A clinical study of Er:YAG Laser vs.Conventional incision-and-suture technique for upper-labial-frenotomy in children during the mixed-dentition stage
GAO Yuan
JIA Jingchen
CAI Chengxiong
LI Hongshi
Abstract：Objective To compare the postoperative outcomes between Er:YAG laser and conventional surgical treatment in lip ligament revision,and to investigate the clinical effect of Er:YAG laser treatment.Methods Thirty children(2021 to 2024)requiring upper labial frenectomy were randomly assigned to either an Er:YAG laser group or a traditional scalpel group.Postoperative parameters-including operation time,intraoperative bleeding,visual analog scale(VAS)pain scores,wound healing time,and complications-were compared.Tooth alignment and midline diastema reduction were evaluated at 6-month follow-up.Results The Er:YAG laser group showed a significantly shorter operation time(13.11±2.07 min vs 18.25±1.53 min,P<0.05)and less intraoperative bleeding(0.30±0.51 mL vs 1.35±1.36 mL,P<0.05).VAS pain scores at 2 h,1 d,and 3 d post-operation were consistently lower in the laser group(P<0.05).Wound healing was faster(10.53±2.38 d vs 13.27±1.88 d,P<0.05),and complications were less frequent(6.67%vs 40%,P<0.05).At 6 months,the laser group showed greater reduction in midline diastema and better tooth alignment(P<0.05).Conclusion Er:YAG laser has significant advantages in upper labial tie revision in replacement teeth children,which can effectively shorten the operation time,reduce intraoperative bleeding,alleviate early postoperative pain,promote rapid healing of wounds,reduce the incidence of complications,and have better results in improving tooth alignment and reducing the gap,providing a better quality treatment option for the oral health of replacement teeth children.
Keywords：Er:YAG laserchildrenupper lip tie revisionefficacy
Publication Date：2025-10-28
Online Publishing Date：2025-11-19(First online date of this platform, not the publication date of the document)
Pages：6( 579-584 )