Acid Profiles and pH of Carious Dentin in Active and Arrested Lesions

S. Hojo, M. Komatsu, R. Okuda, N. Takahashi, T. Yamada

研究成果: Article査読

84 被引用数 (Scopus)

抄録

Organic acids in caries lesions play important roles in initiation and progress of dental caries. We investigated relationships between clinical types of dentin caries and acid profile or pH in the lesions. Caries lesions in dentin from 76 permanent teeth were classified into active, arrested, situated beneath a restoration, and unclassified types. The pH of carious dentin was distinctly lower than that of sound dentin (p < 0.001). Carious dentin with a high percentage of lactate had a lower pH than that with a high percentage of acetate and propionate (p < 0.001). Dentin from active lesions showed a mean pH of 4.9, and the dominant acid was lactate (mean percentage, 88.2). In contrast, carious dentin from arrested lesions showed a higher pH, 5.7, with acetate and propionate as the dominant acids (mean percentages of acetate and propionate, 64.0 and 18.2, respectively). The acid profile (mean percentages of acetate and propionate, 54.0 and 27.7, respectively) and pH (mean 5.8) of carious dentin sampled from lesions beneath a restoration were similar to those of dentin from arrested lesions. This study showed a clear relationship between clinical classification of dentin caries and acid profile and pH, suggesting that both factors are important in dentin caries etiology.

本文言語English
ページ(範囲)1853-1857
ページ数5
ジャーナルJournal of dental research
73
12
DOI
出版ステータスPublished - 1994 12

ASJC Scopus subject areas

  • 歯科学(全般)

フィンガープリント

「Acid Profiles and pH of Carious Dentin in Active and Arrested Lesions」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル