مرکز منطقه ای اطلاع رساني علوم و فناوري - Histologic properties of the pulp and dentin in primary teeth

Abstract :

Many teeth, especially the primary teeth are lost prematurely despite advancements in the prevention of dental caries and increasing recognition of the importance of natural dentition. These losses may lead to malocclusion or temporary or permanent esthetic, phonetic and functional problems. Preservation of the integrity and health of oral tissues is the main target in dental pulp treatments. Although the dental pulp is similar to other loose connective tissues of the body, it differs in some ways. The dentin and the pulp structure in primary teeth are somewhat different from those found in permanent teeth. For example dentin permeability in primary teeth is greater due to a thinner dentin structure, wider dentinal tubules and presence of wide canals in the dentin. Also changes in the vascular, cellular and neurologic components occur in the pulp of the deciduous tooth as a result of physiologic root resorption, a phenomenon which renders the histological picture different between primary and permanent tooth pulps. Recognition of these differences is crucial for accurate analysis of pulpal diseases and determining treatment modalities.