PMID: 9185049Jun 1, 1997Paper

Enhanced permeability of acid-etched or ground dental enamel

The Journal of Prosthetic Dentistry
M KuharN Funduk

Abstract

Acid etching creates retentive microcraters on enamel surfaces. Designing of a partial denture often involves reshaping the supporting and retentive teeth by grinding the enamel. Unfortunately, both these procedures damage the enamel surface. In vivo such surface damage takes several months to recover. This study evaluated the effect of 1-minute etching, prolonged etching, and grinding on the permeability of dental enamel for water-soluble molecules. With the electron paramagnetic resonance and a two-chamber diffusion cell, the influence of etching and grinding on the diffusion of spin label molecules through the enamel was studied quantitatively. The enamel permeability was measured in 30 sound enamel samples, of which 10 samples were exposed to 1-minute etching with 37% phosphoric acid, 10 samples were etched for 5 minutes, and 10 samples were ground with a diamond bur. All procedures significantly increased the permeability of dental enamel. These results demonstrate that in vivo the acid-etched and ground dental enamel surfaces are less protected and consequently, unless the tooth is properly protected, are more susceptible to carious lesions. Therefore ground or accidentally etched enamel should be protected.

Citations

Nov 26, 2009·Microscopy Research and Technique·Maria Angélica Hueb De Menezes OliveiraMaria Cristina Borsatto
Jan 18, 2006·Journal of Oral Rehabilitation·H DevlinD Boston
Sep 16, 2015·L' Orthodontie française·Michael KnöselStéphane Renger
Aug 2, 2017·Journal of Investigative and Clinical Dentistry·Moufida AbufarwaPeter H Buschang
Feb 10, 2018·The Journal of Contemporary Dental Practice·Sultan KelesOrhan Sezen
Apr 5, 2014·Journal of Applied Biomaterials & Functional Materials·Angelica BertacciStefano Chersoni
Jul 6, 2010·Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine·Paola Fattibene, Freddy Callens

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