Clinical relevance of Dental Anatomy, histology, Physiology and Occlusion

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For a restorative dentist, having a good understanding of the histology, physiology, and occlusal interaction of the teeth and supporting structures is crucial. Knowledge of the composition and relationships between enamel, dentin, pulp, and cementum is particularly important when treating dental caries. It's like having a roadmap to guide through the intricacies of restoration.

For an appropriate restorative dental treatment, the practitioner must possess an understanding of morphology, occlusion, esthetics, phonetics, and functions of these teeth to undertake such treatment. "So let's begin by sharpening our knowledge, starting with the dental anatomy or morphology of tooth structure.

Human Dentition (Overview)

The first set of teeth to be seen in the mouth is the primary or deciduous dentition (begins to form prenatally at about 14 weeks in utero and is completed postnatally at about 3 years of age). The first teeth in this dentition begin to appear in the oral cavity at the mean age of 6, and the last emerge at a mean age of 28 ± 4 months. The deciduous teeth remain intact (barring loss from dental caries or trauma ) until the age of 6 years.






Whereas, at about 6 years the first succedanoeus or permanent teeth begins to emerge in the oral cavity. This situation in the oral cavity having the deciduous and succedaneous (permanent dentition) begins the mixed dentition or transition period. The transition period lasts from about 6 to 12 years of age and ends when all deciduous dentition have been shed. The transition begins with the appearance of the first permanent molars, the loss of baby incisors, and the emergence of permanent incisors. The permanent teeth replaces the exfoliated teeth in a sequence of eruption that exhibit some variations.( read eruption and shedding time of permanent and deciduous dentition)



Comparison of the characteristics and anomalies of the deciduous and the permanent dentition





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