Oral Histo Mosabqa Tooth Development ByDr. Fathy October 25, 2025October 25, 2025 /15 0 Tooth Development The number of attempts remaining is 1 1 / 15 The cell-free zone is seen between: Enamel organ and dental lamina Dentin and enamel Inner enamel epithelium and dental papilla Enamel organ and dental follicle 2 / 15 The lateral dental lamina gives rise to: Vestibular lamina Permanent successors Permanent molars Deciduous teeth 3 / 15 Hyperdontia results from: Enamel pearl formation Failure of ERSH Reduced enamel epithelium Overactivity of dental lamina 4 / 15 Which structure induces odontoblast differentiation? Stellate reticulum Outer enamel epithelium Dental sac Inner enamel epithelium 5 / 15 Which stage shows the first deposition of dentine? Apposition stage Late bell stage Early bell stage Cap stage 6 / 15 The enamel organ is mainly responsible for: Dentin formation Pulp formation Enamel formation Cementum formation 7 / 15 Accessory root canals are caused by: Fusion of ERSH extensions Hyperactivity of dental lamina Pressure on ameloblasts Early degeneration of ERSH 8 / 15 The function of stratum intermedium is: Initiates enamel knot Supplies alkaline phosphatase Acts as cushion Forms dentin 9 / 15 The epithelial component of the tooth germ is known as: Dental lamina Enamel organ Dental papilla Dental sac 10 / 15 The Hertwig’s epithelial root sheath is derived from: Inner enamel epithelium only Stratum intermedium Inner and outer enamel epithelium Enamel cord 11 / 15 During morphodifferentiation, cessation of mitotic activity in the inner enamel epithelium determines: The number of roots The shape of the tooth crown The pattern of enamel rods The onset of dentin mineralization 12 / 15 The reduced enamel epithelium forms after: Dentinogenesis Root formation Enamel completion Eruption 13 / 15 The enamel knot appears during which stage? Early bell stage Late bell stage Cap stage Bud stage 14 / 15 Which of the following best explains the formation of enamel pearls? Early degeneration of epithelial root sheath Differentiation of odontoblasts from dental sac cells Late disintegration of Hertwig’s epithelial root sheath Persistence of stratum intermedium during root formation 15 / 15 The epithelial rests of Serres are remnants of: Dental lamina Hertwig’s root sheath Dental papilla Enamel organ Your score is 0% Send feedback By WordPress Quiz plugin
