Ew, "GROSS!" (anatomy)
BONES, thugs-n-harmony
Dental Development & Eruption
Will I need braces?
Dear Santa,
Dolphin for MTM please
100
When does the dental lamina begins to develop?
6th week IU
100
Name 2 types of bone formation.
Intramembranous and Endochondral bone formation
100
What is the most favorable eruption sequence in the permanent maxillary dentition?
61245378
100
Which type of Baume Occlusion is more ideal: Baume type I or Baume type II?
Baume type I. ~2/3rds of primary dentition display generalized spacing.
100
What measure of in Steiner Analysis determines AP position of maxilla relative to cranial base?
SNA
200
The remnants of Hertwig's epithelial root sheath persist as this.
Rests of Malaise
200
The maxilla develops with what type of bone formation.
intramembranous bone formation
200
Calcification of the first primary tooth begins at what fetal month?
4th fetal month (central incisors)
200
Distal step primary molar relationship usually results in what type of occlusion in permanent dentition?
Class II (Once a Class II, Always a Class II).
200
Steep mandibular plane angles are frequently associated with which type of facial growth pattern?
Vertical or dolicofacial
300
A pregnant woman is having a toothache. What will you recommend for pain? A) Aleve B) Aspirin C) Acetaminophen D) Ibuprofen
Acetaminophen (Tylenol)
300
Name 2 facial components that have a cartilaginous precursor.
Cranial base and Condyle of mandible
300
What is the sequence of calcification/mineralization of primary teeth?
ADBCE (14, 15, 16, 17, 18 weeks)
300
75% of children have this primary molar relationship. A) Mesial step B) Flush terminal plane C) Distal step
B) Flush terminal plane. The majority will shift into Cl I permanent molar, but a significant number stay end-on or shift to full Cl II permanent molars.
300
In the DOWN analysis, a large negative angle of convexity would indicate skeletal Class I, skeletal Class II, or skeletal Class III?
Skeletal Class III. Angle of convexity measures the angle created from N to A-point and from Pog to A-point. It reveals the convexity or concavity of the skeletal profile. Avg= 0 degrees, Range -8.5-10 degrees. A positive or increased angle shows a prominent maxillary base compared to mandible or a retrognathic profile which a negative or decreased angle shows a prognathic profile.
400
Dens evaginatus is an anomaly resulting from problems in this stage of dental development.
Morphodifferentiation (anomalies of size and shape)
400
Female growth spurt starts at approximately what age?
10.5 years (within 0.5 years = accepted answer); peaks at 14-18 months (~12-13 yrs old) and is complete at 13.5-14 yrs old. Male growth spurt 12.5-13.5 yrs old, peaks in 18-24 months (14 to 16 years) and is complete by about 17-18 yrs of age.
400
Put the following frequently missing teeth in order from most frequent to least: Third molars, Maxillary 2nd Premolars, Mandibular 2nd Premolars, and Maxillary Laterals.
1) 3rd molars (10-25%) 2) Mandibular 2nd premolars (3.4%) 3) Maxillary Laterals (2.2%) 4) Maxillary 2nd Premolars (~0.85%)
400
Where is the primate space in the maxillary and manidibular arch?
Maxillary arch = mesial to maxillary primary canines. Mandibular arch = distal to mandibular primary canines
400
What 3 measurements make up the Tweed Analysis?
FMA, FMIA, IMPA
500
The greater cornu and inferior part of the hyoid bone were absent at birth. Which of the following embryonic structures was affected? A) Maxillary prominence B) Mandibular prominence C) Second pharyngeal arch D) Third pharyngeal arch
D) third pharyngeal arch
500
Premature fusion of cranial sutures can be found in all of following syndromes EXCEPT: A) Crouzon syndrome B) Carpenter syndrome C) Pfeiffer syndrome D) Cleidocranial dysplasia
D) Cleidocranial dysplasia --> has DELAYED closure of sutures and fontanels (wormian bones), DELAYED of failure of exfoliation of primary teeth, DELAYED eruption of permanent teeth, high arched palate with sub mucous cleft or complete cleft, supernumerary teeth and clavicular defect. * Apert syndrome is part of the craniosynostosis family.
500
Name 4 syndromes associated with hypodontia.
1) Ectodermal dysplasia 2) Crouzon syndrome 3) Non-syndromic cleft lip/palate 4) Achondroplasia 5) Achondroplasia 6) Ellis-van Creveld 7) Incontinentia pigmenti 8) Orofacialdigital syndrome 9) Hallerman-Strieff syndrome 10) Rieger syndrome 11) Seckel syndrome 12) Williams syndrome
500
Mesial drift of 1st permanent molar into Leeway space after 2nd primary molar exfoliates is referred to as what?
Late Mesial Shift
500
Name the 2 cephalometric measurements that help determine facial growth direction.
Mandibular plane angle (FMA), y-axis to cranial base, lower face height.
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