Rehabilitación de rebordes severamente atróficos mediante prótesis híbridas confeccionadas con tecnología de sinterización láser cromo-cobalto; reporte de caso

Revista clínica de periodoncia, implantología y rehabilitación oral Pub Date : 2016-04-01 DOI:10.1016/j.piro.2015.03.007

Natalia Marcus Vaccarezza , Francisco Marchesani Carrasco , Fernando Grandón Villegas , Blas Galdames Gutiérrez , Daniela Niklitschek Tapia , Leyla Millanao Caro

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Abstract

Implant-retained metal-acrylic hybrid prostheses provide a functional and aesthetic solution to rehabilitate severely atrophic complete arches, and are an alternative to more complex reconstructive surgeries. the prosthetic substructure must adjust passively on the implants. With the CAD-CAM technology, the manual design of the substructures, by lost wax, has been replaced by digital design. Laser sintering technology in the production of metal substructures has advantages, such as, decreased accumulation of errors, fabrication speed and design of complex geometry, according to the needs of the case.

Case report

Hybrid prostheses in the maxilla (8 implants) and jaw (Revitalize®) were planned in a patient with no teeth, using Co-Cr alloy substructures by laser sintering, which have similar long-term results as obtained with noble structures, but with lower cost and high predictability.

Conclusions

Hybrid prostheses with Co-Cr substructures using laser sintering could improve prognosis by incorporating CAD-CAM in their preparation to obtain fine adjustments.

查看原文本刊更多论文

种植体保留的金属-丙烯酸混合假体为修复严重萎缩的完整弓提供了功能和美学的解决方案，是更复杂的重建手术的替代方案。假体的下部结构必须在植入物上被动调整。随着CAD-CAM技术的发展，手工设计的子结构，失去蜡，已经被数字设计所取代。激光烧结技术在金属子结构的生产中具有误差积累少、加工速度快、几何形状复杂等优点，可根据实际情况进行设计。病例报告:在无牙患者中，采用激光烧结的Co-Cr合金亚结构，计划在上颌(8个种植体)和颌骨(revize®)中使用复合假体，其长期效果与高档结构相似，但成本较低，可预测性高。结论激光烧结Co-Cr亚结构复合假体制备中结合CAD-CAM可获得精细调节，可改善预后。

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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Revista clínica de periodoncia, implantología y rehabilitación oral

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