Chapter 12: Dental Implants

Chapter 12: Dental Implants

 

Complete Chapter Questions With Answers

 

Sample Questions Are Posted Below

 

MULTIPLE CHOICE

 

1. The success rate of dental implants is more than _____% with careful case selection.

a.	50
b.	70
c.	90
d.	99

 

 

ANS:  C

The success rate of dental implants is more than 90% with careful case selection. Implants can be used to replace one or more single units as individual crowns or as fixed bridges, or they can support a partial or full denture.

 

REF:   p. 184             TOP:   Dental Implants (Endosseous Implants)

 

2. The _____ implant is the most commonly used in dentistry today.

a.	supraperiosteal
b.	subperiosteal
c.	transosteal
d.	endosseous

 

 

ANS:  D

The endosseous implant is the most commonly used in dentistry today. Implants are of three main types: subperiosteal, transosteal, and endosseous.

 

REF:   p. 184             TOP:   Dental Implants

 

3. Which of the following is not part of postsurgical instructions for implants?

a.	Soft diet
b.	Ice packs
c.	Brush area gently
d.	Rinse with warm salt water

 

 

ANS:  C

Postsurgical instructions are given to the patient, and to a caregiver if present, before and after the procedure. This includes use ice packs at home, limit physical activity, eat soft foods, drink plenty of fluids but not through a straw, avoid smoking, and avoid vigorous rinsing. The area should not be brushed. Instead, gently clean the area with a cotton swab.

 

REF:   p. 188             TOP:   Implant Placement and Restoration (Postsurgical Instructions)

 

4. Why are endosseous implants more successful in the mandible than in the maxilla?

a.	Blood flow is better in the mandible.
b.	Gravity drags maxillary implants from their sockets.
c.	The bone in the mandible is generally much denser than in the maxilla.
d.	There is a greater lateral component of force on maxillary teeth than on mandibular teeth.

 

 

ANS:  C

The bone in the mandible is generally much denser than in the maxilla. Clinical studies have shown endosseous implants to be successful, with long-term survival (greater than 10 years) of approximately 85% in the maxilla and 95% in the mandible. The difference in success rates is related to the quality of bone in each jaw.

 

REF:   p. 184             TOP:   Dental Implants (Endosseous Implants)

 

5. Which of the following metals is most commonly used for implants?

a.	Nickel
b.	Titanium
c.	Stainless steel
d.	Molybdenum

 

 

ANS:  B

Titanium and titanium alloys are the metals most commonly used for dental implants because of their favorable biocompatibility with oral tissues. Bone will grow around and fuse to titanium implants intimately enough to retain them. Titanium alloys contain small amounts of vanadium and aluminum to improve their physical properties, particularly their strength.

 

REF:    p. 186  TOP:    Dental Implants (Implant Materials)