Browsing Faculty Publications (HBMCDM) by Author "Hassan Khamis, Amar"
Now showing items 21-40 of 78
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Effect from Autoclave Sterilization and Usage on the Fracture Resistance of Heat-Treated Nickel–Titanium Rotary Files
El Abed, Rashid; Alshehhi, Aisha; Alkhatib, Zuhair; Hassan Khamis, Amar; Jamal, Mohamed (2023)Abstract: This study aimed to assess the effect of mechanical loading and heating on the cyclic fatigue and torsional fracture resistances of heat-treated nickel–titanium files after usage and autoclaving. Sixty files ... -
The Effect of Chlorhexidine on Bacterial Contamination of Hall Technique Elastomeric Orthodontic Separators and Gingival Health: A Pilot Study
AlNoman, Nada; Al Halabi, Manal; Kowash, Mawlood; Hassan Khamis, Amar; Salami, Anas; Senok, Abiola; Nassar, Rania; Hussein, Iyad (2023)Objective: To study the effect of chlorhexidine on elastomeric orthodontic separators (EOS) bacterial-colonisation and gingival-health in Hall technique (HT) patients. Material and Methods: Prospective invivo pilot ... -
The Effects of Objective and Perceived Neighborhood Amenities on Youths’ Wellbeing: The Case of the City of Al Ain, UAE
Hassan Khamis, Amar (2023)Abstract: The last 20 years have witnessed steady research originating in Western societies on the possible correlation between spatial qualities of places and individual wellbeing. Cultural and place-specific factors, ... -
Emotional Distress and Metabolic Control in Diabetic Patients Attending Primary Health Care in the Eastern Province, Saudi Arabia
Hassan Khamis, Amar (2020)Background: Recognition and treatment of emotional distress, which affects 20 to 40% of outpatients with type 1 or type 2 diabetes, are important because of its association with worse diabetes self-care, poor glycemic ... -
Enamel defects and caries prevalence in preterm children aged 5-10 years in Dubai
Alshehhi, Anood; Al Halabi, Manal; Hussein, Iyad; Salami, Anas; Hassan Khamis, Amar; Kowash, Mawlood (2019)Background: Enamel defects (EDs) are commonly reported dental findings in preterm/low birthweight children. EDs potentially increase caries susceptibility. Aim: To assess the prevalence of EDs and dental caries in ... -
Evaluation of root and canal morphology of maxillary permanent first molars in an Emirati population; a cone-beam computed tomography study
Al Mheiri, Eman; Chaudhry, Jahanzeb; El Abed, Rashid; Hassan Khamis, Amar; Jamal, Mohamed (2020)Background: The aim of this study was to analyze the root and canal morphology of the maxillary permanent first molars in an Emirati population using cone-beam computed tomography (CBCT). Methods: Two hundred and ... -
Evaluation of the influence of crown-implant ratio on short implants supporting single crown in the posterior maxilla and mandible: a retrospective analysis
Darwish, Samy; Bain, Crawford; Hassan Khamis, Amar (2016-09)Abstract: Short implants are considered a recent advancement in the dental implantology field. Machined short implants have been around since the 1980s but their high failure rate was used to justify sinus lifts; block ... -
Exploring the value of the learners perception of teaching effectiveness in informing faculty development needs: A mixed-methods study
Otaki, Farah; Hassan Khamis, Amar; AlGurg, Reem; Davis, Dave; Zary, Nabil (2020)Abstract: The evaluation of a faculty development intervention needs to start at the outset, and not as an afterthought. Moreover, it is important to evaluate the degree to which the predefined impact is attained as a ... -
Fracture Resistance of Heat-Treated Nickel-Titanium Rotary Files After Usage and Autoclave Sterilization: an in vitro study
El Abed, Rashid; Alshehhi, Aisha; Hassan Khamis, Amar; Jamal, Mohamed (2022-08)Introduction: This study aimed to evaluate the dynamic cyclic fatigue resistance of heat treated nickel-titanium (NiTi) files after usage and autoclaving. Methods: Two heat-treated NiTi file systems with tip sizes ... -
Haematological parameters, haemozoin-containing leukocytes in Sudanese children with severe Plasmodium falciparum malaria
Hassan Khamis, Amar (2018-04-30)Introduction: Haemozoin –containing leucocytes (HCL) can be used to predict severe malaria. Methodology: A case –control study was conducted in Singa, Sudan, to investigate the haematological values and HCL in children ... -
Hall technique crowns and children's masseter muscle activity: A surface electromyography pilot study
Abu Serdaneh, Salsabeel; Al Halabi, Manal; Kowash, Mawlood; Hassan Khamis, Amar; Salami, Anas; Hussein, Iyad (2019)Background: Hall technique crowns (HTCs) alter the occlusion temporarily, potentially affecting jaw muscles, particularly the masseter – the primary jaw-closing muscle. Aim: To assess masseter muscle activity (MMA) ... -
Health professionals' perspectives on factors needed to implement nutrition strategy: A questionnaire validation study
Al Gurg, Reem; Alameddine, Mohamad; Hassan Khamis, Amar (2018)Background: Noncommunicable diseases (NCDs) increasingly recognized as a serious, worldwide public health concern. According to the WHO, NCDs are currently responsible for two-thirds of global deaths annually. Nutritional ... -
High diagnostic accuracy of automated rapid Strep A test reduces antibiotic prescriptions for children in the United Arab Emirates
Bin Hendi, Salama; Malik, Zainab A.; Hassan Khamis, Amar; Al-Najjar, Fadil Y. A. (2021)Background: Diagnosis of Group A Streptococcus (GAS) pharyngitis in children is hindered by variable sensitivity of clinical criteria and rapid Strep A tests (SAT), resulting in reliance on throat cultures as the gold ... -
How decisive is the number of distal arterial anastomoses in coronary bypass surgery?
Hassan Khamis, Amar (2021)Background: The benefit of arterial revascularization in coronary surgery remains controversial. The incremental value of additional grafts to the left internal thoracic artery (ITA) has been mainly assessed according ... -
How Do Schoolchildren View Other Children Who Have Discolored Teeth?
Al Khayyal, Moza; Al Halabi, Manal; Hussein, Iyad; Salami, Anas; Hassan Khamis, Amar; Kowash, Mawlood (2021)Objectives: Facial look and expression affect how people are viewed by others. This study aimed to evaluate how schoolchildren in the Emirate of Sharjah, United Arab Emirates view their peers who have discolored teeth. ... -
IL-13 Polymorphism (IL-13 rs1800925 (-1055) (C/T) is Associated with Severe Hepatic Fibrosis in Human Schistosomiasis
Hassan Khamis, Amar (2015-01-25)Abstract: An association study of a cohort of 177 Sudanese patients infected with Schistosoma mansoni {82 (46%) males and 95 (54%) females} was conducted to investigate the correlation of four polymorphisms {IFN-γ rs2069705 ... -
The Impact of Routine CT Scan for Acute Appendicitis on the Negative Appendectomy Rate: Clinical Audit of a Single Center
Hassan Khamis, Amar (2020)Background: Acute appendicitis remains the most common surgical emergency worldwide. Patient usually presents with abdominal pain mainly right lower, which gives tenderness on examination. This may or may not be associated ... -
Incidence of Contrast-Induced Nephropathy after Coronary Procedures in the United Arab Emirates: A Single-Center Study
Hassan Khamis, Amar; Alsheikh-Ali, Alawi (2020)Abstract: Contrast-induced nephropathy (CIN) is a major cause of morbidity and mortality in patients undergoing coronary procedures. The reported incidence of CIN ranges from ~3% to 30%. The profile of patients undergoing ... -
Investigating the evolution of undergraduate medical students perception and performance in relation to an innovative curriculum-based research module: A convergent mixed methods study launching the 8A-Model
Otaki, Farah; Alhashmi, Deena; Hassan Khamis, Amar; Azar, Aida J (2023)Abstract: Background: Embedding into undergraduate medical programs experiential research curricula, based on holistic theories of education which emphasize participation in the social world, remains uncommon. The purpose ... -
Investigating the Relationship Between Resilience, Stress-Coping Strategies, and Learning Approaches to Predict Academic Performance in Undergraduate Medical Students: Protocol for a Proof-of-Concept Study
Alsheikh-Ali, Alawi; Akhras, Aya; Hassan Khamis, Amar; ; Davis, David A (2019)Background: The evolution of an undergraduate medical student into an adept physician is perpetual, demanding, and stressful. Several studies have indicated medical students have a higher predominance of mental health ...