Dr. Ed Obrock practiced on the 2nd floor of the Kresge Building at 6th & Maine from 1957 to 1966, at which time he moved the practice to 803 Ohio, in the new professional building adjacent to 8th & State St. He continued in the solo practice of general dentistry in that location for the next 17 years. With the addition of Dr. Paul in 1983, the group practice changed locations to 334 S. 8th St., on the NW corner of 8th & Kentucky. By moving only two blocks, the practice was able to stay in the German Village of Quincy, a State of Illinois Historic District.

With a history in the Quincy German Village, and particularly with a location on busy South 8th Street, the practice has seen many changes in neighbors over the years. The anchor department store of the State & 8th business area, the State Street Store, located across the street from the office, closed its doors in the early 90’s. The building is now home to the Early Childhood & Family Center of the Quincy Public Schools. Across the street and north, The Pear Tree Villa, an office mall, was formed by the connection of several 1890’s era homes.

One block to the south is the historical center of German Village commerce, the intersection of 8th & State Streets. A business of long standing on this corner is State Street Bank & Trust Co.

One of the most unique shops in Quincy is located less than 1 block from the office! The Quincy Steamboat Co. is located just to the east of 8th St, on Kentucky. The Quincy Steamboat is a cooking school, culinary shop, caterer, and all around fun place to find unique foods and cooking supplies. The most recent addition to the neighborhood is the $5.5 million Senior Citizen Center located a block north on York St.

The year 2004 saw a change in the delivery of group practice. With the addition of additional dentists the Professional Corporation evolved into Cornerstone Dental Health. The practice name changed to fully reflect that we are indeed the “cornerstone” for your dental health.