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Prosthetic transfer impression accuracy evaluation for osseointegrated implants
Wirley Gonçalves Assunção1, Lucas Fernando Tabata, Alessandra Cardoso
1Department of Dental Materials and Prosthodontics, Araçatuba Dental School, UNESP-São Paulo State University, Brazil. wirley@foa.unesp.br
Implant Dentistry
|September 12, 2008
Summary
Comparing three osseointegrated implant impression techniques, splinted with acrylic resin (SAR) and light-curing resin (SLR) showed superior accuracy over the independent air-abraded (IAA) method for implant transfer procedures.
Area of Science:
- Dental Implantology
- Prosthodontics
- Materials Science
Background:
- Accurate implant impressions are crucial for successful osseointegrated prosthodontic rehabilitation.
- Evaluating different splinting materials and techniques can optimize impression accuracy.
Purpose of the Study:
- To compare the accuracy of three distinct impression techniques for osseointegrated implant transfer procedures.
- To assess the influence of splinting materials (acrylic resin, light-curing resin) and an air-abraded technique on impression accuracy.
Main Methods:
- Three groups were evaluated: Splinted with Acrylic Resin (SAR), Splinted with Light-Curing Resin (SLR), and Independent Air-abraded (IAA).
- Polyether impression material was used, and accuracy was measured against a control group using metal matrix (MM) inclination values.
- Angular deviations were analyzed using ANOVA and Tukey's test.
Main Results:
- No significant difference in accuracy was found between the SAR and SLR techniques for both vertical and angulated implants.
- The IAA technique demonstrated a statistically significant difference in accuracy for angulated implants compared to the control.
Conclusions:
- The SAR and SLR impression techniques yielded more accurate casts than the IAA technique.
- These findings suggest that splinting impression copings with either acrylic or light-curing resin is preferable for improved accuracy in osseointegrated implant procedures.
