Results 81 to 90 of about 13,196 (188)

Histopathological Study of Periapical Inflammation Following Preparation of the Root Canal with Conventional and Profile Rotary Instrumentation in Teeth of Cats

open access: yesFrontiers in Dentistry, 2005
Statement of Problem: Various factors are involved in causing inflammation following root canal treatment. Controlling these factors may relieve the related pain. One of these factors is extrusion of debris beyond the apex.
M. Bidar   +3 more
doaj  

Seleção das estruturas calcificadas para determinação da idade da piracatinga Calophysus macropterus Lichtenstein (Siluriformes: Pimelodidae) na Amazônia Central, Brasil Selection of calcificated structure for aging of the piracatinga, Calophysus macropterus Lichtenstein (Siluriformes: Pimelodidae) in the Central Amazon, Brazil

open access: yesActa Amazonica, 2003
O objetivo deste trabalho foi identificar a estrutura calcificada mais adequada para a determinação da idade da piracatinga (Calophysus macropterus). Foram analisados 440 indivíduos procedentes da pesca comercial e experimental do Baixo Solimões.
Alfredo Pérez, Nidia Noemi Fabré
doaj   +1 more source

Role of the porous structure of the bioceramic scaffolds in bone tissue engineering [PDF]

open access: yes, 2010
The porous structure of biomaterials plays a critical role in improving the efficiency of biomaterials in tissue engineering. Here we fabricate successfully porous bioceramics with accurately controlled pore parameters, and investigate the effect of pore
Bai Feng   +7 more
core   +1 more source

A cyanoacrylate direct bonding system of orthodontic attachments [PDF]

open access: yes, 1973
Thesis (M.Sc.D.)--Boston University School of Graduate Dentistry, 1973.
Fasy, James J.
core  

A New Technique For the Histochemical Demonstration of Phosphatase in Hard Tissue [PDF]

open access: yes, 1956
この論文は国立情報学研究所の学術雑誌公開支援事業により電子化されました。A new histochemical technique for the demonstration of alkaline phosphatase in hard tissues was described. This method is characterized by the following three points.
AKAHOSHI, Yoshihiko, TAKAMATSU, Hideo
core  

Quantifying attributes of boring bivalve populations in corals using micro-computed tomography

open access: yesFrontiers in Marine Science
Bioerosion plays a crucial factor in shaping the structure and function of coral reef ecosystems, with bioeroders actively altering both the physical and ecological dynamics of coral substrates.
Netanel Kramer   +8 more
doaj   +1 more source

Regulation of early accelerated carbonation behavior in nano-modified cementitious materials under low concentration CO2

open access: yesJournal of Materials Research and Technology
Accelerated carbonation has emerged as a promising curing technique for cementitious materials, attracting increasing attention. However, the efficient utilization of low concentration CO2 sources in cementitious systems remains a significant challenge ...
Xu Chen   +8 more
doaj   +1 more source

Root canal morphology of mandibular first premolar in a Gujarati population - An in vitro study

open access: yesDental Research Journal, 2011
Background: Knowledge about root canal morphology and its frequent variations can exert considerable influence on the success of endodontic treatment. The aim of this study was to survey the root canal morphology of mandibular first premolar teeth in a ...
Atul Jain, Rachana Bahuguna
doaj  

Development of a zinc chloride-based chemo-mechanical system for potential minimally invasive dental caries removal system

open access: yesJournal of Dental Sciences
Background/purpose: The chemo-mechanical caries-removal technique is known to offer advantages of selective dentin caries treatment while leaving healthy dental tissues intact.
Yu-Tzu Wu   +11 more
doaj   +1 more source

Ultrasonic bone densitometer [PDF]

open access: yes, 1972
Human bone density changes can be determined by a device originally developed for in-flight testing of astronauts' bones during extended space missions.
Hoop, J. M.
core   +1 more source

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