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1.
Cureus ; 16(5): e60245, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38872691

RESUMO

Introduction Dental caries is a worldwide disease affecting children and older populations. There are multiple interventions to treat dental caries that could be sometimes hard to deliver, due to the general status of patients such as insufficient cooperation or medically compromising conditions. Therefore, another alternative to control dental caries is being used and has been recently introduced and approved by the Saudi FDA which is silver diamine fluoride (SDF).  Objectives This study aimed to investigate the level of knowledge, attitudes, and practices about the use of SDF among dentists in Riyadh, Saudi Arabia. Materials and methods This cross-sectional study was conducted using pretested, an online digitally designed questionnaire sent to 500 Saudi Commission for Health Specialties (SCFHS) registered dentists working in the following specialties: general practitioners, interns, restorative, family, pediatric, and public health dentists who are working in public and private hospitals and clinics. One-way ANOVA was used to determine the comparison of participants' knowledge and Practice with three variables (participants' specialty, place of work, and years of experience), while Chi-square was used for the comparison of respondent's attitudes about the use of SDF and the above same variables. Result A total of 265 responses were received (response rate is 53%). The majority of the respondents were general practitioners and interns 144 (54.3%). Over 50% of dentists believed that they were very informed about SDF. The mean score of knowledge and practices of SDF of participants was found below average 49.13 (19.81) and 43 (26.12), respectively. Correlation of the mean score knowledge and practicing SDF with the type of specialty showed that pediatric dentists had statically significant (P<0.05) higher mean of knowledge 66.94 (SD=17.64) and practicing of SDF 61.93 (22.12) as compared to other specialties, while no statistically significant differences were found among the groups in the overall knowledge and practices based on years of experience and workplace. Attitudes were correlated with the three above variables (specialty, years of experience, and place of work) and showed that pediatric dentists had the highest satisfaction with the results of SDF (85.3%) and were more willing to recommend using it to others (91.2%) as compared to the other groups(P<0.05). No statistically significant differences were found with respect to the later variables. Conclusion The findings of this study showed that irrespective of the positive attitude of participants towards SDF, pediatric dentists were found to have higher knowledge and use SDF more than other dentists in different specialties. Furthermore, they showed higher satisfaction with its use. Years of experience and workplace had no effect on the level of knowledge or practice among participants.

2.
Heliyon ; 10(7): e28506, 2024 Apr 15.
Artigo em Inglês | MEDLINE | ID: mdl-38596111

RESUMO

This study aims to assess the effectiveness of comprehensive licensure reviews and adaptive quizzing assignments on nursing students' clinical competence, self-efficacy, and work readiness-an under-researched topic. Additionally, it seeks to explore the mediating effect of self-efficacy in the relationship between students' clinical competence and work readiness. A quasi-experimental (pre- and post-test), single-group design was employed. The study was conducted in a public university in Saudi Arabia and included a total of 293 senior nursing students in their last year of the bachelor program. An intervention was developed based on the blueprints of the Saudi Nursing Licensing Exam and NCLEX-RN and consisted of a weekly 3-h synchronous comprehensive licensure review bundled with 23 adaptive quizzing assignments over 15 weeks. Data were collected prior to and after the intervention using three scales: clinical competence, self-efficacy, and work readiness. The mean scores of clinical competence, self-efficacy, and two subscales of work readiness (work competence and social intelligence) increased significantly post-intervention. Self-efficacy (ß = 0.353, p < 0.001) and clinical competence (ß = 0.251, p < 0.001) influenced work readiness (F [5, 226] = 21.03, p < 0.001) and accounted for 31.8% of the explained variability in work readiness. In the mediation analysis, clinical competence had a significant and indirect effect on work readiness through self-efficacy (B = 0.464, p < 0.001, 95% CI 0.250 to 0.699). The proportion of mediation indicated that 37.2% of the total effect of clinical competence on work readiness was due to the indirect effect of self-efficacy. Comprehensive licensure review and adaptive quizzing assignments improve students' perceptions of clinical competence and self-efficacy. Such interventions could ease the transition of senior nursing students to clinical practice.

3.
Heliyon ; 10(8): e29533, 2024 Apr 30.
Artigo em Inglês | MEDLINE | ID: mdl-38681635

RESUMO

Introduction: During the Coronavirus disease (COVID-19) pandemic, many educational institutions faced the challenge of providing and implementing online education. Despite this challenge, most adopted online education systems to ensure that the teaching and learning process continued. This study aimed to explore nursing educators' experiences related to adopting online-only teaching during the (COVID-19) pandemic, providing nursing students with the best learning experiences, and preparing faculty members to teach online. Method: This qualitative descriptive study was conducted using semi-structured interviews from June 2020 to September 2020. Using purposive sampling, 12 nursing educators in Saudi Arabia who taught university courses online during COVID-19 were recruited. They were selected based on their teaching experience in undergraduate and postgraduate degree nursing programs. Results: Thematic analysis revealed an overarching theme-faculty challenges-and three sub-themes-emotional, technical, and educational challenges. Secondary sub-themes comprised four challenges that the nursing faculty faced-using online platforms, accessibility, cheating, and dealing with students' clinical practice-which were found to be interconnected and interrelated. Discussion: Most nursing educators had to shift to online distance teaching suddenly; thus, they faced several challenges related to online teaching, e-learning literacy, classroom management, and connectivity as they transitioned to digitalization. To address these issues, this study recommends that university management organize training programs for educators to help them more effectively conduct online classes. These findings will be valuable for universities, policymakers, designers, and producers to enhance the implementation of their e-learning systems.

4.
J Taibah Univ Med Sci ; 19(3): 473-481, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38549756

RESUMO

Objectives: Sleep quality among tertiary healthcare professionals in KSA has not been well studied. Therefore, in this study, we aimed to assess sleep quality among physicians and nurses in a tertiary care center in Jeddah City and to identify the associated factors. Methods: In this quantitative, analytical, cross-sectional study, an online, self-administered questionnaire was distributed to all physicians and nurses working at King Abdulaziz University Hospital (KAUH). A total of 395 healthcare professionals participated in this study. The questionnaire included the participants' demographic characteristics and Pittsburgh Sleep Quality Index (PSQI) values. Results: The mean age and body mass index of the participating healthcare professionals were 37.74 ± 10.35 years and 26.32 ± 4.97 kg/m2, respectively. Most participants were women (70.4%) and expatriates (55.4%). The prevalence of poor sleep quality was high: 70.4% of the participants had a PSQI score >5. Several factors, such as female sex (adjusted odds ratio (AOR) = 2.03; 95% confidence interval (CI) = 1.11-3.74), shift work (AOR = 1.87; 95% CI = 1.01-3.45), physical inactivity (AOR = 2.43; 95% CI = 1.01-5.85), and current smoking (AOR = 4.64; 95% CI = 1.68-12.80), were associated with poor sleep quality among healthcare professionals. Conclusions: Our findings are consistent with those from previous studies indicating high prevalence of poor sleep quality among healthcare professionals. Furthermore, female sex, shift work, smoking, and physical inactivity were identified as risk factors for poor sleep quality.

5.
Cureus ; 16(1): e52339, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38230385

RESUMO

BACKGROUND: Colorectal cancer (CRC) is a major contributor to cancer-related mortality and morbidity due to its high prevalence. Surgery remains the curative option. Colorectal cancer patients come to our institute at an advanced stage due to the lack of adequate national screening programs in developing countries. This carries a particularly high risk of morbidity and mortality. In this study, we aim to provide an overview of the complications of colorectal cancer surgery and to describe the preoperative and intraoperative factors associated with it. METHODS: This retrospective record review was done at King Abdulaziz University Hospital (KAUH), a tertiary center in Jeddah, Saudi Arabia. It included all patients aged 18 and older who have undergone colorectal cancer surgeries from January 2017 until August 2022. RESULTS: In our sample of 195 patients, 52.3% of the patients were males. The mean age of our sample was 59.32 ± 13.21. We found that 19 (9.7%) patients had an intraoperative complication (IOC). The most frequent IOC was bleeding reported in seven patients (3.6%), followed by intestinal injury in three (1.2%), bladder injury in three (1.2%), and ureter injury in three (1.2%). Regarding preoperative lab tests, patients who had low blood albumin levels (P = 0.004) and high preoperative white blood cell count (WBC; P = 0.015) were more likely to experience IOC. There was a statistically significant relationship between the patient's ASA score and IOC (P = 0.011). Postoperative complications (POC) occurred in 58 patients (29.7%). The most frequent POC was surgical site infection (SSI; 16.4%), followed by urinary tract infections (UTI) (6.7%) and prolonged postoperative ileus (5.6%). Patients who initially presented with vomiting (P = 0.015), had free air on a preoperative abdominal computed tomography (CT) scan (P = 0.028), required intraoperative blood transfusions (P = 0.033), were diagnosed with transverse colon tumors (P = 0.045), and required longer hospital stays (P = 0.011) were found to have a higher rate of POC. CONCLUSION: The incidence of colorectal cancer is increasing, and surgery is a successful treatment option. However, complications from surgery may result in morbidities and prolonged hospital stays. The risk of IOC is increased by preoperative variables such as high WBC levels, low albumin, and ASA scores. Patients with initial obstruction signs, free air on CT scans, intraoperative blood transfusions, transverse colon tumors, and longer hospital stays have a higher rate of POC. Patient monitoring and the provision of standardized clinical tools enhance general survival and quality of life.

6.
J Bioenerg Biomembr ; 56(2): 125-139, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38095733

RESUMO

Viruses are microscopic biological entities that can quickly invade and multiply in a living organism. Each year, over 36,000 people die and nearly 400 million are infected with the dengue virus (DENV). Despite dengue being an endemic disease, no targeted and effective antiviral peptide resource is available against the dengue species. Antiviral peptides (AVPs) have shown tremendous ability to fight against different viruses. Accelerating antiviral drug discovery is crucial, particularly for RNA viruses. DDX3X, a vital cell component, supports viral translation and interacts with TRPV4, regulating viral RNA metabolism and infectivity. Its diverse signaling pathway makes it a potential therapeutic target. Our study focuses on inhibiting viral RNA translation by blocking the activity of the target gene and the TRPV4-mediated Ca2+ cation channel. Six major proteins from camel milk were first extracted and split with the enzyme pepsin. The antiviral properties were then analyzed using online bioinformatics programs, including AVPpred, Meta-iAVP, AMPfun, and ENNAVIA. The stability of the complex was assessed using MD simulation, MM/GBSA, and principal component analysis. Cytotoxicity evaluations were conducted using COPid and ToxinPred. The top ten AVPs, determined by optimal scores, were selected and saved for docking studies with the GalaxyPepDock tools. Bioinformatics analyses revealed that the peptides had very short hydrogen bond distances (1.8 to 3.6 Å) near the active site of the target protein. Approximately 76% of the peptide residues were 5-11 amino acids long. Additionally, the identified peptide candidates exhibited desirable properties for potential therapeutic agents, including a net positive charge, moderate toxicity, hydrophilicity, and selectivity. In conclusion, this computational study provides promising insights for discovering peptide-based therapeutic agents against DENV.


Assuntos
Vírus da Dengue , Dengue , Humanos , Peptídeos Antimicrobianos , Antivirais/farmacologia , Antivirais/uso terapêutico , Antivirais/química , RNA Helicases DEAD-box/metabolismo , RNA Helicases DEAD-box/farmacologia , Dengue/tratamento farmacológico , Vírus da Dengue/genética , Peptídeos/farmacologia , Peptídeos/química , Peptídeos/metabolismo , RNA Viral/genética , Canais de Cátion TRPV , Replicação Viral
7.
BMJ Open ; 13(7): e074469, 2023 07 12.
Artigo em Inglês | MEDLINE | ID: mdl-37438057

RESUMO

OBJECTIVE: This study explores the effectiveness of a comprehensive licensure review and adaptive quizzing assignments intervention in improving the performance of undergraduate senior nursing students on the end-of-programme exit exam. DESIGN: A quasi-experimental single-group design was used to compare pretest and post-test scores through computerised adaptive tests. SETTING: The setting was a nursing college in Saudi Arabia. PARTICIPANTS: The study included 292 senior nursing students enrolled in the Bachelor of Science in Nursing programme. INTERVENTION: A comprehensive licensure review bundled with adaptive quizzing assignments was delivered over 15 weeks in the academic year 2021-2022. The bundle was guided by the elaboration theory, and it included 3-hour synchronous lectures every week and 23 adaptive quizzing assignments that covered weekly content. PRIMARY AND SECONDARY OUTCOME MEASURES: Students' mastery scores and the percentage of correct answers were the primary and secondary measures, respectively. Both measures were collected in the pretest and post-test (exit examination). Additionally, demographic characteristics were collected in the pre-test using an online survey. RESULTS: The overall mean of the mastery score was statistically significantly higher in the exit exam (M=2.51, SD=1.70) than in the pretest (M=1.45, SD=0.44; p<0.001). Although the overall mean of the mastery score in the exit exam did not reach the cut-off score, students who demonstrated the required knowledge and satisfactory performance in the pretest achieved a mastery score above the cut-off. The percentage of correct answers was statistically significantly higher in the exit exam (M=58.59%, SD=9.50) than in the pretest (M=49.32%, SD=9.78; p<0.001). A statistically significant difference in students' performance based on gender, age and grade point average was observed. CONCLUSIONS: A comprehensive licensure review and adaptive quizzing assignments intervention bundle fostered the performance of undergraduate nursing students in the end-of-programme exit exam.


Assuntos
Bacharelado em Enfermagem , Estudantes de Enfermagem , Humanos , Arábia Saudita , Conhecimento , Licenciamento
8.
Midwifery ; 123: 103714, 2023 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-37229839

RESUMO

BACKGROUND: Mistreatment of women during childbirth is a global issue and a violation of fundamental human rights. Respectful maternity care has been affirmed as a universal right of childbearing women. However, little is known about the level of respect experienced by women in the Kingdom of Saudi Arabia (KSA); which is undergoing key reforms in the scope of its healthcare provision. We explored the occurrence of respect perceived by women giving birth in the KSA and compared results between national healthcare sectors, as well as with previous international studies. METHOD: We conducted a cross-sectional study using an online survey. The online questionnaire included demographic questions, a translation of the internationally validated Mother on Respect index (MORi) scale, which we adapted to investigate KSA women's experiences, and questions to further investigate women's experiences (e.g. respect of privacy). Women who gave birth within five years at a Saudi healthcare facility were recruited through social media using a snowballing approach. RESULTS: Overall, 586 participants were recruited, 54% of whom had been cared for in government hospitals, 65% were aged between 25 and 34, and almost 79% had a BSc or higher qualification. Overall, women's perception about respectful maternity care was positive, however, opinions varied between governmental and private sectors. Women cared for in the government sector reported significantly lower levels of respect compared to those cared for in the private sector (ß = -.132, p = .001). The results also highlighted an issue of concern: one in five women (21.8%) reported having been physically abused. Our participants perceived their childbirth experiences to be less respectful compared to those in other high-income countries. CONCLUSION: Women birthing in the private sector reported a more respectful experience, which may be explained by the private sector being more consumer-focused. Women who gave birth in the KSA perceived their care to be less respectful than women giving birth in Canada and the USA. Beginning to understand what has provoked the occurrences of mistreatment in childbirth worldwide will inevitably contribute to the development of a solution. Respectful maternity care should be focused on providing women-centred care and quality of care which meets the WHO vision for women's and their families' needs being fulfilled and respected.


Assuntos
Serviços de Saúde Materna , Gestantes , Gravidez , Feminino , Humanos , Adulto , Estudos Transversais , Arábia Saudita , Qualidade da Assistência à Saúde , Parto , Parto Obstétrico/métodos , Atenção à Saúde , Atitude do Pessoal de Saúde
9.
Medicina (Kaunas) ; 59(2)2023 Jan 29.
Artigo em Inglês | MEDLINE | ID: mdl-36837462

RESUMO

The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) causes respiratory disorders, with disease severity ranging from asymptomatic to critical manifestations. The current retrospective study compared the efficacies of different antiviral regimens used in patients suffering from severe COVID-19 disease from 19 January 2020 to December 2021 in a single center in Saudi Arabia. In total, 188 patients were enrolled in the current study, including 158 patients treated with different antiviral regimens, and 30 who did not receive any antiviral treatment. Different antiviral regimens, including favipiravir, remdesivir, oseltamivir, favipiravir/remdesivir, and favipiravir/oseltamivir were adopted. The effects of using different antivirals and antibiotics on the survival rate were evaluated, as well as the presence of comorbidities. Among all severely affected patients, 39/188 (20.7%) survived. Both age and comorbidities, including diabetes and hypertension, were significantly correlated with high case fatality following SARS-CoV-2 infection. Remdesivir alone and the combination of favipiravir and remdesivir increased the survival rate. Surprisingly, both imipenem and linezolid helped in the deterioration of disease outcome in the patients. A negative correlation was detected between increased mortality and the use of favipiravir and the use of either imipenem or linezolid. Among the compared antiviral regimens used in the treatment of severe COVID-19, remdesivir was found to be an effective antiviral that reduces COVID-19 case fatality. Antibiotic treatment using imipenem and/or linezolid should be carefully re-evaluated.


Assuntos
COVID-19 , Humanos , Antivirais/uso terapêutico , Estudos Retrospectivos , SARS-CoV-2 , Oseltamivir , Linezolida , Imipenem
10.
Heart Surg Forum ; 26(6): E705-E713, 2023 Dec 13.
Artigo em Inglês | MEDLINE | ID: mdl-38178339

RESUMO

BACKGROUND: Female sex is considered an independent predictor for mortality and morbidity following cardiac surgery. This study is to review the outcomes of adult cardiac surgery between males and females in a Saudi tertiary referral hospital. METHOD: This was a retrospective study for 925 adult patients operated on for ischemic coronary artery disease and acquired aortic and mitral valvular heart disease from 2015 to August 2023. We analyzed patient characteristics, intraoperative data, and postoperative results to compare outcomes between males and females. RESULTS: Preoperative risk factors were not significantly different in both groups. Postoperative outcomes showed gender-based differences. In univariable analysis, females, compared to males, had significantly greater odds of prolonged postoperative ventilation (>24 hours), 32.8% of females compared to 20.7% of males (p < 0.001). Also, sternal wound infection was notably higher among females (13.3%) (p < 0.001). Mortality also exhibited a significant association, with 14.2% of females experiencing mortality compared to 9.4% of males (p = 0.049). In the multivariable analysis for elevated postoperative troponin, the use of pre-operative intra-aortic balloon pump, urgent/emergent surgery, elevated pre-operative troponin and combined bypass grafting with valve surgery, were also predictive of higher post-operative troponin concentrations (beta = 0.43, 95% CI: 0.25 to 0.62, p < 0.001). CONCLUSION: Females in Saudi Arabia have an increased risk of short-term morbidity and mortality after cardiac surgery compared to males. Vague and delayed presentation and then the late diagnosis and referral are likely the main contributing factors. This highlights the need to implement preoperative measures to improve early diagnosis and referral to eliminate gender bias.


Assuntos
Procedimentos Cirúrgicos Cardíacos , Doenças das Valvas Cardíacas , Adulto , Humanos , Masculino , Feminino , Estudos Retrospectivos , Arábia Saudita/epidemiologia , Ponte de Artéria Coronária/efeitos adversos , Complicações Pós-Operatórias/etiologia , Sexismo , Procedimentos Cirúrgicos Cardíacos/efeitos adversos , Doenças das Valvas Cardíacas/cirurgia , Fatores de Risco , Troponina , Resultado do Tratamento
11.
J Infect Public Health ; 15(12): 1503-1507, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36427409

RESUMO

BACKGROUND: Understanding the impact of SARS-CoV-2 infection on pregnancy outcomes and of pregnancy on COVID-19 outcomes is critical for ensuring proper prenatal and antenatal care. No similar studies have been published in Saudi Arabia. METHODS: We performed a prospective cohort study of pregnant women with confirmed SARS-CoV-2 infection who presented at King Faisal Specialist Hospital and Research Center (KFSHRC) in Riyadh, Kingdom of Saudi Arabia. COVID-19 staging was performed, pregnancy-related complications were assessed, and neonatal infection was evaluated. RESULTS: We enrolled 81 patients (mean age 31.75 years, SD 5.25) of which there were 17 cases in the first trimester, 20 in the second trimester, and 34 in the third trimester. The distribution of COVID-19 severity was 40 patients with Stage A, 36 with Stage B, 4 with Stage C, and 1 with Stage D. Complications were pregnancy loss in 2 patients (one in each first and second trimester) and 1 fetal death after 20 weeks of pregnancy, 7 patients with fetal growth restriction, and 8 with pre-term delivery. CONCLUSIONS: We did not observe an unusual frequency of pregnancy-related complications due to SARS-CoV-2 infection in this high-risk obstetric population and there was no evidence of vertical transmission in newborns from women who delivered while positive for the virus.


Assuntos
Aborto Espontâneo , COVID-19 , Recém-Nascido , Gravidez , Feminino , Humanos , Adulto , COVID-19/epidemiologia , Estudos Prospectivos , SARS-CoV-2 , Estudos de Coortes
12.
Cureus ; 14(6): e26055, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-35865421

RESUMO

Objective Single intrauterine fetal death (sIUFD) occurs in approximately 6% of twin pregnancies. If it occurs in the second and third trimesters, it places the co-twin at substantial risk, including that of preterm delivery and associated comorbidities of prematurity or neonatal death. The aim of this present study was to determine the outcome of surviving co-twins following spontaneous single intrauterine fetal death. Methods This is a retrospective, observational, cohort study that included all twin pregnancies delivered between January 2015 to December 2019 with a gestational age of 24 weeks or more. Maternal data included were: age, medical illnesses, conceivable methods, chorionicity, and complications during pregnancy. Gestational age of intrauterine fetal demise, gestational age of the surviving twin delivery, mode of delivery, and medications used during pregnancy were also recorded. Neonatal data included: gestational age, gender, birth weight, Apgar score, and complications of prematurity. Results Twenty-two pregnancies were found to be complicated by sIUFD and included in the present study (group 1), compared to 26 twins with no sIUFD (group 2). The incidence of sIUFD in twin pregnancies after 20 weeks of pregnancy was 4.4%. The gestational age (weeks) in group 1 was 34.5 (29-39) and in group 2 was 32 (26-38). The frequency of preterm delivery 81.8% in group 1 (59% monochorionic) and 69.2% (100% dichorionic) in group 2. No significant statistical differences were found between the two groups in complications of prematurity. Conclusions We conclude that delaying delivery in twin pregnancies complicated by single intrauterine demise with regular follow-up may lead to delivering infants with fewer complications of prematurity.

13.
Compend Contin Educ Dent ; 43(7): e1-e4, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35763455

RESUMO

Dental implant treatment has been proven to be a successful therapy to rehabilitate single, partial, and fully edentulous sites. Evidence shows that the use of implant-supported restorations is predictable and can deliver long-term success. However, discontinuation of implant systems can be challenging for prosthesis maintenance. In this case report, a 70-year-old female patient presented to the implant department at New York University College of Dentistry with a press-fit implant with a one-piece cementable abutment that was placed more than 30 years prior. The patient's chief complaint was that the crown kept falling off. Upon evaluation, it was found that the implant was well-integrated in bone with no signs of infection. Explantation and replacement of the well-integrated implant was not considered the best option. An alternative approach was to address the retention of the abutment. The purpose of this case report is to demonstrate an intraoral technique for fabricating a custom cement-retained crown over a non-retentive one-piece press-fit implant.


Assuntos
Coroas , Prótese Dentária Fixada por Implante , Idoso , Cimentos Dentários , Feminino , Humanos
14.
Saudi Dent J ; 33(6): 316-321, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-34434033

RESUMO

INTRODUCTION: The aim of this study was to compare the fracture resistance of endodontically treated premolars after the application of three restorative materials (i.e., direct composite, indirect composite, and computer aided design/computer aided manufacturing CAD/CAM ceramic inlays) to restore a conservative occluso-mesial cavity preparation. MATERIALS AND METHODS: sixty sound maxillary premolars were divided into four experimental groups; group A: the control group, where neither root canal treatment nor preparation were performed; group B: teeth were restored with a direct Filtek Z250 composite restorative material; group C: teeth were restored with an indirect inlay Filtek Z250 composite restorative material; group D: teeth were restored with IPS E.Max CAD/CAM monolithic ceramic inlays. Access cavities and root canal treatment procedures were conducted using standard techniques. Then, the cavities were restored with direct composite restorative materials following manufacturer's instructions. Each group received mesial-occlusal cavities and restored according to the designated group.Teeth from all groups were exposed to a thermocycling regimen of 500 cycles in water baths at 5-55 °C. Then, each specimen was mounted on a special fixture on a computer controlled Instron Universal Testing Machine. An axial compressive load was applied to the palatal cusp up to failure at an angle of 45°. The force was applied at the rate of 2 mm/min until visible or audible evidence of fracture was observed. The force at fracture was measured in MPa, and the fracture mode was recorded as either favorable [restorable adhesive fracture above the cemento-enamel junction (CEJ)] or unfavorale (non-restorable fractures under CEJ). The obtained data were analyzed using the SPSS version 21.0 statistical software. One-way ANOVA and Tukey's test were used to compare the mean values of maximum load of the four groups. Pearson's Chi-square test was used to compare the distribution of failure mode among the four groups. The p-value of ≤ 0.05 was used to report the statistical significance of results.

15.
Int J Periodontics Restorative Dent ; 41(3): e121-e128, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34076648

RESUMO

The posterior maxilla has traditionally presented a challenge for successful placement of dental implants due to a combination of poor bone quality, ridge atrophy, and pneumatization of the sinus floor following tooth extraction. However, with the successful and predictable surgical outcomes reported in the literature, more clinicians and patients are choosing an implant-supported restoration in the edentulous posterior maxilla. Consequently, sinus elevation and augmentation have gained more popularity. Extensive research has been conducted on types of bone graft materials and implants, less-invasive techniques to perform sinus augmentation, and timing for implant placement for sinus grafting. Despite the predictability of the techniques and biomaterials employed in sinus grafting procedures, intra- and postoperative complications are common. Much of the current literature discusses the local risk factors related to sinus augmentation, with few studies focusing on the patient-related risk factors. The purpose of this review is to identify, evaluate, and discuss the possible management of patient-related risk factors to allow for more predictable maxillary sinus floor augmentation outcomes.


Assuntos
Aumento do Rebordo Alveolar , Implantes Dentários , Levantamento do Assoalho do Seio Maxilar , Transplante Ósseo , Implantação Dentária Endóssea , Falha de Restauração Dentária , Humanos , Maxila/cirurgia , Seio Maxilar/diagnóstico por imagem , Seio Maxilar/cirurgia , Fatores de Risco
16.
Int J Nurs Educ Scholarsh ; 16(1)2019 Feb 23.
Artigo em Inglês | MEDLINE | ID: mdl-30798324

RESUMO

Aim To explore the challenges in nursing education in Saudi Arabia from nurse educators' and leaders' perspectives. Background Saudi Arabia considerably lacks Saudi nurses and most nurses in Saudi healthcare facilities are expatriates with diverse academic, cultural, and linguistic backgrounds. The perception regarding nurses' profession and their low status in Saudi Arabia affect the nursing profession negatively, leading to staff insufficiency. Understanding the difficulties of the nursing profession could help intervene accordingly, in encouraging students to pursue a career in nursing. Methods An exploratory qualitative method was used. Three Saudi nursing educators and four leaders were interviewed. They were recruited through purposive sampling. The interviews were transcribed verbatim and data were analyzed using thematic analysis. Findings Participants indicated that nursing education in Saudi Arabia is facing multiple challenges requiring serious attention from Saudi leaders. The challenges were divided to four themes and different categories; cultural challenges, educational challenges, organizational challenges (weak nursing authority, lack of acknowledgement for Saudi nurses), and work challenges (poor working environment, language barrier). Discussion The challenges that face nursing education in Saudi Arabia were mainly at three levels: management, system, and social. These challenges were the reasons for Saudi nurses to leave the profession. Conclusion This study revealed some of the challenges facing nursing education in Saudi Arabia. These challenges are not unique to Saudi Arabia but knowing about these challenges will help nurse educators and leaders to improve nursing programs, enhance students' clinical experiences, and promote nursing profession in Saudi Arabia.


Assuntos
Diversidade Cultural , Educação em Enfermagem/organização & administração , Docentes de Enfermagem/psicologia , Liderança , Adulto , Atitude do Pessoal de Saúde , Feminino , Humanos , Masculino , Pesquisa Qualitativa , Melhoria de Qualidade , Arábia Saudita , Recursos Humanos/organização & administração
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