改良冠向复位隧道技术联合双交叉悬吊缝合技术治疗多牙位牙龈退缩1例

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[中图分类号] R781.4 [文献标志码] B [doi] 10.7518/gjkq.2025059

Multipleadjacent gingival recessons using modified coronally advanced tunnel and double-cross suspension suturetechnique：acasereport

Gao ，ChengJiajial2，Wang GeSongl，2

1.Dept.ofOraledicine，hooloftomatologyuniMedicalUniversityunyi563o99hina；2.Dept.ofido tics，AfiliatedStomatologicalHospitalofZunyiMedicalUniversity，Zunyi563o99，China

Supportedby：ScienceandTechnology CooperationFoundationofZunyi[ZunshiKeheHZ（2024）347]；National ClinicalKeySpecialtyConstructionManuscript（MedicalAdministrationLetterfromtheNational HealthOffce[2023]213） Correspondence： Gao Li， Email： 467278759@qq.com

[Abstract]This article reports acaseofmultiple adjacent gingival recessions （MAGR）treated withamodifiedcoronallyadvanced tunnel （MCAT） techniquecombined withasubepithelial connective tisse graft （SCTG），utilizinga doublecross suspension suture technique.The patient primarily presents with ClassI and Class I gingival recession at multiple tooth sitesaccording totheCairoclassification.The treatmentprotocolinvolved initial periodontal nonsurgical therapy，followed by staged root coverage procedures using a minimally invasive MCAT technique with SCTG and doublecross suspension suture technique. Postoperative folow-ups at 12，24，and 36 months demonstrated 100 % root coverage， favorable aesthetic outcomes in terms of color match and contour，and stable long-term therapeutic results.

[Key words] multiple adjacent gingival recesion；root coverage；；modified coronally advanced tunnel technology； double-cross suspension suture technique

牙龈退缩（gingivalrecession）是指牙龈边缘从原本的生理性位置（釉牙骨质界冠方 1～2 m m 处）向根方退缩，导致牙根表面的病理性暴露，牙龈退缩可发生于牙周健康者，也可发生于口腔卫生差及牙周病患者；导致牙龈退缩的危险因素可能是物理（牙齿突出、牙弓不齐）、机械（不当刷牙、正畸力及咬合力等）及化学药物2（如牙齿漂白剂等）刺激对牙龈组织的直接影响，也有可能是牙龈组织的炎症反应。（剩余11342字）