"Ghost teeth"
Localized arrest in tooth development
Cementum normal
Thin enamel
80% involve central incisors
No etiology
No inheritance pattern - Correct Answer Regional odontodysplasia
45X karyotype
Missing X chromosome
Females only
Near normal IQ
Sterile
Coartation of aorta
Webbed neck
Enamel hypoplasia - Correct Answer Turner syndrome
A disorder caused by disruption of the endochondral bone formation
A disorder caused by disruption of intramembranous bone formation
A disorder caused by disruption of both forms of bone formation - Correct Answer Achondroplasia "dwarfism"
Cleidocranial dysplasia
Osteogenesis imperfecta
A smear amount of TP is recommended for what age?
Pea sized for what age? - Correct Answer Children under 2
Children 2-5
Abnormal skin pigmentation
Large cafe au lait macules ("coast of Maine")
Endocrine dysfunction
Multiple bones affected
Precocious puberty in females - Correct Answer McCune Albright Syndrome
"Polyostotic fibrous dysplasia"
Abortive attempt by single tooth to divide; bifid crown with single root and pulp chamber.
Clinical Dx- extra crown - Correct Answer Gemination
Amber-colored bulbous crowns
Normal roots
Permanent teeth appear normal but have thistle-tube shaped pulps - Correct Answer Dentin dysplasia type II
"coronal DD"
Anatomy of primary teeth - Correct Answer Thinner enamel and dentin
Larger pulp horns in relation to crown
Pulp horns closer to DEJ (esp. MB)
Enamel rods in gingival third extend in occlusal direction from DEJ
More prominent cervical constriction
Broader, flatter contact areas
Whiter in color, dentin is lighter
Shallower pits and fissures
,More narrow occlusal table
Aside from S. mutans which other bacteria is associated with caries (specifically smooth surface and rampant caries)
- Correct Answer Strep sobrinus
Associated with fissured tongue
Orofacial granulomatosis
Facial palsy (40%)
Labial swelling (80%)
Abnormal immune rxn - Correct Answer Melkersson-Rosenthal Syndrome
At what age should a child be weaned from bottle/sippy cup? - Correct Answer 1
At what age should children begin to receive fluoride supplements - Correct Answer After 6m
Autosomal recessive disorder
Chronic pulmonary disease
Pancreatic insufficiency
High sweat electrolyte concentrations
Chronic progressive disease - Correct Answer Cystic fibrosis
1/3200 live caucasian births
Abnormal CFTR protein
Increased calclulus with decreased caries
Increased risk for candidiasis
Bilateral manual postaxial polydactyly
40-50% cardiac defects
Hidrotic ectodermal dysplasia
Fusion of upper lip to max gingival margin
25% natal teeth - Correct Answer Chondroectodermal dysplasia (Ellis-van Creveld Syndrome)
Brachycephalic
Frontal and parietal bossing
Depressed nasal bridge
Delayed closure of sutures and fontanels
Supernumerary teeth
Delayed exfoliation
High arched palate with submucosal cleft or complete cleft - Correct Answer Cleidocranial dysplasia
Canine displacement buccally occurs how often? - Correct Answer 10%
Canine eruptive displacement palatally occurs in what percentage of the population?
Males or females greater? - Correct Answer 1-2%
Females 3x greater
Caused by HPV
Soft palate, tongue, labial mucosa
Pink/white papillary pedunculated nodule - Correct Answer Squamous papilloma
Caused by HPV 6, 11, 16, 18
May be infected at birth
Palate, tongue, oral floor, labial mucosa
Multiple coalescing pink nodules; cauliflower surface
Malignant potential - Correct Answer Condyloma acuminatum
Cervical-pull headgear is used for what purpose? - Correct Answer Optimizes molar distalization and extrusion
Decreases overbite (so avoid with dolichofacial patients)
A point moves 0.5-1mm distal, lower face height increases
, Children with LAP might also have a history of - Correct Answer Herpes labialis
Complete cleavage of single bud results in supernumerary mirror image tooth - Correct Answer Twinning
Concentrations of fluoride supplements
1) FL dentifrice
2) Fl rinse/ACT
3) Prevident 5000
4) NaF varnish
5) APF gel/foam - Correct Answer 1) 0.1% =1000 ppm
2) 0.05% NaF=220 ppm
3) 1.1% APF=5000 ppm
4)5% NaF=22500 ppm
5) 1.23% APF=12300 ppm
Congenital port wine stains (follows trigeminal nerve)
Ipsilateral gyriform calcifications of cerebral cortex
Intellectual disability
Seizures (gingival hyperplasia)
Pyogenic granulomas
Alveolar bone loss with gingival involvement - Correct Answer Sturge-weber angiomatosis
Daily juice intake should be limited to - Correct Answer 4-6 oz
Decreased circulating PMNs
Mutation in ELA2 gene
Several forms: cyclic, chronic, benign, chronic idiopathic, familial benign
Severe gingivitis with ulcerations
Early loss of primary teeth
Severe periodontal disease in permanent dentition
Diagnosed by CBC - Correct Answer Neutropenia
Mild 1000-1500/ml
Moderate 500-1000/ml
Severe <500ml
Delayed eruption
Osteomas of the jaw visible on pan
Supernumerary teeth - Correct Answer Gardner syndrome
Delayed eruption of permanent teeth
Delayed exfoliation of primary teeth
Midface hypoplasia
Enamel hypoplasia
Supernumerary teeth - Correct Answer Cleidocranial dysplasia
Dental lamina remnants found on the crest of the alveolar ridge - Correct Answer Dental lamina cysts
Developmental delay
spastic CP
Choreoathetosis- involuntary movements
Bizarre self-mutilating behavior
Absence of hypoxanthine-guanine - Correct Answer Lesch-Nyhan Syndrome
Diazepam dose and max - Correct Answer 0.2-0.3 mg/kg
max 10mg
Disruptions of which stage of tooth development would yield a tooth number problem? - Correct Answer Initiation
hypodontia, hyperdontia