We had been difficult to perform impression taking of patients with short inter-maxillary distance. There is an every method of an opened-tray or a closed-tray technique to take impression for screw-retained implant prosthesis (SRIP).
We usually prefer to choose an opened-tray method for a point of view of precision. In impression taking for SRIP, there needs a space for impression copings with guide pins and a screw driver. Patients do not always have enough space although short guide pin (SGP) and short screw driver (SSD) can be available. When we use short guide pin, it is not nice to use for the reason being buried under the impression material. In these cases, we use the method for easy access to add the mark on the the head of guide pin indicated below. The mark help to look for the head of SGP to remove from implant head in taking impression.
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| Implant coping for wide-platform multiunit abutment, regular guide pin and SGP (Branemark system, Nobel Biocare AB, Gothenburg Sweden). |
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| Regular Unigrip screw driver and SSD. |
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| Disposable resion applicator, M 1.5mm, BSA SAKURAI CO.,LTD Aichi Japan. |
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| Cut the head of the applicator with scissors. |
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| The applicator cut is inserted the head of SGP as a mark in impression procedure. |
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| Before an opened-tray method for impression taking, the head marks were seen. |
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| It is useful to look for guide pin head to take the tray off in the actually impression procedure. |
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