Discussion
postoperative pain, TG, KGW gain
In this clinical study, the MRC% achieved by means of two different surgical procedures was compared. Considering the evidence [On the one hand, the increase in the MRC% in the TG from 61.59 to 73.26% at 12 months, despite presenting some more unfavorable baseline characteristics could be related to the traction and coronal stabilization of the tunnel-papillae-graft complex, which would favor the maturation of marginal soft tissues over time. On the other hand, the reduction in the MRC% in the CG could be due to the characteristics of the patients, who showed a tendency to higher FMPI and FMBI values and greater tobacco consumption [Also, different characteristics of the recessions can facilitate or hinder the RC obtained in Miller class III/RT2 recessions, including the tooth position [In fact, when comparing all the recessions included in this study with those treated in recent RCTs with a 12-month follow-up [In addition, our recessions were smaller (3.10 mm) than those treated by Mercado et al. [As previously mentioned, when comparing the MRC% of the study groups independently, the results favored the TG, although in this group, there was a greater number of mandibular and posterior recessions. This could be due to the positive influence of other baseline characteristics, such as a smaller recession size, greater soft tissue filling in the interproximal space, and greater KGW.In fact, some of these clinical variables could have a stronger or weaker influence on the MRC% according to the periodontal plastic technique used. Thus, with the CAF technique, a positive association was observed between the MRC% and the width of the CTG, and a negative relationship was observed between the MRC% and the FMPI and FMBI, while with the m-VISTA technique, there was a negative association between the MRC% and the RxBL and PC-IP. The latter association is consistent with the results of Aroca et al. [This study highlights the difficulty of achieving CRC% it in this type of recessions, with 46.7% of the recessions in the TG and 29.5% in the CG being completely covered at 12 months. This corroborates the findings of a previous systematic review that reported values of 42.1% at 12 months, with a decrease to 18.23% when the follow-up was extended beyond 1 year [Thus, in this study at 12 months, the KGW gain was 0.88 mm in the TG and 0.58 mm in the CG, which is within the ranges [0.10–1.72 mm] previously described [While patients were highly satisfied with the esthetic results, postoperative pain was of greater intensity and duration in patients who underwent surgery with the m-VISTA technique. Likewise, Gobbato et al. [Finally, this RCT is not exempt from limitations, such as not having considered the thickness of the flap, as the current classification was not available when this study was designed, the participation of postgraduate students in surgical procedures, and the follow-up (12 months), which did not allow the evaluation of the long-term stability of the results. There is no doubt that these aspects should be analyzed in future studies.However, it is the authors’ belief that this study has its strengths, such as the significantly good results in terms of REC reduction in multiple Miller class III [