bluuebunny/crossref_metadata_2025_split huggingface dataset:
Biomedical Waste Management Knowledge among Dental Students and Private Dental Practitioners of Alkharj, Saudi Arabia
Authors: Gowdar Inderjit M. , Al-Mansour Omar A. , Alshehri Mohammed A. , Alaskar Abdulrahman M. , Alfahad Mohammed H. , Al-Harbi Khalid F. 
Published: June 2024

ABSTRACT

Introduction:
Improper handling of biomedical waste causes health hazards. Dental practitioners and students as health care professionals should know about biomedical waste management from its generation to disposal. This will prevent associated risk and cross-infection.

Objectives:
To assess the awareness, attitude, and practice of dental students and dental practitioners at Alkharj, Saudi Arabia.

Methodology:
Total of 100 dental students from a teaching institute and 100 private dental practitioners participated in the study. A closed-ended questionnaire was used containing 20 questions related to awareness, attitude, and practice of biomedical waste. Participation was voluntary.

Results:
98% of dental practitioners and 95% of dental students are aware that biomedical waste causes health hazards. 25% of dental students and 36% of dental practitioners are aware of guidelines laid by the government of Saudi Arabia for BMW. On average, 74% of dental students and 87% of dental practitioners correctly answered practice-related questions.

Conclusion:
The knowledge ḥof dental practitioners about biomedical waste management in the Alkharj region is good compared to dental students. Dental students must be given training related to handling and management of biomedical waste.
Long-term Assessment of Functional Outcomes and Quality of Life in Patients Undergoing Total Knee Arthroplasty
Authors: Sivaram J , Bothra Himanshu , Kumar Pushpendra , Khalid Mohammed Kinaan , Panja Supantha , Shashank Chapala , Satheesh Tharini 
Published: June 2024

ABSTRACT

Background:
While short-term outcomes of total knee arthroplasty (TKA) have been extensively studied, there is a need for longstanding assessments to understand the enduring impact of the procedure on patient well-being.

Methods:
A retrospective cohort research to rate the longstanding functional outcomes and quality of life (QoL) in those undergoing primary TKA. Patient-reported outcomes, including SF-36 and EQ-5D scores, were collected at multiple time points postoperatively (1, 5, and 10 years). Objective assessments of functional parameters, i.e., range of motion, gait analysis, and quadriceps strength, were also recorded.

Results:
Current findings demonstrate significant improvements in functional outcomes post-TKA, with sustained benefits observed over a 10-year period. Range of motion, gait parameters, and quadriceps strength showed consistent enhancements postoperatively. Moreover, QoL measures, as reflected by SF-36 and EQ-5D scores, exhibited substantial improvements following TKA and remained elevated throughout the follow-up period.

Conclusion:
This research highlights the enduring effectiveness of TKA in improving both functional outcomes and QoL in patients with advanced knee arthritis.
Evaluation of Cone Beam Computerized Tomography: Effects of Maxillary Bones and Their Influence on the Point of Next Teeth and Canine Development
Authors: Kulkarni Gauravardhan , Ratre Ram Kishore , Pushpa Suran , Pobbithi Suneetha , Deshmukh Parag S. , Nagaraju Rakesh , Gautam Nandita 
Published: June 2024

ABSTRACT

Background:
In this study, individuals with unilateral palatally shifted canines had cone beam computed tomography (CBCT) image palatally displaced canine (PDC) and non-PDC sides investigate the anatomy of their upper teeth adopting a “surface matching” approach.

Procedures:
The CBCT scans of an overall of 28 people with unilateral PDC were chosen. Every single tooth in research was broken down and turned into a three-dimensional structure utilizing identical research programs, which made it possible to quantify the total length of the tooth root.

Results:
Assessing the lateral incisor (LI) roots quantities and widths of the control category, non-PDC side, and PDC sides revealed statistically significant variations (P < 0.001).

Conclusions:
Compared to contra-lateral LIs, LIs next to PDCs possess small roots. In addition, patients with unilateral PDCs had structural abnormalities between their canines and LIs.
Retrospective Study of Anesthesia-Related Complications in Elderly Patients Undergoing Surgery
Authors: Yadav Sanjeev , Jahagirdar Abhishek , Jamwal Preeti , Mishra Jagannath , Thind Gurinder B. S. , Shashank Chapala , Tiwari Rahul 
Published: June 2024

ABSTRACT

Background:
Anesthesia administration in elderly surgical patients presents unique challenges due to age-related physiological changes and comorbidities. Knowing anesthesia-related complications is crucial for optimizing perioperative care in this vulnerable population.

Methods:
A retrospective review of electronic medical records was conducted to identify anesthesia-related complications in elderly subjects aged 65 and above undergoing surgery between January 2018 and December 2020. Data collection included demographic characteristics, comorbidities, anesthesia techniques, and postoperative outcomes.

Results:
There were a total of 100 elderly patients. Cardiovascular events (35%) were the most common complication, followed by respiratory issues (20%) and adverse drug reactions (15%). Statistical analysis revealed significant associations between cardiovascular events, respiratory issues, adverse drug reactions, and anesthesia.

Conclusion:
Anesthesia-related complications pose significant risks in elderly surgical patients. Tailored anesthesia management strategies, including comprehensive preoperative assessment and vigilant intraoperative monitoring, are essential for mitigating perioperative risks and improving outcomes in this vulnerable population.
Comparative Analysis of the Frictional Resistance of Various Archwire-Ligature Combinations in Orthodontics
Authors: Alam Mohammad Khursheed , Alfuhigi Mashael Zaid , Hajeer Mohammad Younis , Alsenani Faisal Nami , Eldosary Faisal Abdullah , Alsayil Lama Naif 
Published: June 2024

ABSTRACT

Background:
Frictional resistance is a critical factor influencing the efficacy of orthodontic treatment. Archwire-ligature combinations play a significant role in determining frictional forces within the orthodontic system. This study aimed to conduct a comparative analysis of the frictional resistance exhibited by various archwire-ligature combinations commonly used in orthodontics.

Materials and Methods:
A total of five archwire-ligature combinations were evaluated in this study: stainless steel archwire with elastic ligatures, stainless steel archwire with metal ligatures, nickel-titanium archwire with elastic ligatures, nickel-titanium archwire with metal ligatures, and beta-titanium archwire with metal ligatures. Frictional resistance was measured using a universal testing machine under standardized conditions, with a constant load applied to simulate clinical conditions.

Results:
The frictional resistance varied significantly among the different archwire-ligature combinations. The mean frictional resistance values (in arbitrary units) recorded were as follows: stainless steel archwire with elastic ligatures (X), stainless steel archwire with metal ligatures (Y), nickel-titanium archwire with elastic ligatures (Z), nickel-titanium archwire with metal ligatures (A), and beta-titanium archwire with metal ligatures (B). Statistical analysis revealed that combination A exhibited the lowest frictional resistance, followed by combination B, combination Z, combination X, and combination Y.

Conclusion:
The choice of archwire-ligature combination significantly affects the frictional resistance within the orthodontic system. Nickel-titanium archwires combined with metal ligatures demonstrated lower frictional resistance compared with stainless steel archwires, regardless of the ligature type. Among the combinations tested, nickel-titanium archwire with metal ligatures exhibited the lowest frictional resistance, suggesting its potential for reducing friction and improving treatment efficiency in orthodontic practice.
Evaluation of the Biocompatibility of Orthodontic Brackets and Wires: An In-Vitro Study
Authors: Alam Mohammad Khursheed , Alfuhigi Mashael Zaid , Hajeer Mohammad Younis , Alrubaysh Mohammed Abdullah , Alslai Moath Ahmad , Alsabilah Abdulmajeed Fehaid 
Published: June 2024

ABSTRACT

Background:
Orthodontic treatment involves the use of various materials, including brackets and wires, which come into direct contact with oral tissues. Biocompatibility of these materials is crucial to ensure patient safety and treatment success. This study aims to evaluate the biocompatibility of orthodontic brackets and wires through an in-vitro investigation.

Materials and Methods:
Orthodontic brackets and wires commonly used in clinical practice were selected for this study. A series of in-vitro tests were conducted to assess the biocompatibility of these materials. Cell culture assays were performed to evaluate cytotoxicity, cell proliferation, and inflammatory response. In addition, scanning electron microscopy (SEM) was used to examine the surface characteristics of the materials.

Results:
The cytotoxicity assays revealed minimal adverse effects on cell viability, with cell viability percentages ranging from 90% to 95% for all materials tested. Cell proliferation assays demonstrated similar rates of cell growth on the surfaces of both brackets and wires. SEM analysis indicated smooth surfaces with minimal irregularities, suggesting favorable biocompatibility.

Conclusion:
The findings of this in-vitro study suggest that the orthodontic brackets and wires examined exhibit satisfactory biocompatibility characteristics. Minimal cytotoxicity and favorable cell proliferation indicate that these materials are well suited for use in orthodontic treatment. Further clinical studies are warranted to validate these findings and ensure the safety and efficacy of orthodontic appliances in patient care.
Analysis of the Cellular Response to Different Dental Implant Surfaces: An In vitro Study
Authors: Sghaireen Mohammed G. , Alrwuili Mohammad Raji , Alenzi Nasser Attallah , Aljabab Mohammed Ahmed , Issrani Rakhi , Alam Mohammad Khursheed 
Published: June 2024

ABSTRACT

Background:
Dental implant surfaces play a crucial role in determining the success of osseointegration and long-term stability. Understanding the cellular response to various implant surfaces is essential for optimizing implant design and clinical outcomes.

Materials and Methods:
In this in vitro study, we investigated the cellular response to different dental implant surfaces. Titanium implants with three distinct surface treatments (polished, acid-etched, and sandblasted) were prepared. Human osteoblast-like cells were cultured on these surfaces, and cellular behaviors including adhesion, proliferation, and morphology were evaluated using standard assays and imaging techniques.

Results:
Our results revealed significant differences in cellular responses among the different implant surfaces. Cells exhibited higher adhesion and proliferation rates on the acid-etched and sandblasted surfaces compared to the polished surface. Furthermore, cells displayed a more spread-out morphology with well-defined filopodia and lamellipodia on the acid-etched and sandblasted surfaces, indicating enhanced cellular interaction and spreading.

Conclusion:
The cellular response to dental implant surfaces varies depending on surface characteristics. Acid-etched and sandblasted surfaces promote better cellular adhesion, proliferation, and spreading compared to polished surfaces. These findings underscore the importance of surface modifications in enhancing osseointegration and ultimately improving the success rates of dental implant procedures.
Analysis of the Surface Roughness of Different Denture Teeth Materials: A Quantitative In-Vitro Study
Authors: Sultan Sherif El Sayed , Salloum Mahmoud Gamal 
Published: June 2024

ABSTRACT

Background:
The surface roughness of denture teeth materials significantly influences their clinical performance and patient satisfaction. Understanding the variations in surface roughness among different materials is crucial for optimizing denture fabrication processes.

Materials and Methods:
In this quantitative in-vitro study, three commonly used denture teeth materials, namely acrylic resin, composite resin, and porcelain, were evaluated for surface roughness. Twenty samples of each material were prepared and subjected to profilometric analysis. The surface roughness parameters Ra and Rz were measured using a contact profilometer. Statistical analysis was performed to compare the surface roughness among the different materials.

Results:
The mean surface roughness (Ra) values were found to be 0.32 μm for acrylic resin, 0.25 μm for composite resin, and 0.18 μm for porcelain. Similarly, the mean Rz values were 2.45 μm for acrylic resin, 1.98 μm for composite resin, and 1.62 μm for porcelain. Statistical analysis revealed significant differences in surface roughness among the three materials (P < 0.05).

Conclusion:
Porcelain denture teeth exhibited the smoothest surface, followed by composite resin and acrylic resin. These findings suggest that material selection plays a crucial role in determining the surface roughness of denture teeth. Porcelain may offer superior aesthetics and reduced plaque accumulation compared with acrylic and composite resin materials. Clinicians should consider these differences when choosing denture materials to achieve optimal clinical outcomes and patient satisfaction.
In vitro Evaluation of the Cytotoxicity of Chairside CAD/CAM Block Materials for Fabricating Dental Restorations
Authors: Sultan Sherif El Sayed , Albadi Mazen Anwar Abdullah , Alhassan Faris Salah , Elsharkawy Sherif Magdy 
Published: June 2024

ABSTRACT

Background:
The increasing utilization of chairside computer-aided design/computer-aided manufacturing (CAD/CAM) block materials in dentistry necessitates a comprehensive evaluation of their cytotoxicity to ensure patient safety. This study aimed to assess the cytotoxic effects of commonly used chairside CAD/CAM block materials for fabricating dental restorations.

Materials and Methods:
Several chairside CAD/CAM block materials including zirconia, lithium disilicate, and resin-based composites were evaluated for cytotoxicity using an in vitro model. Human gingival fibroblasts were cultured and exposed to extracts from each material. Cytotoxicity was assessed using MTT assay after 24, 48, and 72 hours of exposure. Additionally, cell morphology and viability were examined using microscopy.

Results:
The MTT assay revealed varying degrees of cytotoxicity among the tested materials. Zirconia demonstrated the least cytotoxicity with cell viability of 85% ± 5%, 82% ± 4%, and 79% ± 6% at 24, 48, and 72 hours, respectively. Lithium disilicate exhibited moderate cytotoxicity with cell viability of 70% ± 6%, 65% ± 7%, and 60% ± 5% at the corresponding time points. Resin-based composites displayed the highest cytotoxicity with cell viability of 55% ± 8%, 45% ± 6%, and 40% ± 4% at 24, 48, and 72 hours, respectively. Microscopic examination revealed altered cell morphology and reduced cell viability in the presence of resin-based composites.

Conclusion:
Chairside CAD/CAM block materials exhibit varying degrees of cytotoxicity, with zirconia demonstrating the least and resin-based composites showing the highest cytotoxic effects. These findings underscore the importance of considering cytotoxicity profiles when selecting CAD/CAM materials for dental restorations to ensure patient safety and biocompatibility.
Resección Segmentaria de Colon transverso, abordaje laparoscópico. Cirugía paso a paso
Authors: Barboza Alejandro , Brito Noelia , Dominguez Fabiana , Duran Federico , Viola Marcelo , Laurini Marcelo 
Published: June 2024

Resumen.
Introducción: Los pólipos colónicos son una entidad con una elevada frecuencia en la población general. Su importancia radica en ser potenciales precursores de los cánceres colorrectales.
En su estudio y tratamiento el rol de la endoscopía es fundamental, no solo en el diagnóstico sino en muchas oportunidades terapéutico al poder resecarlos.
La cirugía se reserva para aquellos pacientes en donde se detecta una lesión maligna invasora que requiere resección en bloque o para situaciones en donde se detecta un pólipo que puede o no presentar elementos de sospecha, y no puede ser resecado con seguridad por vía endoscópica.
Las ventajas demostradas de la cirugía laparoscópica colorrectal, hacen que, este
abordaje sea elegido como gold estándar tanto para la patología benigna como
maligna. Éste ha ido evolucionando a lo largo de las últimas décadas, desde los ´90 hasta
nuestros días, pasando por los estudios necesarios para la validación oncológica.
No todos los pacientes son candidatos a dicho abordaje, y la elección depende de diversos
factores, tales como la experiencia del equipo, la complejidad de la cirugía y el estado del paciente, por lo que la decisión debe ser individualizada.
Sin dudas uno de los procedimiento más complejos de realizar por laparoscópica en la cirugía del colon es la colectomía transversa exclusiva. Ésta demanda un conocimiento muy alto de la anatomía de la región, así como un expertise quirúrgico avanzado para realizar el procedimiento con seguridad técnica y oncológica
Descripción: Mostramos la experiencia de nuestro centro en el tratamiento de un paciente de sexo masculino de 61 años con una lesión polipoidea de colon con elementos de sospecha de malignidad que no pudo ser resecada por vía endoscópica.
Se presenta a continuación un video que muestra el paso a paso de una resección segmentaria de colon transverso por abordaje íntegramente laparoscópico.
KOMPARASI AGREGAT PROGO DAN MERAPI DAN PENGARUNYA TERHADAP MUTU BETON FS 45
Authors: Nurokhman Nurokhman , Kristiyanto Hery , Subagyo Singgih , Hermanto Hery 
Published: June 2024

Kekuatan beton dipengaruhi oleh bebrapa factor dan salah satunya adalah properti mutu agregat diantaranya gradasi, berat jenis, kandungan lumpur, dan keausan. Parameter tersebut akan mempengaruhi banyaknya proporsi material dalam target mutu beton. Dalam SNI 7656:2012 untuk campuran beton normal dipengaruhi butiran maksimum split, berat jenis, dan gradasi yang pada akhirnya akan memberikan porsi volume agregat dalam 1 m3. Tujuan penelitian mengetahui dan menganalisis properti agregat halus dan agregat kasar sumber Kali Progo dan sumber Merapi, dan pengaruhnya pada campuran beton FS 45.
Hasil pemeriksaan agregat Kali Progo berat jenis (Bulk) agregat halus 2,64, berat jenis kering permukaan 2,69, berat jenis semu (apparent) 2,77, dan penyerapan (absorption) 1,77%. Sedangkan agregat Merapi Sleman berat jenis (Bulk) agregat halus 2,505, berat jenis kering permukaan 2,586, berat jenis semu (apparent) 2,726, dan penyerapan (absorption) 3,244%. Untuk menghasilkan kuat lentur beton FS 45 kuat lentur rencana 45 kg/cm2 dan slump 3-6 cm dengan agregat Progo diperlukan fas 0,3 dengan perbandingan 1 PC : 0,9 AH : 1,88 AK sedangkan beton agregat Merapi 1 PC : 0,9 AH : 2,25 AK yang berarti diperlukan berat agrgat kasar yang lebih banyak.
Hasil pengujian kuat lentur FS 45 balok campuran beton dengan agregat Merapi telah memiliki kuat lentur relatif lebih tinggi 102% dimana kuat lentur dengan agregat Progo 52,792 kg/cm2 dan kuat lentur agregat Merapi 53,569 kg/cm2.
PENGARUH CURING MENGGUNAKAN AIR SUNGAI DAN AIR SUMUR TERHADAP KUAT TEKAN BETON
Authors: Erlina Erlina , Permatasari Cahyaning Kilang 
Published: June 2024

Pembangunan infrastruktur diharapkan dapat menciptakan pemerataan pembangunan serta meningkatkan daya saing ekonomi secara global, luasnya wilayah Indonesia dan beragamnya kondisi geografis tentunya menjadi tantangan tersendiri pada dunia konstruksi untuk menciptakan suatu infrastruktur yang aman dan nyaman. tingkat ketahanan atau Keawetan material konstruksi juga menjadi pertimbangan penting dalam membangun berbagai infrastruktur. untuk mencapai mutu beton yang direncanakan ada beberapa faktor yang harus diperhatikan seperti cara pencampuran (mixing), penuangan (casting), pemadatan (compacting), dan perawatan (curing). Faktor lain yang tidak kalah penting adalah mutu bahan pembantu seperti mutu cetakan (from work). Adapun tujuan yang hendak dicapai dalam penelitian ini yaitu untuk, Mengetahui perbandingan kuat tekan beton yang dihasilkan setelah proses perawatan (curing) menggunakan air sungai dan air sumur yang diuji pada umur 28 hari. Benda uji yang digunakan dalam pengujian kuat tekan yaitu berupa slinder beton dengan diameter 15 cm dan tinggi 30 cm berjumlah enam (6) buah, perawatan dilakukan terhadap benda uji yang telah dibuat didiamkan selama satu (1) hari kemudian dikeluarkan dari maould dan dilakukan perawatan dengan cara merendam benda uji kedalam bak perendaman sesuai umur yang di rencanakan. Berdasarkan hasil penelitian yang dilakukan diketahui bahwa air sumur dan air sungai memiliki niali ph 7,1 dan 6,7 dimana nilai ph kurang dari 7 tergolong asam, lebih dari 7 tergolong basah dan ph 7 bersifat netral, pada uji coba kuat tekan beton, diketahui bahwa nilai kaut tekan tertinggi pada beton dengan proses perawatan (curing) mengunakan air sumur memiliki kuat tekan sebesar 23,02, sedangkan untuk beton dengan proses perawatan (curing) mengunakan air sungai Gajah Wong sebesar 22,86 MPa dan dapat dimpulkan bahwa beton dengan proses perawatan (curing) mengunakan air sumur memiliki kuat tekan lebih tinggi dari pada beton dengan proses perawatan (curing) mengunakan air sungai Gajah Wong.