Balance Values Research Articles

ANALYSIS OF THE BEHAVIOR OF BALANCE VALUES OF COSTS, QUALITY AND COMFORT OF MEDICAL SERVICES DEPENDING ON THE PATIENT'S MEDICAL EDUCATION

Objective of the study. To evaluate the state of surgical services for patients with uterine fibroids and/or ovarian cysts in hospitals in Vinnytsia by the correspondence of the balance values of costs, quality, and comfort of medical services depending on the patient's medical education.
 Materials and methods. The analysis, design, and program of the study are based on the econometric model of D. Dranov and M. Satterthwaite, which relates the balance values of costs, quality, and comfort of health care services to individualized elasticities of demand. The model is empirically specified for the purposes of the study in a proper structural form. On this theoretical basis, we studied the state of the provision of surgical services to patients with uterine fibroids and/or ovarian cysts by a combined (retrospective + prospective) study of the main array, namely, 150 medical records of inpatients of gynecological departments from three medical diagnostic institutions of Vinnytsia hospitalized over a six-year period.
 Results. The behavior of the balance values of costs, quality, and comfort of medical services depending on the patient's medical education was analyzed.
 Conclusions. The hypothesis of the existence of responsiveness, namely, a decrease in the individualized elasticity of demand for price, quality, and comfort due to lack of patient awareness leads to a reduction in the balance values of costs, quality, and comfort, has been previously confirmed. In our opinion, the insufficient reliability of the effects is due solely to the small amount of data. The presence of properly oriented shifts in balance sheet values indicates the organization of inpatient obstetric and gynecological care for the nosologies under consideration that is congruent with the market environment. At the same time, the organization of inpatient obstetric and gynecological care for the considered nosologies meets the conditions of optimization, on the basis of which a theoretical model and a system of structural dependencies were developed, and therefore, they offer marketable and cost-effective solutions.

Surfactant pretreatment as a novel fouling mitigation strategy for membrane distillation

Membrane distillation (MD) has emerged as a promising thermal desalination technology for hypersaline wastewater reclamation. However, the practical implementations of MD face a critical challenge of membrane fouling. Conventional strategy to address membrane fouling is to emphasize the progress in developing composite MD membranes, but these membranes are commercially unavailable. In this study, we introduce a new operation strategy to mitigate fouling by using surfactant pretreatment. We demonstrate that after being pretreated by 0.05 mM Triton X-100 feed solution for 10 min, a commercial polyvinylidene fluoride (PVDF) membrane can exhibit outstanding fouling resistance in MD process. Further, we elucidate the underlying working mechanism using quartz crystal microbalance (QCM) experiments, oil contact angle measurements, and force spectroscopy determinations. Specifically, in the pretreatment process, the amphiphilic surfactant adsorbs onto the hydrophobic membrane, altering the membrane surface to be hydrophilic. During the MD operations, a hydration layer forms on the hydrophilic surface, eliminating the foulant-membrane interaction and thereby achieving fouling mitigation. For effective fouling mitigation, a surfactant exhibiting a moderate hydrophilic-lipophilic balance (HLB) value (e.g., Triton X-100 with an HLB of ∼14) is required. As an easy-to-implement but effective strategy to mitigate membrane fouling, surfactant pretreatment can substantially improve the fouling resistances of commercial hydrophobic membranes, greatly facilitating the practical applications of MD and membrane contactor technologies.

Optimization design of multi-gathering mode for the surface system in coalbed methane field

As a potential resource for emerging clean energy with abundant reserves, coalbed methane (CBM) has risen rapidly in recent years, and the construction of rational and economical CBM gathering system plays a vital role in the development of the oil and gas industry. At present, there is no literature that considers the optimization of the multi-gathering mode of coalbed methane pipe network system. Due to the complexity and high investment, this paper establishes a unified mixed-integer nonlinear programming model to determine the gathering modes (including liquified natural gas, compressed natural gas, and gas gathering station) of gathering system to reduce the cost of coalbed methane collection and export. The objective function is the maximization of total profit during the period of the whole project, and such constraints, like network structure, facility number, location, node flow balance, capacity and variable value, are taken into consideration. The solution strategy and heuristic algorithm is proposed and verified by the field data from Shanxi province (China). The results show that the model can solve the problem for optimization design of the surface system in complicated CBM fields.

Effect of Surfactant Formula on the Film Forming Capacity, Wettability, and Preservation Properties of Electrically Sprayed Sodium Alginate Coats.

Surfactants are always added to coating formulations to ensure good adhesion of edible coatings to a product's surface and to maintain freshness. In this study, the effects of the mix surfactants Tween 20 and Span 80 with different hydrophile-lipophile balance (HLB) values on the film-forming ability, wettability, and preservation capacity of blueberry sodium alginate coating were investigated. The results indicated that Tween 20 obviously ensured favorable wettability and improved the uniformity and mechanical properties of the resulting film. While the addition of Span 80 reduced the mean particle size of the coating, enhanced the water resistance of the film, and helped to reduce blueberry weight loss. A sodium alginate coating with low viscosity and medium HLB could better inhibit the galactose, sucrose, and linoleic acid metabolism of blueberries, reduce the consumption of phenols, promote the accumulation of flavonoids, and thus display superior coating performance. In summary, sodium alginate coating with medium HLB had comprehensive advantages in film-forming ability and wettability and was conducive to the fresh-keeping role.

Analysis of the dependence of the balance sheet values of costs, quality and comfort of medical services on the individualized elasticity of patient demand

Annotation. Various types of co-payments are being actively implemented in the Ukrainian healthcare system. These changes determine the relevance of the study, which aims to investigate the support of quality and comfort of medical services, in particular through the introduction of co-payments. A combined study was conducted of the main array of gynaecological inpatient services in Vinnytsia. The purpose of the study was to test the hypothesis of simultaneous changes in the balance values of costs, quality and comfort of healthcare services, in particular as a result of changes in the elasticity of demand for these attributes. A decrease in the individualised elasticity of demand for price, quality and comfort due to the patient's lack of awareness of costs, quality and comfort leads to a decrease in the corresponding balance values of costs, quality and comfort. 150 medical records of inpatients of gynaecological departments with the main diagnoses of uterine cysts and/or fibroids in three medical diagnostic institutions in Vinnytsia were analysed in the course of the study. The study empirically verified a theoretical model (D. Dranov and M. Satterthwaite) based on the behaviour of a provider who tries to maximise profits within certain limits (set by demand) by manipulating three important attributes: price, quality of service and comfort. It has been established that the balance sheet values of the costs of medical services are significantly higher with better awareness of patients, i.e. higher with an increase in the individual elasticity of demand for a price. Higher book values of expenditures on healthcare services are associated with a higher quality of healthcare services, which, according to the factor loadings, correlates with higher complexity of services. At higher balance values of healthcare costs, the comfort of healthcare services is significantly higher, with discomfort correlating with more complex pathology and the need for higher complexity and volume of services.

Synthesis of polyglycerol fatty acid esters catalyzed by lipase and evaluation of its emulsification properties

The present study investigated the physicochemical properties of the newly synthesized polyglycerol fatty acid esters (PGFEs) and their potential application as food emulsifiers. It turned out that the complete removal of glycerol from crude polyglycerol was achieved by optimizing the molecular distillation temperature (120 °C). Moreover, novozym 435 was used to catalyze the synthesis of PGFEs with different aliphatic chain lengths, and the esterification rate of the obtained products was 93%∼98%. The characteristic absorption peak of the ester carbonyl group was displayed at 1738 cm−1, and that of C–O–C on the ether bond was at 1100 cm−1 and 1048 cm−1. Therefore, the synthesis can be determined to be PGFEs. Their hydrophilic lipophilic balance (HLB) values are >7, which can be used as oil-in-water emulsifiers. When curcumin nanoemulsions were constructed by PGFEs with various aliphatic chains as emulsifiers, it was found that all PGFEs in C10∼C18 can form stable curcumin nanoemulsions (encapsulation rate was >95%). PGFEs with longer aliphatic chains can stabilize nanoemulsions more efficiently (larger droplet sizes and lower ζ-electric potential), and showed better storage and UV stability. Whereas, medium-chain PGFEs emulsions, especially PGC, showed the best curcumin release efficiency, which theoretically supported the application of PGFEs to functional emulsion products.

Women in Energy Sector in Nigeria: A Survey of Gender and Leadership in the Workplace

Studies have also shown that women account for a significantly smaller number of workforce in the industry; they constitute less than 22% of employee and just 5% of Boards of Directors (BOD) making the energy sector one of the least gender-diverse sectors in the economy, even thougha much direr female representation is assumed to exist in the technical and field roles. According to Solanke (2019), “although the industry has begun to appreciate the value of gender balance and how it impacts the populace,we need to see how the Nigerian Government is taking a more active role in trying to push gender balance as actively as it does local content policies.”There are various disadvantages to the low level of female participation in the industry. First, energy companies have smaller number of highly qualified candidates to choose from when filling positions, especially in the middle and higher ranks, because many talented women either never join the industry or drop out prematurely. Second, companies inevitably miss out on higher quality of teamwork, diversity of perspectives, and creativity in solving technical and business problems unlike others with larger percentages of female employees. Third, the industry’s relative lack of gender diversity, particularly in the senior ranks, hurts its reputation as a first career choice for women. Left unchecked, this can create a vicious circle that could lead to the industry finding it progressively difficult to recruit women across board.

Development of an in situ emulsifying/ultra-low-interfacial-tension cyclic flooding system for medium- and low-permeability reservoirs

Medium- and low-permeability reservoirs are important in oilfield development. However, due to their characteristics of poor pore permeability and high heterogeneity, the development of suitable technologies has been very difficult. In this study, an in situ emulsifying/ultra-low-interfacial-tension cyclic flooding system has been developed for low- and medium-permeability reservoirs. Based on the hydrophilic-lipophilic balance (HLB) value method, an emulsifying surfactant ASD with Span 80 (sorbitan monooleate) as the main component has been identified as highly promising through screening. At mass fractions of surfactant ASD between 0.2% and 0.6%, the extent of water separation from the emulsion is greatly reduced, and the W/O emulsion can effectively improve the mobility ratio and increase the sweep volume. The surfactant SA synthesized in our laboratory reduces the interfacial tension of crude oil to 10−4 mN m−1. Laboratory core flooding experiments have shown that multiple rounds of alternating injection with aqueous solutions of surfactants ASD and SA can improve oil recovery by 22.25%. Upon injecting a low-viscosity aqueous solution of surfactant ASD, it emulsifies crude oil in situ under reservoir conditions, solving the problems of difficult polymer injection and insufficient spread. Our work provides useful insights for the development of low- and medium-permeability reservoirs.

Analisis Pengaruh Inflasi dan Kurs Rupiah Terhadap Neraca Perdagangan di Jawa Barat (Tahun 2013-2022)

With the occurrence of the Covid-19 pandemic, export-import activities have experienced a significant decline in every trade balance around the world. This study aims to determine the effect of the inflation rate and the rupiah exchange rate against the US dollar on the value of the trade balance in West Java province with a vulnerable period from 2013 to 2022. The method used in this study is multiple linear regression analysis which looks at how the influence of from one independent variable to the dependent variable, the data used is secondary data originating from the Central Bureau of Statistics (BPS). The results of the study suggest that the inflation rate has no significant effect while the exchange rate has a positive and significant effect on the trade balance

An iodine balance study in Chinese school-age children.

Few iodine balance studies have been conducted in school-age children. This study aimed to conduct an iodine balance study in school-aged children. We measured daily iodine intake, excretion, and retention for three consecutive days without any dietary interventions in school-age children. Linear mixed-effects models were used to fit the relationship between total iodine intake (TII) and iodine retention (IR). 29 children aged 7-12 years (mean age 10.2 ± 1.4 years) with normal thyroid function and thyroid volume (Tvol) were recruited. The zero balance value (iodine intake = iodine excretion, iodine retention = 0 μg/d) shifted with iodine intake in an iodine sufficient population. The zero balance value for school-aged children with an iodine intake of 235 (133, 401) μg/d is 164 μg/d. Children aged 7-12 years with iodine intake >400 μg/d were almost in a positive iodine state. An iodine intake of 235 (133, 401) μg/d for children aged 7-10 years achieved a zero balance value of 164 μg/d. Long-term iodine intake of >400 μg/d is not recommended.

Energy performance assessment of photovoltaic greenhouses in summer based on coupled optical-electrical-thermal models and plant growth requirements

Photovoltaic (PV) greenhouses are widely used to regulate internal irradiance and air temperature to create optimal climatic conditions for plant growth. Therefore, comprehensive multidomain energy models of PV greenhouses are more likely needed to improve the system performance. However, few studies investigate optical-electrical-thermal characteristics and PV greenhouse evaluation indicators based on crop growth requirements. The aim of this work is to develop coupled optical-electrical-thermal models to assess the energy performance of the PV greenhouse with different PV roof coverage ratios during the summer months. In addition, the models of photosynthetically active radiation (PAR) and net photosynthetic rate (PN) are presented based on the irradiance and temperature of the PV greenhouse to evaluate the dynamic response of crops to interior climate conditions. The models are validated with experiments on the PV greenhouse in Kunming, with a total area of 26.25 m2. The electricity supply and demand systems include PV modules (3.285 kWp), a battery bank (24 kWh), an air–water heat pump (AWHP), and spray combined with fan cooling. Two cooling scenarios are analysed and compared by varying the PV module coverage ratio. Scenario 1 (S.1) is AWHP cooling, and scenario 2 (S.2) is spray combined with fan cooling. The optimum interior temperature and PAR of the PV greenhouse are 22 °C and 300 μmol·m−2·s−1, respectively. The simulations indicate that if the proportion of the PV layout on the greenhouse roof is greater than 20%, the year-round PAR inside the greenhouse will be below the threshold value of 550 μmol·m−2·s−1 at which the strawberry PN is saturated. For every 10% increase in PV roof coverage, the interior air temperature decreases by 0.02–0.56 °C corresponding to a daily cooling load reduction of 0.45–1.02 kWh/d, while the PV generation increases by 1.7–3.19 kWh/d and the maximum electricity consumption of S.1 and S.2 drops by 0.66 kWh/d and 0.52 kWh/d, respectively. Moreover, the high self-consumption-sufficiency balance (SCSB) values show that the PV and battery sizes are 2.22–2.78 kWp (40–50% coverage) and 15.72–15.75 kWh for S.1, and those in S.2 are 1.11–1.67 kWp (10–30% coverage) and 0.66–3.22 kWh. The coefficient of performance (COP) of the system reaches a maximum of 0.45–1.12 at 40% coverage in S.1 and 1.88–3.01 at 10–30% coverage in S.2. When the PV module coverage is 40% in S.1, the levelized costs of electricity (LCOE) and levelized costs of cooling (LCOC) are the lowest at 0.0760USD/kWhel and 0.0693USD/kWhc. Similarly, the lowest LCOE and LCOC of S.2 are 0.0306USD/kWhel and 0.0210USD/kWhc, as the PV module coverage is 30%. The study will be beneficial for applying photovoltaic modules, battery banks, and cooling technologies in the greenhouse, especially considering the dynamic crop response to internal climates and the energy performance assessment.

The Effect of Twelve-Week Karate and Salsa Dance Training on the Physical Fitness Performance of University Students

This study was performed to determine the effect of 12-weeks Karate and Salsa Dance training on the physical fitness performances of university students. A total of 124 students (age: 21.35 ± 1.59 year; height: 1.70 ± 0.08 cm; body weight: 67.1 ± 10.78 kg) have voluntarily participated in the study. The participants were divided into three groups using a random coin toss. The numbers of Karate group (KG), the Salsa Dance Group (SDG) and Control Group (COG) are 43 people (20 female, 23 male), 40 people (17 female, 23 male) and 41 people (12 female, 29 male), respectively. Technical training programs including two days a week and 90 minutes a day for 12 weeks were applied to the KG and SDG members accepting to the study. Body weight, height measurement, BMI calculation, bass stick balance test, handgrip strength test in upper and lower extremity strength measurements, wall squat leg strength test and plate tapping test for movement speed were performed to all participants before and after 12 weeks training. Since the data did not show normal distribution, Kruskal Wallis test was used in more than two groups and Mann Whitney-U test was used in binary comparisons. Looking at the results of KG and SDG, it was found that the BMI and muscle strength values of KG were better than the SDG values (p= .00). It was determined that the static balance values of SDG were higher than KG (p= 0.00). However, there was no significant difference between the movement speed of both groups (p> .05). All physical fitness parameters of both groups were found to be better than COG. We can suggest that sedentary individuals can benefit from karate technique training in gaining muscle strength. In addition, we can emphasize that it may be more appropriate to use salsa dance training in the development of static balance.

On Propeties of the LIP Model in the Class of RCPSPs

The Resource-Constrained Project Scheduling Problem (RCPSP) is a significant and important issue in the field of project management. It arises during project planning when resources must be allocated among tasks with specific time constraints. Solving this problem enables the optimization of project execution time, minimization of resource costs, and increased efficiency of the entire team’s work. Due to the increasing complexity of projects, the development of new methods and algorithms to solve RCPSP is relevant nowadays. The existing methods for obtaining approximate solutions with guaranteed accuracy are characterized by high computational complexity and are often ineffective in considering the specific constraints of the problem. Fast heuristic approaches also have several drawbacks related to fine-tuning algorithm parameters and strong dependence on the quality of the initial solution. This paper investigates the features of the linear integer programming (LIP) model to solve RCPSP. The proposed LIP model is universal and scalable, enabling it to fully consider all specific aspects of the problem. The paper provides a construction algorithm of a functional space of the model and discusses the estimation of complexity. From the estimation of the mentioned algorithm’s complexity, it is observed that the general complexity of the proposed approach is proportional to a controlled parameter of the LIP. Increasing this controlled parameter can significantly reduce the dimensionality of the initial problem, thus leading to the effectiveness of the LIP model-based approach in terms of computational resources. An upper bound for the value of this parameter is obtained for a special case of the RCPSP. Using the obtained balanced value, a numerical experiment was carried out on real-world samples.

Looking Employee Retention through the Lens of Employer Branding

The study intends to investigate the interplay between Organizational Branding and Employee Retention in Commercial Banks. Data for the study was collected through simple random sampling technique from 209 employees of commercial bank on five points likert scale through a self administrative questionnaire. Among 209 questionnaires distributed 198 questionnaires were filled completely and remaining was incomplete having response rate95 percent. Descriptive and casual comparative research design was used to conduct the research study using the Mean, Standard deviation, Correlation and Regression approaches. The findings revealed that standardized beta coefficients of that Social Value, Development Value, Work-life Balance and Economic Value is on higher side which implies that employee retention is more influenced by these factors. Development value is a necessary and crucial value for retention of employees. Manager’s should prioritize recognition and appreciation among the employees for better performance and retention. Likewise, manager’s should focus more on establishing healthy relationship among supervisors and subordinates for encouraging all employees. Moreover, today’s workers expects balance between work and personal life, thus employers should provide flexible work culture in favor of employees to motivate and retain them successfully, Furthermore, employers should formulate policies of paying competitive pay and benefits for employee motivation and retention. Two new variables i.e. Work life Balance and Management Value have been added under the roof of Employer Branding to test its effect on Employee Retention.

Ensemble machine learning algorithm for predicting acute kidney injury in patients admitted to the neurointensive care unit following brain surgery

Acute kidney injury (AKI) is a common postoperative complication among patients in the neurological intensive care unit (NICU), often resulting in poor prognosis and high mortality. In this retrospective cohort study, we established a model for predicting AKI following brain surgery based on an ensemble machine learning algorithm using data from 582 postoperative patients admitted to the NICU at the Dongyang People's Hospital from March 1, 2017, to January 31, 2020. Demographic, clinical, and intraoperative data were collected. Four machine learning algorithms (C5.0, support vector machine, Bayes, and XGBoost) were used to develop the ensemble algorithm. The AKI incidence in critically ill patients after brain surgery was 20.8%. Intraoperative blood pressure; postoperative oxygenation index; oxygen saturation; and creatinine, albumin, urea, and calcium levels were associated with the postoperative AKI occurrence. The area under the curve value for the ensembled model was 0.85. The accuracy, precision, specificity, recall, and balanced accuracy values were 0.81, 0.86, 0.44, 0.91, and 0.68, respectively, indicating good predictive ability. Ultimately, the models using perioperative variables exhibited good discriminatory ability for early prediction of postoperative AKI risk in patients admitted to the NICU. Thus, the ensemble machine learning algorithm may be a valuable tool for forecasting AKI.

AN APPROACH TO ANALYSIS OF THE IMPACT OF NATURAL DISASTERS ON THE ECONOMIC EFFICIENCY AND PROFITABILITY OF BUSINESS

Abstract. The paper purpose is to propose an approach to the analysis of the impact of various natural disasters (intense rainfall, extreme high or low temperatures, droughts, strong storms, floods, earthquakes and others) on the economic efficiency and profitability of the business. In this study, more specifically, the business companies in the sphere of production, trade and services are considered. These companies generate net income from sales of production, goods and services. In view of the successful development and sustainability of these companies, it is necessary to analyse the variations in specific ratios of two of the main business indicators (economic efficiency and profitability) under the influence of different natural disasters. The ratios related to the indicator of economic efficiency and profitability are calculated as the corresponding net revenues or profits from sales (of production, goods and services) are divided by one of the following variables: sum of the average balance values of current or fixed tangible assets, incurred full costs of the activity or other. Numerical results of several applications of the proposed approach with particular values of the variables that are included in the expressions describing the two business indicators are presented. The results of the analysis of the calculated values of the ratios related to the two business indicators (economic efficiency and profitability) before and after the possible occurrence of a given natural disaster can successfully support decision-making financial managers to take adequate measures to reduce the potential negative consequences, recover the normal operative activity or increasing resilience of companies.

Who captures value from hackathons? Innovation contests with collective intelligence tools bridging creativity and coupled open innovation

Balancing value creation and value capture is a fundamental strategic issue for the management of open innovation. Insufficient compensation for created value may hinder the participation of a firm or individual in open innovation. It can thus provide an obstacle to the open innovation process as a whole. Hackathons provide an attractive setting for studying value appropriation in open innovation by actors of different types and with varying bargaining power. We define hackathons as idea competitions on specific topics in the form of a time‐limited event. These competitions have gained more popularity throughout the years and have recently become more prominent. Therefore, an abductive empirical study was carried out in an international set‐up with multiple embedded cases of hackathons. Results indicate that hackathons offer coupled open innovation processes. The value captured by the initiator of a hackathon in the form of inbound open innovation is balanced by outbound knowledge flows towards participants as well as with sideways knowledge flows between participants, which are a result of the generation of collective intelligence. Collective intelligence is thus identified as an alternative mechanism for value capture from open innovation.

Predicción temprana de lesión renal aguda en pacientes neurocríticos: relevancia del índice de resistencia renal y del Doppler Venoso Intrarenal como herramientas de diagnóstico

Introducción: The implementation of renal POCUS in critical care is a valuable tool that complements the physical examination of critically ill patients. It is non-invasive, accessible, harmless, and inexpensive, allowing renal perfusion to be evaluated at the bedside of patients through ultrasound measurements such as the renal resistance index (RRI) and intrarenal venous Doppler (IVD), which are considered early predictors of acute kidney injury (AKI). Objetivos: To determine the relationship between the renal resistance index (RRI) and the degree of AKI according to KDIGO in neurocritical patients, and to correlate intrarenal venous Doppler (IVD) flow abnormalities with the degree of AKI according to KDIGO. Métodos: An observational, analytical, prospective, and longitudinal study was conducted in a neurocritical patient ICU with 43 participants. RRI and IVD measurements were performed at admission, 72 hours, and 7 days. The study evaluated which parameter better predicts AKI according to KDIGO. Resultados: In the study of 43 critically ill patients, the correlation results between RRI value and AKI according to KDIGO were not significant. On the other hand, the correlation between intrarenal venous Doppler (IVD) at admission, 72 hours, and 7 days with AKI according to KDIGO was significant with a value of r: 43=0.95 (P=0.54); 0.49 (P=0.001); 0.58(P=0.000). Analyzing by classification tree, it was determined that the variables that best predict the risk of developing AKI before it occurs are intrarenal venous Doppler (IVD) measurement at 7 days and the cumulative fluid balance value. Conclusiones: There is a positive and significant correlation between intrarenal venous Doppler (IVD) and AKI. Intrarenal venous Doppler (IVD) and cumulative fluid balance predict the risk of developing AKI in critically ill patients. On the other hand, renal resistance index was not related to AKI in the studied population.

Effect of Different Lateral Condylar Guidance Registration Methods and Articulators on Bilateral Balanced Occlusion of Complete Denture

Purpose: This study was conducted to accomplish the most balanced occlusion of the complete denture through comparing between lateral condylar guidance angle records of Hanau Equation, Gothic arch tracing and Computed tomography (CBCT) using arcon and non arcon articulators. Materials and methods: Twelve completely edentulous patients were selected for this study, with age ranging from 50-60 years. Selected patients were free from any temporomandibular disorders or dental diseases. Each patient received a complete denture and then duplicated another one for work. With bilateral balanced occlusion concept. The lateral condylar guidance measured using Hanau equation calculated from protrusive interocclusal records, Gothic arch tracer and Cone beam computed tomography. All records transferred to two types of semi-adjustable articulators Hanau non arcon articulator and Bio-art arcon articulator. Denture adjusted on the both articulator system to measure and achieve the bilateral balanced occlusion. Results: In present study comparison between the three methods of right and left lateral condylar guidance registrations Hanau Equation, Cone Beam CT and Gothic arch tracing on both types of articulators shows insignificant difference between right side (p=0.443) and left side (p=0.094) of lateral condylar guidance and also the balanced occlusion values of right and left side on arcon and non arcon semi-adjustable articulator were statically non-significant. Conclusions: Within the outcomes of this study, it could be concluded that to achieve balanced occlusion of complete denture Hanau equation obtained from inter occlusal records with using of Hanau arcon semi-adjustable articulator will be recommended.

Effect of Different Lateral Condylar Guidance Registration Methods and Articulators on Bilateral Balanced Occlusion of Complete Denture

Purpose: This study was conducted to accomplish the most balanced occlusion of the complete denture through comparing between lateral condylar guidance angle records of Hanau Equation, Gothic arch tracing and Computed tomography (CBCT) using arcon and non arcon articulators. Materials and methods: Twelve completely edentulous patients were selected for this study, with age ranging from 50-60 years. Selected patients were free from any temporomandibular disorders or dental diseases. Each patient received a complete denture and then duplicated another one for work. With bilateral balanced occlusion concept. The lateral condylar guidance measured using Hanau equation calculated from protrusive interocclusal records, Gothic arch tracer and Cone beam computed tomography. All records transferred to two types of semi-adjustable articulators Hanau non arcon articulator and Bio-art arcon articulator. Denture adjusted on the both articulator system to measure and achieve the bilateral balanced occlusion. Results: In present study comparison between the three methods of right and left lateral condylar guidance registrations Hanau Equation, Cone Beam CT and Gothic arch tracing on both types of articulators shows insignificant difference between right side (p=0.443) and left side (p=0.094) of lateral condylar guidance and also the balanced occlusion values of right and left side on arcon and non arcon semi-adjustable articulator were statically non-significant. Conclusions: Within the outcomes of this study, it could be concluded that to achieve balanced occlusion of complete denture Hanau equation obtained from inter occlusal records with using of Hanau arcon semi-adjustable articulator will be recommended.