Nazmul Hasan   +4 more
doaj   +1 more source

Restoration of human tooth enamel

BMEMat, EarlyView.
Human tooth enamel has remarkable properties but lacks self‐repair ability. Existing restorative materials cannot fully replicate enamel's microstructure and function, resulting in low restorative efficiency. This review summarizes the formation process and characteristics of enamel, and current restorative materials and future research directions are ...
Hanlin Liu, Bo Li, Mingrui Gao, Yangbei Li, Xiuyi Yang, Fengshi Li, Zhi Cai, Yi Liu, Shaojia Liu, Hewei Zhao, Lin Guo   +10 more
wiley   +1 more source

The effect of sodium nitroprusside in scaffolds for synergetic gas‐photothermal therapy of osteosarcoma

BMEMat, EarlyView.
The PCLA‐SNP scaffolds can produce photothermal agents in situ under ultraviolet radiation. Then, the scaffold can release nitric oxide gas spontaneously and generate hyperthermia under near‐infrared laser to enhance ablation of bone tumors. Furthermore, the calcium and iron ions released from PCLA‐SNP scaffolds can accelerate bone regeneration ...
Shaojie Dong, Yuwei Zhang, Yukun Mei, Changjie Sun, Xingge Yu, Mazaher Gholipourmalekabadi, Kaili Lin, Lin Niu, Li Zhao, Changyong Yuan   +9 more
wiley   +1 more source