İstanbul Kent Üniversitesi Araştırma ve Akademik Performans Sistemi
DSpace@Kent, İstanbul Kent Üniversitesi’nin bilimsel araştırma ve akademik performansını izleme, analiz etme ve raporlama süreçlerini tek çatı altında buluşturan bütünleşik bilgi sistemidir.
Güncel Gönderiler
Öğe Türü:Öğe, Evaluation of the bond strength of heat-polymerized and auto-polymerized silicone-based soft lining materials to injection-molded, milled, and 3D-printed denture base resins(Elsevier, 2027) Gedikli, Çağla Nur; Bilgin, TayfunAlthough modern dentistry aims to preserve natural teeth, the in crease in life expectancy and the elderly population means that tooth loss will likely occur in the future [1]. Implant-supported complete dentures have been reported as a more effective treatment option for edentulous patients [2,3]. However, complete dentures remain effective due to anatomical, physiological, and financial constraints [4]. Since the first use of complete dentures, the aim has been to reduce errors during the production process and improve the base materials' properties [5]. Polymethyl methacrylate (PMMA) is today's most widely used denture base material due to its many positive properties, such as biocompati bility, ease of processing, low cost, and low water solubility [6,7]. Denture bases can be fabricated conventionally using compression or injection molding techniques or digitally using subtractive or additive manufacturing techniques [8,9]. The introduction and development of computer-aided technology in the production of complete dentures is expected to overcome the diffi culties in traditional complete denture production methods and facili tate the production process [10–12]. Studies have shown that digital complete dentures offer several advantages over conventionally manu factured complete dentures, such as high hydrophilicity, less residual monomer, less microporosity, high color stability, and high adaptability due to the absence of polymerization shrinkage [13–22]. Digital com plete dentures offer significant advantages for clinicians and patients, including reduced clinical appointment time and fewer visits [23,24]. Conventional methods for producing dentures typically require at least five appointments, whereas digital methods can be achieved in just two or three visits, depending on the system used [25]. Digital systems can produce a new prosthesis using archived data without needing clinic appointments in case of a broken or lost prosthesis.Öğe Türü:Öğe, Association between dental development and midpalatal suture maturation in growing patients: A CBCT-based study(Springer Nature, 2026) Şavkan, İpek; Altundal, Gizem; Yüce, Fatma; Çöl, Nazmiye CerenThis study aimed to investigate the relationship between midpalatal suture maturation and maxillary and mandibular first and second molar development in growing patients and to determine whether any observed association persisted after accounting for chronological age and sex. Cone-beam computed tomography records of 90 growing patients were retro spectively evaluated. Midpalatal suture maturation was classified using the Angelieri method, and molar development was assessed according to the Nolla classification. Associations were evaluated using Spearman rank correlation analysis in the total sample and separately by sex. Ordinal logistic regression was used as the main regression analysis, and binary logistic regression was additionally performed after grouping the stages as non-advanced and advanced maturation. First molars showed almost complete root development from Angelieri Stage B onward, whereas second molars demonstrated a more gradual increase across advancing sutural maturation stages. Mean Nolla values for second molars increased from approximately 6.4–8.0 in Stages A–B to 9.0 or above in Stages D–E. Significant positive correlations were found between midpalatal suture maturation and all evaluated molars, with the strongest correlation observed for the mandibular second molar, followed by the maxillary second molar. In regression analyses, molar development was associated with sutural maturation in unadjusted models; however, after adjustment for chronological age and sex, none of the molar-related associations remained statistically significant following correction for multiple comparisons. Chronological age remained the dominant factor associated with MPS maturation. Molar development, particularly second molar maturation, may reflect the overall maturational trajectory but showed limited independent predictive value and should not be used alone to estimate the morphological status of the midpalatal suture.Öğe Türü:Öğe, Tooth wear severity and temporomandibular joint degenerative findings on cone-beam computed tomography: A cross-sectional study in adults(Wiley, 2026) Altundal, Gizem; Özdemir, Ceyda Deniz; Zorlu, Ece; Yüce, Fatma; Biren, SibelBackground: Tooth wear is commonly assumed to be a marker of parafunctional load and, by extension, of mechanical stress on the temporomandibular joint (TMJ); whether greater wear accompanies greater degeneration in the same joint has rarely been tested. Objective: To determine whether tooth wear severity is associated with ipsilateral CBCT- detected TMJ degeneration in adults with TMD symptoms. Methods: In this cross- sectional study, 80 adults (160 joints; mean age 27 years; 80% female) underwent standardised tooth- wear scoring (Smith and Knight index, 0–4) and blinded CBCT assessment of osteophyte, erosion, subchondral cyst, flat tening and sclerosis, categorised as no, indeterminate or definite osteoarthritis by established imaging criteria. Side- wear was modelled against same- side findings with generalised estimating equations for paired- joint clustering, and patient- level wear by logistic regression, adjusted for age, sex and Angle class with Bonferroni correction across the prespecified primary outcomes. Results: Osseous findings were prevalent (flattening 86.9%, osteophyte 50.0%, erosion ≥ Grade 1 66.2%) and 75.6% of joints met criteria for definite osteoarthritis. Tooth wear showed no association with any joint outcome: adjusted odds ratios per +5 side- wear clustered around unity for osteophyte (1.01, 95% CI 0.79–1.27), subchondral cyst (1.00, 0.76–1.32) and definite osteoarthritis (0.95, 0.71–1.27), none reaching Bonferroni- corrected or nominal significance. Patient- level analyses were similarly null. Wear increased with age (Spearman ρ = 0.65, p < 0.001). Conclusion: Tooth wear severity was not associated with ipsilateral TMJ degeneration. The assumed positive link with TMJ osseous change was not observed; wear alone does not appear to be a reliable clinical proxy for joint loading.Öğe Türü:Öğe, Comparative effects of three myofascial release techniques on pectoralis minor tightness: A randomized controlled trial(Elsevier, 2026) Aksan Sadıkoğlu, Büşra; Akgüller, Tuğba; Analay Akbaba, YıldızBackground: Pectoralis minor (PM) tightness may cause scapular anterior tilting, leading to rounded shoulder posture (RSP). Techniques such as stretching, manual or self-myofascial release (SMR), and instrument-assisted soft tissue mobilization (IASTM) are used to restore PM length. Purpose: The aim of this study was to compare the acute effects of three different myofascial release techniques in asymptomatic individuals with PM tightness. Methods: Thirty-nine subjects were randomized into three groups: the IASTM group, the manual myofascial release (MMR) group, and the SMR group. The PMI index was used to assess PM length and was the primary outcome measure. RSP, glenohumeral (GH) total arc motion, skin temperature and Pressure pain threshold (PPT) were secondary outcome measures. Results: Significant within-group improvements in PMI were observed following IASTM (p = 0.007) and MMR (p = 0.042), whereas no significant change occurred following SMR (p > 0.05). RSP improved significantly in the MMR (p = 0.003) and SMR (p = 0.006) groups. GH total arc motion increased significantly following IASTM and MMR (both p = 0.010). PPT and skin temperature did not change significantly within any group (all p > 0.05). Although post-intervention differences were observed for PMI, GH total arc motion, and skin temperature, change-score comparisons revealed no significant between-group differences for either the primary or secondary outcomes (all p > 0.05). Conclusion: IASTM, MMR, and SMR produced comparable immediate effects in individuals with PM tightness. These findings suggest that all three interventions may be considered viable options for the immediate man agement of PM tightness.Öğe Türü:Öğe, The relationship between clinical leadership perceptions and teamwork attitudes: An analysis in the context of emergency healthcare services(Acıbadem Mehmet Ali Aydınlar University, 2026) Kavraz Güney, Yaren; Karabulut, Ahu TuğbaPurpose: Clinical leadership is closely associated with teamwork effectiveness in emergency healthcare settings, where rapid decision-making, coordination, and communication are essential. The purpose of this study was to examine the relationship between clinical leadership perceptions and teamwork attitudes among healthcare professionals working in emergency healthcare services. Teamwork attitudes are examined within the framework of communication, mutual support, leadership, team structure and situation monitoring dimensions in this study. Methods: This study was conducted with a quantitative research design on 290 healthcare professionals who work in private hospitals and ambulance services in Istanbul. Data were collected using a structured questionnaire consisting of three sections: demographic and work-related questions, the Clinical Leadership Scale, and the Teamwork Attitudes Questionnaire. Frequency distribution analysis, confirmatory factor analysis, correlation, and regression analyses were performed on the collected data by using SPSS and AMOS. Results: Higher perceptions of clinical leadership were positively and significantly associated with all dimensions of teamwork attitudes, including communication, situation monitoring, mutual support, leadership, and team structure. Furthermore, the analysis revealed significant and positive results among these variables. Conclusions: The findings suggest that clinical leadership is closely associated with positive teamwork attitudes in emergency healthcare services. Strengthening clinical leadership competencies and promoting a teamwork-oriented culture may contribute to improving teamwork processes, healthcare quality, and patient safety.
