Pelekos G, et al. - A comparison of aesthetics after addition of connective tissue grafts (CTG) or a collagen matrix (CMX) to coronally advanced flap (CAF) was done. In this priori analysis, baseline and 6-month post-operative Images from 183 subjects with 475 recessions from a previously reported multicentre multinational randomized clinical trial were analyzed by 2 independent, trained and calibrated assessors. Researchers included 155 subjects (81 CTG) and 393 teeth (207 CTG) in the analysis. The CTG group displayed better overall root coverage aesthetic score scores. The CMX group displayed better marginal tissue texture and marginal contour. To optimize materials to be used in conjunction with CAF to improve root coverage without negatively affecting tissue texture and marginal contour, they recommend performing more research and development.