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References
1. Sahin S, Cehreli MC. The significance of passive framework
fit in implant prosth- odontics: current status. Implant Dent
2001;10:85-92.
2. Conrad HJ, Pesun IJ, DeLong R, Hodges JS. Accuracy of two
impression techniques with angulated implants. J Prosthet
Dent 2007;97:349-56.
3. Lee H, Ercoli C, Funkenbusch PD, FengC. Effect of subgingival
depth of implant placement on the dimensional accuracy of
the implant impression: an in vitro study. J Prosthet Dent
2008;99:107-13
4. Chee W, Jivraj S. Impression tech- niques for implant dentistry.
Br Dent J 2006;201(7):429-32.
5. Chai J, Tan E, Pang IC. A study of the surface hardness and
Fig 3: Impression coping picked up-inside the final impression
dimensional stability of several intermaxillary registration
materials. Int J Prosthodont. 1994;7:538-42.
6. Wee AG. Comparison of impression materi- als for direct
dislodgement when an implant analog is attached, and a cast is poured - multi-implant impressions. J Prosthet Dent 2000;83:323-31.
regardless of whether a large part of the transfer coping is in contact with 7. Vigolo P, Majzoub Z, Cordioli G. In vitro comparison of
the impression material or not. Additionally, there is low risk of nonunion master cast accuracy for single-tooth implant replacement. J
between the pattern resin and the VPS. Pros- thet Dent 2000;83:562-6.
This technique offers multiple advantages, including cost-effectiveness, 8. Tomas Linkevicius, DDS, Dip Pros, PhD,Olga Svediene, DDS,
ease of use, and compatibility with any implant system. Egle Vindasiute, DDS, and Laura Linkeviciene, DDS, PhD A
technique for making impressions of deeply placed implants.
PROCEDURE Institute of Odontology, Faculty of Medicine, Vilnius

1. Attach an open tray impression coping (Internal Implant System; University, Vilnius, Lithuania
Ankylos: Dentsply Sirona) to an implant (Figure 1). Make a radiograph
to confirm complete seating.
2. Make a small roll and extension loop of pattern resin (GC AMERICA
INC) around the impression coping (Figure 2a & 2b) and wait for ABOUT THE AUTHOR
polymerisation.
3. Applying VPS tray adhesive (3M ESPE AG, Germany) to the surface of Dr. Gopal Goel
impression coping and impression tray and air-dry. · Graduated in Basic & Advanced
4. Inject VPS light body impression material (Aquasil LV) over the teeth implants from DGOI (Germany ) in
and impression coping. association with APAID.
5. Place a complete arch impression tray filled with VPS putty (Aquasil LV) · Diploma in “The Chairside Approach
intraorally. Weldone & Conometric Concept”,from
6. Upon polymerization of impression materials, the screw of the impression Italy.
coping can be loosened, allowing the tray to be removed from the mouth · KOL for Dentsply Sirona and MIS
(Figure 3). implants.
7. Connect a laboratory implant analog (Ankylos: Dentsply Sirona) to the · Lectured across the world on Partial Extraction Therapy,
impression coping. Conometric Concepts and Guided Implant Surgeries.
· Lectured across various dental colleges in India.
This innovative technique not only ensures accurate impressions for
deeply placed implants but also offers enhanced stability and reliability, · Running successful multi-chaired dental clinic in Delhi
since 2001.
contributing to the long-term success of dental implants and implant-
supported prosthesis.

Dental Practice i July-August 2023 i Vol 19 No 4 49