Systemic & Anatomic Considerations (7.A-B)

Question 1

• Smoking & implants (O.Ratio??)

Answer 1

Syst.Rev.(64)
Imp. Failure O.R. **2.8 **1st.Y
GBR Failure O.R. 3.6
Smokers +risk: imp.failure, periimp. Inlamm. & BL

Strietzel 2007

Question 2

Anterior loop

Answer 2

Arzouman 1993: 25skulls OPG vs DIrect measurement
Rx tends UNDERESTIMATE vs reality
Legnth: Rx ~3-3.5mm__ Anat.~7mm
Presence >2mm: Rx 56%__ Anat.92%

Rosenquist 1996: 58pzvOPG
Rx tends OVERESTIMATE ant.loop (Bavitz et al.)
Legnth: 0-1mm
Presence: 26%

• Rosenquist 1996
• Arzouman 1993

Question 3

Inferior Aveolar Nerve @ Canal diameter

Answer 3

Greenstein 2008
Canal 3.4mm
Nerve 2.2mm