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Viva Question and Answers Related to the Calcification and Eruption of Teeth

Here are 30 viva questions and answers related to the calcification and eruption of teeth:

  1. What is dental calcification?
    • Dental calcification is the process by which mineralized tissues, such as enamel and dentin, form in the developing teeth.
  1. Which cells are responsible for enamel formation?
    • Ameloblasts are responsible for enamel formation.
  1. What is dentin and how is it formed?
    • Dentin is a hard tissue beneath the enamel, formed by odontoblasts.
  1. Explain the stages of tooth development.
    • Tooth development includes bud, cap, bell, and crown stages.
  1. Which mineral is predominantly found in enamel?
    • Hydroxyapatite is the main mineral found in enamel.
  1. Define odontogenesis.
    • Odontogenesis is the process of tooth development.
  1. What is the role of amelogenin in enamel formation?
    • Amelogenin is a protein that regulates the growth of enamel crystals during tooth development.
  1. Explain the process of dentinogenesis.
    • Dentinogenesis is the formation of dentin, involving the differentiation and activity of odontoblasts.
  1. What are the factors influencing tooth eruption?
  1. How does the eruption sequence of primary teeth differ from permanent teeth?
    • Generally, primary teeth erupt earlier than permanent teeth.
  1. What is the eruption pathway of a tooth?
    • The tooth erupts through the alveolar bone, gingiva, and eventually into the oral cavity.
  1. Explain the role of eruption forces in tooth movement.
    • Eruption forces result from the pressure exerted by the developing tooth root, pushing it towards the oral cavity.
  1. What is the significance of the dental lamina in tooth development?
    • The dental lamina is a band of epithelial tissue that gives rise to tooth buds during early development.
  1. How is the eruption of permanent teeth coordinated with the resorption of primary teeth?
  1. Discuss the role of nerves in tooth eruption.
    • Nerves play a role in sensing pressure and guiding the eruption process.
  1. What is the critical period for tooth calcification?
    • Tooth calcification mainly occurs during the prenatal and early postnatal periods.
  1. How do disturbances in ameloblast function affect enamel formation?
    • Disturbances in ameloblast function can result in enamel hypoplasia or hypocalcification.
  1. What is the significance of the gubernacular canal in tooth eruption?
    • The gubernacular canal provides a pathway for the eruption of the tooth through the bone.
  1. How does malnutrition impact tooth development?
  1. Discuss the role of parathyroid hormone in tooth mineralization.
    • Parathyroid hormone regulates calcium and phosphate metabolism, influencing tooth mineralization.
  1. What is the difference between primary and secondary dentin?
    • Primary dentin forms before tooth eruption, while secondary dentin forms after eruption.
  1. Explain the term “tooth eruption chronology.”
    • Tooth eruption chronology refers to the typical order and timing of tooth eruption.
  1. How does the eruption process differ in the maxilla and mandible?
    • Generally, teeth erupt earlier in the mandible compared to the maxilla.
  1. What are the effects of systemic diseases on tooth development and eruption?
    • Systemic diseases can disrupt tooth development and eruption, leading to abnormalities.
  1. Discuss the role of the dental follicle in tooth eruption.
  1. How do hormonal changes during puberty affect tooth eruption?
    • Hormonal changes can influence the rate of tooth eruption during puberty.
  1. What is the significance of the eruption cyst in tooth eruption?
    • An eruption cyst may occur when the enamel is about to break through the gum, causing a bluish bulge.
  1. How does fluorosis affect tooth development?
    • Fluorosis, caused by excessive fluoride intake, can lead to enamel hypomineralization.
  1. What is the role of bone remodeling in tooth eruption?
    • Bone remodeling allows the tooth to move through the alveolar bone during eruption.
  1. Explain the role of fibroblasts in the eruption process.
    • Fibroblasts contribute to the development of the periodontal ligament, aiding in tooth eruption and stabilization.

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