Scholarlink

Background <p>Reconstruction of advanced vertical and combined alveolar ridge defects still remains a challenge in implant dentistry. Digital technologies and virtual planning may potentially improve the predictability of guided bone regeneration (GBR). This study aimed to evaluate a fully digital, reverse-planning workflow for vertical ridge augmentation using membrane-cutting guides.</p> Methods <p>This retrospective case series included 15 surgical sites presenting with vertical or combined alveolar ridge defects. A digital workflow integrating cone-beam computed tomography (CBCT), intraoral scanning, and virtual prosthetic planning was used to simulate ideal implant positions and corresponding hard tissue augmentation. Membrane-cutting guides were designed and fabricated using additive manufacturing to shape dense polytetrafluoroethylene membranes. Vertical GBR was performed using a split-thickness flap design and a tent-pole approach. Linear and volumetric hard tissue changes were assessed by comparing baseline and 9-month postoperative CBCT scans.</p> Results <p>Significant vertical bone gain was observed at all measurement points (<i>p</i> = 0.007), with mean increases from 15.70&#xa0;mm ± 4.34&#xa0;mm to 19.96&#xa0;mm ± 3.83&#xa0;mm at the central site. The mean volumetric hard tissue gain was 755.33 mm<sup>3</sup> ± 411.22 mm<sup>3</sup>, closely matching the planned volume (757.50 mm<sup>3</sup> ± 417.78&#xa0;mm³), with no significant difference (<i>p</i> = 0.649). Using Spearman’s correlation, a strong positive correlation was found between planned and achieved volumes (Spearman’s ρ = 0.825, <i>p</i> = 0.0004). The mean augmentation efficacy was 20.13 ± 15.21 mm<sup>3</sup>/mm.</p> Conclusions <p>The proposed 3D-driven reverse-planning workflow enabled predictable vertical ridge augmentation with high agreement between planned and achieved outcomes. This approach represents a feasible and accessible alternative to fully customized systems; however, further prospective controlled studies are required to validate these findings.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

3D-driven alveolar ridge augmentation based on reverse planning: a retrospective case series study

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年7月4日

查看全文
  • Fanni Bolya-Orosz,
  • Balint Molnar,
  • Željka Perić Kačarević,
  • Peter Windisch,
  • Daniel Palkovics

摘要

Background

Reconstruction of advanced vertical and combined alveolar ridge defects still remains a challenge in implant dentistry. Digital technologies and virtual planning may potentially improve the predictability of guided bone regeneration (GBR). This study aimed to evaluate a fully digital, reverse-planning workflow for vertical ridge augmentation using membrane-cutting guides.

Methods

This retrospective case series included 15 surgical sites presenting with vertical or combined alveolar ridge defects. A digital workflow integrating cone-beam computed tomography (CBCT), intraoral scanning, and virtual prosthetic planning was used to simulate ideal implant positions and corresponding hard tissue augmentation. Membrane-cutting guides were designed and fabricated using additive manufacturing to shape dense polytetrafluoroethylene membranes. Vertical GBR was performed using a split-thickness flap design and a tent-pole approach. Linear and volumetric hard tissue changes were assessed by comparing baseline and 9-month postoperative CBCT scans.

Results

Significant vertical bone gain was observed at all measurement points (p = 0.007), with mean increases from 15.70 mm ± 4.34 mm to 19.96 mm ± 3.83 mm at the central site. The mean volumetric hard tissue gain was 755.33 mm3 ± 411.22 mm3, closely matching the planned volume (757.50 mm3 ± 417.78 mm³), with no significant difference (p = 0.649). Using Spearman’s correlation, a strong positive correlation was found between planned and achieved volumes (Spearman’s ρ = 0.825, p = 0.0004). The mean augmentation efficacy was 20.13 ± 15.21 mm3/mm.

Conclusions

The proposed 3D-driven reverse-planning workflow enabled predictable vertical ridge augmentation with high agreement between planned and achieved outcomes. This approach represents a feasible and accessible alternative to fully customized systems; however, further prospective controlled studies are required to validate these findings.