OBJECTIVES: The aim of this study was to evaluate the influence of the contact of two lipsticks. one with common fixer and one with ultra fixer. on the color of a composite resin immediately. 30 min and 24 h after photoactivation. https://vmacjlglcde7e.aioblogs.com/87843699/editorial-of-special-issue-on-power-transmission-and-control-in-power-and-vehicle-machineries