ABO Dentistry Exam Test bank, Answered With Complete Verified Solution, (All You Need To Pass Your ABO Exam 2023/2024

ABO Dentistry Exam Test bank,
Answered With Complete Verified
Solution, (All You Need To Pass Your
ABO Exam 2023/2024
FFrom where is the incus derived?

a. Meckel's cartilage
b. The first branchial arch
c. tuberculum impar
fa. Meckel's cartilage (<-- better ans, more specific)
b. The first branchial arch (oralso true)a
should be both
**
What can manifest itself as myositis?
a. Osteosarcoma
b. Condensing osteitis
c. Osteomyelitis
a. Osteosarcoma (per wonderful Andrew explanation)

c. osteomyelitis*
ncusf you buy a new ceph machine, but it's 5 mm greater distance between object
and film-what happens? (15.5 cm instead of 15.0cm)

"a. Slightly enlarged
b. Significantly enlarged
c. No change
"a. Slightly enlarged *
" Studies by Behrents from participants in the Bolton study indicate:"

a. Facial growth ceases at age 21
b. No antero-posterior changes or vertical changes in adult life
c. There is no increase in facial dimensions in adults
d. There is an increase in all facial dimensions in adults
d. There is an increase in all facial dimensions in adults (correct)
"
" What is the significance of a long posterior cranial base? (S-Ba)"

"a. Mandibular retrognathism
b. Anterior x-bite
c. Maxillary retrognathism
d. All of the above

,"a. Mandibular retrognathism
class 2
" "Proffit 4th ed pg214: Enlow's counterpart analysis
- anterior cranial base lengthening assoc w/ enlargement of nasomax. complex in
anterior direction
- spheno-occipital synchondrosis/complex growth assoc. w/ enlargement of
nasopharynx and ramus"
"Nasal epithelial cells (look up the exact type of cells)
What type of cells found in nasal cavity?"
"a. Goblet
b. Ciliated
c. Pseudostratified Colcorrelation
umnar
d. All of the above
"a. Goblet
b. Ciliated
c. Pseudostratified Columnar
d. All of the above (correct)"

Dr. Kahn stated that nasal epi cells are goblet, ciliated and pseudostratified columnar
A calcific barrier (As a cause of Root Resorption)
"a. Type of treatment is most important
b. Duration of treatment is more important than type
c. Can be prevented with straight wire appliances
d. None of the above"
"a. Type of treatment is most important
b. Duration of treatment is more important than type (correct)
c. Can be prevented with straight wire appliances
d. None of the above"
"Histologically, undermining resorption shows?
What are characteristics of hyalinization?
"
T/F hyalization is associated with a cell FREE zone
True

a. cell free zone "Proffit 4th ed
cell free zone is mentioned in Graber"
What does not happen in undermining resorption?
"a. Hyalinization
b. physiologic tooth movement
c. resorption in adjacent marrow spaces
d. Cell free zone in PDL
"
"a. Hyalinization
b. physiologic tooth movement *
c. resorption in adjacent marrow spaces

,d. Cell free zone in PDL
"
Undermining resorption is NOT associated with the following (choose all that
apply):

"a. frontal resorption
b. physiologic tooth movement
c. clear free cell zone
"a. frontal resorption (correct)
b. physiologic tooth movement (correct)
c. clear free cell zone" "ABO breakdown:
frontal resorption =response to light continuous force
"
Undermining resorption occurs:

a. in PDL
b. in medullary spacdes
c. is physiologic
d. none of the above
b. in medullary spaces
Undermining resorption during tooth movement is
a. The process by which osteoclasts remove bone on the compressed part of the
PDL.
b. The process by which osteoclasts remove bone on the stretched part of the
PDL.
c. The process by which osteoclasts attack the necrotic area of the PDL
d. None of the above
c. The process by which osteoclasts attack the necrotic area of the PDL (correct)
What is true about hyalinization? whats there whats not?
it occurs in the areas of undermining resorption
-Hyalinization (F-MON) fibroblast, macrophage, OC,
neutrophils
CELL FREE ZONE
What does not occur in hyalinization?

"a. physiologic tooth movement
b. bone resorption
c. pdl resorption
d. medullary resorption"
"a. physiologic tooth movement (correct)
b. bone resorption
c. pdl resorption
d. medullary resorption"
"Maturity of bone
Order of bone"

, a.woven, composite, lamellar
b.woven, lamellar, composite
c.woven, composite, lamellar, bundle
"a.woven, composite, lamellar, bundle
Why Charkas Loves Boys (true)


" "Angle Ortho, 1987, Roberts, Rigid Endosseous Implants for Orthodontic and
orthopedic anchorage.
- there are three microscopic types of bone tissue: woven, lamellar and composite bone.
1. Woven (embryonic, new ortho bone) bone is poorly organized tissue that is formed
rapidly (30-50 ± JLm/day) in response to skeletal wounding and overload.
2. Lamellar bone (cortical, compact), the principal load bearing tissue of the skeleton, is
formed relatively slowly (0.6JLm/day) and has considerable strength because
of a high degree of matrix maturation prior to mineralization.
3. Composite bone is a biological compromise of woven bone for rapid healing which is
subsequently filled-in with lamellar bone to improve strength.

Ten Cate's oral histology pg 253:
-Bundle bone = non-lamellar; immature; directly lines socket; penetrated by collagen
Sharpey's fibers of the PDL

"
what kind of bone is fetal bone?

"a. Lamellar
b. Woven
c. Spongy
b. woven bone

" This is also the type of bone that is formed after initial ortho tx
Which organ is responsible for calcium conservation ?
"a.Liver
b.Kidney (correct)
c.Spleen
d.Brain
"
What is the difference between primary osteons and secondary osteons?

a. Primary osteons is woven bone
b. Primary bone is fine woven bone
c. Primary osteon has ordered osteocytes
d. Primary osteons has canaliculi perpendicular to medullary canal
c. Primary osteon has ordered osteocytes
when u hear primary osteon they are referring to LAMELLAR bone per buschang.
" The adult bone is remodeled to form secondary osteons