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Open- or Closed-Tray Impression Technique in Implant Prosthesis: A Dentist's Perspective
Sanjog Agarwal1, V Ashok1, Subhabrata Maiti1
1Department of Prosthodontics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai-600077, Tamil Nadu, India.
Journal of Long-Term Effects of Medical Implants
|January 19, 2021
Summary
Accurate dental implant impressions are crucial for optimal prosthesis fit. This study compared open-tray and closed-tray impression techniques, finding the open-tray method more frequently used for implant dentistry.
Area of Science:
- Dental Prosthodontics
- Implant Dentistry
- Restorative Dentistry
Background:
- Precise transfer of implant position to the working cast is essential for optimal fit of the final restoration.
- Various factors can influence the accuracy of implant impressions.
- Accurate impressions are fundamental for the success of implant-supported prostheses.
Purpose of the Study:
- To compare the accuracy of open-tray and closed-tray impression techniques in dental implants.
- To evaluate the prevalence of different impression techniques in a clinical setting.
Main Methods:
- A cross-sectional, descriptive study was conducted.
- Adult patients from a prosthodontics outpatient department were included.
- 2500 case sheets were evaluated, and a chi-squared test was used to analyze the data.
Main Results:
- The open-tray impression technique was utilized in 53.8% of cases, while the closed-tray technique was used in 46.2%.
- Among open-tray cases, 78.2% used a nonsplinted method compared to 21.8% using a splinted method.
- The study explored the relationship between impression techniques and other variables.
Conclusions:
- Impression technique is a critical factor for the success of dental implants.
- The open-tray technique appears to be more prevalent in certain clinical scenarios.
- Effective impressions are a primary requirement for successful implant prosthodontics.

