Effects of the degree of tubule occlusion on the permeability of human dentine in vitro

Pashley, David H.; Livingston, Man J.; Reeder, O.W.; Horner, Jack A.

doi:10.1016/0003-9969(78)90119-x

Cited by 125 publications

(71 citation statements)

References 9 publications

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“…Thus, the changes in permeability in this experiment were considered a percentage of Stage 1, using the Lp value as 100% flow permits evaluation of modifications in dentin permeability following the test treatments. Each specimen was its own control (4,6,11,12). This study showed that exposure to acidic beverages removed the smear layer surface and increased dentin permeability.…”

Section: Discussionmentioning

confidence: 82%

“…The evaluation of dentin permeability is performed by calculating the hydraulic conductance by method of fluid filtration (12). This method is the measurement of a fluid volume forced through a dentin barrier on a determined hydrostatic pressure for unit of area, time and/or pressure.…”

Section: Discussionmentioning

confidence: 99%

“…This method is the measurement of a fluid volume forced through a dentin barrier on a determined hydrostatic pressure for unit of area, time and/or pressure. The movement of an air bubble introduced by a syringe into the system indicates the amount of fluid that passes through the exposed dentin (12), allowing the measure to be repeated in the same specimen.…”

Section: Discussionmentioning

confidence: 99%

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Effect of an acid diet allied to sonic toothbrushing on root dentin permeability: an in vitro study

et al. 2010

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This study quantified alterations in root dentin permeability after exposure to different acid beverages. Twenty-five third molars were sectioned below the cementoenamel junction, the root segment was collected, and the pulp tissue was removed. The root segments were connected to a hydraulic pressure apparatus to measure the permeability of root dentin after the following sequential steps, with 5 specimens in each: 1) phosphoric acid etching for 30 s (maximum permeability), 2) root planning to create new smear layer, 3) exposure to different acid substances for 5 min (orange, cola drink, vinegar, white wine, lemon juice), 4) toothbrushing with sonic toothbrush for 3 min, 5) toothbrushing with sonic toothbrush plus dentifrice for 3 min. Considering step I as 100%, the data were converted into percentage and each specimen was its own control. Data were analyzed statistically by Kruskal-Wallis and Dunn's post test at 5% significance level. All acidic substances increased dentin permeability significantly after scraping (p<0.05). Toothbrushing after exposure to acid substances decreased dentin permeability and the association with dentifrice accentuated the decrease (p<0.05), except for the specimens treated with cola drink. Thus, it may be concluded that all tested acid fruit juices increased dentin permeability, and toothbrushing with or without dentifrice can decrease root dentin permeability after dentin exposure to acid diet.

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Section: Discussionmentioning

confidence: 82%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Effect of an acid diet allied to sonic toothbrushing on root dentin permeability: an in vitro study

et al. 2010

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“…15,16 Oxalate solutions or gels react with ionized calcium in dentin to form insoluble crystals of calcium oxalate. 17,18 Because of their ability to occlude the dentinal tubules, oxalate-based desensitizers are considered potent agents in the treatment of dentin sensitivity. 18 The calcium oxalate crystals formed into the dentinal tubules were shown to reduce the fluid conductance of dentin, 19,20 reducing the pain sensation.…”

Section: Introductionmentioning

confidence: 99%

Effects of Potassium Oxalate on Knoop Hardness of Etch-and-Rinse Adhesives

Silva

Malacarne-Zanon²,

Carvalho³

et al. 2012

Operative Dentistry

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Application of potassium oxalate to acid-etched dentin may interfere with the properties of adhesives that are subsequently applied to dentin. SUMMARYThe objective of this study was to determine whether the hardness of etch-and-rinse adhesives may be affected by the pretreatment of acid-etched dentin with potassium oxalate desensitizer. Unerupted human third molars were cut into crown segments by removing the occlusal enamel and roots. The pulp chamber of these crown segments was connected to a syringe barrel filled with phosphate-buffered saline so that the moisture of dentin was maintained during the bonding procedures. Three etch-and-rinse adhesives-two two-step systems (Adper Single Bond 2 [SB], One-Step [OS]) and one three-step system (Adper Scotchbond Multi-Purpose [MP])-were applied to acid-etched dentin that had been treated (experimental groups) or not (control groups) with potassium oxalate (BisBlock). The Knoop hardness (KHN) of adhesives was taken at different sites of the outer surface of the adhesive-bonded dentin. The KHN of the three tested adhesives applied to acid-etched dentin

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“…A sensação dolorosa é resultado da estimulação da dentina exposta através do movimento rápido do fluido para dentro ou para fora dos túbulos dentinários. O deslocamento do fluido no interior dos túbulos determina uma alteração na pressão intrapulpar que estimula as terminações nervosas localizadas na interface dentina-polpa e, assim, resulta na geração de dor (BRÄNNSTRÖM, 1966(BRÄNNSTRÖM, , 1972(BRÄNNSTRÖM, , 1986 GREENHILL;PASHLEY, 1981;PASHLEY et al, 1978PASHLEY et al, , 1984PASHLEY;GALLOWAY, 1985 O uso de dentifrícios dessensibilizantes também tem demonstrado resultados positivos em estudos in vivo (DOCIMO et al, 2009;QUE et al, 2010;SILVERMAN et al, 1996). Dentre as diferentes formulações existentes, os dentifrícios com a tecnologia Pro-Argin, baseada em arginina e carbonato de cálcio, oferece a possibilidade de sua aplicação por profissionais sendo uma ótima opção de tratamento da hipersensibilidade dentinária no consultório (CUMMINS, 2011;TSAI;PLACA;PANAGAKOS, 2012).…”

Section: Introductionunclassified

Influência dos tratamentos dessensibilizantes associados ao laser de diodo na permeabilidade dentinária

Sanches¹

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Effects of the degree of tubule occlusion on the permeability of human dentine in vitro

Cited by 125 publications

References 9 publications

Effect of an acid diet allied to sonic toothbrushing on root dentin permeability: an in vitro study

Effect of an acid diet allied to sonic toothbrushing on root dentin permeability: an in vitro study

Effects of Potassium Oxalate on Knoop Hardness of Etch-and-Rinse Adhesives

Influência dos tratamentos dessensibilizantes associados ao laser de diodo na permeabilidade dentinária

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