Knutson’s technique of fluoride application is done the following years:
**Core Concept**
Knutson's technique is a method of topical fluoride application used in pediatric dentistry to prevent dental caries. This technique involves applying fluoride gel or foam to the teeth of children, typically at home, to promote oral health and prevent tooth decay.
**Why the Correct Answer is Right**
Knutson's technique is often recommended for children between the ages of 9 and 13 years old. This age range is chosen because it allows for the application of fluoride to the permanent teeth that are erupting during this period. The fluoride helps to strengthen the enamel of these teeth, making them more resistant to decay. This technique is an important part of preventive dentistry and is often used in combination with other measures, such as regular brushing and flossing.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because Knutson's technique is not typically recommended for infants or young children, as their teeth are still developing and are not yet susceptible to decay.
**Option B:** This option is incorrect because Knutson's technique is not typically recommended for adults, as they have already developed most of their permanent teeth and are less likely to benefit from this type of fluoride application.
**Option C:** This option is incorrect because while fluoride application is an important part of preventive dentistry, Knutson's technique is not typically recommended for children under the age of 9 or over the age of 13.
**Clinical Pearl / High-Yield Fact**
It's essential to note that children should receive regular dental check-ups and fluoride applications as part of their preventive oral health care. This can help to prevent dental caries and promote a healthy smile.
**Correct Answer: C. 13 years**