口腔医学研究

口腔医学研究 ›› 2026, Vol. 42 ›› Issue (7): 584-590.DOI: 10.13701/j.cnki.kqyxyj.2026.07.006

• 口腔修复学研究 • 上一篇    下一篇

Dahl概念在前牙局部牙齿磨损修复中的应用评估

邓婷1,2, 张鹏坤1, 蒋忠伟1, 吴燕茹1,3, 王家伟1,3*   

  1. 1.口颌系统重建与再生全国重点实验室,口腔生物医学教育部重点实验室,口腔医学湖北省重点实验室,武汉大学口腔医(学)院 湖北 武汉 430079;
    2.武汉大学口腔医院菱角湖万达院区 湖北 武汉 430024;
    3.武汉大学口腔医院修复科 湖北 武汉 430079
  • 收稿日期:2026-03-19 发布日期:2026-07-22
  • 通讯作者: *王家伟,E-mail:wb000238@whu.edu.cn
  • 作者简介:邓婷(1987~ ),女,武汉人,硕士,主治医师,研究方向:数字化技术、微创与精准修复。
  • 基金资助:
    国家自然科学基金(编号:82170930)

Application of Dahl Concept in Restorative Treatment of Localized Anterior Tooth Wear

DENG Ting1,2, ZHANG Pengkun1, JIANG Zhongwei1, WU Yanru1,3, WANG Jiawei1,3*   

  1. 1. The State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan 430079, China;
    2. Lingjiaohu Wanda Branch, Hospital of Stomatology, Wuhan University, Wuhan 430024, China;
    3. Department of Prosthodontics, Hospital of Stomatology, Wuhan University, Wuhan 430079, China
  • Received:2026-03-19 Published:2026-07-22

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摘要： 目的: 评估Dahl概念在前牙区局部牙齿磨损导致修复空间不足时的应用效果。方法: 选取8例因前牙区明显磨损导致修复空间不足的患者为研究对象,采用Dahl牙合垫微创增加颌间距离后,完成固定修复。记录治疗周期及咬合间隙增加量,术前术后拍摄锥形束X射线计算机体层成像(cone-beam computed tomography, CBCT),观察颞下颌关节及相关牙的牙髓、牙周、牙根情况,修复结束后定期随访。结果: 所有患者均恢复了全牙列的广泛咬合接触,从佩戴Dahl牙合垫到恢复广泛咬合接触,最短治疗周期2个月,最长5个月,中位数3.9个月。咬合间隙增加1.5~4 mm,平均增加(2.5±0.4) mm,随访最长时间3年,最短时间1年,在治疗和随访期间未观察到相关牙牙周膜间隙增宽、牙根吸收或牙槽骨吸收现象,颞下颌关节常规检查和影像学检查无明显异常。结论: 当前牙区局部牙齿磨损或缺损导致修复空间不足、咬合高度升高量≤4 mm时,Dahl概念是一个有效、保守、相对安全的解决方案,但未来仍需要更多高质量临床研究来观察其远期效果。

关键词: Dahl概念, Dahl牙合垫, 前牙局部牙齿磨损, 咬合升高, 修复空间

Abstract: Objective: To investigate the clinical feasibility and preliminary efficacy of the Dahl Concept in the restorative treatment of localized anterior tooth wear. Methods: A total of 8 patients with insufficient restorative space caused by localized anterior tooth wear were enrolled in this study. The local occlusal elevation appliance (Dahl splint) was adopted to minimally invasively increase the intermaxillary distance, followed by the completion of fixed restorations. The treatment cycle and the amount of increased occlusal space were recorded. Cone-beam computed tomography (CBCT) was performed before treatment and prior to the fabrication of the final restorations to observe the temporomandibular joint (TMJ) as well as the pulp, periodontal, and root conditions of the treated teeth. Regular follow-up was conducted after the completion of restorations. Results: The treatment cycle from the application of the Dahl splint to the restoration of extensive occlusal contact ranged from a minimum of 2 months to a maximum of 5 months, with a median of 3.9 months. The follow-up period varied from 1 year (minimum) to 3 years (maximum). Finally, all patients regained extensive occlusal contact of the entire dentition, with the occlusal space increased by (1.5-4) mm and a mean increase of (2.5±0.4) mm. No widening of the periodontal ligament space, root resorption or alveolar bone resorption was observed in the treated teeth, and no significant imaging changes were found in the temporomandibular joints. Conclusion: When insufficient restorative space is caused by localized anterior tooth wear or defect, the Dahl Concept is an effective, conservative, and relatively safe solution. However, more high-quality clinical researches are required in the future to observe its long-term clinical efficacy.

Key words: Dahl concept, Dahl splint, local anterior tooth wear, occlusal elevation, restorative space