华西口腔医学杂志2025，Vol.43Issue(5)：679-688,10.DOI:10.7518/hxkq.2025.2024449
梯形瓣和角形瓣对引导骨再生术后黏膜血供及成骨效果的影响
Effect of trapezoidal and modified triangular flaps on mucosal blood supply and osteogenesis after guided bone re-generation
摘要
Abstract
Objective Color doppler flow imaging(CDFI)and cone-beam computed tomography(CBCT)were uti-lized to evaluate changes in mucosal vascular parameters and the osteogenic effects following guided bone regeneration(GBR)in the maxillary anterior region using trapezoidal or modified triangular flaps.Methods Patients undergoing sin-gle maxillary anterior dental implant surgery with GBR were randomly allocated into two groups:a trapezoidal flap group and a modified triangular flap group.After GBR surgery,the mucosal vascular parameters at the surgical site were assessed at various time intervals(preoperative,2 h,1 and 3 days,and 1,2,and 4 weeks postoperative)using CDFI.In addition,the effects of bone augmentation were evaluated through the analysis of CBCT images ob-tained preoperatively,2 h,and 6 months postoperative.Results The buccal mucosa in the edentulous area had a lower blood flow rate than the corresponding tooth in the same jaw,and the difference was statistically significant(P<0.001).The mucosal blood flow rate in the surgical area increased compared with that in the preoperative period.The peak flow rate was recorded at 2 weeks postoperatively and then decreased to levels comparable to those of the reference tooth.A statistically significant difference was observed between the two groups(P<0.05).The buccal alveolar ridge width of the implant platform was reduced by(1.3±0.9)mm in the trapezoidal flap group and(0.9±0.7)mm in the modified triangular flap group,respectively,at 6 months postoperatively,compared with 2 h postoperative.The buccal alveolar ridge width of the 5 mm from the implant platform was reduced by(0.9±0.6)mm and(0.3±0.6)mm,respectively.The buccal alveo-lar ridge width of the 10 mm from the implant platform was reduced by(0.6±0.8)mm and(0.2±0.6)mm,respectively.The height of the alveolar ridge was reduced by(1.9±1.4)mm and(1.4±1.3)mm.The change in graft volume was(136±78)mm3 and(114±85)mm3.However,the differences between the two groups were not statistically significant(P>0.05).Conclusion When a tooth is missing,blood flow to the buccal mucosa on the side of the missing tooth is re-duced.The modified triangular flap group demonstrated superior microcirculation of blood flow in the operative area af-ter GBR of the maxillary anterior teeth.Trapezoidal and modified triangular flaps achieved the anticipated bone augmen-tation during bone augmentation surgery in the maxillary anterior region,with no considerable effect on the changes in al-veolar bone size parameters.关键词
引导骨再生/彩色多普勒血流成像技术/梯形瓣/角形瓣Key words
guided bone regeneration/color doppler flow imaging/trapezoidal flap/modified triangular flap分类
医药卫生引用本文复制引用
陈双镇,张贤月,贾晓凤,夏荣,姜凡..梯形瓣和角形瓣对引导骨再生术后黏膜血供及成骨效果的影响[J].华西口腔医学杂志,2025,43(5):679-688,10.基金项目
Anhui Province Academic and Technical Leader Reserve Candidate Research Funding(2021H253) 安徽省学术和技术带头人后备人选科研活动经费资助项目(2021H253) （2021H253）
