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The Centripetal Build-Up Technique for Restoration of Interdental Contact Points – Case Report

Abstract

This article presents an important topic in the field of dental medicine. Reconstruction of the contact point in the lateral interdental area is obtained using a large number of type techniques, with different materials and instruments. The centripetal build up technique involves the initial restoration of the proximal absent wall, thus transforming the second-class cavity into a first-class cavity, followed by it’s restoration. This technique provide a correct, appropriate contact point and an easy restoration of the occlusal morphology.

Open access
Results of Functional Endoscopic Sinus Surgery in Patients with Mucosal Contact Points Suffering From Chronic Daily Headache Non-Responding to Medications

Summary

Pain is a worldwide health disorder causing depression and decrease in daily activities, as well as cognitive, memory and attention impairments. In this regard, mucosal contact headache is a second type of headache disorder in the International Classification of Headache Disorders. Some studies have reported that contact points may work as triggers in the initiation of chronic daily headache.

The aim of the paper was to evaluate the effects of surgical removal of contact points on relief of chronic daily headache.

In this prospective study, thirty patients underwent functional endoscopic sinus surgery and the intensity of pain was examined by visual analogue scale (VAS) before and after a six-month follow-up.

Study population included 13 (43.3%) males and 17 (56.6%) females aged from 14 to 54 years, with mean age of 30 years. After surgical removal of contact points, the mean headache (days/month) was decreased from 8.3±6.5 to 1.5±1.7 days (P< 0.005). The length of daily headache was reduced from 3.5±3.1 hour/day to 36±0.8 minute/day. Based on the VAS pain rating scale, the severity of pain decreased from 5.2±1.8 (preoperative) to 1.47±1.3 (postoperative) (P:0.013). Nasal septal deviation was the commonest anatomical variation identified in these patients (21 subjects-70 %).

Surgical removal of contact points can improve the therapeutic outcomes in management of patients with chronic daily headache. These contact points may act as triggers for chronic daily headache.

Open access
Researches on Inertial Mechatronic Motion Analysis Systems, Based on MEMS

Abstract

The aim of this paper is to provide an introduction into the inertial motion analysis field, focusing its attention on the analysis that is performed using modern mechatronic inertial motion capture systems, highlighting both the advantages and drawbacks of using such a system and outlining the main constituent elements of these systems as well as the necessary steps to be carried out in order to be able to accomplish such analysis.

A modern mechatronic inertial motion analysis system’s evolution it’s based on MEMS (Micro-Electro-Mechanical-Systems) sensory network, each of which contains a combination of accelerometer, gyroscope, magnetometer. The signals from these MEMS are processed, by a microcontroller, using advanced algorithms in order to provide accurate data regarding body’s segments kinematics, global positioning and magnetic field. Those data are being transferred to a biomechanical model for the analysis. Despite its tremendous advantages, such as portability and real-time analysis capabilities, over alternative motion analysis systems, such as optical or mechanical systems, that based on external transmitters and/or video camera networks, restricting their use to special laboratory conditions and/or large workspace, mechatronic inertial systems are not based on an external infrastructure, they present a major disadvantage, namely the positional drift. The estimation of the human subject body’s segments positions and orientation, absolutely requires an initial calibration procedure, called „sensor to segment calibration”, that starts from the positional and orientation information received from the MEMS network, which are then transferred onto a biomechanical (scaled) model of the human body.

Open access
Marketing Activities of Health Care Organizations and Patient Safety

Abstract

The main goal of this publication is to show the areas where patients and marketing activities of health care organizations overlap. It shows regulations which ensure safety of a patient, and presents a path model for supporting patients in case some regularities stemming from the above mentioned contact points arise.

Open access
The structure of recurrent circuits of military aircraft – selected problems based on Su-22

Abstract

This article comprehensively addresses the problems associated with the structure of recurrent circuits of military aircraft with metal fuselage structure. The authors describe the issues concerning the usage of the fuselage as a recurrent circuit of electric current and with negative conductors connecting the fuselage with negative terminals of the receiver or the source. The military aircraft are frequently operated under harsh conditions of increased humidity, dustiness and variable temperatures. All these factors as mentioned above contribute to the occurrence of intensive electrochemical corrosion at the contact points of airframe’s elements or electrical conductors’ with the fuselage. Such contact surfaces should be subject to monitoring – AFIT has developed the numerous procedures for each aircraft.

Open access
Effect of Steel Cord Tension During the Lapping on Steel Cord Straightness After Lapping

Abstract

One of the variable parameters in steel cord twisting technologies is the steel cord tension before final reel. Changing this parameter is used to produce steel cord with high quality of straightness. Steel cord straightness is the most important technological parameter after tensile strength. It is simple to change the value of steel cord tension with special mechanisms or devices in composition of cable machines and twisting machines. It is very important to know the measures of tension setting. Low tension causes bad quality of steel cord and defects. High tension may brake steel cord during the twisting and lapping. Also high tension may change the mechanical properties of steel wire in the steel cord construction. The influence of steel cord tension in the range from 9 N to 30 N on active equivalent stresses in wire cross section and macro displacements of wire contact points in steel cord construction was shown. Effect of steel cord tension during the lapping on steel cord straightness after lapping was shown. In this research the optimal tension for producing steel cord 2x0.30HT was defined with numerical simulation, finite element analysis and criteria method. The optimal value of tension for other steel cord constructions will change, because of number of wires and its hardness.

Open access
Modelling of Terrain Surface

Abstract

In this contribution, we deal with the methodology of visualisation of terrain surface, on which experimental measurements of driving manoeuvres of an agricultural technological vehicle MT8-222 were performed. The introduced methodology uses a defined approach when determining the dynamic stability of agricultural vehicles following the standard STN 47 017. Records of the centre of gravity accelerations were obtained from driving manoeuvres at every instance of time during the drive. From records of accelerations and by using Euler‘s parameters with respect to the inertial system, there were evaluated contact points of the wheel with the terrain. Performed driving manoeuvres consisted of movement in the direction of down grade slope as well as in the direction of tractive movement on the slope. We created a model of terrain surface in the Surfer® program from obtained experimental data. Next, by using supporting commands in Matlab®, we created an algorithm for visualisation of terrain surface. Following this algorithm, there was created another model of terrain surface. Both visualisations of terrain surface are depicted in Figs 4 and 5.

Open access
Regulation of housing quality in Ireland: What can be learned from food safety?

Local Government. Department of Housing, Planning and Local Government. (2017a). Report of the Expert Panel on Concrete Blocks . Dublin: Department of Housing, Planning and Local Government. Department of Housing, Planning and Local Government. (2017b). Building control officers – Contact points. Retrieved from www.housing.gov.ie/housing/building-standards/other/building-control-officers-contact-points [21 March 2018]. Devaney, L. (2016). Good governance? Perceptions of accountability, transparency and effectiveness in Irish food risk governance

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Dynamic optimal grasping of a circular object with gravity using robotic soft-fingertips

, CA, USA, pp. 377-382. Kim, B., Oh, S., Yi, B. and Suh, I.H. (2001). Optimal grasping based on non-dimensionalized performance indices, IEEE/RSJ International Conference on Intelligent Robots and Systems, Maui, HI, USA, pp. 949-956. Marigo, A. and Bichi, A. (2007). Rolling bodies with regular surface: Controllability theory and applications, IEEE Transactions on Automatic Control 45(9): 1586-1599. Nakashima, A., Nagase, K. and Hayakawa, Y. (2005). Simultaneous control of grasping/manipulation and contact points with

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Use of codeine and NSAID combination in rhinogenic headache

IR, Hamed MA, Salem SM, Suurna MV. Mucosal contact points and paranasal sinus pneumatization: Does radiology predict headache causality? Laryngoscope. 2015;125(9):2021-6. DOI: 10.1002/lary.25194. Epub 2015 Feb 25. 5. Kim SH. A case of nasal septal deviation-induced rhinogenic contact point otalgia. Am J Otolaryngol. 2015;36(3):451-5. DOI: 10.1016/j.amjoto.2015.01.008. Epub 2015 Jan 14. 6. Ziegler DK. Opioids in headache treatment. Is There a role? Neurol Clin. 1997;15(1):199-207. 7. Burgos-Vega C, Moy J, Dussor G. Meningeal afferent signaling and

Open access