temporary abutment. straumann 2 education component materials temporary abutment (polymer, ti) basal...
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Temporary Abutment
2EducationSTRAUMANN
Component materials Temporary Abutment (Polymer, Ti) Basal Screw (TAN)*
Temporary Abutment Concept Intended use For NC (Narrow Crossfit™ Connection)
and RC (Regular Crossfit™ Connection) Screw- or cement-retained temporary single crowns Cement-retained temporary bridges
Benefits Easy chair-side modification Esthetic temporization High flexibility Stability and precision
NC RC
*TAN is one type of titanium alloy material
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Important
Restoration can remain in mouth for up to 6 months only
Temporary restoration must be out of occlusion
Modification: Radially max. 0.5 mm for NC
and 1.0 mm for RC Vertically max. 6.0 mm
(maintain at least 5.0 mm polymer height)
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Temporary Abutment
Option A
Screw-retained temporary restoration
Option B
Cement-retained temporary restoration
A B
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Diagnostic wax-up and lab impression
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Option A. Screw-retained restoration
Steps:Modify temporary abutmentRoughen upper section of abutment Use heatless wheels and new carbide burs Work with low rpm, little pressure
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Option A. Screw-retained restoration
Hand-tighten individualized abutment into implant or model Seal screw channel (e.g., with composite)
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Option A. Screw-retained restoration
Direct veneer the abutment with vacuum-formed sheet technique and fill with acrylic
Remove excess acrylicPolish finished crown
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Option A. Screw-retained restoration
Re-open the screw channelTighten temporary crown between 15 - 35 NcmCover screw head (e.g., with absorbent cotton)Seal screw channel (e.g., with composite)
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Option B. Cement-retained restoration
Modify temporary abutment (no undercuts!)
Roughen upper section of abutment
Use heatless wheels and new carbide burs
Work with low rpm, little pressure
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Option B. Cement-retained restoration
Isolate modified abutmentFabricate cementable crown on top (e.g., build up with
composite)
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Option B. Cement-retained restoration
Place customized abutment onto implantTighten temporary crown between 15 - 35 NcmCover screw head (e.g., with absorbent cotton)
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Option B. Cement-retained restoration
Cement crown using temporary cement