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Axial displacement in internal Implant

도윤 권

on 19 November 2014

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Transcript of Implant

settling effect
Machinig tolerance
Wedge effect
Tightening torque could increase the axial
displacement of the abutment.

-Daily et al., 2009, Kim et al. 2010
Internal Implant
External Implant
+ Occlusal loading → Loss of preload
Inaccurate impression
Prosthetic lesion
Joint stability
-To evaluate the relationship of the
applied torque and the axial displacement in
external and internal implant-abutment

In the prosthetic procedures
(impression taking, pattern resin, final prosthesis)
-To evaulate the axial displacement after
cyclic loading
Fixture Analogue
Impression copping
Impression copping
Impression copping
Abutment & Framework
Abutment & Framework
Abutment & Framework
Abutment & Framework
Abutment & Framework
Vertical static cyclic loading
Cyclic Loading
Torque Tightening
-Axial displacement
Material & Methods
-SPSS statistical Software 19.0K for Windows
(SPSS Inc., Chicago, U.S.A.)

-2-way ANOVA, 3-way ANOVA
-Repeated Measured ANOVA
: All tests were performed with 5% significance level

-Scheffe test for post hoc comparison
Statistical analysis
Axial displacement in external and internal
implant-abutment connection

Do-yoon Kwon
Ban-suk Kim
Results & discussion
Impression Copings
Tightening Torque
Cyclic Loading
1. After 30 Ncm tightening, INT group showed significantly higher axial displacement than EXT group for all instances.

2. After 30Ncm tightening, statistically significant differences were found in axial
displacement of INT 1-piece impression coping.

3. After 30Ncm tightening, there were significantly higher axial displacement of framework in INT group(24 ㎛) and EXT group (10 ㎛) compared to the impression coping, pattern resin and cyclic loading.

4. After 250 N cyclic loading, there were statistically significant axial displacement in the INT group(6.3 ㎛) than EXT group(1.8 ㎛) within 3 cycles.
Thank you for your attention
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