20 A Comparison of the Effects of the Latham–Millard POPLA Procedure with a Conservative Treatment Approach on Dental Occlusion and Facial Aesthetics in CUCLP and CBCLP Samuel Berkowitz, Martha Mejia Dental Occlusion One of the most widely debated areas in the treatment of cleft lip and palate involves the use of presurgical orthopedics and periosteoplasty with lip adhesion (POPLA) designed by Ralph Latham (orthodontist) and D. Ralph Millard, Jr. (plastic surgeon) [1, 2]. They contend the POPLA procedure is superior to a conservative nonpresurgical orthopedic treatment (nonPOPLA) for producing more aesthetically appealing lip/nose surgery, while still allowing for good midfacial growth and dental occlusion.