bluuebunny/crossref_metadata_2025_split huggingface dataset:
Perspectives on managing patients with Down’s syndrome among orthodontists in Saudi Arabia: A vignette and a COM-B analysis study
Authors: Abed Hassan , Taju Waleed 
Published: September 2024

OBJECTIVE:
This study aims to explore perspectives on managing patients with Down’s syndrome among orthodontists in Saudi Arabia using a vignette study and COM-B model.

METHODS:
This was a cross-sectional study for orthodontists working in Saudi Arabia. Participants were asked about their demographic data. Vignette (clinical scenarios) and COM-B model (C: capability, O: opportunity, M: motivation, and B: behavior) were used to assess orthodontists’ perspectives regarding the management of patients with Down’s syndrome. A model of Alpha (Cronbach) was used to study the properties of measurement scales. A Pearson’s correlation coefficient was used to correlate variables represented by means. An independent t-test and one-way ANOVA, with least significant difference (LSD) as a post hoc test, were used to compare two group means and more than two groups, respectively.

RESULTS:
Most participants (n = 70, 85.4%) reported that they had no training/exposure to dealing with Down’s syndrome patients during their orthodontic clinical training. Participants reported an average of 3.82 (SD = 1.1) when treating moderate Down’s syndrome and 2.48 (SD = 1.4) when treating severe Down’s syndrome with mild occlusion discrepancies. Participants also showed that their behavior and attitude are significantly related to their capability, opportunity, and motivation regarding the management of patients with Down’s syndrome. The average reported agreement ranges from 2.46 (SD = 1) for the hypoplasia of the mandible to 4.38 (SD = 0.8) for the congenitally missing teeth.

CONCLUSION:
This study found that orthodontists in Saudi Arabia showed low confidence levels to manage Down’s syndrome patients with moderate and severe challenging behavior. Despite this, the likelihood of increasing their confidence levels and attitude regarding the management of patients with Down’s syndrome increased by increasing their capability, opportunity, motivation, and knowledge in this field.
Influence of different types of mouthwashes on force decay of elastomeric chain recommended in SARS-COV-2 pandemic
Authors: Salih Al Qassar Sarmad S. , Ismael Afnan Jamaluddin , Dewachi Zaid Br. 
Published: September 2024

OBJECTIVES:
This study aimed to compare the force decay of the power-chain elastics after exposure to anti-coronavirus 2019 (COVID-19) antiseptic mouthwashes at different intervals.

METHODS:
A total of 300 power-chain pieces were used from American Orthodontics (AO) and Dentaurum (D) brands. Each piece composed of five loops that were selected to simulate canine retraction distally. The samples were randomly grouped according to immersion in the tested mouthwashes 0.2% povidone-iodine (PVP-I), 1% hydrogen peroxide (H2O2), and 0.2% chlorhexidine (CHX) and cetylpyridinium chloride (CPC). The maximum tensile load failure testing (MTLT) was assessed at six time points (zero, one hour, 24 hours, 1, 2 and 4 weeks). Analysis of variance (ANOVA) and Tukey’s post hoc tests were used to analyse the data, where P < 0.05.

RESULTS:
Significant differences in MTLT of power-chain elastics used at different immersion intervals were observed. MTLT, in each tested group, decreased significantly as the immersion time increased with significant differences among the tested mouthwashes at each time point. H2O2 group displays a maximum force decay throughout the time intervals for both brands, in contrast to CPC group, which shows less degradation over time.

CONCLUSION:
Both brands are decade over time during exposure to the tested mouthwashes. CPC mouthwashes is a good option to be described for orthodontic patient during COVID-19 pandemic, whereas H2O2 mouthwashes should be avoided.
Evaluation of effects of different sizes and shapes of attachments during rotation, tipping, and torquing in clear aligner therapy – A finite element study
Authors: Pede Krutadnya , Shetty Pravin , Ranjan Alok , Khan Waseem , Patil Harshal , Mishra Harsh 
Published: September 2024

OBJECTIVE:
To evaluate the effect of different shapes and sizes of attachments used for rotation, tipping, and torquing tooth movement in clear aligner therapy.

MATERIAL AND METHODS:
Using computer-aided design/computer-aided manufacturing technology, 15 replicas of the upper right human canines were produced. Finite element analysis (FEA) was utilized to mimic tooth movement by applying a constant force of 2.942 N to these models, which contained various forms and sizes of composite attachments. Analysis was done on the stress on different dental structures and the displacement of the attachments.

RESULTS:
The outcomes demonstrated that tooth movement during clear aligner treatment was considerably impacted by attachment size and shape. Rectangular beveled attachments with dimensions of 3.5 mm × 1.2 mm × 3.5 mm showed the greatest rotating mobility. Triangular beveled attachments with dimensions of 5 mm by 0.8 mm by 2 mm produced the most displacement during tipping motion. For torquing motions, rectangular power ridge attachments with dimensions of 0.5 mm × 0.5 mm × 5 mm worked well.

CONCLUSION:
The size and geometry of composite attachments were shown to be extremely important in regulating tooth movement during clear aligner treatment, according to this FEA research. Greater displacement is produced when smaller attachments with less surface area dissipate more force. When using clear aligner therapy, orthodontists may optimize treatment plans, shorten treatment times, and provide more predictable results by having a better understanding of the biomechanics of various attachment designs.
Comprehensive evaluation of early shear bond strength and antimicrobial activity in orthodontic adhesives enhanced with salvadora persica oil
Authors: Abdulhadi Amir , Al Qassar Sarmad S. Salih , Mohammed Ahmed Mudhafar 
Published: September 2024

OBJECTIVES:
This study investigates the mechanical properties and antimicrobial efficiency of orthodontic adhesive modified with Salvadora persica (SP) oil, including adhesive remnant index (ARI) and shear bond strength (SBS), specifically antimicrobial efficacy against Streptococcus mutans.

METHODS:
Forty freshly extracted human premolars were recruited. They were classified into four groups according to the concentration of SP oil added to Heliosit orthodontic adhesive where the control group was with no adhesive modification, alongside three experimental groups, wherein SP oil was integrated into the adhesive at concentrations of 1%, 3%, and 5% weight/weight, respectively. The tooth buccal surface was etched by phosphoric acid gel (37%). The orthodontic brackets utilized were standard stainless steel edgewise 22”. The brackets were bonded with Heliosit by Woodpecker LED light cure for 20 sec. The SBS was assessed using a universal testing machine, and ARI was inspected by a stereomicroscope at 20X magnification power. The antimicrobial activity against Streptococcus mutans was evaluated. The statistical analyses, analysis of variance (ANOVA), and Kruskal-Wallis and Duncan were performed where P ≤ 0.05.

RESULTS:
The findings indicated that among the experimental groups, the 3% SP oil group exhibited the highest mean SBS value, following closely behind the control group. Conversely, the mean SBS was lowest for the SP group with a 5% concentration. However, ANOVA and Kruskal-Wallis tests revealed no significant differences between groups (P ≥ 0.275, 0.069), respectively. Antimicrobial tests demonstrated a concentration-dependent antibacterial effect, the 5% group exhibiting the highest efficacy.

CONCLUSION:
Orthodontic adhesive modified with SP oil maintains favorable SBS while demonstrating antimicrobial effects against Streptococcus mutans.
Clinical effectiveness of customized versus noncustomized orthodontic appliances: A systematic review
Authors: Yassir Yassir A. , Sofar Mostafa K. , McIntyre Grant T. , Bearn David R. 
Published: September 2024

OBJECTIVE:
To evaluate the clinical effectiveness of treatment with customized compared to noncustomized fixed orthodontic appliances.

METHOD:
A comprehensive search was performed using 13 databases until February 20, 2024. Study eligibility criteria were based on studies that compared orthodontic treatment with customized fixed appliances (labial or lingual) with noncustomized appliances. All ages and types of malocclusions were included.

RESULTS:
The search identified 95 studies, of which only four fulfilled the inclusion criteria. Three studies compared labial customized brackets with self-ligating brackets, while one study compared lingual customized brackets with labial conventional brackets. There were no significant differences between these systems for treatment duration, outcome, number of appointments, analgesic consumption, patient satisfaction, and the archwire bends requirement. On the other hand, treatment planning was longer and the finishing and detailing phase was shorter in the customized appliances. There was a greater tendency for mandibular incisor proclination and bracket repositioning in the noncustomized appliances group and a greater number of bracket failures, complaints, and requirements for archwire changes in the customized appliances. Qualitative synthesis was applied due to heterogeneity in investigating the difference between the two appliance systems.

CONCLUSION:
Based on the current limited evidence, the clinical effectiveness of customized and noncustomized orthodontic appliances was similar for the majority of clinical outcomes. Further high-quality clinical studies are required to confirm this finding.

CLINICAL RELEVANCE:
Proper treatment planning and clinical management are the key factors for adequate outcomes apart from the type of appliance used.
Estimating the validity of Tanaka–Johnston and Moyer’s analysis of a Saudi sample
Authors: Al-Fraidi Ahmad A. , Habeeb Abdulsamad Talaat , Alserhani Sarah Awadh , Al-Kaki Raood Talal , Alkhathami Saleh Saeed , Bafaqeeh Hadeel Ahmed 
Published: September 2024

OBJECTIVES:
Accurate estimation of unerupted permanent canines and premolars is a crucial step for effective orthodontic treatment planning during mixed dentition. This study aimed to evaluate the validity of Moyers’ charts and the Tanaka–Johnston equation in predicting tooth sizes in a sample of the Madina population in Saudi Arabia and propose a new regression equation.

METHODS:
Dental casts from 219 subjects (113 males and 106 females) were analyzed. Actual mesiodistal tooth widths were measured using digital calipers with an accuracy of 0.01 mm. Moyers’ and Tanaka–Johnston predictions were compared with actual measurements, and a new set of prediction equations was developed.

RESULTS:
Tanaka–Johnston predictions consistently overestimated the actual measurements, exhibiting a difference of 1.20 mm for maxillary canines and premolars and a difference of 1.25 mm for mandibular teeth. The Moyers chart showed gender-specific variations with males aligning with the 50th percentile and females aligning with the 65th percentile for upper arches and the 50th percentile for lower arches. Newly derived linear regression equations were established for predicting the sum of upper and lower canines and premolars for the Madina population.

CONCLUSION:
The study highlights limitations in the Moyers and Tanaka–Johnston methods used for the current sample as both methods overestimated tooth sizes. New regression equations were developed to offer a more accurate approach for predicting tooth sizes for the study sample.
Femoral and tibial phenotypes of varus alignment in a Southeast Asian arthritic population: a descriptive study
Authors: Wan Joseph Jon Yin , Yow Lina Pei Shi , Cheong Nian Kai , Koh Don Thong Siang , Soong Junwei , Lee Kong Hwee , Bin Abd Razak Hamid Rahmatullah 
Published: September 2024

Abstract

Introduction:
Knowledge of femoral and tibial morphology is important for patient-specific surgery in both joint reconstruction and preservation procedures. Studies evaluating morphological variance in femoral and tibial alignments in Asian populations are scarce. This is the first descriptive study evaluating the femoral and tibial phenotypes of varus alignment in a Southeast Asian population.

Methods:
Long-leg coronal standing radiographs of 2021 limbs were obtained, and the hip–knee–ankle angle, mechanical lateral distal femoral angle, medial proximal tibial angle and joint line convergence angle were measured. Joint line obliquity was calculated, and the knees were classified according to the Coronal Plane Alignment of Knee (CPAK) classification. Descriptive analyses on alignment parameters and demographic data (age, gender, ethnicity and body mass index [BMI]) were performed and entered into a linear regression model.

Results:
The highest frequency of limb alignment in the population was found to be CPAK type I (52.71%, n = 1003). Tibial varus was the largest contributor of varus malignment. Of the varus knees (n = 1247), varus deformity was found solely in the tibia (68.60%), solely in the femur (2.07%) and was contributed by both the femur and the tibia (4.97%). In the linear regression model, BMI was found to be a strong determinant for femoral varus (P = 0.004) and joint line incongruence (P < 0.001).

Conclusion:
The findings of this study will be important to surgeons during planning for joint preservation procedures (such as corrective osteotomies) and joint arthroplasties to restore alignment.
Universality for tropical and logarithmic maps
Authors: Corrigan Gabriel , Nabijou Navid , Simms Dan 
Published: September 2024

We prove that every toric monoid appears in a space of maps from tropical curves to an orthant. It follows that spaces of logarithmic maps to Artin fans exhibit arbitrary toric singularities: a virtual universality theorem for logarithmic maps to pairs. The target rank depends on the chosen singularity: we show that the cone over the 7-gon never appears in a space of maps to a rank 1 target. We obtain similar results for tropical maps to affine space.Comment: 22 pages. Comments welcome. v4: Published version in journal style
PENGARUH PENERAPAN E-FILING, E-BILLING DAN SANKSI PERPAJAKAN TERHADAP KEPATUHAN WAJIB PAJAK
Authors: Handayani Anggie Primastuti , Napisah Napisah 
Published: September 2024

This research aims to analyze the effect of implementing e-filing, e-billing and tax sanctions systems on taxpayer compliance at KPP Pratama Serpong using a quantitative approach. The research population is registered taxpayers at KPP Pratama Serpong. Primary data was obtained through questionnaires to respondents. Samples were taken using the convenience sampling method using the Slovin formula, resulting in 110 samples. Data analysis used multiple linear regression with SPSS version 20. The results showed that the implementation of the e-filing system had a positive effect on taxpayer compliance, while the implementation of the e-billing system had no effect, and the application of tax sanctions had an effect on taxpayer compliance
PENGARUH STRATEGI BISNIS DAN KETIDAKPASTIAN LINGKUNGAN TERHADAP KINERJA USAHA
Authors: Jhosefine Octalivia , Holiawati Holiawati 
Published: September 2024

This research was conducted with the aim of analyzing the influence of business strategy and environmental uncertainty. This research was conducted by analyzing business performance in MSMEs in Cibodas District, Tangerang City. This type of research is quantitative and associative using primary data in the form of distributing questionnaires to MSME business actors. Sampling used the slovin sampling technique with the results of 88 MSME business actors. The variables used in this study are Business Strategy as the first independent variable and Environmental Uncertainty as the second independent variable and Business Performance as a bound variable. This study uses multiple linear regression analysis tests and hypothesis testing using the help of SPSS 25 software. The results of this study state that business strategy and environmental uncertainty simultaneously and partially affect business performance
ANALISIS PERTUMBUHAN EKONOMI PASCA PANDEMI PADA PROVINSI JAWA TIMUR DAN JAWA BARAT
Authors: Gultom Angelica , Mirna Dyah Praptitorini Mirna Dyah Praptitorini 
Published: September 2024

Tujuan dari penelitian ini ialah untuk menganalisis pengaruh dari pendapatan asli daerah, jumlah penduduk dan belanja modal. Populasi dan sampel penelitian adalah 46 kab/kota di kab/kota provinsi jawa timur dan jawa barat tahun 2020-2022. Penelitian ini menguji 139 data yang berasal dari LKPD dan web BPS. peneliti menggunakan metode analisis regresi berganda. penelitian ini membuktikan bahwa pendapatan asli daerah, dan jumlah penduduk berpengaruh positif dan signifikan sedangkan belanja modal berpengaruh negatif tetapi masih signifikan. penelitian ini dapat menjadi pertimbangan terhadap pemerintah menjadikan dasar untuk pengembangan kebijakan yang lebih baik. Informasi yang diperoleh dapat membantudalam mengarahkan alokasi sumber daya dan mendukung strategi pengembangan ekonomi yang berkelanjutan.
ANALISIS PENENTUAN HARGA POKOK PRODUKSI DENGAN MENGGUNAKAN METODE FULL COSTING SEBAGAI DASAR PENETAPAN HARGA JUAL PADA USAHA MIKRO GOLLA KAMBU TEPPO MAMA RINA
Authors: Yusuf Muh. Silmi Kaffa , Rijal Abdul , Idris Hariany 
Published: September 2024

This research aims to analyze the determination of cost of production using the full costing method as the basis for setting selling prices at the micro business Golla Kambu Teppo Mama Rina. The focus of this research is on the cost of production using the full costing method and the selling price. Data collection techniques were conducted using triangulation techniques, namely observation, interviews, and documentation. Data analysis was carried out using qualitative descriptive analysis. The results of this study indicate that the calculation of the cost of production based on the full costing method results in higher costs compared to the calculation by Golla Kambu Teppo Mama Rina. The cost of production obtained according to Golla Kambu's business is IDR 29.778 per package, while that obtained by the researcher is IDR 30.407 per package. The selling price determined by Golla Kambu Teppo Mama Rina is IDR 32,000 per package, whereas that obtained by the researcher is IDR 36.487 per package. This difference occurs because Golla Kambu Teppo Mama Rina does not account for all costs (factory overhead costs) incurred in the production process in detail
Influence of Porosities of 3D Printed Titanium Implants on the Tensile Properties in a Rat Tendon Repair Model
Authors: Fry Michael , Ren Weiping , Bou-Akl Therese , Wu Bin , Paula Pawlitz  , Markel David C. 
Published: September 2024

BACKGROUND There is a desire in orthopaedics to have soft tissue, particularly tendon, grow into metallic implants. With the introduction of three-dimensional (3D) printed porous metal implants, we hypothesized that tendons could directly attach to the implants. However, the effects of the porous metal structure on tissue growth and penetration into the pores are unknown. Using a rat model, we investigated the effect of pore size on tendon repair fixation using 3D printed titanium implants. METHODS There were three experimental groups of eight Sprague Dawley rats (n = 24) plus control (n = 3). Implants had defined pore sizes of 400µm (n = 8), 700µm (n = 8), and 1000µm (n = 8). A defect was created in the Achilles tendon and the implant positioned between cut ends and secured with suture. Specimens were harvested at twelve weeks. Half the specimens underwent mechanical testing to assess tensile load to failure. The remaining specimens were fixed and processed for hard tissue histological analysis. RESULTS The average load to failure was 72.6N for controls (SD 10.04), 29.95N for 400µm (SD 17.95), 55.08N for 700µm (SD 13.47), and 63.08N for 1000µm (SD 1.87). The load to failure was generally better in the larger pore sizes. The 700µm and 1000µm specimens performed similarly, while the 400µm showed significant differences vs control (p = 0.039), vs 1000µm (p = 0.010), and approached significance vs 700µm (p = 0.066). There was increasing ingrowth as pore size increased. Histology showed fibrous tendon tissue within and around the implants, with collagen fibers organized in bundles. CONCLUSIONS Tendon repair utilizing implants with 700µm and 1000µm pores exhibited similar load to failure as controls. Using a defined pore structure at the attachment points of tendons to implants may allow predictable tendon ingrowth onto/into an implant at the time of revision arthroplasty.
Software para la determinación de propiedades pVT aplicados al sector upstream – midstream
Authors: Luque Veliz Dennis 
Published: September 2024

En la industria del petróleo y el gas natural, la determinación exacta de las diferentes propiedades pVT de un fluido proveniente de un pozo petrolero u gasífero; son de vital importancia para la toma de decisiones técnicas y económicas dentro del sector hidrocarburifero. Por ello el presente proyecto tiene como objetivo desarrollar un prototipo de software que permita determinar las propiedades físicas de mezclas de hidrocarburos de una manera eficiente, que contribuya a ser parte de la solución de uno de los problemas inevitables que se da en el ámbito laboral y académico de la Ingeniería de Petróleo y Gas Natural, que es la disponibilidad de reportes pVT al momento de caracterizar un fluido hidrocarburifero. Dada la naturaleza cuantitativa del proyecto, se optó por una investigación a través del método científico deductivo – descriptivo, en el que se describieron las correlaciones pVT comúnmente utilizadas por los ingenieros petroleros en los sectores de upstream – midstream y se adaptó la metodología propuesta por el matemático Póyla para el desarrollo del software. El resultado del proyecto fue un prototipo de software “independiente” bajo el seudónimo de PROPIEDADES pVT (Versión 1.1), diseñado y codificado en App Designer utilizando el lenguaje de programación de MATLAB®. Este prototipo integra más de 36 modelos matemáticos que simplifican la resolución de cálculos numéricos e iterativos presentes en las correlaciones pVT de diferentes fluidos aplicados al sector upstream – midstream, como: gas natural; aceite (saturado y bajo - saturado) y agua (saturada y bajo saturada).
Diagnóstico físico e químico do solo em lavouras sob sistema plantio direto no Planalto Serrano de Santa Catarina e nos Campos de Cima da Serra do Rio Grande do Sul
Authors: Amaral André Julio , Denardin José Eloir , Santi Anderson , Giongo Vanderlise , Henningen Fabrício Jardim 
Published: September 2024

Este trabalho objetivou diagnosticar a ocorrência de limitações física e química em lavouras manejadas sob sistema plantio direto. O estudo foi conduzido a campo, em 12 talhões agrícolas em Latossolos, Nitossolos e Cambissolos com caráter alumínico. Ao final do ciclo da cultura da soja foi realizada a amostragem do solo no terço superior, no terço médio e no terço inferior da topossequência, totalizando 36 pontos de coleta e cinco métodos de amostragem. Foram analisados a reação do solo (pH-H2O), os teores de fósforo (P) e potássio (K) trocáveis e de matéria orgânica no solo (MO), a densidade do solo (Ds), o volume de poros totais (Pt), de macroporos (Ma) e de microporos (Mi), a taxa estável de infiltração de água no solo (Tei) e o índice de qualidade estrutural do solo (Iqes). A ocorrência de limitação química foi comprovada para o pH-H2O, P e K em 70%, 92% e 75% dos talhões, respectivamente, evidenciada pelos métodos de amostragem de forma estratificada. Os teores de MO foram, em média, de 3,7g dm-3 na camada de 0-20cm. A ocorrência de limitação física foi evidenciada pelos valores de Ds e Ma. O Iqes, com oscilação de 0 a 5, foi, em média, de 3,6. Com base nos critérios estabelecidos constatou-se a presença de limitação química e/ou física em 11 talhões e a amostragem de 0-10cm e 10-20cm como eficaz em identificar a estratificação da fertilidade do solo em SPD.