How does North Carolina law define dental practice?

North Carolina law defines dental practice as encompassing the diagnosing and treating of dental diseases and conditions. This definition reflects the comprehensive nature of dental care, which goes beyond mere preventive measures or aesthetic treatments. It emphasizes that dental practice involves a thorough understanding of oral health and the capability to manage various conditions such as cavities, gum disease, and other dental issues.

The focus on diagnosing and treating reinforces the role of licensed dental professionals in assessing patient health and developing appropriate treatment plans. This aligns not just with the clinical skills required of dentists but also with the broader responsibilities they have in ensuring overall patient welfare.

The other options are too narrow in scope: preventive care alone does not capture the entirety of what dentists do, neither does the administration of dental insurance, which is more about the business aspect rather than clinical practice. Similarly, providing only non-invasive aesthetic treatments overlooks the integral part of addressing dental diseases, which is fundamental to dental care. Thus, the definition as stated in the correct answer highlights the essential duties and responsibilities that dental professionals uphold in their practice.