Results 171 to 180 of about 1,982,012 (407)

Study of lubricant jet flow phenomena in spur gears: Out of mesh condition [PDF]

, 1983
The penetration depth onto the tooth flank of a jet of oil at different velocities pointed at the pitch line on the outgoing side of mesh was determined. The analysis determines the impingement depth for both the gear and the pinion.
Akin, L. S., Townsend, D. P.
core   +1 more source

A perspective from the Mesozoic: Evolutionary changes of the mammalian skull and their influence on feeding efficiency and high‐frequency hearing

The Anatomical Record, EarlyView.
Abstract The complex evolutionary history behind modern mammalian chewing performance and hearing function is a result of several changes in the entire skeletomuscular system of the skull and lower jaw. Lately, exciting multifunctional 3D analytical methods and kinematic simulations of feeding functions in both modern and fossil mammals and their ...
Julia A. Schultz
wiley   +1 more source

In‐vitro puncture experiment using alligator teeth tracks the formation of dental microwear and its association with hardness of the diet

The Anatomical Record, EarlyView.
Abstract With the development of dental microwear texture analysis (DMTA), there has been an increasing application of DMTA for dietary estimation in extant and fossil reptiles, including dinosaurs. While numerous feeding experiments exist for herbivorous mammals, knowledge remains limited for carnivorous reptiles. This study aimed to qualitatively and
K. Usami, M. O. Kubo
wiley   +1 more source

Effect of Ovariectomy on Orthodontic Tooth Movement in Rats

Journal of Islamic Dental Association of Iran, 2016
Background and Aim: Estrogen affects the metabolism in females. This study aimed to assess the effect of absence of estrogen on orthodontic tooth movement in rats.
Mohammad Amin Mackie, Shahla Momeni Danaei, Salma Habibagahi, Nader Tanide, Ali Dehghani Najvani, Mostafa Montazeri   +5 more
doaj  

The Dilemma of the Open Gingival Embrasure Between Maxillary Central Incisors [PDF]

, 2008
Aim: The aim of this report is to present the etiology, diagnosis, and treatment planning strategy in the presence of an open gingival embrasure between the maxillary central incisors.
Bosio, Jose A., Furquim, Bruno D\u27Aurea, Maruo, Hirushi, Pascotto, Renata Correa, Ribeiro, Gerson Luiz Ulema, Tanaka, Orlando Motohiro   +5 more
core   +1 more source

Has Invisalign improved? A prospective follow-up study on the efficacy of tooth movement with Invisalign.

American Journal of Orthodontics and Dentofacial Orthopedics, 2020
Nada Haouili, Neal D. Kravitz, Nikhilesh R Vaid, D. Ferguson, L. Makki   +4 more
semanticscholar   +1 more source

Dental fluorosis in the European roe deer (Capreolus capreolus): A review of the pathological changes in the enamel of fluorotic cheek teeth and the abnormal pattern of dental wear in affected dentitions

The Anatomical Record, EarlyView.
Abstract This article reviews the pathological changes in the enamel of permanent mandibular cheek teeth and their sequelae in European roe deer from regions polluted by anthropogenic fluoride emissions. The primary (developmental) changes of fluorotic roe deer enamel are hypomineralization and microstructural aberrations, including enamel hypoplasia ...
Uwe Kierdorf, Horst Kierdorf
wiley   +1 more source

Magnitude of orthodontic forces and rate of bodily tooth movement. An experimental study [PDF]

, 1996
Jack J.G.M. Pilon, Anne Marie Kuijpers‐Jagtman, Jaap C. Maltha   +2 more
openalex   +1 more source

Comparative and functional anatomy of masticatory muscles and bite force in opossums (Didelphimorphia, Didelphidae)

The Anatomical Record, EarlyView.
We describe the functional anatomy of masticatory muscles in nine opossums, finding a generalized anatomical pattern with differences related to skull morphology. Variation in quantitative myological data and estimated bite force was mostly related to size, and the increase in bite force supports dietary diversification associated with size increase ...
Juann A. F. H. Abreu, Diego Astúa
wiley   +1 more source

Replication of Known Dental Characteristics in Porcine Skin: Emerging Technologies for the Imaging Specialist [PDF]

, 2014
This study demonstrates that it is sometimes possible to replicate patterns of human teeth in pig skin and determine scientifically that a given injury pattern (bite mark) correlates with the dentitions of a very small proportion of a population dataset,
Ahn, Kwang Woo, Corliss, George, Groffy, Ronald L., Jeutter, Dean C, Johnson, L. Thomas, Radmer, Thomas W, Stafford, Gary L, Thulin, Joseph, Visotky, Alexis, Wirtz, Thomas   +9 more
core   +1 more source