A dental network unit owned by Health Care Service Corp. has acquired a competitor from Blue Cross Blue Shield of Michigan.

Dental Network of America L.L.C., Oakbrook Terrace, Ill., has completed the purchase of DenteMax, Southfield, Mich. The price of the deal was not immediately available.

Health Care Service, Chicago, the parent of DNoA, is also the parent of the Blue Cross and Blue Shield plans in Illinois, Texas and other states. The DNoA network unit serves 19,000 employer groups and 2.6 million dental plan members.

DenteMax opened its doors in 1985. Michigan Blue, Detroit, acquired it in 2002.

The DenteMax network now has 91,000 “dentist access points” in its dental provider networks, and it serves dental plans with 5 million enrollees. The company has been leasing the network to DNoA and about 200 other payers.

DNoA will employ a majority of the 84 DenteMax employees, and Michigan Blue will employ the rest, according to DNoA.

Michigan Blue’s 1.3 million Blue Dental plan members will continue to use the DenteMax network.

“There will be no disruption to the Blue Dental member’s dental network or to their dental coverage,” DNoA says. “In addition, there will be no disruption to the DenteMax providers, and they should continue to submit claims as they do today.”