摘要
为了探讨下颌后牙游离缺失存在刃状牙槽嵴时的治疗方法,本病例采用二次骨劈开配合引导骨再生(GBR)后延期种植。针对下颌牙槽嵴顶宽度不足,符合骨劈开适应证的患者,实施二阶段骨劈开:首次手术行骨皮质劈开以促进骨改建;术后1个月行二次骨劈开并同期植入种植体,联合GBR完成水平骨增量。结果可见水平骨量(牙槽骨宽度)增加4~5 mm,满足了临床种植要求,同时减少了种植过程中种植体颊舌侧暴露的风险,减少了手术创伤,缩短了治疗周期,但2年后随访发现术区颊侧骨板存在吸收(0.1~0.3 mm/年)。因此,二次骨劈开式种植法为下颌后牙区牙槽嵴重度狭窄(宽度≤3 mm)患者提供诊疗选择,但需关注远期骨吸收问题。
This paper report a case of delayed implantation using staged ridge split combined with guided bone regeneration(GBR)in a patient with a knife-edge alveolar ridge due to free-end edentulism in the posterior mandible.For a patient with insufficient alveolar ridge crest width in the mandible who met the indications for ridge splitting,a two-stage ridge split was performed.The first surgery involved splitting the cortical bone to promote bone remodeling.One month later,a second ridge split was carried out with simultaneous implant placement,combined with GBR to achieve horizontal ridge augmentation.The horizontal alveolar bone width increased by 4~5 mm,meeting clinical requirements for implantation while reducing the risk of buccolingual implant exposure,minimizing surgical trauma,and shortening the treatment period.However,a two-year follow-up revealed buccal bone plate resorption in the surgical area at a rate of 0.1~0.3 mm/year.The staged ridge split technique provides a treatment option for patients with severe horizontal alveolar ridge deficiency(width≤3 mm)in the posterior mandible,but attention should be paid to the issue of long-term bone resorption.
作者
徐微
刘健忠
王予江
Xu Wei;Liu Jianzhong;Wang Yujiang(Affiliated Stomatological Hospital of Nanchang University,Jiangxi Key Laboratory of Oral Biomedical Research,Jiangxi Clinical Research Center for Oral Diseases,Nanchang 330006,Jiangxi,China)
出处
《中国口腔种植学杂志》
2025年第4期388-392,共5页
Chinese Journal of Oral Implantology
关键词
二次骨劈开
种植
下颌磨牙区
牙槽嵴狭窄
引导骨再生
Staged ridge split
Implant
Mandibular molar region
Alveolar ridge deficiency
Guided bone regeneration
