3 Periosteal 3 Periosteal PPR3 Periosteal Elevators are designed for reflecting and retracting the mucoperiosteum after incisions of the gingival tissue. Featuring two blades, one large flat blade and one narrow sharp blade on round tip. 4.7mm/11.0mm Where to Buy x Category Dealer PartnersSales RepresentativeStrategic MarketsSchools RepresentativeAccutron™ Equipment Sales Zip Code Find RepresentativeReset Select a category, input a zip code and click on Find Representative, or explore the complete list here.