## **Core Concept**
Brudevold's solution is related to fluoride application in dentistry, specifically for the prevention of dental caries. It is a type of fluoride solution used for topical application.

## **Why the Correct Answer is Right**
Brudevold's solution was introduced in 1963. This solution is significant in the field of dentistry for its role in providing a controlled and effective method of fluoride delivery to teeth, thereby helping in the prevention of dental caries. The solution's introduction marked an advancement in preventive dentistry.

## **Why Each Wrong Option is Incorrect**
- **Option A:** 1955 - This is too early for the introduction of Brudevold's solution.
- **Option B:** 1970 - This is too late; the solution was already introduced by 1963.
- **Option D:** 1980 - This is also too late; the correct year is 1963.

## **Clinical Pearl / High-Yield Fact**
A key point to remember is that Brudevold's solution is an important tool in preventive dentistry, specifically for fluoride application. The year 1963 is crucial for this topic, as it marks the introduction of this solution.

**Correct Answer: C. 1963**