I agree with David. Having done 3 dental offices over the last 12 months. Each used a different company's equipment or in combination with existing equipment that was moved. Each had a different way of working and needed different equipment. With the increased use of computer generated images (x-rays) and chair-side cad/cam for crowns, dental equipment needs are always changing. Except for one dentist, they went to the equipment supplier first, to get a preliminary cost of equipment and the company provided a preliminary layout. I was given their cad blocks (in ACAD) on the condition I would not use them except for their respective projects.
A-dec.com has brochures and specs to download. Benco Dental has several sample floor plans in pdf for download. I couldn't find anything on the Patterson Dental website, but, since they are one of the largest suppliers, I may have missed the information.
Hope this helps.
ps: The illustrations I posted in the thread
https://www.datacad.com/bbs/viewtopic.php?t=364 was one of the dental offices.