DANB General Chairside Practice Test

What type of lesions are classified as Class I carious lesions?

1. A) Interproximal lesions

2. B) Occlusal and grooves of posterior teeth

3. C) Lesions at the gingival margin

4. D) Root caries

The correct answer is: B) Occlusal and grooves of posterior teeth

Class I carious lesions refer specifically to caries that develop on the occlusal surfaces and in the pits and fissures of posterior teeth. This classification focuses on areas that are more susceptible to decay due to their anatomy, which allows for the accumulation of plaque and subsequent cavity formation. The occlusal surfaces are where the teeth meet when chewing, and these areas often contain grooves and pits that are prone to retain food particles and plaque, making them vulnerable to carious lesions. Recognizing Class I lesions is crucial for early intervention and management to prevent further progression of dental caries. Other types of lesions mentioned, such as interproximal lesions, gingival margin lesions, and root caries, belong to different classifications in carious lesions, thus distinguishing them from Class I. This classification system helps dental professionals accurately diagnose and implement appropriate treatment plans based on the specific location and nature of the carious lesions.