Three-dimensional imaging analysis of CAD/CAM custom-milled versus prefabricated allogeneic block remodelling at 6 months and long-term follow-up of dental implants: A retrospective cohort study

IF 5.8 1区医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE Journal of Clinical Periodontology Pub Date : 2024-05-06 DOI:10.1111/jcpe.13995

Anna Seidel, Yago Leira, Pilar Batalla, Leticia Caneiro, Manfred Wichmann, Juan Blanco

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Abstract

Aim

This retrospective cohort study aimed to volumetrically investigate the bone stability rate of prefabricated allogeneic bone blocks (PBB) and computer-aided design (CAD)/computer-aided manufacturing (CAM) custom-milled allogeneic bone blocks (CCBB) for ridge augmentation.

Materials and Methods

Nineteen patients were treated with 20 allografts: 11 CCBB, 9 PBB; 10 in the maxilla and 10 in the mandible. Clinical treatment history and cone beam computed tomography scans before surgery (t₀), directly after graft surgery (t₁) and after 6 months of healing prior to implant insertion (t₂) were evaluated using a three-dimensional evaluation software for absolute bone volume, stability as well as vertical and horizontal bone gain. Furthermore, the inserted implants were analysed for survival, marginal bone loss (MBL) and complications for a mean follow-up period of 43.75 (±33.94) months.

Results

A mean absolute volume of 2228.1 mm³ (±1205) was grafted at t₁. The bone stability rate was 87.6% (±9.9) for CCBB and 83.0% (±14.5) for PBB. The stability was higher in the maxilla (91.6%) than in the mandible (79.53%). Surgery time of PBB was longer than for CCBB (mean Δ = 52 min). The survival rate of the inserted implants was 100% with a mean MBL of 0.41 mm (±0.37).

Conclusion

The clinical performance of both allograft block designs was equally satisfactory for vertical and horizontal bone grafting prior to implant placement.

Clinical Trial Registration

ClinicalTrials.gov: NCT06027710.

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牙科植入物 6 个月和长期随访时，CAD/CAM 定制铣制与预制异体块重塑的三维成像分析：一项回顾性队列研究。

目的：这项回顾性队列研究旨在从体积上调查预制同种异体骨块（PBB）和计算机辅助设计（CAD）/计算机辅助制造（CAM）定制铣制同种异体骨块（CCBB）用于牙脊增量的骨稳定率：19名患者接受了20例同种异体骨移植治疗：11例CCBB，9例PBB；上颌骨10例，下颌骨10例。手术前（t0）、移植物手术后（t1）和种植体植入前（t2）6个月愈合后，使用三维评估软件对临床治疗史和锥形束计算机断层扫描进行评估，以确定绝对骨量、稳定性以及垂直和水平骨增量。此外，在平均 43.75 (±33.94) 个月的随访期内，还对植入种植体的存活率、边缘骨损失（MBL）和并发症进行了分析：结果：第 1 次植骨的平均绝对体积为 2228.1 mm3（±1205）。CCBB和PBB的骨稳定率分别为87.6%（±9.9）和83.0%（±14.5）。上颌骨的稳定性（91.6%）高于下颌骨（79.53%）。PBB手术时间长于CCBB（平均Δ = 52分钟）。植入种植体的存活率为100%，平均MBL为0.41毫米（±0.37）：结论：对于种植体植入前的垂直和水平骨移植，两种同种异体移植块设计的临床表现同样令人满意：临床试验注册：ClinicalTrials.gov：临床试验注册：ClinicalTrials.gov：NCT06027710。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Clinical Periodontology 医学-牙科与口腔外科

CiteScore

13.30

自引率

10.40%

发文量

175

审稿时长

3-8 weeks

期刊介绍： Journal of Clinical Periodontology was founded by the British, Dutch, French, German, Scandinavian, and Swiss Societies of Periodontology. The aim of the Journal of Clinical Periodontology is to provide the platform for exchange of scientific and clinical progress in the field of Periodontology and allied disciplines, and to do so at the highest possible level. The Journal also aims to facilitate the application of new scientific knowledge to the daily practice of the concerned disciplines and addresses both practicing clinicians and academics. The Journal is the official publication of the European Federation of Periodontology but wishes to retain its international scope. The Journal publishes original contributions of high scientific merit in the fields of periodontology and implant dentistry. Its scope encompasses the physiology and pathology of the periodontium, the tissue integration of dental implants, the biology and the modulation of periodontal and alveolar bone healing and regeneration, diagnosis, epidemiology, prevention and therapy of periodontal disease, the clinical aspects of tooth replacement with dental implants, and the comprehensive rehabilitation of the periodontal patient. Review articles by experts on new developments in basic and applied periodontal science and associated dental disciplines, advances in periodontal or implant techniques and procedures, and case reports which illustrate important new information are also welcome.