What can I use, buy or make to replace a temporary dental crown for a front tooth?

Answer:
There is nothing that you can do, buy or shelac onto your teeth that will do what a properly fitting, correctly shaped and normally colored temporary crown made by a dentist will do. All you can do is go see the dentist (preferably the one who did the crown prep) so he/she can replace the missing one.

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Many drug stores carry temporary filling material...the sell it in case a filling falls out and can't be replaced for a few days.

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HELLO,
THE BEST THING TO DO IS SEE A DENTIST WHO HAS THE RIGHT MATERIALS, EQUIPMENT, AND KNOWLEDGE TO DO THE JOB RIGHT.
A TEMPORARY DENTAL CROWN IS FABRICATED OF SPECIFIC ACRYLIC AND HAS TO BE PROPERLY FIT TO THE TOOTH.

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Nothing, go to a dentist and get another temp put on, not worth playing around with, it will cost you in the long run.

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