Dental Crowns/Caps in Phoenix AZ ALL CROWNS ARE MADE IN USA WITH HIGHEST QUALITY. Special Internet Offer (expires 6pm 2/28/2010) with R495-228 promo code ONLY About Dental Crowns/Caps: Dental crowns are used widely in modern dentistry for many purposes from cosmetic to structural. A dental crown is a tooth-shaped “cap” that is placed over a tooth – covering the tooth to restore its shape and size, strength, and/or to improve its appearance. The crowns, when cemented into place, f...