Stage 1 vs 2

Question 1

Indications for 1 stage

Answer 1

Adequate primary stability
No GBR
Non-esthetic zone
Healthy/non-smoker

Question 2

Indications for 2stage

Answer 2

Smoker
Non-adequate primary stability
Simultaneous GBR
Simultaneous Sinus

Question 3

Fiorellini

Answer 3

Submerged vs Non-submerged (stage 1 vs stage 2)

Submerged had less during first 12 weeks
After abutment connection, Submerged lost more bone
After final eval, they were equal

Bone remodeling happens at time of abutment connection

Question 4

Ericcson et al. 1996

Answer 4

Split mouth 1stage vs 2stage

• *Observed that in the 1stage group, inflammatory cells concentrated around the implant-abutment connection**
• *0.8mm** from inflammatory cells to bone (CT zone)
• *2.4mm** crestal bone loss (bio width?)

Question 5

Ericcson et al. 1997

Answer 5

5yr follow up RCT split mouth human

1stage and 2stage had NSSD radio and clinically