Oklahoma Pit and Fissure Sealants State Practice Exam

Which arch tends to have a higher prevalence of caries, maxillary or mandibular?

1. Maxillary

2. Mandibular

3. Both are equal

4. Depends on age

The correct answer is: Mandibular

The mandibular arch tends to have a higher prevalence of caries compared to the maxillary arch, particularly in certain populations and age groups. This can be attributed to several factors, including differences in saliva flow, dietary habits, and oral hygiene practices that may vary between the two arches. The mandibular teeth, especially the molars, are often less accessible for brushing and can be more difficult to clean effectively, leading to the accumulation of plaque and a higher incidence of carious lesions. Additionally, the position of mandibular teeth may make them more susceptible to occlusal stress and wear, which may also contribute to the risk of caries. Age can also influence the prevalence of caries, as younger individuals may have different cavity risks due to dietary changes, oral hygiene habits, and developmental factors. However, the trend observed across various studies points toward a general increased caries rate in the mandibular arch overall. Understanding these dynamics is essential for dental professionals when designing preventive dental care and treatment strategies.