Calculating Percent Recovery & Percent Yield. Percent Recovery: Percent recovery is used in cases where no chemical reaction is taking place, as in purification of a. sample. It is calculated as follows: % recovery =. amount pure product recovered (g) amount of crude material used (g) x 100. Percent Yield: Percent yield is used is cases where a chemical transformation occurs.
marÂ·giÂ·nal ridge. 1. An elevation of enamel that forms the proximal boundaries of the occlusal surface of premolars and molars. 2. An elevation on the mesial and distal portions of the lingual surface and, occasionally, the labial surface of incisors.
To understand the differences first let us know about What is Fenestration and What Dehiscence: Definition of Tooth Fenestration: Fenestration are Isolated areas in which root is denuded of bone and root surface is covered only by periosteum and overlying gingiva is called as fenestration.