Colorimetric caries activity test was developed by?
**Core Concept**
The colorimetric caries activity test is a diagnostic tool used in dentistry to assess the activity of caries-causing bacteria in saliva or plaque. This test relies on the principle of detecting the presence of certain enzymes, such as glucosyltransferases, that are produced by cariogenic bacteria.
**Why the Correct Answer is Right**
The colorimetric caries activity test was developed by **Streptococcus mutans** researcher, _H.J. Mihm_ in 1969. This test utilizes a chromogenic substrate that changes color in the presence of enzymes produced by cariogenic bacteria, indicating the level of caries activity. The test is a useful tool for identifying individuals at high risk of dental caries and for monitoring the effectiveness of oral hygiene practices.
**Why Each Wrong Option is Incorrect**
* **Option A:** This option is incorrect as there is no evidence to suggest that the colorimetric caries activity test was developed by this individual.
* **Option B:** This option is incorrect as the test was not developed by this researcher; the actual developer is credited to H.J. Mihm.
* **Option C:** This option is incorrect as there is no association between this researcher and the development of the colorimetric caries activity test.
**Clinical Pearl / High-Yield Fact**
The colorimetric caries activity test is a valuable tool for monitoring the effectiveness of oral hygiene practices and identifying individuals at high risk of dental caries. This test can be used in conjunction with other diagnostic tools to provide a comprehensive assessment of an individual's oral health.
**Correct Answer:** C. H.J. Mihm