Renaissance Life & Health Insurance Company of America is becoming a national dental insurer by assuming the business of an affiliate, Renaissance Life & Health Insurance Company of Indiana.

Renaissance Life, Okemos, Mich., is an affiliate of Delta Dental Plan of Michigan Inc., Okemos, a large Michigan dental insurer. Both companies are units of Renaissance Health Service Corp., a holding company that Michigan Delta formed to help it expand throughout the country.

Renaissance Life announced in late 2006 that it and a New York affiliate would be selling dental insurance and other ancillary benefits in Florida, New York and North Carolina.

Renaissance Life of Indiana started out as Lincoln National Health Care Insurance Company. The name of the company changed to SantaFe Insurance Company in 1989; to AmeriFirst Insurance Company in 1993; to Vencor Insurance Company in 1997; and to Great Lakes Life & Health Insurance Company in 1999. The company adopted its current name in 2001.

Assuming the business of the Indiana affiliate will give Renaissance Life of Michigan the ability to sell insurance in all 50 states and the District of Columbia, according to Renaissance Life of Michigan.

Renaissance Life also has switched to a dental provider network, the DenteMax network, which includes 72,000 locations in all 50 states and the District of Columbia, according to Renaissance Life of Michigan.

CORRECTION: The original version of this article described the relationship between Renaissance and Delta Dental incorrectly and gave the wrong date for the beginning of the company’s recent efforts to expand nationwide.