A comparison of impression techniques for the CeraOne abutment

Area of Science:

• Dental materials science
• Prosthodontics
• Implant dentistry

Background:

• Accurate impressions are critical for successful single-tooth implant restorations.
• Noblepharma's CeraOne system requires precise impression techniques for optimal fit.

Purpose of the Study:

• To compare the accuracy of two impression techniques for the CeraOne single tooth implant restoration.
• To evaluate the impact of luting the impression transfer coping on impression accuracy.

Main Methods:

• Two groups of 35 polyvinyl impressions were created: one with a free-standing transfer coping and one with a coping luted using acrylic resin.
• A specialized jig and light microscope were used to measure spatial discrepancies and impression variations.

Main Results:

• The non-luted (free-standing) technique showed a mean horizontal discrepancy of 0.094 mm and a vertical discrepancy of 0.154 mm.
• The luted technique resulted in a higher mean horizontal discrepancy of 0.275 mm and vertical discrepancy of 0.192 mm.
• Statistical analysis confirmed significant differences in accuracy between the two techniques.

Conclusions:

• The free-standing impression technique is significantly more accurate for CeraOne single tooth implant restorations.
• Avoiding luting the impression transfer coping to the tray improves the precision of dental implant impressions.