Oklahoma Pit and Fissure Sealants State Practice Exam

Which type of tooth is most commonly affected by pit and fissure caries?

1. Incisors

2. Canines

3. Premolars

4. Molars

The correct answer is: Molars

The correct choice is based on the understanding of tooth anatomy and the prevalence of dental caries in specific tooth types. Molars have a unique tooth structure characterized by multiple pits and fissures, which create an environment conducive to plaque accumulation and bacterial growth. These grooves and depressions are often difficult to clean adequately during brushing, making molars more susceptible to caries, particularly pit and fissure caries. In contrast, while incisors, canines, and premolars can also develop caries, they generally have smoother surfaces with fewer pits and fissures. The anatomy of molars, combined with their functional role in chewing and grinding food, means they are at a higher risk for decay due to the increased likelihood of food trapping and plaque retention in these areas. This anatomical and functional context underlines why molars are identified as the tooth type most commonly affected by pit and fissure caries.