305,591 research outputs found
Malte e calcestruzzi con aggregati riciclati
No full textcoordinatore: Prof. V. A. Rossetti, Università Politecnica delle Marche, Ancona, Ital
Recupero e riutilizzo di materiali da demolizione: aspetti tecnico-economici e recenti sviluppi della ricerca
No full textTavola rotonda sul tema “Ricerca, sviluppo e marketing sui materiali cementizi per un progresso sostenibile ed eco-compatibile
Digital Options for the Rehabilitation of the Atrophic Edentulous Maxilla
No full textObjective:
The aim of this study was to describe fully digital workflows for the Prosthetically Guided Reconstructive Surgery (PGRS) of edentulous patients affected by atrophic maxilla.
Methods:
The preoperative provisional removable full-denture was used as starting point to determine aesthetics parameters, occlusion of the final prosthetic rehabilitation as well as the respective maxillary implant positions using conventional softwares for the diagnosis of available bone and for the design of the full-arch prosthesis. The regenerative option (bone augmentation using customized titanium mesh), or the long implant option (navigated zygomatic implants) were both digitally projected depending on the patient needs. After implants healing, two sets of digital impressions were acquired: set #1 was the digital impression of implant positions; set #2 was the digitalization of the provisional full denture together with the impression of the rear side. The two sets were digitally combined into a single file. The metal framework of the final prosthesis was designed and manufactured using digital hybrid manufacturing technology and clinically evaluated with Sheffield test and radiographs; at the same time a resin prototype was produced for clinical try-in of aesthetic and functional parameters.
Results:
Aesthetic parameters and the occlusion of the provisional removable full-denture were digitally transferred to the provisional and definitive full-arch fixed prosthesis. The digital models were 3D-printed in occlusion to finalize in three steps the full-arch prosthesis.
Conclusions:
The workflows of PGRS allowed realizing the full process of the prosthetic and surgical rehabilitation of edentulous patients with atrophic maxilla using a complete digital CAD-CAM technology.
1: Cordaro L, Amadé DS, Cordaro M. Clinical results of alveolar ridge augmentation with mandibular block bone grafts in partially edentulous patients prior to implant placement. Clin Oral Implants Res. 2002 Feb;13(1):103-11. PubMed PMID: 12005140.
2: Pellegrino G, Lizio G, Corinaldesi G, Marchetti C. Titanium Mesh Technique in Rehabilitation of Totally Edentulous Atrophic Maxillae: A Retrospective Case Series. J Periodontol. 2016 May;87(5):519-28. doi: 10.1902/jop.2016.150432. Epub 2016 Jan 12. PubMed PMID: 26759078.
3: Tuminelli FJ, Walter LR, Neugarten J, Bedrossian E. Immediate loading of zygomatic implants: A systematic review of implant survival, prosthesis survival and potential complications. Eur J Oral Implantol. 2017;10 Suppl 1:79-87. Review. PubMed PMID: 28944370.
4: Ciocca L, Lizio G, Baldissara P, Sambuco A, Scotti R, Corinaldesi G. Prosthetically CAD-CAM-Guided Bone Augmentation of Atrophic Jaws Using Customized Titanium Mesh: Preliminary Results of an Open Prospective Study. J Oral Implantol. 2018 Apr;44(2):131-137. doi: 10.1563/aaid-joi-D-17-00125. Epub 2018 Jan 5. PubMed PMID: 29303418.
5: Ciocca L, Ragazzini S, Fantini M, Corinaldesi G, Scotti R. Work flow for the prosthetic rehabilitation of atrophic patients with a minimal-intervention CAD/CAM approach. J Prosthet Dent. 2015 Jul;114(1):22-6. doi: 10.1016/j.prosdent.2014.11.014. Epub 2015 Apr 7. PubMed PMID: 25862269
Recupero e riutilizzo dei materiali da demolizione per il confezionamento di malte e calcestruzzi
No full textrelatore Prof. Ing. Giacomo Moricon
Aggregati riciclati per calcestruzzo strutturale. Risultati e prospettive
No full text“L’innovazione delle strutture in calcestruzzo nella tradizione della Scienza e della Tecnica. Sicurezza di costruzione e sicurezza di servizio
Recycled aggregates and their role in self compacting concrete
No full textCourse organized by TWAS (Third World Academy of Science) e FORGEA International (Training and cooperation centre in the field of geo-mining and environment), Monteponi, Iglesias (CA), Italy (scientific director: Prof. S. Meriani
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Self compacting concrete: a route to high quality concrete structures
No full text“Capacity Building in Environment-related Issues: Recovery and Recycling of Construction Materials”, TWAS (Third World Academy of Science) e FORGEA International (Training and cooperation centre in the field of geo-mining and environment), Monteponi, Iglesias (CA), Italy (scientific director: Prof. S. Meriani
Self compacting concrete: a way to reuse industrial by-products
No full textAtti del VIII Convegno Nazionale sulla Scienza e Tecnologia dei Materiali, Aci Castello (CT)
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