WorksheetsHard Tissue Replacement
Total questions: 25
Worksheet time: 13mins
Which material is most commonly used for orthopedic fixation devices like wires, pins, screws, and plates?
Polyethylene
Stainless steel
Titanium alloy
Ceramic
What is the primary advantage of using titanium over stainless steel in orthopedic implants?
Higher density
Better corrosion resistance and biocompatibility
Lower mechanical strength
Increased magnetic susceptibility
What is the main purpose of intramedullary nails?
To replace joints
To fix long bone fractures
To stimulate bone growth
To replace bone tissue
Which of the following is a biodegradable material used for orthopedic screws and pins?
Titanium
Stainless steel
Polylactic acid (PLA)
Zirconia
Which property is most important for orthopedic plates used in fracture fixation?
High electrical conductivity
High flexibility
High fatigue resistance
Low density
What is the most common material used for the femoral component in total hip replacement?
Polylactic acid (PLA)
Titanium alloy
Polyvinyl chloride (PVC)
Hydroxyapatite
Which material is typically used for the bearing surface in artificial joints due to its low friction properties?
Cobalt-chromium alloy
Ultra-high-molecular-weight polyethylene (UHMWPE)
Stainless steel
Aluminum oxide
What is the primary function of bone cement in joint replacement?
To stimulate bone growth
To hold the implant in place
To replace bone
To act as a lubricant
Which of the following is NOT a commonly used joint replacement material?
Cobalt-chromium alloy
Hydroxyapatite-coated titanium
Silicone rubber
UHMWPE
In knee replacement, what component is usually inserted between the femoral and tibial parts?
A metal plate
A ceramic spacer
A polyethylene insert
A bone graft
Which joint is commonly replaced in upper extremity arthroplasty?
Ankle joint
Elbow joint
Hip joint
Sacroiliac joint
What is the most commonly used material for shoulder joint replacements?
Cobalt-chromium alloy
Titanium alloy
Zirconia
Polypropylene
Which type of implant is commonly used for wrist fractures?
Intramedullary nail
Dynamic hip screw
Volar locking plate
Tibial nail
Which of the following is an advantage of ceramic-based upper extremity implants?
High electrical conductivity
High wear resistance
High flexibility
High biodegradability
What is the main reason for failure in upper extremity implants?
Implant corrosion
Stress shielding
Low mechanical strength
Tissue overgrowth
What is the primary material used for femoral stems in hip implants?
Polyethylene
Stainless steel
Titanium alloy
Gold
Which of the following is commonly used for tibial implants in knee replacement?
Polyethylene
Cobalt-chromium alloy
Ceramic
Acrylic
What is a major complication associated with lower extremity implants?
Reduced blood circulation
Stress shielding
Nerve regeneration
Bone overgrowth
Which implant is commonly used for ankle arthroplasty?
Tibial plate
Intramedullary nail
Ankle prosthesis
External fixator
What is the function of porous coatings in lower extremity implants?
Reduce implant cost
Prevent implant failure
Promote osseointegration
Increase weight
Which material is most commonly used for dental implants?
Stainless steel
Titanium
Gold
Polyethylene
What is the main advantage of zirconia dental implants over titanium implants?
Lower cost
Higher corrosion resistance
Better electrical conductivity
Greater flexibility
Which material is commonly used for dental crowns?
Cobalt-chromium
Hydroxyapatite
Porcelain
Silicone
What is the purpose of osseointegration in dental implants?
To increase implant flexibility
To reduce bacterial infection
To bond the implant with bone
To prevent gum recession
Which material is commonly used for temporary dental restorations?
Gold
Composite resin
Titanium
Zirconia
