Recent CommentsProtemp: Fast Temporary Crowns or Not Worth It?
posted in Fixed Prosthodontics, Cosmetic Dentistry, 3M ESPE, What's New
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When I was at the American Academy of Aesthetic Dentistry meeting in Atlanta I tried out these preformed temporary crowns called Protemp Crowns, from 3M, in one of the workshops. They are easy to adapt around the prepared tooth and you can use finger pressure or instruments to adapt it to the contours and margins.
After a few tries, I still felt that I needed to reline the temporary crown to get enough retention and resistance and to refine the margins. I was also put off by the need for stacking an inventory since they are preformed. I was not impressed. I think it is easier to make a pre-op impression and use that as a mold. Anybody having success with Protemp crowns?
Editors Note:
According to 3M:
“Protemp™ Crown allows you to perform a single-unit crown in less than four minutes…No matrix, impression materials, cartridge guns, mixing tips or liners are needed - simply select the appropriate preformed crown size. With its soft malleability, easily adapt the crown to its oral environment, light cure, polish and cement using standard temporary cements.
Protemp™ Crown provides a custom fit for your adult patients. Protemp™ Crown temporization material can be trimmed, adapted and re-shaped chair-side using common dental instruments. Protemp™ Crown has very low oxygen inhibited layer and other physical characteristics such as no odor and low exothermic temperatures.”
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4 Responses to “ Protemp: Fast Temporary Crowns or Not Worth It? ”
I have had a very positive experience with this product. I place Dentsply’s clear light cured resin inside the shell, place it on the prep, have the patient bite down and then cure for 3 seconds per surface, remove and cure with a light out of the mouth. Patients like the color and the smooth feel. I like the speed.
I think they’re great. Margins are better than acrylic, easier than acrylic or bis-acryl to work with. No need to reline and easy to adjust. Worth the added expense with the time they save.
You should give them another try. Several tricks: use trimings to reline them to have more retention(also you can use flow composite to repair them), you also can reline them with regular methacrylates (althoug 3m says is not compatible)this will serve as a core, and the britleness on the bys-acrilic is improved greatly. you should consider them also in the difficult task of adapting a temporary crown to an existing removable partial denture, they are great for this.
Just came back from a weekend course. The product is fabulous.