Tx of Partial Edentulism

Question 1

What does survival of restoration mean?

Answer 1

Restoration still in mouth at time of exam - state of prosthesis or pt satisfaction ignored

Question 2

What does success of restoration mean

Answer 2

Restoration in mouth w/ satisfactory function, meets pt and clinical standards

Question 3

Survival rate of partial denture at 10 years and 5 years?

Answer 3

50-70% at 10 years

75% at 5 years

Question 4

Survival of fixed-fixed conventional bridge after 10 years?

Answer 4

90%

Question 5

Survival of conventional bridge after 10 years?

Answer 5

80%

Question 6

Survival rate of RBB after 10 years?

Answer 6

80%

Question 7

Survival PFM crown 10 years?

Answer 7

96%

Question 8

Survival implant after 10 years?

Answer 8

96%

Question 9

How does PAP impact success of RCT?

Answer 9

PAP reduced chance of success by 50% - reduced by 14% for every 1mm of increasing size

Question 10

How is success affected if RCT is short?

Answer 10

Lowered 12% for every 1mm short apex

Question 11

What reduces success RCT?

Answer 11

Long root filling
Perforation
Sinus/ PAP
Irrigation CHX

Question 12

What increases success RCT?

Answer 12

Good coronal seal

Question 13

Why shouldn’t provide cantilever bridge to RCT’d tooth?

Answer 13

Root treated teeth more prone fracture cervical margin - risk more significant when cantilevered

Question 14

What is tooth restoratibiltiy index?

Answer 14

Assessment of amount of remaining coronal tissue

Question 15

What is critical when providing resistance and retention to a crown?

Answer 15

A ferrule of at least 2-3mm

Question 16

What is a key factors to consider when providing prosthesis?

Answer 16

Periodontal health and occlusal assessment

Question 17

What happen if poor periodontal health?

Answer 17

Inappropriate support leading to mobility and failure of rigid abutments etc

Question 18

What should be included in occlusal assessment?

Answer 18

Occlusal contacts, guidance patterns and identify occlusal anomalies

Question 19

Risk w/ partial dentures in absence good OHI

Answer 19

root caries - increased risk

Accumulate plaque and predispose to gingivitis

Question 20

% of pt w/ implants will suffer w/ mucosiitis or peri-implantitis?

Answer 20

Peri-mucositis = 60%
Peri-implantitis = 20%

Question 21

What is intervention for peri-implantitis?

Answer 21

Open flap debridement

Question 22

Advantage of overdentures?

Answer 22

Retain proprioception
Improved stability and retention 
Maintain alveolar bone heigh
Psychological benefit
Increased biting force/ accuracy

Question 23

What should pt be aware of prior implant surgery?

Answer 23

Normally two surgeries needed
May want sedation
Grafting may be required
Then need rehabilitation and maintenance

Question 24

What are some implant complications?

Answer 24

Bone loss
Screw or abutment loosening
Loss of retention
Fracture of veneering material

Question 25

What index can be used for TSL?

Answer 25

Smith and Knight classification