Freire Jéssica de Oliveira Alvarenga, Zavanelli Adriana Cristina, Mazaro José Vitor Quinelli, Zavanelli Ricardo Alexandre, de Alexandre Rodrigo Sversut, Neto Otavio Marino Dos Santos
São Paulo State University (UNESP) - School of Dentistry, Araçatuba - Rua José Bonifácio, 1193 - Vila Mendonça - Araçatuba - 16015-050 - Brazil.
Federal University of Goiás (UFG), Faculty of Dentistry - Av. Universitária, s/n - Setor Leste Universitário - Goiânia - 74605-020 - Brazil.
J Clin Exp Dent. 2025 May 1;17(5):e587-e593. doi: 10.4317/jced.62598. eCollection 2025 May.
The fully edentulous population in Brazil comprises approximately 22 million individuals, highlighting the importance of their functional, aesthetic, and psychosocial rehabilitation. Complete dentures (CD) remain the most accessible treatment option for these patients, supported by well-established scientific techniques. The introduction of the digital workflow in Dental Prosthetics has streamlined production, reducing clinical time and material consumption. While the digital workflow is well-established in fixed prosthetics, its application in CD still lacks equivalent validation. Given the challenges of achieving retention, stability, comfort, and aesthetics, it remains uncertain whether the digital workflow can deliver outcomes comparable to those of the conventional analog method.
A qualitative literature review was conducted through searches in the PUBMED database using the terms 'digital complete denture,' 'complete denture,' 'scanning,' 'intraoral scanning,' and 'CAD-CAM,' covering the period from 1994 to 2024. Initially, articles were screened based on their titles. Subsequently, the abstracts of the selected studies were analyzed, and those deemed relevant were read in full.
Intraoral scanning of edentulous ridges exhibits accuracy comparable to conventional impressions in static áreas, however, reproducing dynamic regions remains a challenge. The adaptation of digital complete dentures (DCDs) obtained through intraoral scanning is considered clinically acceptable, although retention outcomes remain controversial. Milled polymethyl methacrylate (PMMA) demonstrates mechanical properties equal to or superior to those of thermopolymerizable PMMA. In contrast, 3D-printed resins exhibit mechanical properties and longevity similar to or inferior to both milled and thermopolymerizable PMMA. Overall, patient acceptance of DCDs appears to be positive.
DCDs can be manufactured more efficiently and rapidly, with clinical outcomes and patient acceptance comparable to conventional CDs. However, further scientific evidence and long-term validation are still required. Complete dentures, CAD/CAM, digital complete dentures, digital workflow, intraoral scanning.
巴西的无牙颌人群约有2200万，这凸显了对他们进行功能、美学和心理社会康复的重要性。全口义齿（CD）仍然是这些患者最容易获得的治疗选择，有成熟的科学技术支持。牙科修复中数字工作流程的引入简化了生产，减少了临床时间和材料消耗。虽然数字工作流程在固定修复中已得到充分确立，但其在全口义齿中的应用仍缺乏同等的验证。鉴于实现固位、稳定、舒适和美观方面存在挑战，数字工作流程能否产生与传统模拟方法相当的效果仍不确定。
通过在PUBMED数据库中搜索“数字全口义齿”“全口义齿”“扫描”“口内扫描”和“CAD - CAM”等术语，进行了一项定性文献综述，涵盖1994年至2024年期间。最初，根据文章标题进行筛选。随后，对所选研究的摘要进行分析，将那些被认为相关的文章全文阅读。
无牙颌牙槽嵴的口内扫描在静态区域显示出与传统印模相当的准确性，然而，再现动态区域仍然是一个挑战。通过口内扫描获得的数字全口义齿（DCD）的适配性在临床上被认为是可接受的，尽管固位效果仍存在争议。铣削聚甲基丙烯酸甲酯（PMMA）显示出与热聚PMMA相当或更优的机械性能。相比之下，3D打印树脂的机械性能和耐久性与铣削和热聚PMMA相似或更差。总体而言，患者对DCD的接受度似乎是积极的。
DCD可以更高效、快速地制造，其临床效果和患者接受度与传统CD相当。然而，仍需要进一步的科学证据和长期验证。全口义齿、CAD/CAM、数字全口义齿、数字工作流程、口内扫描。
