Modified Serrated Minnesota Retractor Modified Serrated Minnesota Retractor CRMT The Modified Serrated Minnesota Retractor is used to hold mucoperiosteal flaps, cheeks, lips and tongue away from the surgical area, 5.3" long. 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.