1,721,214 research outputs found
A new palatal distractor device for bodily movement of maxillary bones by rigid self-locking mini plates and screws system
No full textJ Craniofac Surg. 2013 Jul;24(4):1341-6. doi: 10.1097/SCS.0b013e31828041a7.
A new palatal distractor device for bodily movement of maxillary bones by rigid self-locking miniplates and screws system.
Cortese A, Savastano M, Cantone A, Claudio PP.
Source
Department of Medicine and Surgery, University of Salerno, Italy.
Abstract
METHODS:
A new palatal distractor device for bodily movement of the maxillary bones after complete segmented Le Fort I osteotomy for 1-stage transversal distraction and tridimensional repositioning on 1 patient is presented. The new distractor has an intrinsic tridimensional rigidity also in the fixation system by self-locking miniplates and screws for better control of the 2 maxillary fragments during distraction.
RESULTS:
Le Fort I distraction and repositioning procedure in association with a bilateral sagittal split osteotomy were performed on 1 patient with complete solution of the cross-bite and class III malocclusion. Results of dental and cephalometric analysis performed before surgery (T1), after surgery and distraction time (T2), and 18 months after surgery and orthodontic appliance removal (T3) are reported.
CONCLUSIONS:
No complications were encountered using the new distractor device. Advantages of this device and technique are presented including improved rigidity of both distraction (jackscrew) and fixation (4 self-locking miniplates and screws) systems resulting in complete control of the position of the 2 maxillary fragments during distraction and surgery. In addition, this new device allows resuming palatal distraction in the event of cross-bite relapse without causing dental-related problems or the risks of screw slackening
One-step transversal palatal distraction and maxillary repositioning: technical considerations, advantages, and long-term stability.
Full text linkOne-step transversal palatal distraction and maxillary repositioning: technical considerations, advantages, and long-term stability.
Cortese A, Savastano M, Savastano G, Claudio PP.
Source
Department of Oral and Maxillofacial Sciences, University of Naples Federico II, Naples, Italy.
Abstract
BACKGROUND:
Transversal maxillary hypoplasia in adolescence is a frequently seen pathology, which can be treated with a combination of surgery and orthodontic treatment to widen the maxilla in skeletally matured patients.We evaluated the advantages of a new surgical technique: Le Fort I distraction osteogenesis using a bone-borne device. Because relapse is one of the main problems in surgical maxillary expansion, long-term stability of this new technique was evaluated.
METHODS:
Data from 4 adult patients with maxillary restriction, class III malocclusion, or maxillary malposition were collected preoperatively, 4 months after distraction, and 5 years after distraction. Measurements were recorded on dental models to detect palatal expansion at dental level; cephalograms by lateral and posteroanterior plane were analyzed to detect maxillary movements.
RESULTS:
Maxillary measurements were substantially stable 5 years after distractions. Only minor dental movements occurred at the dental analysis after 5 years related to a lack of orthodontic contention without any compromise of the dental result (no crossbite relapse and class I stability).
CONCLUSIONS:
Le Fort I with down-fracture for expansion and repositioning by bone-borne distractor device cannot be used to simultaneously widen, advance, and vertically reposition the maxilla without causing healing problems, particularly using a rigid distraction device. Long-term stability can be achieved; however, further studies with a larger number of patients will be necessary for better evaluation.
PMID: 21959418 [PubMed - indexed for MEDLINE
Computer Aided Elecrtical Measurement Experiments
No full text5-th IMEKO International Symposium on Intelligent Measuremen
An Electrical Network Simulation Environment Running on DSP Devices
No full textInternatinal Summer Computer Simulation Conferenc
Digital transformation and industry 4.0. Empirical analysis on the evolution of companies in the large-scale retail trade
No full textThe rapid acceleration of technological development in recent years has profoundly revolutionized the way companies are managed, pushing them to propose new business models, products and marketing strategies.
At the same time, the role of the consumer has undergone a radical evolution, becoming a central figure for the company, which needs effective two-way communication that improves interaction with customers and meets their growing expectations.
The current scenario is therefore shaped by digital transformation, a term used to indicate a set of technological, cultural, organizational and social changes that involve all companies and market sectors. In order to better understand the impact that this process, through the complex paradigm of Industry 4.0, has on Italian firms, a survey was conducted that involves companies operating in the large-scale retail trade (GDO) sector. This industrial sector was chosen as it is a context increasingly characterized by automation and digitalization of sales processes.
Based on the results obtained through an online survey on a sample of 130 companies, this paper proposes some significant considerations on the diffusion of digital technologies, on the
benefits they bring as well as on the managerial and organizational impacts generated in the business context under consideration
The Adoption of Information Systems for the Analysis of the Life Cycle of Hazelnuts
No full textAttention to the different phases of the life cycle of agri-food products by producers and consumers is an aspect that is growing at the same speed with which the agricultural sector is introducing innovations brought by digital transformation, evolving into agri-tech.
Therefore, it becomes necessary to evaluate the sustainability of the entire agri-food chain to understand where and how to intervene to improve its efficiency and quality. This work, through a case study relating to an Italian agricultural company operating in the hazelnut sector, aims to analyse the impacts of the life cycle of this product considering the path from the raw material to the final treatment before the hazelnuts are delivered to the transformation company. The final goal is to assess the potential critical issues concerning hazelnut production, with a view to improving the efficiency of the life cycle stages using innovative information systems set up ad hoc. As a result, our findings describe a best practice of a system able to support the company in the management of its data, which can be updated directly in-house, continuously and in a coordinated manne
WE-DSP32C For Measurement Devices Real Time Simulation
No full textInternatinal Summer Computer Simulation Conferenc
An Electrical Network Simulation Environment Running on DSP Devices
No full textInternatinal Summer Computer Simulation Conferenc
Computer Aided Elecrtical Measurement Experiments
No full text5-th IMEKO International Symposium on Intelligent Measuremen
Simulation of an Electrical Measurement Laboratory
No full text11-th World Congress on System Simulation and Scientific Computatio
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