Dentistry Commons^™

The Impact Of Gestational Diabetes Mellitus And Maternal Oral Microbiome: A Scoping Review, Jaclyn P. Langan

Honors Undergraduate Theses

Background: Gestational diabetes mellitus (GDM) is a common pregnancy-related metabolic disorder associated with adverse maternal and fetal outcomes. Recent research has highlighted the potential role of the oral microbiome in the pathophysiology of various systemic conditions, including diabetes mellitus. However, the impact of GDM on the maternal oral microbiome remains relatively understudied. Understanding alterations in the oral microbiome during pregnancy complicated by GDM could provide valuable insights into the mechanistic links between systemic metabolic disorders and oral health.

Objective: The objective of this scoping review was to comprehensively examine the existing literature on the relationship between GDM and maternal oral …

Bioarchaeological Study Of Patterns Of Juvenile Oral Health In Ancient Peru, Nidhi S. Patel

Honors Undergraduate Theses

Dental caries have been identified for several centuries as a common pathology within individuals’ mouths, more specifically in the posterior teeth surfaces (Jesudass, Prabhu, Rajajee, & Sudheer, 2014). Although there have been modern procedures and preventative methods developed to help treat dental caries, in ancient times this was not always the case. The persistence of anterior teeth dental caries in juveniles is a unique pathology observed in Túcume that has not been studied yet. Through the analysis of skeletal samples, this research aims to study the specific case of the formation of anterior deciduous dental caries in juveniles located at …

Evaluation Of Soft And Hard Tissue Changes Around Guided Immediate Implants In The Esthetic Area With Immediate Temporization: A Prospective Clinical And Radiological Pilot Study, Pierre Lahoud, Elie Bou Assi, Abdallah Menhall, Lara Nasr, Christian Makary

International Arab Journal of Dentistry

Objectives: This study aimed to assess soft and hard tissue changes occurring 6 and 12 months after guided implant placement into extraction sockets and immediate temporization in the esthetic zone.

Methods: Eight patients requiring single immediate implant placement in the anterior mandible or maxilla were included in this study. A traumatic extractions were performed using ultrasonic instruments and implants were placed into extraction sockets following digitally guided surgery. Gap between implants and buccal bone plate was filled with allogeneic bone substitutes. Implants were immediately temporized with pre-prepared PMMA crowns. Cone Beam Computed Tomography and digital impressions were done …

Comparison Of The Failure Between Conventional Pmma And Milled Pmma Full Arch Maxillary Interim Prosthesis Fixed On 4 Implants: An In Vitro Study, Tatiana Bou Sakr, Hani Tohme, Natalia Bou Sakr, Victor Ghoubril, Carole Abi Ghosn Yared

International Arab Journal of Dentistry

Objectives: The principal objective of this study was to compare the failure load between the conventional heat polymerized PMMA and the CAD/CAM milled PMMA interim full arch implant prostheses. The secondary aim was to evaluate the success of the distal extension of the temporary PMMA prosthesis.

Methods: A metallic edentulous upper arch model with 4 Straumann screw-retained abutment digital analogs was used to create 15 specimens for each of the 2 groups: Conventional and milled. Failure load was measured on 5 different regions on the left and right side of each specimen with the YLE universal testing machine: …

Testing The Strength Of Thin Feather-Edge Monolithic Multilayered Zirconia Crowns: A Pilot Study With A Novel Acoustic Test, Estelle Saab, Camille Haddad, Maher Abboud, Maha Daou, Amine Zoghbi

International Arab Journal of Dentistry

Introduction: Limited research has explored the mechanical characteristics of recently introduced multilayered monolithic zirconia (MZC) crowns with feather-edge margins design. Moreover, most of the conventional techniques for evaluating the mechanical behavior of brittle dental ceramics rely on destructive tests, making it impossible to precisely evaluate real strength values due to premature crack initiation detection failure.

Objectives: The main objective of the study was to assess the load capacity of translucent multilayered monolithic zirconia crowns with feather-edge margin thicknesses of 0.4 mm and 0.5 mm. Additionally, the research introduced a novel non-destructive acoustic emission testing (AET) technique in the …

The Role Of Neutrophil-To-Lymphocyte Ratio (Nlr), Lymphocyte-To-Monocyte Ratio (Lmr), And Platelet-To-Lymphocyte Ratio (Plr) In Oral Cancer And Acute Dental Infections, Sasti Priya Govindasamy Sukumar, Ravikumar Pethagounder Thangavelu, Karthik Rajaram Mohan, Ramachandra Reddy Gowda Venkatesha, Kumar Appusamy

International Arab Journal of Dentistry

Objectives: The present study was a cross-sectional observational study, which was carried out on patients reported to the Department of Oral Medicine and Radiology. This study aims to evaluate the hemogram parameters NLR, LMR, and PLR among 90 Patients.

Methods: Patients were divided into 3 groups: Group A consists of 30 patients with histopathological confirmed oral cancer. Group B consists of 30 patients who presenting acute dental infections. Group C consists of 30 patients clinically healthy subjects. The hemogram parameters NLR, LMR and PLR were compared in the 3 groups and we studied their correlation to the clinical …

Investigation Of Fracture Resistance With Different Diameters Of Polyetherketoneketone Post And Core Materials: A Pilot Study, Maya Kabbara, Ryan Harouny, Habib Rahme

International Arab Journal of Dentistry

Objectives: The primary objective of this study is to investigate the resistance to fracture of Polyetherketoneketones PEKK, used as post and core by fabrication in different diameters in the canal, and comparing the test results for each group.

Methods: Thirty extracted mandibular premolars were selected, endodontically treated and prepared to receive the post and cores milled from polyetherketoneketone disk. The specimens were randomly divided into five groups (n = 6) respectively: group 1 received pekk post with diameter = 0.70 mm, group 2 received pekk post with diameter = 0.90 mm, group 3 received pekk post with diameter …

Digital Assessment Of Soft And Hard Tissue Alterations After Anterior Maxillary Tooth Extraction, Robin Jalkh, Stephanie Mrad, Emile Chrabieh, Joe Bassil

International Arab Journal of Dentistry

Objectives: This study aimed to assess dimensional alterations in soft and hard tissues 12 weeks post-extraction using novel computerized methods. Secondary objectives included exploring potential correlations between soft tissue changes and underlying bone variations, as well as investigating relationships between soft and hard tissue alterations and various contributing factors.

Methods: For all patients, preoperative and postoperative CBCT scans and intra-oral scans were obtained. Soft and hard tissue dimensions before extraction and at 12 weeks post-extraction were measured using 3D-slicer software. Both DICOM and STL files were superimposed, and measurements were taken at 2mm and 4mm from the facial …

Bone-To-Implant Surface Contact As A Criterion For Immediate Implant Placement With Simultaneous Sinus Augmentation In The Upper Molars' Interradicular Bone: A Radiological Cbct Study, Nawal Baba, Nabil Ghosn, Abdel Rahman Kassir, Lara Nasr, Gabriel Menassa, Carole Chakar

International Arab Journal of Dentistry

Objectives: The aim of this study is to determine which type of vertical relationship (between molar apices and the sinus floor) is correlated with the most favorable bone to implant contact (BIC).

Methods: The CBCT database of the Faculty of Dental Medicine was used for datasets. For each dataset, a prosthetically-driven virtual implant placement was placed in the remaining interradicular bone. Potential BIC was measured using two different implant macrogeometries (straight and tapered).

Results: The study included 20 maxillary molars with divergent root anatomy: 90% of the molars had a type II vertical relationship with the sinus …

Ai And Radiologist Assessments On The Prevalence Of Tmj Osteoarthritis Using Radiographic Images: A Comparative Study, Louloua Mourad, Nayer Abo El Saad, Yehia El Mahallawy

International Arab Journal of Dentistry

Objectives: This study aims to address the significant discomfort and functional impairment associated with temporomandibular joint osteoarthritis (TMJ OA), which negatively impacts the quality of life. It emphasizes the importance of prompt diagnosis and explores the potential of an Artificial Intelligence (AI) system to enhance TMJ OA diagnosis.

Methods: The prevalence of TMJ OA was evaluated using 3 diagnostic tools: the gold standard, the AI model, and an examiner. In total, 132 patients who performed 190 cone-beam computed tomography (CBCT) images were included.

Results: The prevalence of TMJ OA was 62.11% using the gold standard, 63.68% using …

Assessment And Quantification Of The Microbial Flora In The Output Water Of Two Types Of Dental Chairs: A Comparative Study, Khalil Kharma, Louis Hardan, Cynthia Kassis, Rim Bourgi, Regina Geitani, May Mallah, Elie Maalouf, Carina Mehanna Zogheib

International Arab Journal of Dentistry

Objectives: Dental Unit Waterlines (DUWL) have shown to be a perfect host for different pathogenic microorganisms. The purpose of this study was to analyze and compare the level of bacterial contamination in the output water of 2 types of DUWL.

Methods: Dental unit water samples from the air/water syringe of the A-dec (A-dec™ Performer 200, Newberg, USA) DUWL type and KaVo (ESTETICA™ E30/E70/E80 Vision, Kavo, Biberach, Germany) type were collected and analyzed for total aerobic flora, Pseudomonas aeruginosa, faecal coliforms, total coliforms, faecal streptococci and sulfite-reducing anaerobic flora.

Results: The bacteriological analysis of water samples shows the …

Comparative Evaluation Of Surface Changes And Bond Strength Of Microabrasion-Bleached Enamel Before And After Remineralization With Nano-Hydroxyapatite Paste: An In Vitro Study, Ridhi Dube, Anita Sanap Tandale, Twinkle Kishore Talreja, Karishma Krishnakumar, Prajakta Kokate, Vaishnavi Jemini Kasat

International Arab Journal of Dentistry

Objectives: Comparative evaluation of surface changes and bond strength of Microabrasion Bleached enamel before and after Remineralization with Nano-hydroxyapatite paste, an In vitro study.

Methods: Enamel samples were divided into - Group I - Conventional bleaching (HB), Group II - Conventional bleaching with remineralization (HB+N-Hp), Group III - Microabrasion-assisted bleaching(M+HB), and Group IV - Microabrasion-assisted bleaching with remineralization(M+HB+NHp). Surface roughness was measured using a profilometer. Samples were stored in artificial saliva for two weeks, then bonded with nanofilled composite resin and subjected to shear bond strength (SBS) analysis.

Results: Group IV (M+HB+N-Hp) showed higher surface roughness than …

Aesthetic Rehabilitation Of A Complex Crown-Root Fracture By Fragment Reattachment With A Fiber-Reinforced Post: A Case Report, Sarra Saidi, Meriem Fejjeri, Mahdi Tlili, Sabra Jaafoura, Nadia Frih

International Arab Journal of Dentistry

Complex crown-root fractures are characterized by the involvement of both crown and root with pulp exposure. They pose aesthetic, functional, and psychological problems for the patient. Furthermore, they can pose technical difficulties for the practitioner. The purpose of this case report is to describe the management of a complex crown-root fracture of the right upper central incisor with subgingival limit by reattaching the tooth fragment with fiber-reinforced post. We considered a coronal elongation (gingivectomy and osteoplasty) to recreate the biological space and to expose the limit of the fracture line to guarantee the quality of the bond.

Diagnosis And Endodontic Treatment Of Odontogenic Cutaneous Sinus Tracts: A Report Of Two Cases, Mayada Jemâa, Marwenne Bouatay, Yesmine Neifar, Mohamed Bassem Khattech

International Arab Journal of Dentistry

Introduction: The odontogenic cutaneous sinus tract (OCST), caused by pulp necrosis, creates connections between pathological spaces and anatomical structures. Extraoral manifestations pose diagnostic challenges leading to inappropriate treatments such as multiple surgery and antibiotic therapies. Effective management requires the treatment of dental pathology through endodontic therapy or extraction. This paper presents two cases of OCST and emphasizes the importance of accurate diagnosis and successful non-surgical endodontic treatment.

Observations: Case report 1: A 23-year-old male patient referred by his dermatologist with a cutaneous sinus tract on his chin that had appeared five years ago. During this period, he reported …

Endocrown, From Preparation To Bonding: Case Report, Amira Yousfi, Rihab Dakhli, Jilani Saafi, Belhassen Harzallah

International Arab Journal of Dentistry

The restoration of endodontically treated teeth is a real challenge, particularly teeth with extensively damaged coronal tissues. The use of post-retained restorations has been discussed because of the potential tooth weakening due to the additional removal of sound dental structures. In fact, long-term prognosis of a devitalized tooth is closely related to the coronal restoration’s quality and the remaining dental structure. With the development of adhesive dentistry and minimally invasive preparation, new approaches have emerged. Among them, the endocrown which is monolithic ceramic bonded restoration, anchored to the internal portion of pulp chamber and cavity margins that have been used …

Pdgfra And B Copositive Fibroblasts Drive Fibrosis In Mouse Salivary Glands Through Tgfβ Signaling, Renae Williams Atkinson

Electronic Theses & Dissertations (2024 - present)

Fibrosis is of significant concern to the medical community as numerous disease processes are characterized by progressive fibrosis leading to organ damage. We begin the process of examining the mechanism of fibrosis to salivary gland hypofunction and briefly consider Sjögren’s Disease (SjD). Method: We employed single-cell RNA sequencing data from a reversible mouse salivary gland injury model and from NOD/ShiLtJ mice, a model of secondary SjD. We performed treatment comparisons with the help of Seurat dotplots and UMAPS. Using differential gene expression analysis and the publicly available R packages: clusterProfiler, WikiPathways and Cytoscape, we identified the processes and pathways …

Fixed Detachable Prosthesis Versus Implant-Supported Overdenture For Rehabilitation Of Edentulous Maxilla Opposing 2-Implant Mandibular Overdenture: A Cross-Over Study Of Chewing Efficiency And Maximum Bite Force, Fatma Mahanna

Mansoura Journal of Dentistry

Objective: This study assessed the chewing efficiency and maximum bite force of maxillary implant-supported bar overdentures, and fixed hybrid prostheses opposed by a mandibular overdenture supported by 2 implants. Materials and methods: Six completely edentulous patients enrolled from a previous study installed with a mandibular overdenture comprising two implants. Four parallel maxillary implants were placed in the canines and second premolars region. Each patient randomly received a bar overdenture (BOD) and a fixed hybrid prosthesis (FHP). Using chewing gum and View Gum software, the chewing efficiency was assessed in terms of variance of hue (VOH). Using an occlusal force meter, …

The Effectiveness Of Dental Pulp Stem Cells-Derived Exosomes For Direct Pulp Capping: In Vitro Study, Dina A. Hammouda, Alaa M. Mansour, Mohammed E. Grawish, Ahmed R. Zaher

Mansoura Journal of Dentistry

Objective: This in vitro investigation's goal was to ascertain how well dental pulp stem cell exosomes (DPSC-exo) modulate endogenous dental pulp stem cells (DPSCs) and direct their navigation toward mineralized tissue regeneration, either alone or in conjunction with mineral trioxide aggregate (MTA). Materials and methods: For this investigation, DPSCs were harvested using rat incisors. To extract exosomes from DPSCs, an ultracentrifugation method was employed. Flow cytometry was used for the characterization of DPSCs-exo, and transmission electron microscopy (TEM) was used to measure their size. DPSCs were incubated in standard culture media and split up into three groups. The first one …

Biocompatibility Evaluation Of Edta And Chitosan Nanoparticles Gel Forms: In Vivo Histopathological Study, Alaa H. Youssef, Doaa A. Labah, Abeer A. Elgendy, Amany E. Badr

Mansoura Journal of Dentistry

Objectives: The purpose of this study was to evaluate and compare biocompatibility of gel form chelating agents (EDTA and chitosan NPS) after implantation of polyethylene tubes in rats. Materials and methods: Twenty albino rats were included in this study. Three horizontal incisions were performed on dorsal surface of each rat to receive three polyethylene tubes as subcutaneous implants; two of them filled with tested materials and one empty tube served as control. After 2 and 4 weeks of subcutaneous implantation, 10 rats were sacrificed and implanted polyethylene tubes with surrounding tissues were dissected with 1 cm safety margin. The specimens …

Evaluation Of Double Crown Attachments Made Of Polyether –Ketoneketone Secondary Crowns Combined To Primary Crowns Of Two Different Materials For 2-Implant Retained Overdentures, Esraa Wefky Shawkat Elsaba, Noha Ahmed Mansour, Heba Nabil Awad, Radwa Mohsen Kamal Emera

Mansoura Journal of Dentistry

Objective: To assess the retention force using a digital forcemeter, the peri-implant soft tissue health, and the periimplant marginal bone loss of two implant-retained mandibular complete overdentures with double crown attachments made of polyetherketone- ketone (PEKK) secondary crowns combined to primary crowns of two different materials Methods Fourteen healthy male patients, ages 55 to 65 on average, who were entirely edentulous • group I: seven patients were given a mandibular overdenture that was held by two im plants and had telescopic attachments for a primary zirconiabased coping and a secondary PEKK-based coping against a maxillay full denture. • Group II: …