Abstract：
As Penn Dental School prepares for its Commission on Dental Accreditation (CODA)-approved dual-certificate periodontics/prosthodontics program, this article looks back at the roots of these specialties at the university via the renowned Periodontics and Periodontal Prosthesis program co-founded byCompendium\'s founding editor Dr. D. Walter Cohen as seen through the eyes of one of its graduates. The article commends the program\'s impact on public health today.
摘要：
随着宾夕法尼亚大学牙科学校为其牙科认证委员会（CODA）批准的双证牙周病/修复计划做准备，本文通过Compendium的创始编辑D.WalterCohen博士共同创立的著名的牙周学和牙周修复计划，回顾了该大学这些专业的根源。文章赞扬了该计划对当今公共卫生的影响。
