52 results match your criteria: "Ankara University Faculty of Dentistry[Affiliation]"

Article Synopsis
  • This study aimed to compare the effects of two orthodontic appliances, the Twin block and Herbst, on the structure of the mandible using fractal dimension analysis (FDA) of panoramic radiographs in patients with skeletal Class II malocclusion.
  • Fifty subjects treated with each appliance and a control group were analyzed, focusing on specific regions in the mandible, with significant changes in the condylar region and corpus observed across both treatment groups.
  • Results indicated that both appliances caused remodeling of the mandibular trabecular structure, with the Twin block showing greater variances in the condyle compared to the Herbst appliance, thus rejecting the null hypothesis of no effect.
View Article and Find Full Text PDF

Objectives: The purpose of this study was to propose a machine learning model and assess its ability to classify temporomandibular joint (TMJ) disc displacements on MR T1-weighted and proton density-weighted images.

Methods: This retrospective cohort study included 180 TMJs from 90 patients with TMJ signs and symptoms. A radiomics platform was used to extract imaging features of disc displacements.

View Article and Find Full Text PDF

As one of the global concerns, antimicrobial resistance crisis increases the clinical importance of Enterococcus species. Enterococcus faecalis (E. faecalis) specifically penetrates the dentinal tubules and remains prevalent even after endodontic treatment.

View Article and Find Full Text PDF

Objective: To retrospectively evaluate the effects of single mandibular advancement (MA) and two-jaw surgery (2J-S) on the pharyngeal airway space (PAS) and hyoid position for the correction of skeletal Class II malocclusion.

Methods: Eleven adult patients who underwent only MA surgery and twelve adult patients who underwent Le Fort I maxillary impaction-MA surgery (2-JS) were included in the retrospective study. A total of 46 cephalometric recordings obtained before (T1) and after treatment (T2) were examined.

View Article and Find Full Text PDF

Background: Non-small cell lung cancer (NSCLC) patients without lymph node (LN) metastases (pN0) may exhibit different survival rates, even when their T stage is similar. This divergence could be attributed to the current pathology practice, wherein LNs are examined solely in two-dimensional (2D). Unfortunately, adhering to the protocols of 2D pathological examination does not ensure the exhaustive sampling of all excised LNs, thereby leaving room for undetected metastatic foci in the unexplored depths of tissues.

View Article and Find Full Text PDF

Background: Mineralization-promoting peptide-3 (MPP3) is a new biomimetic remineralization agent.

Aim: To assess the remineralization efficiency of MPP3, either alone or in combination with fluoride gel.

Design: The samples were divided into four groups: control, 1.

View Article and Find Full Text PDF

Objective: The aim of this study was to evaluate orthodontic treatment method preferences among dentistry students, dentists and orthodontic residents taking into account factors such as esthetics, advantage/disadvantage, cost and treatment duration.

Methods: The study was carried out on three groups: dentistry students (n=318), dentists (n=110) and orthodontic residents (n=98), and a 17-question survey was applied. Questionnaire forms included informational photos of conventional metal brackets (CMB), esthetic ceramic brackets (ECB), self-ligating brackets (SLB), clear aligner (CA), and lingual brackets (LB).

View Article and Find Full Text PDF

Oral biofilm formation is the main reason for both caries progression and soft tissue diseases. Preventing the formation and promotion of biofilm has been known as the first attempt to prevent the development of caries and soft tissue problems in the oral cavity. The present study aimed to assess the effect of ozone and its combined use with chlorhexidine (CHX) and fluoride on the complex biofilm formation of pediatric patients under in situ conditions.

View Article and Find Full Text PDF

Assessment of Canalis Sinuosus located in maxillary anterior region by using cone beam computed tomography: a retrospective study.

BMC Med Imaging

March 2023

Ankara University Faculty of Dentistry, Department of Dentomaxillofacial Radiology, Ankara University, Ankara, Turkey.

Background: The aim of the study is to determine the distribution, location, diameter, and distance measurements of Canalis Sinusosus (CS) in relation with age and sex.

Methods: 300 Cone-Beam Computed Tomography (CBCT) images were evaluated. The distance between CS and nasal cavity floor (NCF), buccal cortical bone margin (BCM), alveolar ridge (AR), respectively.

View Article and Find Full Text PDF
Article Synopsis
  • * It involved 1,177 participants from Islam, Christianity, Hinduism, Buddhism, and Atheism, using tools like a questionnaire and advanced statistical models for data analysis.
  • * Results indicated a significant relationship between religious beliefs and attitudes toward surrogacy, with the regression model documenting a meaningful impact of religion on participants' views (p < 0.05).
View Article and Find Full Text PDF

Objective: Bruxism is defined as a parafunctional activity. It could be in diurnal or nocturnal form, based on the time it occurs. The purpose of the study compares the effectiveness of occlusal splint treatments in children with nocturnal bruxism using the BiteStrip®.

View Article and Find Full Text PDF

Purpose: The aim of this study was to evaluate the mechanical behavior of an implant-supported crown made using computer-aided design and computer-aided manufacturing (CAD-CAM) resin composite (RC) blocks in the posterior region.

Material And Methods: Four commercially available CAD-CAM RC blocks were used in this study: Cerasmart 300 (CS300; GC, Tokyo, Japan), Katana Avencia P Block (KAP; Kuraray Noritake Dental, Niigata, Japan); KZR HR3 Gamma Theta (HR3; Yamakin, Osaka, Japan), and Estelite P block (ESP; Tokuyama Dental, Tokyo, Japan). Katana Zirconia STML (ST; Kuraray Noritake Dental) was used as the control group.

View Article and Find Full Text PDF

Artificial intelligence in dentomaxillofacial radiology.

World J Radiol

March 2022

Department of Dentomaxillofacial Radiology, Ankara University Faculty of Dentistry, Ankara 06500, Turkey.

Artificial intelligence (AI) has the potential to revolutionize healthcare and dentistry. Recently, there has been much interest in the development of AI applications. Dentomaxillofacial radiology (DMFR) is within the scope of these applications due to its compatibility with image processing methods.

View Article and Find Full Text PDF

Radiomics is a new image processing technology developed in recent years. In this study, CT radiomic features are evaluated to differentiate pulmonary hamartomas (PHs) from pulmonary carcinoid tumors (PCTs). A total of 138 patients (78 PCTs and 60 PHs) were evaluated.

View Article and Find Full Text PDF

Background: This study aimed to analyze the effect of the Fluorescence Aided Caries Excavation (FACE) and the remaining dentin thickness on the temperature changes of the pulp chamber.

Material And Methods: Freshly extracted deciduous molars and a pulpal microcirculation model were used in the study. The sample size was calculated according to power analyses (power at 90%) based on previous studies.

View Article and Find Full Text PDF

The present preliminary study aims to evaluate the possible positive outcomes of ultrasonography-guided sialolithotomies and duct stricture dilations utilizing stone retrieval baskets and guide wires. A total of 6 cases in an ongoing study (4 cases of sialolithiasis and 2 cases of duct strictures with intraluminal adhesion) were analyzed. All sialoliths were <5 mm in diameter.

View Article and Find Full Text PDF

The elimination of endodontic biofilms and the maintenance of a leak-proof canal filling are key aspects of successful root canal treatment. Several materials have been introduced to treat endodontic disease, although treatment success is limited by the features of the biomaterials used. Silver nanoparticles (AgNPs) have been increasingly considered in dental applications, especially endodontics, due to their high antimicrobial activity.

View Article and Find Full Text PDF

Purpose: This study assessed radiopacity of resin-based computer-aided-design/computer-aided-manufacturing (CAD/CAM) materials by areal grayscale pixel value measurement.

Methods: Radiopacities of six resin-based CAD/CAM block materials and resin composite were evaluated and compared to that of enamel and dentin. Specimens of 1-mm thickness were placed on photostimulable phosphor plate and irradiated with digital x-ray unit.

View Article and Find Full Text PDF

Introduction: Radiomics methods are used to analyze various medical images, including computed tomography (CT), magnetic resonance, and positron emission tomography to provide information regarding the diagnosis, patient outcome, tumor phenotype, and the gene-protein signatures of various diseases. In low-risk group, complete surgical resection is typically sufficient, whereas in high-risk thymoma, adjuvant therapy is usually required. Therefore, it is important to distinguish between both.

View Article and Find Full Text PDF

Donor- and recipient-site morbidity of vascularized fibular and iliac flaps for mandibular reconstruction: A systematic review and meta-analysis.

J Plast Reconstr Aesthet Surg

July 2021

OMFS IMPATH research group, Department of Imaging & Pathology, Faculty of Medicine, KU Leuven and Department of Oral and Maxillofacial Surgery, University Hospitals Leuven, Leuven (3000), Belgium; Department of Dental Medicine, Karolinska Institutet, Stockholm, Sweden.

The aim of this article is to evaluate the early and late morbidities of the donor- and recipient-site in patients undergoing mandibular reconstruction using either vascularized fibular flap (VFF) or vascularized iliac flap (VIF). Electronic databases, including PubMed, Web of Science, Cochrane Central and Embase, were explored for literature published until October 2020. A total of twenty-four articles reporting complications following mandibular reconstruction surgery with follow-up periods ranging from six to 63 months were selected based on the exclusion criteria.

View Article and Find Full Text PDF

Management of a partially edentulous patient with idiopathic root resorption by using digital and conventional implant planning technologies.

J Prosthet Dent

January 2022

Senior Lecturer, Section for Digital Implant- and Reconstructive Dentistry [DIRecD], Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine, University of Bern, Bern, Switzerland. Electronic address:

This clinical report describes the rehabilitation of the maxillary arch of a partially edentulous patient with idiopathic root resorption, limited interarch distance, and a high smile line. Four implants were placed to provide a screw-retained fixed partial denture. The esthetic and functional challenges of a high smile line and limited interarch distance were addressed by using a combination of conventional and digital implant treatment technologies.

View Article and Find Full Text PDF

Effects of magnetic resonance imaging on the microleakage of five restorative materials: An in vitro study.

Oral Surg Oral Med Oral Pathol Oral Radiol

August 2021

Professor, Head, Dentomaxillofacial Radiology Department, Ankara University Faculty of Dentistry, Ankara, Turkey. Electronic address:

Objective: The objective of this study was to assess the effects of 3 T magnetic resonance imaging (MRI) on the microleakage of 5 restorative materials.

Methods: In total, 100 maxillary molars were randomly assigned to 5 groups (n = 20) for restoration with 5 different materials: amalgam, light-cured glass-ionomer cement, feldspathic porcelain fused to metal, pressed lithium disilicate glass ceramic, and composite resin. In each group, 10 specimens were subjected to MRI, and 10 specimens served as controls with no MRI exposure.

View Article and Find Full Text PDF

Evaluation of long-term hard tissue relapse following surgical-orthodontic treatment in skeletal class II patients: A systematic review and meta-analysis.

Int J Oral Maxillofac Surg

April 2021

OMFS IMPATH Research Group, Department of Imaging and Pathology, Faculty of Medicine, KU Leuven and Department of Oral and Maxillofacial Surgery, University Hospitals Leuven, Leuven, Belgium; Department of Dental Medicine, Karolinska Institutet, Stockholm, Sweden.

This systematic review and meta-analysis was performed to evaluate the long-term hard tissue stability and relapse factors following surgical-orthodontic treatment in skeletal class II patients. A literature search was conducted using Embase, Cochrane Central, Web of Science, and PubMed, yielding 3184 articles published up to January 2019. Risk of bias was assessed following the Cochrane handbook.

View Article and Find Full Text PDF

Keywords: The aim of this study was to evaluate the effectiveness of denture frame analysis (DFA) in individuals with anterior open bite who had completed pubertal peak growth (post-peak).

Methods: This retrospective study was conducted using the cephalometric radiographs and hand-wrist X-rays of 50 individuals with open bite (mean age: 17.33±3 years; 35 female, 15 male) and a control group of 50 individuals without open bite (mean age: 17.

View Article and Find Full Text PDF