Implant Surface Adhesion Analyzer

Group Members: Brad GalpernKatie KnudsonKory Nelson

Academic Advisor: Sean Kohles, PhD

Industry Sponsor: 3I

GapGap

Surface roughness of Surface roughness of implanted materials implanted materials affect adhesion qualityaffect adhesion quality

Macro scale testing Macro scale testing borrowed from other borrowed from other industriesindustries

http://www.instron.us

ObjectiveObjective

Design an apparatus to investigate the Design an apparatus to investigate the effects of various surface topographies on effects of various surface topographies on the adhesion of implants to bio-materials.the adhesion of implants to bio-materials.

Simulate mode 1 fractureSimulate mode 1 fracture Apply, measure and correlate force Apply, measure and correlate force

and displacement dataand displacement data ScaleableScaleable

IMMEDIATE OCCLUSAL LOADING™ (IOL™) OF DENTAL IMPLANTS: Predictable Results Through DIEM™ Guidelines

Richard J. Lazzara, DMD, MScD

ObjectiveObjective

Force vs Roughness crack lengthForce vs Roughness crack length Force vs Linear crack lengthForce vs Linear crack length

Images courtesy of Dr. Kohles

Design ComponentsDesign Components

FrameFrame 6061 Al6061 Al Pyramid design - strength, visual accessPyramid design - strength, visual access Secure specimen jigSecure specimen jig Houses motor and laserHouses motor and laser

Electric MotorElectric Motor 3V3V 1300 to 1 Gear reduction1300 to 1 Gear reduction

Design ComponentsDesign Components

Specimen JigSpecimen Jig 6061 Al6061 Al Simulate mode 1 fractureSimulate mode 1 fracture House test specimensHouse test specimens Houses other componentsHouses other components

Sensor ArraySensor Array Input light and voltage, output resistanceInput light and voltage, output resistance ScaleableScaleable

Design ComponentsDesign Components

LaserLaser Powerful and concentrated lightPowerful and concentrated light Fanned horizontallyFanned horizontally Drastic contrast to ambient Drastic contrast to ambient

lightlight

Force SensorForce Sensor Compression sensor adaptedCompression sensor adapted Input voltage and force, output Input voltage and force, output

resistanceresistance

Design ComponentsDesign Components

Test SpecimensTest Specimens Machined plastic barsMachined plastic bars Simulated bio materialsSimulated bio materials Varying mechanical propertiesVarying mechanical properties

TestingTesting

ResultsResults

White Caulk

0

1

2

3

4

5

6

7

0 1 2 3 4 5 6

Time

Vo

lta

ge

FailureForce

ResultsResults

Window Seal

0

0.5

1

1.5

2

2.5

3

3.5

4

0 2 4 6 8 10 12

Time

Vo

ltag

e

Failure

Force

ConclusionConclusion

All design components are All design components are scaleablescaleable

Proof of concept achievedProof of concept achieved