Publication:
Effect of dentinal fluid on enamel permeability under simulated pulpal pressure

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Issued Date

2019

Resource Type

Article

File Type

application/pdf

ISSN

39969

DOI

10.1016/j.archoralbio.2018.12.010

Other identifier(s)

2-s2.0-85059612458

Rights Holder(s)

มหาวิทยาลัยศรีนครินทรวิโรฒ

Bibliographic Citation

Archives of Oral Biology. Vol 99, (2019), p.58-65

Suggested Citation

Chinajitphan N., Chunhacheevachaloke E., Ajcharanukul O. Effect of dentinal fluid on enamel permeability under simulated pulpal pressure. Archives of Oral Biology. Vol 99, (2019), p.58-65. doi:10.1016/j.archoralbio.2018.12.010 Retrieved from: https://hdl.handle.net/20.500.14740/5429

Title

Effect of dentinal fluid on enamel permeability under simulated pulpal pressure

Author(s)

Chinajitphan N.
 Chunhacheevachaloke E.
 Ajcharanukul O.

Abstract

Objective: To determine the effect of pulpal perfusion on the fluid flow through human tooth after different treatments at the enamel surface. Changes in mineral density along with fluid flow rate were also analyzed before and after etching. Design: The experiments were carried out on 97 human premolars. Ringer's solution and distilled water (DW) were applied under pressure of 20 mm Hg to the pulpal cavity of tooth crowns in the Ringer's-perfused and water-perfused groups respectively. Fluid flow through each specimen was recorded before and 0, 30, 60, 180 min after treatments at the enamel surface. The treatments included DW, 0.2% sodium fluoride solution, 1.23% acidulated phosphate fluoride gel (APF), 2.26% fluoride varnish (FV), 37% phosphoric acid gel (Etch) and artificial saliva (AS). Mineral density of the enamel was evaluated using micro-computed tomography. Results: In water-perfused group, fluid flow rates recorded after etching were significantly increased (p = 0.005) with the significant reduction of mineral density (p = 0.018) from baseline. A significant negative correlation was found (r = -0.78, p = 0.015). After FV, the percentage reduction from baseline was significant at 180 min (p = 0.003). In Ringer's-perfused group, etching immediately produced the greatest mean flow rate and subsequently returned to the baseline within 60 min after treatment (p < 0.001). There were approximately 40, 55, and 63% reductions of flow rates within 60 min after AS, APF and FV respectively. Conclusion: Under simulated pulpal pressure, enamel fluid involves the process of enamel remineralization, particularly after etching. © 2018 Elsevier Ltd

Subject(s)

Anticaries agent
 Fluoride
 Fluoride varnish
 Phosphoric acid
 Saliva substitute
 Sodium fluoride
 Dental procedure
 Dentinal fluid
 Drug effect
 Enamel
 Human
 Metabolism
 Micro-computed tomography
 Pathology
 Permeability
 Pharmacology
 Premolar tooth
 Surface property
 Tooth pulp
 Bicuspid
 Cariostatic Agents
 Dental Enamel
 Dental Pulp
 Dentinal Fluid
 Fluorides
 Fluorides, Topical
 Humans
 Permeability
 Phosphoric Acids
 Ringer's Solution
 Saliva, Artificial
 Sodium Fluoride
 Surface Properties
 Tooth Remineralization
 X-Ray Microtomography

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URI

https://hdl.handle.net/20.500.14740/5429

Collections

Scopus: Year 1983-2021

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