Browsing by Author "Ghoneima, Ahmed"
Now showing items 1-20 of 24
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3D superimposition of dental casts based on coloured landmark detection using combined computer vision and 3D computer graphics techniques
Ghoneima, Ahmed (2019)Abstract: The aim of this study was to evaluate the validity and reliability of three-dimensional (3D) landmark-based palatal superimposition of digital dentalmodels using the customized software Ortho Mechanics Sequential ... -
Accuracy and reliability of landmark- based, surface- based and voxel- based 3D cone- beam computed tomography superimposition methods
Ghoneima, Ahmed (2017)Objectives: To evaluate and compare the accuracy and reliability of 3 different methods of three- dimensional cone- beam computed tomography scans (3D CBCTs) superimpositions: landmark- based, surface- based and voxel- ... -
Accuracy of three-dimensional dental resin models created by fused deposition modeling, stereolithography, and Polyjet prototype technologies: A comparative study
Ghoneima, Ahmed (2018)Objectives: The aim of this study was to assess the dimensional accuracy of fused deposition modeling (FDM)–, Polyjet-, and stereolithography (SLA)–produced models by comparing them to traditional plaster casts. Materials ... -
Computer aided finite element model for biomechanical analysis of orthodontic aligners
Ghoneima, Ahmed; Abuzayda, Moosa (2022-08)Objectives: To design a finite element (FE) model that might facilitate understanding of the complex mechanical behaviour of orthodontic aligners. The designed model was validated by comparing the generated forces — during ... -
The C‑shaped root canal systems in mandibular second molars in an Emirati population
Khawaja, Summayah; Chaudhry, Jahanzeb; Hassan Khamis, Amar; El Abed, Rashid; Ghoneima, Ahmed; Jamal, Mohamed (2021)Abstract: Our study aimed to describe the root and canal morphology of mandibular second molars in Emirati population and to study the prevalence and types of morphological change in C-shaped canal confguration along the ... -
Development and Comparison of Conventional and 3D-Printed Laboratory Models of Maxillary Defects
Alanezi, Ahmad; Aljanahi, May; Moharamzadeh, Keyvan; Ghoneima, Ahmed; Tawfik, Abdel Rahman; Hassan Khamis, Amar; Abuzayda, Moosa (2023)Background: Recording accurate impressions from maxillary defects is a critical and challenging stage in the prosthetic rehabilitation of patients following maxillectomy surgery. The aim of this study was to develop and ... -
Does maxillary sinus proximity affect molar root resorption during distalization using Invisalign? a CBCT study
Ghoneima, Ahmed (2023)Background: This study aimed to assess the correlation between maxillary sinus proximity to root apices of maxillary molars and root resorption during molar distalization using clear aligner therapy (CAT). Materials ... -
The effect of cigarette smoke on the shear bond strength of metallic and ceramic orthodontic brackets: An in vitro study
Omar, Haidi; Ghoneima, Ahmed (2019)Objective: The bond strength between enamel and the bracket base is influenced by exposure to the oral environment. The aim of the current study was to determine the effect of cigarette smoke on the shear bond strength ... -
Enamel Hypomineralization in Children With Clefts and the Relationship to Treatment: A Cross-sectional Retrospective Study
Ghoneima, Ahmed (2018)Objective: The aim of this study was to determine whether molar incisor hypomineralization (MIH) is greater in patients with cleft lip and palate (CLP) who underwent primary alveolar grafting (PAG) as compared with CLP ... -
Evaluation of two-dimensional lateral cephalogram and three-dimensional cone beam computed tomography superimpositions: a comparative study
Ghoneima, Ahmed (2019-04)Abstract: Superimposition of radiographic imaging is used to evaluate patient growth and the effects of surgical and/or orthodontic treatment. The purpose of this study was to compare the outcomes of superimposition between ... -
Improving the accuracy of publicly available search engines in recognizing and classifying dental visual assets using convolutional neural networks
Ghoneima, Ahmed (2020)Aim: To assess the accuracy of DigiBrain4, Inc (DB4) Dental Classifier and DB4 Smart Search Engine* in recognizing, categorizing, and classifying dental visual assets as compared with Google Search Engine, one of the ... -
Management of mandibular incisors crowding by using passive lower lingual holding arch: a case series and literature review
Habib, Ahlam; Ghoneima, Ahmed; Diar-Bakirly, Samira (2023)Abstract: Mandibular incisor crowding is a frequently encountered problem in daily orthodontic treatment. Success of the treatment greatly depends on the orthodontist’s ability to manage the factors contributing to the ... -
Physiochemical and mechanical characterisation of orthodontic 3D printed aligner material made of shape memory polymers (4D aligner material)
Ghoneima, Ahmed; Elshazly, Tarek (2023)Abstract: Objectives: To conduct a physiochemical and mechanical material analysis on 3D printed shape-memory aligners in comparison to thermoformed aligners. Materials and methods: Four materials were examined, ... -
Precision of the virtual occlusal record
Ghoneima, Ahmed (2019)Objectives: To evaluate the precision of the virtual occlusal record using the Carestream CS3600 Intraoral Scanner (Carestream Dental, Atlanta, Ga). Materials and Methods: A total of 20 participants were recruited ... -
Predictors of orthodontic residency performance: An assessment of scholastic and demographic selection parameters
Ghoneima, Ahmed (2019)Objective: To evaluate the association between resident selection criteria, including Graduate Record Examination (GRE) scores, and student performance in an orthodontic residency program. Materials and Methods: This ... -
Preliminary Performance of the Advanced Dental Admission Test (ADAT): Association Between ADAT Scores and Other Variables for Applicants to Residency Programs at a U.S. Dental School
Ghoneima, Ahmed (2018)Abstract: Historically, dental residency programs have used numerical assessment criteria to evaluate and identify qualified candidates for admission. Recent elimination of such assessment tools has undermined many ... -
The Relationship Between Hard Tissue and Soft Tissue Dimensions of the Nose in Children: A 3D Cone Beam Computed Tomography Study
Ghoneima, Ahmed (2018)Abstract: This study using three-dimensional cone beam computed tomography (CBCT) images of children determined relationships between nasal skeletal and soft tissue measurements and assessed the association with sex, age, ... -
Retrospective CBCT analysis of airway volume changes after bone-borne vs tooth-borne rapid maxillary expansion
Ghoneima, Ahmed (2019)Objectives: To compare changes in upper airway volume after maxillary expansion with bone and tooth-borne appliances in adolescents and to evaluate the dentoskeletal effects of each expansion modality. Materials and ... -
Three dimensional evaluation of the holographic projection in digital dental model superimposition using HoloLens device
Ghoneima, Ahmed (2019)Objective: To assess validity and reliability of palatal superimposition of holograms of 3D digital dental models using a customized software, (Ortho Mechanics Sequential Analyzer OMSA), installed on Microsoft HoloLens ... -
Three-dimensional computed tomography analysis of airway volume in growing class II patients treated with Frankel II appliance
Ahmed, Marwa Jameel; Diar-Bakirly, Samira; Hassan, Amar; Ghoneima, Ahmed (2024)Objective: The purpose of this retrospective study was to assess the airway volume changes associated with the use of Frankel appliance (FR II) in Class II malocclusion patients using three-dimensional cone beam computed ...