Results 161 to 170 of about 674,231 (212)

Dentin permeability: sealing the dentin in crown preparations.

Operative dentistry, 1992
Provisional restorations of full crown preparations may permit more microleakage of bacteria and their products than the final castings do. However, most investigations of the sealing qualities of cemented castings have reported that they too permit dye leakage.
E L, Pashley, R W, Comer, M D, Simpson, J A, Horner, D H, Pashley, W F, Caughman   +5 more
openaire   +1 more source

Dentin permeability and dentin sensitivity.

Proceedings of the Finnish Dental Society. Suomen Hammaslaakariseuran toimituksia, 1992
The hydrodynamic theory of dentin sensitivity is based on the premise that sensitive dentin is permeable throughout the length of the tubules. Such a condition may permit the diffusion of bacterial products across dentin to the pulp where they may cause irritation of pulpal soft tissues.
openaire   +1 more source

Effect of dentin desensitizers and dentin bonding agents on dentin permeability.

American journal of dentistry, 2002
To determine the effect of dentin desensitizing agents (oxalates and glutaraldehyde) and dentin bonding agents, with and without resin-based composite (RBC) on dentin permeability and morphology of the dentin surface. The influence of saliva and toothbrushing on these agents was also evaluated.Radicular dentin discs +/-1 mm thick were obtained from ...
P, Jain, J W, Reinhardt, K V, Krell
openaire   +1 more source

In vitro dentin permeability and tubule occlusion of experimental in-office desensitizing materials

Clinical Oral Investigations, 2022
Laryssa de Castro Oliveira, Vitória Marega Marchetti, Fernanda de Souza e Silva Ramos, A. Delbem, M. T. Souza, B. Ganss, L. Theodoro, T. Fagundes   +7 more
semanticscholar   +1 more source

Dentin Permeability: Effects of Temperature on Hydraulic Conductance

Journal of Dental Research, 1983
The rates of fluid movement across dentin discs, in vitro, were measured at 10, 20, 30, 40, and 50°C in unetched and acid-etched dentin. Increasing the temperature 40° (i.e., from 10 to 50°C) resulted in a 1.8-fold increase in fluid flow in unetched dentin, which was of a magnitude similar to the decrease in viscosity that occurred over the same ...
D H, Pashley, S M, Thompson, F P, Stewart   +2 more
openaire   +2 more sources

[The influence of dentin conditioning on permeability of dentin].

Deutsche Stomatologie (Berlin, Germany : 1990), 1992
In this study the influence of four different pretreatments showed significant differences on the permeability of cut dentin. On the average the application of 25% polyacrylic acid increased the permeability by approximately 10 percent, the application of 34% polyacrylic acid by 30 percent.
H G, Schaller, P, Stumbaum, W, Gotze
openaire   +1 more source

Dentine permeability and its role in the pathobiology of dentine sensitivity

Archives of Oral Biology, 1994
The classical hydrodynamic theory implicated fluid movement as a transducing mechanism in the production of dental sensitivity. This theory assumes that sensitive dentine must be permeable. Various measurements of dentine permeability are discussed, including: (1) factors that influence diffusive permeation across dentine; (2) factors that influence ...
openaire   +2 more sources

[Microbial permeability of dentin].

Stomatologia, 1990
This is a review of the literature about the contemporary aspects of microbial permeability of dentin. They are discussed the factors that are responsible for this question and analytically: the structure of dentin, the composition of dentin in organic and inorganic ingredients, the response mechanisms of dentin, that is the irritation dentin and ...
openaire   +1 more source

Experimental pastes containing niobophosphate and 45S5 bioactive glasses for treatment of dentin hypersensitivity: dentin permeability and tubule obliteration

Clinical Oral Investigations, 2022
Samantha Ariadne Alves de Freitas, Paulo Vitor Campos Ferreira, Edilausson Moreno Carvalho, Mayra Alejandra Nuñez Aldaz, A. Loguércio, R. Grazziotin‐Soares, C. Carvalho, Adriana-de Fátima-Vasconcelos Pereira, J. Bauer   +8 more
semanticscholar   +1 more source

Dentin permeability after toothbrushing with different toothpastes.

American journal of dentistry, 1999
To evaluate the interaction of smear layer produced during brushing and dentifrice particles.Dentin disks were obtained from extracted human third molars. Dentin permeability was evaluated using a hydraulic pressure apparatus working at 1 psi of pressure.
C. Prati, S. Chersoni, LUCCHESE , ALESSANDRA, D. H. Pashley, R. Mongiorgi   +4 more
openaire   +3 more sources