scholarly journals Romanian dentists’ perception of flexible removable partial dentures

2021 ◽  
Vol 67 (1) ◽  
pp. 53-56
Author(s):  
Georgiana Dragomir ◽  
◽  
Alexandru Titus Farcasiu ◽  
Iulia Pascal ◽  
◽  
...  
Keyword(s):  
Patient Comfort ◽  
Study Group ◽  
Partial Denture ◽  
Clinical Evolution ◽  
Anonymous Questionnaire ◽  
Current Alternative ◽  
Aesthetic Properties ◽  
A Current ◽  
Over Time ◽  
Dental Prosthetics

Introduction. A flexible partial denture, as a treatment solution for partial edentulousness, is a current alternative in dental prosthetics, due to simplified design, aesthetic and biomechanical qualities of resin materials, that contribute to the favourable distribution of masticatory forces on the dental and mucosal support. Objective. This study aims to highlight the medical perception of Romanian dentists regarding the evolution of patients treated with flexible partial dentures. Material and method. The research was carried out over a period of two years (2017-2019), on a study group composed of 84 Romanian dentists. Subjects were asked to answer an anonymous questionnaire consisting of 14 closed questions, to outline frequently aspects encountered in practice related to the clinical evolution of the patient rehabilitated with flexible partial removable dentures. Outcomes. Patient comfort (76%) and higher aesthetic properties (54%) were the main reasons why dentists chose a partially flexible prosthetic for the prosthetic treatment of the patient. In the evolution of prosthetic patient, the main problems found at the partial flexible prosthesis were food pigment impregnation of the base (51%) and limited possibilities of repair (34%). Changes in maintenance, support, stability, aesthetic or possible fractures of base and clasps were seen by 46% of respondents, at approximately 1 to 2 years after the application of flexible partial dentures. Conclusions. Flexible partial prosthesis is a method of treatment, whose main advantages are represented by esthetics and superior adaptation of the patients, but because of the deficiencies that occur over time, it is better to be recommended as a provisional treatment solution.

Study on Epinephrine Used in Local Anesthesia Controversy and certainty

2018 ◽  
Vol 69 (1) ◽  
pp. 169-171
Author(s):  
Mihaela Pertea ◽  
Vladimir Poroch ◽  
Oxana Madalina Grosu ◽  
Sorinel Lunca
Keyword(s):  
Local Anesthesia ◽  
Postoperative Period ◽  
Lower Cost ◽  
Hand Surgery ◽  
Patient Comfort ◽  
Study Group ◽  
Efficacy And Safety ◽  
First Time ◽  
Over Time

Epinephrine (adrenaline) - C9H13NO3 - was synthesized for the first time by Fredrich Stelz in 1904 from phenylalanine. After a hydrolysis and decarboxylation process, active dopamine is obtained. Following the pathway of other hydroxylation followed by N-methylation, epinephrine synthesis is achieved. Epinephrine has initially been administrated together with procaine in local anesthesia in hand surgery. Epinephrine has been considered to be one of causes of ischemia and necrosis in hand and especially fingers surgery. Over time, studies have shown the efficacy and safety of using lidocaine-associated epinephrine in local hand surgery anesthesia. Numerous advantages regarding the use of lidocaine 1% with epinephrine, solution at a concentration of 1:100,000 have been reported, starting with increasing the duration of anesthesia, avoiding the use of tourniquet, leading to increased patient comfort and to the advantage of a much lower cost in terms of surgery as a whole. Our study group consisted of fifty patients with hand and fingers different patologies. In all cases surgery was performed under local anesthesia using lidocaine 1% with epinephrine, solution at a concentration of 1:100,000. The decrease of doses mentioned in the literature was attempted and in some cases the decrease was up to 30%. There have not been reported any ischemic or necrosis complication in the immediate postoperative period.

Graduating Otolaryngology Residents’ Ideal Practice Expectations: A Longitudinal Analysis

2022 ◽  
pp. 019459982110695
Author(s):  
Robert H. Miller ◽  
Richard K. Gurgel ◽  
Hilary C. McCrary
Keyword(s):  
Head And Neck ◽  
Neck Surgery ◽  
Sleep Medicine ◽  
Pediatric Otolaryngology ◽  
Anonymous Questionnaire ◽  
Prior Literature ◽  
Workforce Needs ◽  
Future Practice ◽  
Ideal Practice ◽  
Over Time

Objective Prior literature has indicated that the number of trained otolaryngologists required to meet the need of our growing population may be insufficient. Therefore, identifying trends in the subspecialty composition of future otolaryngology practices will elucidate workforce needs. Study Design One-page anonymous questionnaire. Setting The survey was completed by examinees at the conclusion of their American Board of Otolaryngology–Head and Neck Surgery oral examination from 2011 to 2019. Methods Data included age, gender, fellowship, practice type, and ideal future practice components. Results A total of 2286 examinees were included: 58.1% were male and 57.2% completed a fellowship. Ideal practice specialties included general otolaryngology (19%), rhinology (15%), head and neck (13%), and pediatrics (11%). General and pediatric otolaryngology had a negative correlation over time ( r = −0.81, P = .01, and r = −0.75, P = .03, respectively). An overall 45% of graduates reported 1 ideal practice area ( r = 0.61, P = .10), with a statistically significant decline in the number of ideal practice areas over time ( r = −0.79, P = .018). Men more commonly reported allergy, head and neck, otology, rhinology, and sleep medicine as part of their ideal practice ( P < .05), while women more commonly reported pediatric otolaryngology ( P < .05). There was a higher mean number of ideal practice areas among men than women (2.58 vs 2.1, P < .001). Conclusion There is a growing trend for more specialized otolaryngology practices. The data demonstrate a decline in considering general and pediatrics otolaryngology as part of practices, which portends a gap in access to comprehensive otolaryngology in the future.

Exploration of an Electroactive Polymer as an Actuator for Microrobotics

2003 ◽  
Vol 785 ◽  
Author(s):  
C. Bielmeier ◽  
W. Walter
Keyword(s):  
Steady State ◽  
Power Consumption ◽  
Parallel Plate ◽  
Electroactive Polymers ◽  
Electroactive Polymer ◽  
Low Power Consumption ◽  
Parallel Plate Capacitor ◽  
Steady State Current ◽  
A Current ◽  
Over Time

ABSTRACTThe development of lightweight low power consumption actuators is critical to the development of micro-robotics. Electroactive Polymers (EAP), i.e. Nafion N-117, meet these requirements. In the actuation of an EAP, the current does not remain constant over time. The development of a circuit model of current draw over time to best predict a current dynamic has been explored. While the material mimics a parallel plate capacitor, it has been found that capacitance plays no role in achieving steady state current levels. This development is critical to understanding and developing the material as an actuator.

scholarly journals When and why does the name of the brand still matter?

2017 ◽  
Vol 51 (11/12) ◽  
pp. 2118-2137 ◽  
Author(s):  
Griff Round ◽  
Stuart Roper
Keyword(s):  
Brand Equity ◽  
Qualitative Data ◽  
Brand Name ◽  
Literature Study ◽  
Content Type ◽  
Template Analysis ◽  
Minimal Importance ◽  
Study Participants ◽  
A Current ◽  
Over Time

Purpose The purpose of this paper is to fill a current gap in the literature, through the development of theory concerned with changes that occur over time to the functions and importance of the brand name element of a branded entity. Design/methodology/approach An initial theoretical conceptualisation was developed from the existing literature. Study participants whose behaviour was found not to conform to this initial conceptualisation were included in subsequent research to obtain greater understanding. The study method used was a series of interviews, with the obtained qualitative data analysed using template analysis. This resulted in the development of a revised theoretical conceptualisation. Findings Various functions of the brand name element, identified as connotation, denotation, linking and branded entity constancy, are ongoing important providers of brand equity to some consumers for established branded entities. This challenges a position obtained from existing literature that the brand name element of an established branded entity becomes of minimal importance over time. Originality/value Value-generating functions of the brand name element that persist over time were identified, leading to the development of a theoretical conceptualisation of the change in the importance of brand name equity over time.

A Current Cost Accounting Measure of Britain's Stock of Equipment

1987 ◽  
Vol 120 ◽  
pp. 42-57 ◽  
Author(s):  
A.D. Smith
Keyword(s):  
Capital Stock ◽  
Labour Force ◽  
Replacement Cost ◽  
National Accounts ◽  
Rates Of Return ◽  
Output Capacity ◽  
Fixed Assets ◽  
Data Yield ◽  
A Current ◽  
Over Time

Reliable measures of the gross replacement cost of fixed assets are needed for a variety of reasons. It is generally accepted that this is the valuation concept which is most appropriate for assessing the output capacity of capital and for analysing developments over time in output, labour force and capital stock relationships. The gross replacement cost of fixed assets is also the benchmark for deriving measures of net capital stock which, taken in conjunction with other capital elements and profit data, yield rates of return to capital. Furthermore it is the concept which constitutes the fundamental ingredient in the quantification of the depreciation allowances that are used in national accounts.

Silicone Tracheal Cannula Update

1987 ◽  
Vol 96 (4) ◽  
pp. 446-448 ◽  
Author(s):  
William G. Lavelle ◽  
William W. Montgomery ◽  
Edward E. Jacobs
Keyword(s):  
Recent Experience ◽  
Tracheotomy Tube ◽  
Tracheal Cannula ◽  
Current Alternative ◽  
A Current

The Montgomery® silicone tracheal cannula is a current alternative to the standard tracheotomy tube. This paper extends the 1986 report to include unusual indications for its use, complications and their management, and further recommendations on its use gathered from recent experience.

Artificial Evolution in Transhumanism

2020 ◽  
Vol 12 (1) ◽  
pp. 51-54
Author(s):  
Ruslan Klymenko ◽  
Keyword(s):  
Artificial Evolution ◽  
Contemporary Philosophy ◽  
Natural Evolution ◽  
Distant Future ◽  
Technical Innovations ◽  
Organic Devices ◽  
The Impact ◽  
A Current ◽  
Technological Perspective ◽  
Over Time

Transhumanism is a contemporary philosophy based on the belief that human nature is evolving over time not only because of Darwin's natural evolution, but also because of the impact of social movements and technical innovations. The philosophy has been shaped by many historical forerunners, for example, Nietzsche's famous idea that the human being is a mere rope tied between animal and posthuman (i.e. Übermensch), or Fedorov's reflections on the possibility of immortality.In this article, the author will show that – from a current technological perspective – in the not-so-distant future humans will be able to choose their own personal way to evolve, “upgrading” themselves with electronic or organic devices that will modify, improve, or simply introduce new forms of sensation and experience to their being . Included in the analysis of this potential are the historical preconditions of such revolutionary social and technological change.

scholarly journals In vitro Retention Loss of Attachment-retained Removable Partial Denture

2013 ◽  
Vol 14 (6) ◽  
pp. 1049-1053
Author(s):  
Gülsen Can ◽  
Baransel Özmumcu ◽  
Pinar Altinci
Keyword(s):  
Test Machine ◽  
Clinical Use ◽  
Removable Partial Denture ◽  
Partial Denture ◽  
Retention Force ◽  
Retention Loss ◽  
Custom Made ◽  
Slide Type ◽  
Over Time

ABSTRACT Aim To investigate the importance of attachment types on the retention loss of extracoronal attachment-retained removable partial dentures depending on the usage period. Materials and methods In order to observe the retention loss of 5 different attachments (OT Strategy, OT Strategy-metal protected, Vario-stud-snap and Vario-soft 3 and ERA-RV) over time, attachment-retained partial dentures representing Kennedy II mod. I case were placed in a custom-made, retention test machine. For each minute, eight separating and joining movements were performed and retention values (Newton) of the attachments were recorded by computer. The retention tests implemented in 540,1080 and 2160 cycles. The data were evaluated statistically according to the two-way ANOVA and Tukey parametrical tests. Results The slide type attachment providing the best retention force was observed to be the most worn out by this process (p < 0.01) while the ball type attachments, which typically have the lesser retention force, showed less retention loss (p < 0.01). Conclusion It can be concluded that the retention attributes of the attachment-retained dentures were affected by the specific type of precision attachment as well as the usage period. Clinical significance Precision attachments with ball-type plastic matrices may be recommended for the clinical use due to their retention stability over time. How to cite this article Can G, Özmumcu B, Altinci P. In vitro Retention Loss of Attachment-retained Removable Partial Denture. J Contemp Dent Pract 2013;14(6):1049-1053.

scholarly journals Application of 70 kVp in abdominal CT angiography to reduce both radiation and contrast dosage and improve patient comfort for children

2021 ◽  
pp. 1-9
Author(s):  
Jihang Sun ◽  
Haoyan Li ◽  
Lixin Yang ◽  
Zuofu Zhou ◽  
Michelle Li ◽  
...  
Keyword(s):  
Radiation Dose ◽  
Injection Pressure ◽  
Patient Comfort ◽  
Control Group ◽  
Study Group ◽  
Contrast Dose ◽  
Improve Patient Comfort ◽  
Improve Patient ◽  
Large Vessels ◽  
Contrast Dosage

BACKGROUND: Low-tube voltage scanning improves CT attenuation value of contrast medium (CM). Thus, we hypothesized that 70 kVp in pediatric abdominal CT angiography (CTA) could be used to reduce both radiation and CM dose and improve patient comfort at the same time. OBJECTIVE: To evaluate the feasibility of using 70 kVp in pediatric abdominal CTA to reduce radiation dose and CM dose and improve patient care for children. MATERIALS AND METHODS: Forty-six children needing abdominal CTA were enrolled in the study group using low-dose scanning protocol with 70 kVp and 0.7–1.1 ml/kg contrast dose, and reconstructed with 50%ASIR-V. They were compared with other 46 children in control group with matching body weight and underwent conventional CT scans with 100 kVp, 1.2–1.8 ml/kg contrast dose and reconstructed using 50%ASIR. Image quality of large vessels was evaluated using a 5-point scale. CT value and standard deviation of descending aorta (Ao) was measured, and signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR) were calculated. Radiation dose, contrast dose, the maximum injection pressure between the two groups were also compared. RESULTS: Score for displaying large vessels by 70 kVp images was 3.91±0.28, lower than that (4.17±0.38) of the control group (p <  0.05), but fully met the diagnostic requirements. CT value of Ao was 390.87±86.79HU in study group, which is higher than 343.93±49.94HU in control group, while there was no difference in SNR and CNR between two groups; the radiation dose, contrast dosage and injection pressure of the study group were 1.23±0.39mGy, 12.67±7.27 ml and 43.83±17.16psi, respectively, which are significantly lower than the 1.95±0.37mGy, 22.67±7.39 ml, and 77.59±19.68psi of control group. CONCLUSION: Use of 70 kVp in pediatric abdominal CTA provides diagnostic quality images while significantly reduce radiation and contrast dose, as well as injection pressure to improve patient comfort for children.

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