15 Questions
What is the average size of the apical foramen in maxillary teeth?
0.4 mm
Where are accessory root canals numerous in the radicular pulp?
Apical third of the root
In which zone of the pulp does dentin formation occur?
Peripheral zone (odontogenic zone)
What is the mechanism of the formation of accessory root canals due to early degeneration of the epithelial root sheath of Hertwig?
Defect in the root with no dentin or cementum formed
What connects the pulp organs with the periapical tissue?
Apical foramen
During which phase of active eruption does the actual axial (vertical) movement of the tooth from its developmental position to its functional position in the occlusal plane inside the oral cavity occur?
Eruptive phase
Which type of tooth eruption involves the apical recession of gingival tissue exposing more tooth structure into the oral cavity?
Passive eruption
In which phase of tooth development do deciduous and permanent teeth germs found within the jaw bones before they begin to erupt?
Pre-eruptive phase
What is the pattern of pre-eruptive movements for permanent teeth during the Pre-eruptive phase?
No movement
What type of eruption does not involve tooth movement but occurs due to the apical recession of gingival tissue exposing more tooth structure into the oral cavity?
Passive eruption
What are the two major properties that distinguish dentin?
Sensitivity and continuous formation throughout life
What covers dentin in the crown and in the root?
Enamel and cementum respectively
Where are the odontoblasts aligned on the dentin surface?
Pulpal surface
What is the unit structure of dentin that houses odontoblastic processes?
Dentinal tubules
What is the color of dentin and how does it change with age?
Yellowish and darkens with age
Learn about the structure and morphology of dental pulp in this lecture by Dr. Fatma Adel Saad, Associate Professor of Oral Biology. Understand the composition of coronal pulp, radicular pulp, and the apical foramen.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
