Dentistry Commons^™

A Comparative In Vitro Study: Cytotoxicity Effect Of Curcumin Vs Biodegradable Nanoparticles/Pva Against Hno97 And Effect Of Curcumin On Cell Cycle Phases, Sara Denewer

Al-Azhar Journal of Dentistry

Purpose: This study evaluated that curcumin and biodegradable nanoparticles with PVA as capping material, in terms of cytotoxicity followed by cell cycle analysis against the HNO97 cell line (tongue carcinoma). Material and methods: 5mg of pure curcumin, 7.5 mg of Nano curcumin formulation, and SRB for IC50 done on five concentrations. A flow cytometry test was carried on to evaluate the effect of curcumin on the HNO97 cell line. Results: This study postulated that curcumin had the highest cytotoxicity effect against cell line (HNO97) with IC50=1.59 µg/ml in comparison to curcumin nanoparticles/PVA showed low cytotoxicity owing to the pH (7.4) …

Effect Of Polycaprolactone Nanofiber Membrane Versus Concentrated Growth Factor On Periodontal Ligament Model Defect, Ola Dewedar, Heba Adawy, Mai Attia, Mena Abdullah

Al-Azhar Journal of Dentistry

Purpose: This study was carried out to evaluate the effect of two different regenerative materials on periodontal Ligament Model Defect through histological examination of rabbit’s mandible. Material and Methods: Thirty-six (36) adult male New Zealand rabbits (weight 3 to 3.5 kg) were used and then divided randomly into 3 groups according to material received (n=12).Group I (GI) control group that did not receive any treatment, Group II (GII) that received polycarolactone nanofiber membrane (PCL), Group III (GIII) that received concentrated growth factor membrane (CGF), surgical procedures were done to create a bony defect of 5x5mm size in the right side …

What Dentists Do, Chester Gary Dds, Jd

The New York State Dental Journal

Understanding dentists' job description will motivate all payers of oral health services to offer fair compensation.

Contact Point Spring 2023, Arthur A. Dugoni School Of Dentistry

Contact Point

No abstract provided.

New Dentist News (April 2023), Ada Committee On The New Dentist

New Dentist News

New Dentist News offers timely information on scientific, social, educational, political and economic developments affecting new dentists. This collection is historical and items may not reflect current standards. For up-to-date information contact the ADA. The New Dentist News was alternately titled ADA Lifeline, 1997-June 2001.

Oral Health In Relation To The Covid-19 Pandemic, Anika L. Gram

Honors Thesis

Oral health has seen significant changes through the Covid-19 pandemic. Many people experienced the lifestyle alteration of wearing a mask for a major portion of their day-to-day life, and some went to the dentist significantly less than they did pre-pandemic. The literature review explores dental practices during the Covid-19 pandemic. It also examines mask-wearing behaviors both before and during the pandemic and the research that has been conducted previously regarding the potential effects of mask-wearing. Despite the decrease in use of masks post-pandemic, many healthcare professionals continue to wear masks daily. Additionally, in the event of future disease outbreak, it …

Institutional Intervention In Dat Preparation Among Undergraduate Pre-Dental Students, Remi Brebion

Senior Theses

The objectives of this project were to study the Dental Admission Test (DAT) preparation experience of undergraduate pre-dental students (UPDS) at the University of South Carolina (USC) and to determine actionable steps to raise DAT scores, increase diversity among pre-dental students, reduce financial burdens associated with the DAT, and improve wellbeing in this population.

A quantitative survey was distributed to characterize and create figures about UPDS demographics, use of advising services, preparation experience, and support for university- sponsored preparation resources. Ten phenomenological interviews were conducted to gain insights about the needs of UPDS. Thematic analysis was performed to identify unifying …

The Influence Of Peri-Cervical Dentin Conservation On The Propagation Of Cracks In Mandibular Molars, Hassanain Zaheer

Master's Theses (1922-2009) Access restricted to Marquette Campus

Introduction: The objective of this study was to investigate the effect of peri-cervical dentin conservation during root canal treatment on the longitudinal propagation of cracks, utilizing the finite element method. Methods: Two 3D printed mandibular molars were subjected to a simulated root canal therapy protocol. The teeth were divided into two test groups: Group 1: Instrumented with using Protaper Gold (PTG) rotary files. Group 2: Instrumented with using TruNatomy. Each access was restored with composite at the level of the CEJ to the occlusal surface. The two teeth were digitized using a high-resolution micro–computed tomographic scan to create 3-D models …

Enhanced Periodontal Ligament Stem Cell Viability And Osteogenic Differentiation On Two Implant Materials: An Experimental In Vitro Study, Sara Fikry, Shereen Nader Dr, Engy Farag Dr

Dentistry

Background: Surface roughness of dental implants impacts the survival of adult periodontal stem cells and rate of differentiation. This research was conducted to test how human periodontal ligament stem cells behaved on yttria stabilized tetragonal zirconia polycrystals and polyetheretherketone (PEEK) discs with different surface topographies. Methods: Discs roughening was prepared by sandblasting. Stem cells were cultivated on zirconia discs with a polished surface, PEEK discs with a polished surface, sandblasted zirconia discs and sandblasted PEEK discs. Cells viability was assessed after 24, 48, 72 hours. Scanning electron microscopy was used to examine the adherence and attachment of cells. Osteoblastic differentiation …

Double Immunohistochemical Analysis Of Pcna And Fak Expression In Selected Odontogenic Lesions, Safaa Baz, Sally Ibrahim

Dentistry

Background: Odontogenic neoplasms and cysts have diverse biological behaviors, ranging from indolence to aggression along a spectrum. The proliferating cell nuclear antigen (PCNA) is an antigen involved in DNA synthesis and proliferation. Focal adhesion kinase (FAK) is a cytoplasmic molecule associated with cellular signaling, growth, and invasion. PCNA and FAK markers have been shown to be involved in neoplastic proliferation, invasion, and migration. Hence, an immunohistochemical assay of PCNA and FAK can be used as a predictive tool for the level of aggressive behavior of odontogenic lesions. Methods: The current study was conducted to evaluate the expressions of PCNA and …

The Influence Of The Digitization Method On The Assessment Of Accuracy And Reliability Of Implant Placements, Ajitesh Singh

Master's Theses (2009 -)

Purpose: Studies investigating the accuracy of implant placement are utilizing different methods to digitize the post-operative implant position to compare it with the planned reference position. This study aimed to compare the influence on radiographic and digital methods in the accuracy of static computer-assisted and free hand implant placement.Methods: In total, n=40 implants were placed either fully guided (n=20) or free-handed (n=20) in standardized mandible replicas. A static surgical guide was planned for the fully guided surgery group (FG) for an implant at the lower right first molar site and 3D printed. In the free-hand group (FH) the implant surgery …

The Effect Of Endodontic Access Cavity Designs On Crack Propagation Of Mandibular Molars, Colin Kodama

Master's Theses (2009 -)

Introduction: This study aimed to develop a 3-D finite elemental analysis (FEA) model and digitally incorporate a crack into this model. After model development, this study compared the load required to propagate this crack in a mandibular molar with 3 different endodontic cavity designs using FEA. Methods: 3-D printed mandibular first molars (Endo 3DP; Acadental, Lenexa, KS) were accessed with 3 different access cavities: a traditional access cavity (TRC), a ninja access cavity (NAC), and a truss access cavity (TUC). The teeth were instrumented to EndoSequence #35/.04 in the MB and ML canals and #40/.04 in the D canal. Each …

A Digital Assessment Of Centric Relation Precision, Christine Roenitz

Master's Theses (2009 -)

Objective: Recording the centric relation position is a critical step in diagnosis and treatment in prosthodontics. There are various methods that can be used to position a patient’s mandible into centric relation. Among these are: swallow technique (unguided closure), chin-point guidance, and bimanual manipulation. The precision of these methods has previously been studied by traditional methods. Data is lacking on the precision of virtual recordings of these methods taken by an intraoral scanner. The purpose of this study was to assess the digital precision of the swallow, chin-point guidance, and bimanual manipulation centric relation positioning techniques.Materials and Methods: Ten participants …

The Influence Of Peri-Cervical Dentin Conservation On The Propagation Of Cracks In Mandibular Molars, Hassanain Zaheer

Master's Theses (2009 -)

Introduction: The objective of this study was to investigate the effect of peri-cervical dentin conservation during root canal treatment on the longitudinal propagation of cracks, utilizing the finite element method. Methods: Two 3D printed mandibular molars were subjected to a simulated root canal therapy protocol. The teeth were divided into two test groups: Group 1: Instrumented with using Protaper Gold (PTG) rotary files. Group 2: Instrumented with using TruNatomy. Each access was restored with composite at the level of the CEJ to the occlusal surface. The two teeth were digitized using a high-resolution micro–computed tomographic scan to create 3-D models …

Immediate Postoperative Dimensional Changes Following Implant Placement, Juan Felipe Valencia Rincon

Master's Theses (2009 -)

Objective: Hard tissue outcomes after implant placement have been well documented. However, there is scarce evidence on immediate soft tissue and patient-centered outcomes. The aim of this prospective study is to quantify post-implant placement edema and to correlate it with oral health-related quality of life. Methods: Patients undergoing a standardized two-stage implant placement at a single tooth-bound site were recruited (n=26; 54.13.3 years, 14 males). Soft tissue edema was recorded by using intraoral scans immediately pre- (PS) and post-operatively (IP), at 2 (2D), 7 (7D) and 14 days (14D) and 2 months (2M). After scan registration, ridge width, maximum height, …

Update: Oral Health Equity And The Ada, Jessica A. Rickert Dds, Elizabeth Carmen Lense Dds, Msha

The Journal of the Michigan Dental Association

The American Dental Association (ADA) defines "Health Equity" as the attainment of optimal oral health for all individuals, acknowledging oral health's crucial role in overall well-being. The article underscores the need for consistent and equitable access to oral care services, collaboration with other organizations to address societal health determinants, and enhancing diversity within healthcare providers and cultural understanding in dental teams to achieve Health Equity. Highlighting the impact of untreated dental disease on quality of life and productivity, the article discusses ADA's initiatives to promote Oral Health Equity, including advocating for comprehensive Medicaid benefits, promoting diversity in leadership, and supporting …

The Elevator Speech, Christopher J. Smiley

The Journal of the Michigan Dental Association

This editorial discusses the effectiveness of crafting an "elevator speech" for concise and impactful communication in various scenarios. Leaders at a previous MDA Board of Trustees orientation were trained to construct brief, efficient presentations of two to five minutes. The process involves targeting the audience's needs, focusing on critical points, and concluding with a call to action. Examples are given for addressing questions on MDA membership benefits, emphasizing volunteer contributions, services, resources, and the value of the MDA Journal. The editorial encourages readers to adopt these strategies for efficient communication in professional and public settings.

J Mich Dent Assoc April 2023

The Journal of the Michigan Dental Association

In this issue, the reader will find the following original content:

• A profile of two dentist legislators, Representative Steven Bradley, DDS of Iowa and Representative Jane Gillette, DDS, MPH. who represents Montana, to help readers best understand what that commitment means if they plan to seek elected office.
• An article discussing essential communication strategies to win elections.
• An update on ADA efforts to promote Oral Health Equity
• Profiles of MDA leadership candidates
• A 10Minute EBD contrasting closing diastemas with or without frenectomy with orthodontic treatment.
• Editorial, Advocacy update, News Briefs, News from the MDA Foundation, News from the ADA and …

An Osteoma Embedding An Ectopic Wisdom Tooth Within The Maxillary Sinus: A Rare Occurrence, Kayvan Fathimani Dds, Facs, Frcd(C), Fibcsoms

The New York State Dental Journal

Osteomas are frequently reported in the maxillofacial region with much lower incidences in the maxillary and sphenoid sinuses. An unerupted third molar within the maxillary sinus coexisting with a maxillary sinus osteoma is an extremely rare pathologic finding. Such cases can be managed endoscopically or intraorally through a Caldwell-Luc approach. The following case report deals with a patient who presents with an uncommon pathological finding: an osteoma embedding an ectopic tooth within the maxillary sinus.

N Y State Dent J April 2023

The New York State Dental Journal

In the April 2023 issue, the reader will find the following feature articles:

• A Dentist's Role in the Delivery of Culturally Competent Oral Health Care to Transgender Patients
• Oral Health Considerations for Aging Patients Living with HIV/AIDS
• An Osteoma Embedding an Ectopic Wisdom Tooth within the Maxillary Sinus A Rare Occurrence

This issue includes regular columns with regional news impacting the New York membership including: editorial and perspectives columns, legal, association activities, component news, continuing education opportunities, and classifieds.