INBDE Pediatrics Exam Questions With 100% Correct Answers, Latest Updated 2024/2025 (VERIFIED)

Odontogenesis Stages - Correct Answer-1. Initiation (6 Weeks) 2. Bud (8 Weeks) 3. Cap (9 Weeks) 4. Bell (11 Weeks) 5. Erupted Tooth (14 Weeks) Initiation Stage - Correct Answer-6 Weeks in Utero Oral Epithelium - Correct Answer-1. Outer Layer 2. Derived from ECTODERM Dental Lamina - Correct Answer-1. Thickening of Oral Epithelium 2. First evidence of Tooth Formation 3. Derived from ECTODERM Ectomesenchyme - Correct Answer-1. Signals overlying Oral Epithelium to differentiate into Dental Lamina 2. Derived from Neural Crest 3. Does NOT include Enamel Organ Bud Stage - Correct Answer-8 Weeks in Utero Initiation Defects - Correct Answer-1. Congenitally Missing Teeth 2. Supernumerary Teeth Dental Placode - Correct Answer-Proliferating Buds of Dental Lamina Where do all Primary Teeth and Permanent Molars originate from? - Correct AnswerDental Lamina Where do all Deciduous Teeth originate from? - Correct Answer-Develop off the Bud Condensing Mesenchyme - Correct Answer-Part of Bud Stage Bud Stage Defects - Correct Answer-1. Congenitally Missing Teeth 2. Supernumerary Teeth Cap Stage - Correct Answer-1. Enamel Organ 2. Dental Papilla 3. Dental Follicle 4. 9 Weeks in Utero INBDE Pediatrics Exam Questions With 100% Correct Answers Latest 2024/2025 (VERIFIED) Enamel Organ - Correct Answer-1. OEE 2. IEE 3. Stellate Reticulum (Inside boundary set by OEE and IEE) 4. Enamel Knot (Determine where the Cusps will be) 5. Give rise to AMELOBLASTS Dental Papilla - Correct Answer-1. Becomes DENTIN and PULP 2. Originates from Condensing Mesenchyme 3. Will give rise to ODONTOBLASTS and CENTRAL CELLS Dental Follicle - Correct Answer-1. SURROUNDS Developing Tooth 2. Gives rise to CEMENTOBLASTS, ODONTOBLASTS and FIBROBLASTS Cap Stage Defects - Correct Answer-1. Cysts 2. Odontoma 3. Gemination 4. Fusion 5. Dens in Dente Bell Stage (Histodifferentiation) - Correct Answer-1. Transformation of Layers into Different Cell Types 2. IEE - Ameloblasts 3. Dental Papilla - Odontoblasts 4. 11 Weeks in Utero Bell Stage (Histodifferentiation) Defects - Correct Answer-1. Amelogenesis Imperfecta 2. Dentinogenesis Imperfecta Bell Stage (Morphodifferentiation) - Correct Answer-1. Shape and Size of tooth is determined 2. 11 Weeks in Utero Bell Stage (Morphodifferentiatin) Defects - Correct Answer-SIZE and SHAPE Defects such as Peg Laterals and Macrodontia Apposition Stage - Correct Answer-1. AMELOBLASTS secrete ENAMEL Matrix (Amelogenin) 2. ODONTOBLASTS secrete DENTIN Matrix (Collagen) 3. 14 Weeks in Utero Cervical Loop - Correct Answer-1. Where IEE and OEE meet 2. Elongates downward to form Roots Hertwig's Epithelial Root Sheath - Correct Answer-1. Extension of Cervical Loop 2. Stimulates Odontoblasts to secrete Radicular Dentin Epithelial Rests of Malassez - Correct Answer-Remnants of HERS Reduced Enamel Epithelium - Correct Answer-1. IEE + OEE 2. Eventually becomes the Junctional Epithelium Apposition Stage Defect - Correct Answer-1. Enamel Hypoplasia 2. Enamel Pearls 3. Concrescence Maturation Stage - Correct Answer-1. Deposition of Enamel and Dentin 2. Calcification How long does maturation take for Primary Teeth Crowns? - Correct Answer-2 Years How long does maturation take for Permanent Teeth Crowns? - Correct Answer-4-5 Years Where does calcification begin and end? - Correct Answer-Starts at cusp tip and moves cervically Maturation Stage Defects - Correct Answer-1. Enamel Hypomineralization 2. Fluorosis 3. Tetracycline Staining What determines how major a defect will be? - Correct Answer-When the defect occurs Calcification Dates of Primary Teeth Crowns - Correct Answer-1. A - 14 Weeks 2. D - 15 Weeks 3. B - 16 Weeks 4. C - 17 Weeks 5. E - 18 Weeks Calcification Dates of Permanent Teeth Crowns - Correct Answer-1. 6 - Birth 2. 1, L2, 3 - 6 Weeks 3. U2 - 12 Weeks 4. 4 - 18 Weeks 5. 5 - 24 Weeks 6. 7 - 30 Weeks Eruption Sequence of Primary Teeth - Correct Answer-Remember nxi 1. LA (6mo) 2. UA (8mo) 3. UB (9mo) 4. LB (10mo) 5. UD (13mo) 6. LD (14mo) 7. UC (16mo) 8. LC (17mo) 9. LE (23mo) 10. UE (26mo) Eruption Sequence of Permanent Teeth - Correct Answer--Remember MAIN (Start with "I") 1. MD M1 (6yrs) 2. MX M1 (6yrs) 3. MD CI (6yrs) 4. MX CI (7yrs) 5. MD LI (7yrs) 6. MX LI (8yrs) 7. MD C (9yrs) 8. MD PM1 (10yrs) 9. MX PM1 (10yrs) 10. MX PM2 (10.5yrs) 11. MD PM2 (11yrs) 12. MX C (11yrs) 13. MD M2 (11yrs) 14. MX M2 (12yrs) 15. MD M3 (17yrs) 16. MX M3 (17yrs) Eruption Patterns - Correct Answer-1. MD before MX 2. Females are FASTER than Males 3. Roots usually 2/3 at ERUPTION 4. Takes 2-3yrs to FULLY DEVELOP 4. Teeth should erupt in PAIRS Supernumerary Teeth - Correct Answer-1. Occur in 3% 2. Mesiodens is MOST COMMON 3. May BLOCK NORMAL ERUPTION Mesiodens - Correct Answer-Supernumerary tooth between two permanent MX Incisors What permanent teeth are most likely to be congenitally missing? - Correct Answer-1. MD 2nd PM 2. MX LI 3. MX 2nd PM What primary teeth are most likely to be congenitally missing? - Correct Answer-MX Primary Lateral Incisors What primary teeth are most likely to be ankylosed? - Correct Answer-MD Primary 2nd Molar Anomalies of Teeth Size - Correct Answer-1. Microdontia (Bud Stage) 2. Macrodontia (Bud Stage) 3. Fusion (Cap Stage) 4. Gemination (Cap Stage) Microdontia - Correct Answer-1. Small Teeth 2. Bud Stage Defect 3. Generalized/True (Down Syndrome, Pituitary Dwarfism, Ectodermal Dysplasia) 4. Localized/False (Peg-Laterals) Macrodontia - Correct Answer-1. Large Teeth 2. Bud Stage Defect 3. Generalized/True (Pituitary Gigantism or Pineal Hyperplasia with Hyperinsulinism) 4. Localized/False (Hemifacial Hyperplasia) Fusion - Correct Answer-1. One Crown but Two Roots 2. Cap Stage Defect 3. PRIMARY is MORE COMMON 4. ANTERIOR is MORE COMMON 5. Tooth Count is ONE LESS Gemination - Correct Answer-1. One Root but Two Crowns 2. Cap Stage Defect 3. Tooth Count is NORMAL Anomalies of Teeth Shape - Correct Answer-1. Dens Evaginatus 2. Dens Invaginatus 3. Taurodontism 4. Dilaceration Den Evaginatus - Correct Answer-1. An Extra Cusp that contains Enamel, Dentin and Pulp 2. COMMON on MD PM and Incisors 3. Called "Talon Cusp" if found on LINGUAL of Anteriors Den Invaginatus (Dens in Dente) - Correct Answer-1. Caused by INVAGINATION of IEE 2. Caries can progress VERY QUICKLY through tunnel 3. MOST COMMON in Permanent LI 4. Radiograph is needed to diagnose Taurodontism - Correct Answer-1. VERTICALLY ELONGATED Pulp Chamber 2. SHORT Roots 2. Linked to Type IV Amelogenesis Imperfecta Dilaceration - Correct Answer-1. Abnormal BEND in the ROOT 2. Usually due to TRAUMATIC INJURY in Primary Tooth Anomalies of Tooth Structure - Correct Answer-1. Enamel Hypoplasia 2. Enamel Hypocalcification 3. Amelogenesis Imperfecta 4. Dentinogenesis Imperfecta 5. Dentin Dysplasia 6. Regional Odontodysplasia