INBDE (Integrated National Board Dental Examination) Practice Exam

Which type of periodontitis primarily affects children's first permanent molars and incisors?

1. Chronic periodontitis

2. Localized aggressive periodontitis

3. Generalized aggressive periodontitis

4. Necrotizing ulcerative periodontitis

The correct answer is: Localized aggressive periodontitis

Localized aggressive periodontitis is the most common type of periodontitis that affects children's first permanent molars and incisors. This is because it mainly affects specific teeth and not the entire mouth like other types of periodontitis do. Chronic periodontitis primarily affects adults and often affects all teeth, not just specific ones like in localized aggressive periodontitis. Generalized aggressive periodontitis is similar to localized aggressive periodontitis, but instead it affects multiple teeth rather than just specific ones. Necrotizing ulcerative periodontitis is a more severe and less common type of periodontitis that is characterized by the death of gum tissue and can affect any tooth, not just specific ones. Therefore, the other options are incorrect because they do not specifically target children's first permanent molars and incisors like localized aggressive periodontitis does.