نتایج جستجو برای: dentinal tubules

تعداد نتایج: 14345  

Journal: :Brazilian oral research 2004
Daniela Leal Zandim Fernanda Oliveira Bello Corrêa José Eduardo Cezar Sampaio Carlos Rossa Júnior

Dentin hypersensitivity is a common painful condition observed in clinics. Dietary habits have been much associated with its development and persistence during and following periodontal treatment. The aim of this in vitro study was to evaluate the influence of vinegars on the removal of smear layer and exposure of dentinal tubules. Extracted human teeth were submitted to manual scaling with Gra...

2014
Sophia Thakur

Dentin hypersensitivity is an oft encountered dental complaint, the management of which has evolved incredibly but remains an enigma.Nano-hydroxyapatite (n-HAp) is considered one of the most biocompatible and bioactive materials, and has gained wide acceptance in medicine and dentistry in recent years. An increasing number of reports have shown that nano-hydroxyapatite has the potential to remi...

Journal: :Anatomical science international 2004
Mitsuko Moriguchi Marie Yamada Takaaki Yanagisawa

Keratan sulfate proteoglycan and dermatan sulfate proteoglycan have been reported to inhibit collagen fibrillogenesis. We investigated their distribution in order to evaluate the role of proteoglycan in dentinogenesis. Specimens of porcine tooth-germ dentin and erupted teeth were the materials on which antibodies to keratin sulfate and dermatan sulfate proteoglycan were used. Predentin was foun...

Journal: :Journal of endodontics 2010
Raffaele Paragliola Vittorio Franco Cristiano Fabiani Annalisa Mazzoni Fernando Nato Franklin R Tay Lorenzo Breschi Simone Grandini

INTRODUCTION This study examined the effect of different root canal irrigant agitation protocols in the penetration of an endodontic irrigant into dentinal tubules. METHODS Fifty-six human single-rooted teeth were shaped with nickel-titanium instruments, and a final rinse of 5% sodium hypochlorite labeled with 0.2% alizarin red was performed. Specimens were assigned to 7 groups (N = 8) and su...

2017
Yuan Gao Kunneng Liang Jianshu Li He Yuan Hongling Liu Xiaolei Duan Jiyao Li

In recent years, scientists have developed various biomaterials to remineralize human teeth to treat dentine hypersensitivity. Poly(amido amine) (PAMAM) dendrimers have become a research focus in this field. It has been demonstrated that PAMAM is able to create precipitates both on the surface of and within the dentinal tubules, however, there is little information about its effect on reducing ...

Journal: :Brazilian dental journal 2009
Ivar A Mjör

Permeability involves the passage of fluids, ions, molecules, particulate matter and bacteria into and through a substance or tissue under different and varying conditions. The permeability of the dentin is essential to support the physiology and reaction patterns of the pulp-dentin organ. Nutrients and impulses are transported from the pulp via the odontoblast process and the contents of its t...

Journal: :Journal of endodontics 2011
Ove A Peters Sean Bardsley Jennifer Fong Goldie Pandher Enrico Divito

INTRODUCTION This study set out to compare the efficacy of laser-activated and ultrasonically activated root canal disinfection with conventional irrigation, specifically its ability to remove bacterial film formed on root canal walls. METHODS Seventy human premolars were shaped to an apical size #20, taper .07, sterilized, and contaminated in situ with oral bacteria for 1 week and incubated ...

Journal: :Brazilian dental journal 2015
Rogério Vieira Silva Frank Ferreira Silveira Martinho Campolina Rebello Horta Marco Antônio Húngaro Duarte Bruno Cavalini Cavenago Ivaldo Gomes de Morais Eduardo Nunes

The aim of this study was to evaluate the filling effectiveness and dentinal penetration of the sealers AH Plus, Pulp Canal Sealer EWT, Sealapex and MTA Fillapex applied according to the vertical condensation technique using thermoplastic gutta-percha. Forty single-rooted teeth were selected. After chemical-mechanical preparation and root-canal filling, sections of the root (2, 4 and 6 mm from ...

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