Dentistry Commons^™

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: …

Correlation Of Mandibular Advancement Device For Management Of Obstructive Sleep Apnea And Body Mass Index And Oxygen Saturation. Clinical Prospective Study, Hala G. Elzayady, Noha H. El-Shaheed, Aida M. Yousef, Aisha Z. H. Mostafa

Mansoura Journal of Dentistry

Objective: Reduced oxygen saturation (SaO₂ %) is a clinical sign of obstructive sleep apnea (OSA), It is regarded as one of the medical problems. The study's goal was to investigate the connection between oxygen saturation, body mass index (BMI), and using the Mandibular Advancement Device (MAD) to manage people with obstructive sleep apnea.

Materials and Methods: From the outpatient clinic of the Sleep Medicine Unit, Chest Medicine Department, Faculty of Medicine, Mansoura University, twenty patients with obstructive sleep apnea were chosen. A mandibular advancement was utilized to treat obstructive sleep apnea. Using polysomnography, periodic oxygen saturation and body …

The Use Of Expanded Polytetrafluoroethylene Membrane (E-Ptfe) As A Barrier Membrane For Critical Size Defects Following Jaw Cyst Enucleation, Sara Salem, Ayman Ahmed Yaseen, Mohamed Abdel-Monem Tawfik

Mansoura Journal of Dentistry

Purpose: The use of bone graft following cyst enucleation could lead to infection so, this study was conducted to investigate impact of (e-PTFE) membrane alone without bone graft in promoting bone healing compared to the spontaneous bone regeneration after cyst enucleation.

Materials and methods: Sixteen intra-bony cysts in 16 patients (6 males, 10 females) were included. In study group (e-PTFE) barrier membrane was used alone after enucleation while, in control group the conventional technique was used. The follow up Period was 6 and 12 months postoperatively. Clinically, pain, soft tissue healing, and membrane exposure were assessed. Radiographically, CBCT scans were …

Variations In Root Anatomy Of Mandibular Third Molars Using Cone Beam Computed Tomography And Personal Identification: A Cross-Sectional Study Amongst Egyptians, Shimaa M Motawei, Bassant Mowafey, Fatma Ata, Mohammad Osama, Osama A. Shabka

Mansoura Journal of Dentistry

Objective: To assess the root canal anatomy and root morphology of mandibular third molars (MTMs) in the Egyptians using cone beam computed tomography (CBCT). Methods: A total of 338 CBCT scans of mandibular third molars (MTMs) were collected and evaluated regarding the related root(s) number and root canal configuration. Statistical analysis highlighted differences between different categories and their prevalence among genders and sides (significance level was set at p < 0.05). Data were presented as frequency and percentage values and were analyzed using a chisquare test followed by pairwise comparisons utilizing multiple Fisher’s exact tests with Bonferroni correction. The significance level was set at p < 0.05 within all tests. Results: A total of 338 MTMs [186 (55%) from male patients, 152 (45%) from female patients] from 279 patients (151 male and 128 female) were evaluated. The majority (82.84%) of the studied MTMs had two roots. single-, triple-, and quadruple-rooted MTMs were less common than double-rooted MTMs, accounting for 10.1%, 5.33%, and 1.18% of the sample, respectively. Regarding root canal anatomy, Vertucci type I was the most seen morphology (61% of all MTMs roots mostly in distal roots (42.41%), followed by Vertucci type III (13.08%). The chi-square test showed no significant difference between males and females (p=0.36) or between the right side and left sides (p=0.691) regarding the number of roots. Conclusion: Within the limitations of the present study, the findings conclude significant variability in the root and root canal anatomy of mandibular third molars (MTMs) within the Egyptian sub-population.

Osteocalcin As A Gingival Crevicular Fluid Biomarker For Periodontitis Among Egyptian Population Sample- Controlled Clinical Trial, Mohamed Al Bahrawy, Sahar Abdel Rauf, Eman M. Abdulhady

Mansoura Journal of Dentistry

Objectives This clinical trial aimed to evaluate osteocalcin levels in healthy and diseased periodontium and to correlate the changes in its levels with the changes in the clinical and radiographic parameters before and after treatment. Subject & Methods Double blind clinical trial, 40 patients divided into 3 groups; 15 patients diagnosed as periodontitis stage III grade B, 15 patients diagnosed as periodontitis stage III grade C, 10 healthy cases as control. Clinical parameters namely plaque index (PI), gingival index (GI), periodontal pocket depth (PPD), clinical attachment loss (CAL), radiographic examination, beside gingival crevicular fluid (GCF) samples collection for osteocalcin (OC) …

Mechanical And Optical Behavior Of Two Lithium Silicate-Based Glass Ceramics After Aging In Intra-Oral Simulating Condition, Sherief Mowafy, Salwa Abdel Raouf Elnegoly, Hagag Abdelkader Mohammed

Mansoura Journal of Dentistry

Aim This study evaluated the mechanical and optical properties of Zirconia-reinforced lithium disilicate (ZLS) and lithium disilicate (LS) glass ceramics after immersion in artificial saliva solutions with varying pH. Methods A total of 104 samples were fabricated from Vita Suprinity (ZLS) and IPS E.max CAD (LS). Samples were divided into test and control groups, with the test group further divided into neutral (7.2), acidic (5.8), and basic (8.3) pH subgroups. Samples were immersed for 24 hours at 37°C and evaluated for microhardness, fracture toughness, and color stability. Results Significant differences were found in the properties of both materials across the …

A Comparison Between Three Conservative Treatment Modalities For Anterior Disc Displacement Of The Temporomandibular Joint, Mirna A. Anis, Mohamed Shady, Manar Mansour, Ashraf A. Gebreel

Mansoura Journal of Dentistry

Objective: The purpose of this study was to compare the effects of three types of conservative treatment modalities (maxillary anterior repositioning splint, low-level laser therapy and infra-red led on the temporomandibular joint and masticatory muscles) for temporomandibular disorder. Materials and methods: A total of 30 patients diagnosed with anterior disk displacement with Reduction, underwent examination using magnetic resonance imaging. The participants were randomly assigned according to treatment modalities into three groups (n=10): maxillary anterior repositioning splint, low-level laser therapy and infra-red led. Clinical evaluation was performed at the baseline and after a six-month follow-up period utilizing the Helkimo Clinical Dysfunction …

Conventional Vs Compressive Implants For Supporting Immediate Loading Bar-Retained Mandibular Overdenture: A Study Of Peri-Implant Tissue Health And Implant Stability, Mohammed H. Karkash, Khaled M. Zahran, Islam H. Kandil, Ahmad A. Habib

Mansoura Journal of Dentistry

Objective: This study was aimed to compare two implant design concepts used to assist immediately loaded mandibular complete overdenture as regards to the implant stability and peri-implant soft tissue health.

Materials and Methods: Forty-four healthy fully edentate patients were chosen. Patients received conventional complete dentures and randomly divided into; Group I: with four conventional implants. Group II: with four compressive implants. For all patients, implants installed in the inter-foramina areas and were immediately loaded with mandibular complete overdenture containing metal framework housing three clips and retained by implant screwed titanium bar. Implant stability was measured by Periotest^® and the …

The Impact Of Birth Characteristics And Feeding Habits On The Eruption Of Primary Teeth: A Cross-Sectional Study, Mai Mounir Okda, Salwa Adel Hegazy, Rasha Ibrahim Ramadan

Mansoura Journal of Dentistry

Objective To evaluate the effect of birth characteristics e.g. (birth weight) and feeding habits e.g. (feeding type) on the eruption of primary teeth of new-born infants. Subjects and Methods A cross-sectional study was designed to collect data for this study by using an interviewer-administered closed-ended questionnaire on 500 mothers of healthy infants who were in age group within the first week of birth to 24 months. Oral examination of those infants was done to ascertain the condition of eruption of primary teeth in addition to teething signs and symptoms. Result The mean time of the eruption of first deciduous tooth …

Tensile Bond Strength Of Machinable Ceramics Bonded To Dentin Using Pre-Heated Resin Composite, Flowable Composite And Resin Cement: A Laboratory Trial, Reham K. Elnagar, Radwa I. Eltoukhy, Salah H. Mahmoud

Mansoura Journal of Dentistry

Objective: To evaluate tensile bond strength of machinable ceramics bonded to dentin using pre-heated and flowable resin composites compared to self-adhesive resin cement. Materials and methods: Thirty mid-coronal dentin surfaces were assigned into 3 equal groups (n=10) according to luting agent: pre-heated resin composite, flowable composite and self-adhesive resin cement. Zirconia overlays were fabricated and cemented to the dentin surfaces. After storing in water for 24 hours, each tooth was subjected to the tensile test. A one-way ANOVA test was used to tabulate and statistically analyze the retrieved data (P

Improving Dental Students' Knowledge And Confidence In Treating Tobacco Use, Victoria Pierce

DNP Projects

Background: Tobacco use can lead to numerous chronic health conditions. Healthcare professionals in the dental field are in a unique position to broach this issue with patients. Research shows that dental students do not feel equipped to provide tobacco cessation care, citing lack of education on the subject among their top reasons for this.

Purpose: The purpose of this project was to evaluate changes in dental students’ knowledge and confidence related to treating tobacco use after participation in an educational intervention about the 5A’s, behavioral counseling, and first-line prescription medications.

Methods: This quality improvement initiative utilized a quasi-experimental survey design …

Pediatric Dentists’ Considerations Concerning Obesity-Related Education For Parents Of Young Children: Who Should Educate About What, How And When?, Arianne Swanson Dds, Ms, James R. Boynton Dds, Ms, Larry B. Salzmann Dds, Yu-Ju Yang Dds, Marita R. Inglehart Dipl. Psych., Dr. Phil., Dr. Phil. Habil

The Journal of the Michigan Dental Association

This study aimed to explore pediatric dentists' perspectives on obesity-related interventions for parents of young children. A web-based survey was administered to 210 American Academy of Pediatric Dentistry members. Findings revealed that respondents considered it important for various healthcare professionals, especially pediatricians and nurse practitioners, to engage in obesity-related parent education. Strong consensus existed on educating parents about the link between early childhood caries and diet, soft drink and fruit juice consumption, and healthy snacking. The study also found positive attitudes correlated with increased engagement in objective weight determination, data collection, and diet/nutrition counseling.

Ada Report: Ada Board Discusses Membership, Looks Ahead To 2024, Michele Tulak-Gorecki Dds

The Journal of the Michigan Dental Association

The ADA Board of Trustees' annual retreat prioritized board development, emphasizing individual strengths and effective communication. Key topics included the Tripartite Membership Model Pilot, a dental school collaboration strategy, and sponsorship for the National Academies of Medicine Oral Health Project. Updates from ADA leaders highlighted initiatives like the Lessons in a Lunchbox program, ADA app improvements, legislative support for young dentists, and workforce solutions. The report concludes with a call to share the ADA story and promote collaboration.

Pediatric Airway Detection And Treatment

Journal of the Macomb Dental Society

Presentation summary: During her 90-minute lecture, Dr. Kuhta highlighted several key points which helped emphasize the importance of this issue in many of our pediatric patients. Those in attendance learned that sleep disordered breathing may occur on a spectrum and not every patient will have obstructive sleep apnea, or OSA. That said, up to 3% of children may have OSA, and many cases go undiagnosed. OSA in children means a child stops breathing for ten seconds once per hour. This deficiency can result in changes in brain function, which can lead to brain damage. It is also important to note …

True Confession Of An Artificial Intelligence System, Chester Gary Dds, Jd

The New York State Dental Journal

A technology that makes clinical recommendations and gives advice requires practitioners to engage in ethically guided clinical judgment to guard against its weaknesses.

Harnessing The Power Of Ai, Lance Plunkett Jd, Llm

The New York State Dental Journal

Federal government steps in to ensure safe, secure and trustworthy development of artificial intelligence.

Unlocking The Future Of Dentistry: A Summary Of Ai And Augmented Intelligence In Dentistry From Ada's White Paper, Kenneth W. Aschheim Dds

The New York State Dental Journal

Titled "ADA SCDI White Paper No. 1106 for Dentistry", this document discusses how AI and AuI are being integrated into various clinical domains, encompassing areas such as preventive care, caries, and periodontal disease management, dental implants, oral and maxillofacial surgery, endodontics, imaging, orthodontics, and more.

Silver Diamine Fluoride As A Caries Management Option For The Young Child, Giovana Anovazzi Medeiros Dds, Msc, Phd, Chia-En Tsai Dds, Ms, Nita Singh Dds, James R. Boynton Dds, Ms

The Journal of the Michigan Dental Association

Dental caries is among the most-common childhood diseases around the world, and neglected caries can result in pain, infection, and can have a negative cascading impact on a child’s overall well-being. Definitive care of these lesions involves restorative procedures and/or extractions, but these treatment options require some level of child cooperation, which can sometimes be a challenge with very young children.

Silver diamine fluoride (SDF) is a non-invasive treatment intended to arrest the caries process. SDF is a liquid solution that contains a high concentration of silver and fluoride ions and has been used as an alternative agent for treating …

Staying Focused On A Moving Target: Coping With Change, North Shetter Dds

The Journal of the Michigan Dental Association

Amid rapid changes in dentistry, this commentary addresses strategies to manage stress and maintain professional balance. Drawing parallels to Moore's Law in technology, the author emphasizes the need for a balanced life, integrating work, play, love, and worship. The concept, rooted in the Pankey Philosophy, aligns with principles from Stephen Covey's Seven Habits. Core skills, including patient relationships, foundational dental practices, periodontal health, occlusion, and perpetual learning, are deemed essential. The article underscores the importance of personal dental health and advocates for study clubs to share, learn, and mentor, fostering a positive professional environment amid evolving technologies and information overload.

Setting The Foundation For A Lifetime Of Oral Health, Samuel Blanchard Dds, Ms

The Journal of the Michigan Dental Association

In this Children’s Dental Health Month article, the Michigan Academy of Pediatric Dentistry emphasizes the crucial role of relationships and trust in pediatric dentistry. Highlighting the significance of collaborative efforts between dental societies, the commentary discusses the impact of professional connections on patient care. The author shares personal insights on transitioning in their career, underscoring the value of cultivated relationships. The age-1 dental visit is highlighted as a powerful preventive measure to establish rapport and empower parents with oral health knowledge. The article emphasizes the enduring benefits of building connections in promoting lifelong oral health.

Dentistry And The Law: Know The Facts About Noncompete And Liquidated Damages Agreements, Dan Schulte Jd

The Journal of the Michigan Dental Association

Navigating dental employment agreements involves understanding the enforceability of non-compete and liquidated damages provisions. While these aim to protect the employer's business, courts may scrutinize their reasonability. In Michigan, noncompete terms of two years or less are generally deemed reasonable, and the restricted area must align with the patient base. A $15,000 liquidated damages amount per patient might face challenges, as it should relate reasonably to actual damages. Courts may also consider equitable factors and the employer's adherence to the agreement. Both employers and employees benefit from reasonable restrictions, avoiding potential legal disputes.