Upper arch Marian Newman, BEM 05/09/2021 33 Views The ‘upper arch’ on an enhanced nail is the curve between the PNF and the free edge as viewed from the side. It should be appropriate to the shape and length. Related Articles: Glossary: C-CurveBuilder UV Gel in a Bottle – what’s the buzz?Glossary: ApexThe Structure of Overlays and Enhancements
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