Canan Baydemir

Kocaeli University · Department of Biostatistics and Medical Informatics

Objectives This study aimed to evaluate the 18-month clinical performance of two different one-step adhesives that were applied alone or with an additional hydrophobic adhesive layer to noncarious cervical lesions. Methods and Materials One hundred sixty teeth in 31 patients were included in the study. Each patient received at least four restorati...

Type 2 diabetes mellitus (T2DM) related bone fracture. The effects of glucagon-like peptide-1 receptor analogs for the treatment of T2DM on bone are controversial in human studies. This study aimed to compare the effects of GLP-1 receptor analogs exenatide and insulin glargine treatment on bone turnover marker levels and bone mineral density (BMD)...

The purpose of this study was to determine the effect of lavender oil inhalation on the anxiety and comfort levels of patients scheduled for colonoscopy. Seventy-three experimental group patients scheduled for colonoscopy at a training and research hospital in the west of Turkey in June to September 2022 and 72 control group patients were included...

Purpose: To assess the clinical performance of restorations with ground and unground enamel for diastema closure. Methods and materials: Twenty-four patients attended and received two to ten composite build-ups for diastema closure. The restorations were performed separately by grinding and not grinding the enamel on the proximal surfaces on sym...

Objective: Diabetes Mellitus constitutes a significant health concern given its incidence and associated complications. Furthermore, obesity, being a chronic disease, represents a risk factor for hypertension, cardiovascular diseases, and diabetes. In light of these considerations, our study aims to perform a public screening for conditions that ar...

The objective of this study was to analyze and assess the clinical performance of direct composite restorations using a nanohybrid and a nanofill composite material for posterior teeth in patients with amelogenesis imperfecta (AI). This study involved 15 patients between the ages of 14 and 30 years suffering from amelogenesis imperfecta (AI). Durin...

The objective of this study was to analyze and assess the clinical performance of direct composite restorations using a nanohybrid and a nanofill composite material for posterior teeth in patients with amelogenesis imperfecta (AI). This study involved 15 patients between the ages of 14 and 30 years suffering from amelogenesis imperfecta (AI). Durin...

Objectives: To evaluate the clinical performance of universal adhesives with self-etch mode regarding their functional monomer and HEMA contents. Methods: The study involved 27 patients (108 restorations) aged between 34 and 69 (mean age: 53.8). Each restoration contained one of four different universal adhesives applied in self-etch mode: G-Pre...

Objective: To evaluate the clinical performance of a 1-step self-etch dentin adhesive that was applied according to the manufacturers' recommendations, doubling the adhesive application time and layer in Class I cavities with a composite resin. Materials and methods: A total of 39 patients aged between 14 and 43 (mean age: 19.1) years were enrol...

Objective: The aim of our study is to examine the effects of neonatal tactile stimulations on the brain structures that previously defined as the focus of epilepsy in the Wistar-Albino-Glaxo from Rijswijk (WAG/Rij) rat brain with genetic absence epilepsy. Methods: In the present research, morphology and density of dendritic spines were analyzed...

Objective: In our study, we aimed to examine the proportion of comorbidities in survivors and non-survivors and investigate the association between the comorbidities and COVID-19 related mortality. Methods: We searched Scopus, PubMed and Web of Science for articles up to January, 2021. Patients’ outcomes were selected as survived and non-survived....

Objectives The purpose of this study was to identify the prevalence and predisposing and etiologic factors of dentin hypersensitivity (DH), as well as the demographic characteristics of patients. Materials and methods The 1210 patients were examined. The research was based on a two-step investigation: questionnaire and clinical examination. DH was...

The aim of the study is to investigate the effects of intense anxiety and hopelessness experienced by healthcare workers during the pandemic on their quality of life. This cross-sectional, online questionnaire-based study was conducted between August 31, 2020 and October 31, 2020, with 729 healthcare workers in Turkey. The study showed that hopeles...

Purpose: The purpose of this study was to determine the relationships between anxiety and depression experienced by surgical nurses in the work environment and their quality of work life. Materials and Methods: Two hundred twelve surgical nurses were administered a sociodemographic form, the Hospital Anxiety Depression Scale, and the Nurse’ Quality...

Objective:The objective of this study is to examine the perceived sources and levels of stress reported by three different dental faculty students from Turkey. This study also aims to compare stress sources among these students with respect to the role of faculties, specific curricula and institutional differences.Methods:In total, 1,294 students p...

Object: To investigate the effect of anxiety and hopelessness on the quality of life of healthcare workers. Methods: This cross-sectional, online questionnaire-based study was conducted between August 31 - September 30, 2020, with 729 healthcare workers in Turkey. The Sociodemographic Information Form, the Turkish version of the Shorter Version of...

Background: In the midst of the Covid-19 pandemic, healthcare workers increasingly encounter serious ethical issues that negatively affect their professionalism. Purpose: The study aims to examine the ethical sensitivity levels of physicians and nurses working in surgical units during the Covid-19 pandemic and the associating factors. Method: The s...

Background: The evaluation of the quality of nursing care by patients and nurses is important for improving care. Purpose: The aim was to determine patients' and nurses' perceptions of the quality of nursing care in surgical clinics and influencing factors. Methods: The sample of this cross-sectional, descriptive, and comparative study consist...

This study aims to analyze and assess the effects of three particular dentin pretreatment solutions on the bond durability of a two‐step self‐etch adhesive (Optibond XTR) applied to dentin after ageing for 2 years. Thirty‐five third molars which were extracted (n = 5 for μTBS, n = 2 for nanoleakage) were divided into five groups: Group 1:Control (n...

Purpose This study aims to conduct the reliability and validity study of the Turkish version of the Nurse Stress Scale (NSS), which determines the job stress of nurses. Design and Methods The sample of the methodological study consisted of 349 nurses. Results The factor load of the scale was in the appropriate range (0.32‐0.79), Cronbach's α was...

Background In children <2 years old, studies evaluating the value of skin prick tests (SPT) and specific immunoglobulin E (sIgE) results to predict persistence or resolution of egg allergy (EA) are limited. Additionally, the value of egg yolk (EY) sIgE and fresh egg (FE) SPT has not been well characterized. Objective We investigated the optimal de...

ÖZ Amaç: Araştırmanın amacı, cerrahi servislerinde yatan hastaların hemşirelik bakım kalitesi algılamaları ile memnuniyet durumları arasındaki ilişkiyi belirlemektir. Yöntem: Tanımlayıcı-ilişki arayıcı tipte yapılan araştırmanın örneklemini bir üniversite hastanesinde yatan ve cerrahi girişim uygulanan 224 hasta oluşturdu. Araştırmada verileri topl...

Background: It is stated that high ethical sensitivity positively affects the quality of nursing care. However, the relationship between nursing care quality and ethical sensitivity has not been clearly demonstrated in researches. Aim: This study was carried out to determine the relationship between surgical nurses’ care behaviors and their ethica...

Purpose: To evaluate the clinical performance of direct posterior composite restorations with and without short glass-fiber (SGF) reinforced composite in endodontically treated teeth. Materials and methods: Twenty-four patients (mean age 32.5 years) were included in the study and two molars of each patient received endodontic treatment. After en...

OBJECTIVE Breast cancer (BC) is a heterogeneous malignancy and differs widely among different patients. The aim of this study was to investigate the relationship between the HER2/TOP2A gene aberrations and promoter methylation in RASSF1A/APC genes in patients with high-risk BC. METHODS Formalin-fixed paraffin embedded (FFPE) tissue samples from pri...

Er İ, Günlemez A, Baydemir C, Kılıçbay F, Ersu R, Uyan ZS. Impulse oscillometry reference values and correlation with predictors in Turkish preschool children. Turk J Pediatr 2019; 61: 560-567. Impulse oscillometry (IOS) is a noninvasive, rapid technique requiring passive cooperation that allows for evaluation of lung function through the measureme...

ÖZET Amaç: Çalışma, hemşirelik bakımını olumsuz etkileyen etmenler ile hemşirelerin stresle başa çıkma yöntemleri arasındaki ilişkiyi incelemek amacıyla planlandı. Gereç ve Yöntemler: Kesitsel-tanımlayıcı tipte yapılan araştırmanın örneklemini bir üniversite hastanesinde çalışan 184 hemşire oluşturdu. Araştırmada verileri toplamak amacıyla “Hemşire...

Aim : Measurement of blood bilirubin levels is a crucial analysis because of the toxic effects of bilirubin on brain tissue, particularly in preterm neonates. The aim of this study was to investigate the consistency of the total bilirubin values obtained by the blood gas analyzer and the autoanalyzer. Material and Methods : In this study, we used t...

Purpose: To investigate the effect of sandblasting powder particles on microtensile bond strength (μTBS) of dual-cure adhesive cement to CAD/CAM blocks. Materials and methods: CAD/CAM blocks (Cerasmart, VITA, and LAVA) were cut in slabs and divided into groups: group 1, no sandblasting; group 2, sandblasted with 27-μm Al2 O3 ; group 3, sandblast...

Breast cancer (BC) is a heterogeneous and complex disease characterized by the combination of multiple genetic alterations. HER2 gene amplification have prognostic and therapeutic implications in invasive BC. TOP2A is an essential nuclear enzyme that changes DNA topology. RASSF1A /APC genes are putative tumor-suppressor genes that frequently inacti...

Background: Limited studies conducted on children <2 years old and/or involving a skin prick test (SPT) for fresh milk (FM) have examined the predictive value of allergometric tests for outgrowth of cow's milk allergy (CMA). We investigated the optimal decision points for outgrowth (ODPfo) with SPT for commercial cow's milk extract (CE) and FM and...

Purpose: Bendopnea is a recently reported novel symptom in patients with heart failure (HF) defined as shortness of breath when bending forward. It has been demonstrated that bendopnea is associated with advanced symptoms and worse outcomes. The aim of this study was to assess the presence of bendopnea and its clinical importance with regards to f...

Objective: This study aims to assess the efficacy of first aid training provided to academic and administrative staff working at a state university. Materials and methods: The study sample included 318 academic and administrative staff members from a state university. Between the dates of December 15, 2017 to December 22, 2017, the study participan...

Introduction This study was conducted to evaluate the eating habits of medical students at Kocaeli University in northwest Turkey in terms of their ability to apply their academic knowledge regarding healthy lifestyles to their own lives using the Mediterranean Diet Quality Index (KIDMED). Methods In this cross-sectional study, a questionnaire inc...

Background The mean platelet volume (MPV), the most commonly used measure of the platelet size, is a cheap and easy-to-use marker of the platelet activation. We aimed to evaluate the relationship between preprocedural MPV and other hematologic blood count parameters and in-stent restenosis in patients with superficial femoral artery (SFA) stenting....

Background: The prevalence and mortality of sepsis are largely unknown in Turkey, a country with high antibiotic resistance. A national, multicenter, point-prevalence study was conducted to determine the prevalence, causative microorganisms, and outcome of sepsis in intensive care units (ICUs) in Turkey. Methods: A total of 132 ICUs from 94 hospita...

The purpose of this study was to evaluate a nanofilled and a nanohybrid composite, in combination with manufacturer-recommended etch-and-rinse adhesives, in class IV cavities. Thirty-four patients aged 14-46 years (mean age, 27.1 years) comprised the study group. Twenty-six patients received two class IV restorations and eight patients received fou...

Background/aim: The purpose of this study is to compare the diagnostic value of hepcidin level with the white blood cell (WBC), C-reactive protein (CRP), procalcitonin (PCT), and interleukin-6 (IL-6) levels in pediatric sepsis and septic shock. Materials and methods: A cohort of 89 individuals were divided into four groups: a healthy control group...

Objective: Late-preterm delivery is known to be associated with potential adverse effects on lung development. Passive smoking may result in alterations of pulmonary function in infants born late-preterm. Impulse oscillometry (IOS) is a noninvasive, rapid and practicable technique that can assess lung function. This study aimed to evaluate the effe...

Background: Anti-tumor necrosis factor-α (anti-TNF-α) drugs used in the treatment of rheumatologic diseases. Objective: This study was conducted to examine the effects of education about the drug use and consultation by telephone calls on treatment adherence and drug-induced challenges in patients under 'the first anti-TNF-α treatment'. Methods...

Objective: The risk stratification for prognosis in heart failure is very important for optimal disease management and decision making. The aim of this study was to establish a simple discharge 1-year mortality prediction model by integrating data obtained from demographic characteristics, clinical evaluation, laboratory biomarkers and echocardiogr...

Clinical Relevance The clinical performance of different solvent-based dentin adhesives with nanofill or nanohybrid composites in Class III restorations was satisfactory. Marginal discoloration and marginal integrity deterioration were reasons for the failure of the self-etch adhesive systems in Class III cavities. SUMMARY Purpose: To evaluate the...

Background Assessment of risk for all-cause mortality and re-hospitalization is an important task during discharge of acute heart failure (AHF) patients, as they warrant different management strategies. Treatment with optimal medical therapy may change predictors for these 2 end-points in AHF patients with renal dysfunction. The aim of this study w...

Aim: The aim of this study was to evaluate the pulmonary functions of preschool children born late-preterm. Material and methods: Children aged between 3-7 years who were born at 34(0/7-)36(6/7) weeks' gestation represented the target sample. Patients with a diagnosis of congenital cardiac, pulmonary and/or muscle diseases were excluded. Respira...

Categorical variables are frequently used in studies related to health sciences. Methods that used in the analysis of studies having such type of data, in some cases may be insufficient and it is also difficult to interpret the relationship between such variables. One of the methods used to eliminate this problem, is the multiple correspondence ana...

The purpose of this study was to compare the incidence and longitudinal propagation of dentin defects after gutta-percha removal with hand and rotary instruments using microcomputed tomography. Twenty mandibular incisors were prepared using the balanced-force technique and scanned in a 19.9 μ m resolution. Following filling with the lateral compact...

Objective: The purpose of this study was to evaluate the effect of double-application coats and times on microtensile bond strength (μTBS) and adhesive-dentin interfaces created by dentin adhesive systems after 6 months of storage in water. Materials and methods: Two-hundred sixteen extracted non-carious human third molars were selected for the...

Background: - Hydralazine-nitrates combination is recommended for systolic heart failure (HFrEF) patients who are symptomatic despite guideline directed medical therapy (GDMT). Use of nitrates alone for this indication is not well-established. This study aims to evaluate the effect of oral nitrates on all-cause mortality and hospitalization in HFr...

Aims: The prevention of acute kidney injury (AKI) can be lifesaving for intensive care unit (ICU) patients. However, conventional methods are not sufficient for predicting the risk for approaching AKI. In this study, the promising biomarker NGAL(neutrophil gelatinase-associated lipocalin) was compared to CysC (Cystatin C ) for indicating risk of f...

Background: This study investigated the relationship between the neutrophil-to-lymphocyte ratio (NLR) and platelet-to-lymphocyte ratio (PLR) values with oxidative stress in active Crohn's disease (CD) patients. We investigated whether these parameters were useful for follow-up assessments of CD activity. Methods: Forty-nine patients with a confi...

Purpose: To examine microleakage around Class-V restorations bonded with 3 current all-in-one adhesive systems in the presence or absence of surface-sealant in different evaluation groups. Materials and Methods: Clearfil S3 Bond, G-Aenial Bond, and Optibond All-in-One (AiO), were used in the Class-V cavities in accordance with the manufacturer’s in...

Introduction: Macrolide antibiotics maybe effective in the treatment of post transplant bronchiolitis obliterans (BO) due to their antiinflammatory and immunomodulatory properties. Aim: We aimed to evaluate the effectiveness of azithromycin therapy in children with postinfectious BO (PIBO). Methods: The medical files of the PIBO patients followed a...

Background: The aim of this study was to investigate the effect of natural antioxidants resveratrol and quercetin on oxidative stress and secondary cell damage in rats with acute spinal cord injury. Methods: In this experimental study, 42 male Sprague-Dawley rats were used. Spinal cord injury was performed with clip compression method at level o...

Introduction: This study was conducted to evaluate the occurrence of violent incidents in the workplace among the various professional groups working in the emergency department. We characterised the types of violence encountered by different occupation groups and the attitude of individuals working in different capacities. Methods: This cross-s...

Background This study investigated risk factors of childhood urinary tract infection (UTI) associated with extended‐spectrum β‐lactamase (ESBL)‐producing bacteria (ESBL‐positive UTI) and evaluated antimicrobial resistance as well as empiric treatment of childhood UTI. Methods The records of children with positive urine culture between 1 January 20...

Aim: This study aimed: (i) to identify and compare the prevalence of temporomandibular disorders (TMDs) and oral parafunctions among children living in child-protection institutions (CLCPI) with children living with their parents (CLWP); (ii) to determine whether or not there is an association between oral parafunctions and TMDs; and (iii) to exam...

Background: There are few studies in children on the natural course of chronic spontaneous urticaria (CSU) because of its relative infrequency in childhood. Objective: To estimate the rate of remission and evaluate the prognostic factors in children with CSU. Method: A total of 52 children with CSU were prospectively followed over a period of...

Objective. Antioxidant effects of lithium chloride (LiCl) and methylprednisolone were investigated in an experimental spinal cord injury. Methods. Spinal cord injury was performed by cerebral vascular clip with a closing force of 40 g; the duration of epidural compression was 30 seconds after T9-11 total laminectomy in the rat spine. The study was...

For forensic age estimation, radiographic assessment of third molar mineralization is important between 14 and 21 years which coincides with the legal age in most countries. The spheno-occipital synchondrosis (SOS) is an important growth site during development, and its use for age estimation is beneficial when combined with other markers. In this...

Background: Pulmonary function tests are important in the diagnosis and follow-up of airway disease in cystic fibrosis (CF). Conventional spirometry for which repeated forced expiration maneuver are needed is considered as the main method. Impulse oscillometry (IOS) is a non-invasive method, which needs minimal cooperation. We performed a prospect...

Introduction: Our aim was to predict the chemical composition of kidney stones according to their twinkle artefact (TA) features obtained by in vivo color Doppler ultrasonography and to determine the potential factors affecting the formation and intensity of TAs. Materials and methods: A total of 101 patients who met the inclusion criteria were...

Objectives: The aim of this study was to evaluate the effect of three different drinks on the color parameters of four different restorative materials. Materials and methods: Three different composites (Filtek Ultimate Universal Restorative, Filtek Ultimate Flowable, and Filtek Silorane, 3M ESPE) and a polyacid-modified composite resin material...

Purpose: The purpose of the study was to evaluate the postoperative sensitivity of posterior Class I composite restoration at short-term, restorated with two different all-in-one self-etch adhesives with or without surface sealant application. Materials and Methods: 44 restorations were inserted in 11 patients who required Class I restorations in t...

Background There is a paucity of data on lung physiology in late-preterm who may be exposed to a risk of decline in lung functions during childhood. In this study, we aimed to evaluate the lung function in preschool children born late-preterm using impulse oscillometry (IOS) and to compare the results with those obtained in healthy term-born childr...