"Holy Molars: Omahans Say Dental Work Turned Gold," Omaha World Herald 6/27/1999.

See also "Tooth Claim Could Use a Checkup," Omaha World Herald (editorial) 6/29/1999.

The pictures of Margaret Kaspar in the June 27, 1999 Omaha World Herald and the June 1991 Fremont Tribune indicate it is likely the same Margaret Kaspar.

Important: Although full text Omaha World Herald articles are available at the Internet database Lexis Nexis, the Lexis Nexis database does not contain the 6/27/1999 dental miracle article.  The Pro-Quest Newsstand Internet database of the Omaha World Herald does have this article, however. 
Although a similar article appeared in The Grand Island Independent, information about Kaspar's dentist stating that the crown already had a gold color when it was put in is missing from that version.