AAID ABOI SUBMISSION TEST QUESTIONS
AND ANSWERS 2026/2027 UPDATED STUDY
GUIDE
◉ composite bone. Answer: early bone where lamellar bone with
primary osteons are in a woven bone matrix
◉ bundle bone. Answer: functional adaptation of lamellar bone with
sharpeys fibers and pdl
◉ bone modeling 3 descriptors. Answer: uncoupled resorption and
formation, change in size and shape, macroscopic changes
◉ bone remodeling 3 descriptors. Answer: coupled
resorption/formation, axially oriented cutting cones, turnover
microscopic changes
◉ 3 landmarks to determine growth completion. Answer: sella
turcica, cribiform plate, and frotal bone
◉ What does 1,25-DHCC dihydroxycholecalciferol do?. Answer:
vitamin D active metabolite that aids transfer of Calcium ions from
osteocytes to extracellular fluid (releases calcium)
,◉ 3 calcific hormones. Answer: pth, 1,25 dhcc, calcitonin
◉ Calcitonin. Answer: Lowers blood calcium levels slows resorption
of bone
◉ pth and 1,25dhcc do what. Answer: enhance bone resorption and
increase serum calcium
◉ primary calcium conservation organ. Answer: kidney
◉ kidney excretes____ resorbs___. Answer: po4 phospate, calcium
◉ describe what kidney disease causes in bone. Answer: low calcium
resorption, low serum calcium, high pth, secondary
hyperparathyroidism, impaired vitamin D metabolism,
◉ vitamin d is a. Answer: steriod hormone not a vitamin!
◉ peptide hormones 4. Answer: pth, growth hormones, insulin,
calcitonin
◉ testosterone does what to calcium. Answer: enhances release from
bone
, ◉ estrogen does what to calcium. Answer: slows resorption of bone
and conserves calcium in bones
◉ aluminum in titanium does what. Answer: decreases specific
weight and lowers elastic mod
◉ vanadium in implants does what. Answer: decreases thermal
conductivity and increase hardness
◉ thickness of oxide layer. Answer: 0.2-0.5nm
◉ significance of turned surfaces. Answer: formation of distance
osteogenesis
◉ titanium plasma spray TPS does what. Answer: increase surface
area up to 600% and functional increase 20-30%
◉ T or F sandblasted/acid etched has less BIC than plasma sprayed.
Answer: F opposite
◉ T or F Sandblasted/acid etched has lower removal torque than
plasma sprayed. Answer: F they are not significantly different in
removal torque
◉ 3 advantages of HA over tps. Answer: faster healing, increased gap
healing, less corrosion
AND ANSWERS 2026/2027 UPDATED STUDY
GUIDE
◉ composite bone. Answer: early bone where lamellar bone with
primary osteons are in a woven bone matrix
◉ bundle bone. Answer: functional adaptation of lamellar bone with
sharpeys fibers and pdl
◉ bone modeling 3 descriptors. Answer: uncoupled resorption and
formation, change in size and shape, macroscopic changes
◉ bone remodeling 3 descriptors. Answer: coupled
resorption/formation, axially oriented cutting cones, turnover
microscopic changes
◉ 3 landmarks to determine growth completion. Answer: sella
turcica, cribiform plate, and frotal bone
◉ What does 1,25-DHCC dihydroxycholecalciferol do?. Answer:
vitamin D active metabolite that aids transfer of Calcium ions from
osteocytes to extracellular fluid (releases calcium)
,◉ 3 calcific hormones. Answer: pth, 1,25 dhcc, calcitonin
◉ Calcitonin. Answer: Lowers blood calcium levels slows resorption
of bone
◉ pth and 1,25dhcc do what. Answer: enhance bone resorption and
increase serum calcium
◉ primary calcium conservation organ. Answer: kidney
◉ kidney excretes____ resorbs___. Answer: po4 phospate, calcium
◉ describe what kidney disease causes in bone. Answer: low calcium
resorption, low serum calcium, high pth, secondary
hyperparathyroidism, impaired vitamin D metabolism,
◉ vitamin d is a. Answer: steriod hormone not a vitamin!
◉ peptide hormones 4. Answer: pth, growth hormones, insulin,
calcitonin
◉ testosterone does what to calcium. Answer: enhances release from
bone
, ◉ estrogen does what to calcium. Answer: slows resorption of bone
and conserves calcium in bones
◉ aluminum in titanium does what. Answer: decreases specific
weight and lowers elastic mod
◉ vanadium in implants does what. Answer: decreases thermal
conductivity and increase hardness
◉ thickness of oxide layer. Answer: 0.2-0.5nm
◉ significance of turned surfaces. Answer: formation of distance
osteogenesis
◉ titanium plasma spray TPS does what. Answer: increase surface
area up to 600% and functional increase 20-30%
◉ T or F sandblasted/acid etched has less BIC than plasma sprayed.
Answer: F opposite
◉ T or F Sandblasted/acid etched has lower removal torque than
plasma sprayed. Answer: F they are not significantly different in
removal torque
◉ 3 advantages of HA over tps. Answer: faster healing, increased gap
healing, less corrosion
