Place the kit or tray on a clean work surface. 3. Turn the kit or tray so the cover flap will open away from you and peel off the cover. Be careful not to touch the inside of the kit or tray. 4. The kit and tray contents are sterile. The outside of the kit or tray is not sterile. 5. Pull the package with the sterile paper sheet open. If the sterile sheet is in the kit, carefully pinch the top of it and lift it up and out of the kit.
frenum (frÄÂ´num), n a vertical band of oral mucosa that attaches the cheeks and lips to the alveolar mucosa of the mandibular and maxillary arches, limiting the motions of the lips and cheeks. Older term:frenulum. Frenum.
A frenulum (or frenum, plural: frenula or frena, from the Latin frÄnulum, little bridle, the diminutive of frÄnum) is a small fold of tissue that secures or restricts the motion of a mobile organ in the body. 1 In human anatomy.