Arkray, Inc.

Isao Fukuta

Naho Suzuki

Eiji Nishinaga

Akira Uchiyama

Akio Okubo

Seiji Satake

Riichi Maki

Kouichi Saito

Takashi Hama

Tetsu Fukasawa

Provided is a method for measuring a color change of an oxidation-reduction indicator, which method is applicable to measurement of the cariogenic bacterial count and the like. A color change of an oxidation-reduction indicator is measured by a method for measuring a color change of an oxidation-reduction indicator, the method comprising reacting a test reagent with a test sample and measuring a color change, wherein the test reagent contains an oxidation-reduction indicator, an oxidation-reduction promoter, and a halogen salt.

Method for measuring color change of oxidation-reduction indicator

A method of determining the condition of the oral cavity in a subject is provided by using an analytical tool comprising the following (A), (B), and (C):

Analytical tool and method for determining a condition of an oral cavity

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Kyoto, Japan

Isao Fukuta