device stability - introduction retentive capacity (rc) of subpericranial pocket (spp) experiments...

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Device Stability - Introduction retentive capacity (RC) of subpericranial pocket (SpP) experiments measure RC Slide 2 Surgical Technique - Position minimal incision approach Slide 3 Surgical Technique - Position minimal incision approach device assumes Back position Back Slide 4 Surgical Technique - Position minimal incision approach device assumes Back position anterosuperior (Up) placement of device minimize contact with supporting surfaces UpBack Slide 5 Freeroll Angle in Recumbent Position Slide 6 Surgical Technique - Fixation suture fixation and pedestal resists displacement rotation (fantail groove) sideways (pedestal/suture) superior/inferior (pedestal) lateral (tie down suture) medial (silicone skirt/dura) Slide 7 subpericranial pocket resists displacement rotation (SpP) sideways (SpP) superior/inferior (SpP/bone) lateral (SpP) medial (bone) Surgical Technique - Fixation Slide 8 Retentive Capacity 5 Series Age (Years) Force (N) Average Retentive Capacity Versus Age 81 Patients 123 Implants - 42 bilateral - 39 unilateral Avg RC = 5.17 +/- 2.56 N Parabolic Distribution Slide 9 Retentive Capacity Across Trials Repeated Measures ANOVA -Significant Decrease in RC over repeated trials (p

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