Evaluation of the therapeutic effect and analysis of the causes of complications of allogeneic decellularized dermal matrix grafts in the treatment of gingival recession using tunneling method
10.3969/j.issn.1001-3733.2025.05.013
- VernacularTitle:同种异体脱细胞真皮基质移植物在隧道技术治疗牙龈退缩中的疗效评价及并发症的原因分析
- Author:
Junjie ZHAO
1
;
Yanfen LI
1
;
Jianping XIAO
1
;
Cheng XU
1
;
Baochun TAN
1
Author Information
1. 210008,南京大学医学院附属口腔医院·南京市口腔医院牙周病科
- Publication Type:Journal Article
- Keywords:
Gingival recession;
Tunneling technique;
Complications
- From:
Journal of Practical Stomatology
2025;41(5):656-661
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To evaluate the efficacy and analyze the causes of complications of allogeneic decellularized dermal matrix grafts in the treatment of gingival recession using tunneling technology.Methods:Sixty patients with single or multiple gingival re-cession were randomly divided into an allogeneic decellularized matrix(ADM)group and a connective tissue(SCTG)group.Tunne-ling technique(TUN)were used in both groups to cover the root surface,and the gingival margin position,gingival margin morpholo-gy,and mucogingival junction position of the affected teeth at 1 week,3 weeks,3 months,and 6 months after surgery were observed.Check and record the gingival recession depth(RD)and mean root coverage(MRC)at the implant site before and 6 months after surgery.Record patient satisfaction at 3 weeks and 6 months after surgery.Results:Compared with the traditional SCTG group,the MRC of the ADM group was significantly lower before surgery and 6 months after surgery(P＜0.05).The satisfaction level of the ADM group was higher 3 weeks after surgery,with a significant difference compared to the SCTG group(P＜0.05).But 6 months after surgery,the satisfaction levels of the two groups tended to be consistent,with no significant difference.After TUN+ADM surgery,there was 1 case of abscess infection lesion,and another 3 cases showed local tissue necrosis at the gingival margin one week after surgery.After 3 months of treatment,the gingival color of these 4 patients was pink and tough texture,without swelling and bleeding.Conclusion:Although ADM is slightly inferior to SCTG in the treatment of gingival recession,it may be related to poor postoperative tissue healing complications.However,as long as it is handled properly,long-term follow-up observations have shown that gingival tissue can still achieve complete healing.TUN+ADM is a highly effective treatment for gingival recession and is suitable for further clinical application.
