Dentistry Commons^™

Impact Of Resin Composite Restorative Material Pre-Heating On Dental Pulp Temperature: A Laboratory Study, Asmaa S. El-Saeed, Fatma A. Elerian, Hamdi H. Hamama, Salah H. Mahmoud

Mansoura Journal of Dentistry

Objective: To investigate and compare the impact of pre-heating of an ormocer-based and a methacrylate-based restorative materials at different temperature on intra-pulpal temperature with that at room temperature. Materials and Methods: In the current study, two bulk-fill composite systems; one ormocer-based, and one methacrylate-based were used according to their manufacturer instructions. A total of 30 sound maxillary human molars was selected, and prepared by removal of occlusal enamel and part of dentin till remaining dentin thickness becomes 2 mm above highest pulp horn. The specimens were assigned equally into two halves, according to type restorative material used (n=15 for each). …

Comparison Between The Effect Of Bisphosphonates And Concentrated Growth Factors On Bone Healing Experimental Study, Mohammed A. Naji, Rana M. Nagah, Fakhreldin H. Abdel-Rahman, Hamdy A. Marzook

Mansoura Journal of Dentistry

Objective: Objectives: The aim of study was to compare the histological effect of Bisphosphonates (BPH) and Concentrated growth factors (CGFs) in bone defect healing. Materials and Methods: This experimental trial was conducted on 8 adults healthy New Zealand male rabbits weighing (2–3kgs). The rabbits are grouped as following: 4 rabbits in the CGF group and 4 rabbits in the BPH group and then sub-grouped according to sacrification time into 2 and 4 weeks in each rabbit. Two circular bone defects were created in the tibia (so every group have 8 defect). After that, each rabbit was treated by either BPH …

Evaluation Of The Effects Of The Incisal Capping Twin Block On The Flaring Of The Lower Incisors In The Treatment Of Skeletal Class Ii Malocclusion, Asmaa A. Elabd, Marwa A. Tawfik, Ahmed M. Hafez

Mansoura Journal of Dentistry

Objective: The purpose of this research was to evaluate the effect of the incisal capped Twin Block on the proclination of the lower incisors in the treatment of skeletal class II malocclusion. Materials and Methods: Ten patients (age ranged from 9 to 14 y) with skeletal class II due to mandibular retrusion were selected and treated with the incisal capped Twin Block appliance. Overjet was more than 4 mm. Lateral cephalometric radiographs, photographs, and study casts were obtained before and after treatment. The collected data were analyzed using (SPSS) program for Windows (Standard version 26). The treatment duration was about …

Comparative Evaluation Of Shaping Ability And Cleaning Efficiency Of Three Different Nickel-Titanium Rotary Systems, Reham I. Zehairy, Manal F. Osman, Amro A. Abd El-Razik

Mansoura Journal of Dentistry

Objective: This study was conducted to compare the shaping ability and cleaning efficiency of Mtwo, ProTaper Next and HyFlex CM rotary systems. Materials and Methods: A total of 45 root canals with curvatures ranging between 20o and 40o were divided into three groups of 15 canals: Mtwo, ProTaper Next and HyFlex CM based on pre-instrumentation radiographs. Canals were prepared to an apical size of 30. Using pre- and post-instrumentation radiographs, canal straightening was determined with a computer image analysis program. Preparation time was also recorded. These data were analysed using one-way analysis of variance (ANOVA) and post hoc Tukey’s test, …

Accuracy Of Digital Models In Bolton Analysis For Angle Class I Malocclusion Group, Ibrahim M. Abd-Elgawad, Marwa S. Shamaa, Ahmed M. Fouda

Mansoura Journal of Dentistry

Objective: This study aimed to test the accuracy and reliability of measurements using digital models versus plaster models. Materials and Methods: Thirty patients were recruited in the study. Impressions were taken for all patients by alginate impression material and poured immediately using certain dental plaster with good dimensional accuracy and surface details reproduction. All casts were trimmed and polished for obtaining high quality study models. Bolton analysis was done by manual and digital techniques for all casts. Intra-operator reliability testing and Paired-samples t-tests was used to compare the measurements within groups. Results: There was an excellent intra-operator reliability for both …

Comparison Of Cyclic Fatigue Resistance Of Three Ni-Ti Rotary Files, Mohamed A. El-Dreny, Mohamed M. Ibrahim, Amany E. Badr

Mansoura Journal of Dentistry

Objective: To compare the cyclic fatigue resistance of three Ni-Ti rotary files. Materials and Methods: A number of forty-five different nickel titanium rotary instruments (n = 15) were used in this study. All files were used according to their manufacturers' instructions. A specially designed, custom-made cyclic fatigue testing device was used in this study. The device had a simulated curved root canal within a stainless-steel block with a 45° angle of curvature and 5 mm radius of curvature. The time to fracture (TtF) in seconds was recorded visually using stopwatch. To characterize fracture mode, fractured fragments from each group were …

Effect Of Over-The-Counter Whitening Products On Enamel Color Change And Surface Roughness - A Laboratory Study, Estbrq A. Mousa, Radwa I. El-Toukhy, Ashraf I. Ali

Mansoura Journal of Dentistry

Objective: To evaluate the effect of various over-the-counter whitening products on enamel color change and surface roughness. Materials and Methods: Ninety bovine teeth were collected and sectioned at the cementoenamel junction. Fifty teeth were selected and stained for color change test. They were randomly divided into five groups according to the whitening product applied (n= 10). Color measurements were carried out with a spectrophotometer. The remaining Forty teeth were used for surface roughness test, where they were randomly divided into four groups n=10. Surface roughness was evaluated with optical profilometer. Results: The color change (Δ��) was significantly greater in the …

Antimicrobial Efficacy Of Different Root Canal Irrigants In Primary Teeth: Clinical Study, Nada H. Elmenbawy, Ahmed H. Wahba, Doaa Masallat, Salwa Awad

Mansoura Journal of Dentistry

Objective: Evaluation of antibacterial efficacy of 2.5% Sodium Hypochlorite (NaOCl), 3.8% Silver Diamine Fluoride (SDF), and 25% water-soluble extract of Propolis as root canal irrigants in primary molars. Materials and Methods: Thirty primary molars with a necrotic pulp of children in the age group 4-7 years were selected and divided into 3 groups randomly based on the irrigating solution used. In group A, 2.5% NaOCl was used as a positive control group. In groups B and C, 3.8% SDF and 25% water-soluble extract of Propolis were used respectively. The bacterial samples were collected pre-and post-irrigation using paper points and transferred …

The Expression Of Bmi-1 In Ameloblastoma And Dentigerous Cyst, Omnia S. Mohamed, Azza A. Elsissi, Osama A. Elkashty

Mansoura Journal of Dentistry

Objective: To check for a possible relation between the expression of BMI-1 among two different odontogenic lesions; ameloblastoma and dentigerous cyst known for different biological behavior. Materials and Methods: The study was conducted on 14 formalin-fixed paraffin-embedded blocks (ameloblastoma (Am) group: seven blocks and dentigerous cyst (DC) group: seven blocks). These blocks were collected from archived files of the Department of Oral Pathology, Faculty of Dentistry, Mansoura University. Immunohistochemically (IHC), the BMI-1 polyclonal antibody expression in the retrieved sections was investigated. A computerized method was used to compare the IHC staining intensity between both groups. Results: The difference in the …

Awareness Of Evidence Based Recommendations On Toothbrush Bristles Design And Texture Among Dentists, Nasr M. Attia, Ahmed Mahmoud Etman

Mansoura Journal of Dentistry

Objective: Dental plaque is a necessary etiologic factor in the onset and progression of dental caries and periodontal disorders. Numerous individual and material-based factors have an impact on dental plaque control. In light of the most recent evidence-based guidelines, this study's purpose is to determine the best toothbrush bristles surface plane design (flat; multilevel; angled), texture (soft; medium; hard) and to estimate how many dentists are aware of that too. Materials and Methods: This is a one-question survey directed on social media platforms of dentists' groups: - “Is it preferable to use a toothbrush with soft or medium bristles, and …

Effect Of Different Surface Treatments And Repair Materials On Shear Bond Strength Of Bulk-Fill Resin Composite, Alyaa A. Soliman, Rabab Mehesen, Ashraf I. Ali

Mansoura Journal of Dentistry

Objective: To evaluate the effect of different surface treatments on shear bond strength (SBS) between bulk-fill resin composite (BFRC) and bulk-fill flowable resin composite (BFFRC) or conventional flowable resin composite (CFRC). Materials and Methods: Sixteen blocks were prepared from Tetric N-Ceram BFRC, aged by thermo-cycling, and then stored in artificial saliva for 6 months. The blocks were divided into 4 groups (n=4) according to the surface treatment; Group1: roughened by coarse discs, Group 2: roughened by coarse discs and silanization, Group 3: roughened by air abrasion, and Group 4: roughened by air abrasion and silanization. Each group was subdivided into …

Macomb Dental Society Journal Fall 2022

Journal of the Macomb Dental Society

In the Fall 2022 issue, the reader will find the following feature articles:

• Young Dentists
• The Macomb Oakland Detroit Meeting
• The General Meeting

Also included are regular columns from the President, Executive Director and Editor, as well as news shorts and information on upcoming events.

Effect Of Finishing/Polishing Techniques On Surface Roughness Of Three Different Resin Composite Materials: A Laboratory Study, Adham A. Khairy, Radwa I. El-Toukhy, Nadia Zaghlol

Mansoura Journal of Dentistry

Objective: To determine the changes in surface roughness of different resin based composite materials having spherical shaped fillers after finishing and polishing with different systems and various application steps either one, two or three-steps. Materials and Methods: A total of 120 disc-shaped specimens (10 mm diameter × 2 mm thickness) were prepared from three different RBC materials (n=40 discs/group): a Nano-fill resin composite (Omnichroma); a Nano-ceramic resin composite (Neo Spectra ST) and a Nano-hybrid resin composite (Charisma Topaz). Each group was subdivided into four subgroups (n=10) according to the finishing/polishing (F/P) system: control (without F/P), one-step system (Enhance); two-step system …

Dean’S Report: Detroit Mercy Dental Evolving With Purpose, Value, And Pride: A Look At The Past Year And All The People Who Made It Happen, Mert N. Aksu Dds, Jd, Mhsa, Cert. Dph

The Journal of the Michigan Dental Association

In the past year, the University of Detroit Mercy School of Dentistry has continued its commitment to evidence-based clinical education, preparing ethical and culturally sensitive graduates for dental practice. Changes brought on by the pandemic have become part of the new normal, with the introduction of the HyFlex classroom format, allowing students flexibility in attending classes in person, virtually, or through recorded lectures. Clinic time and sessions have been consolidated to provide more focused patient care, with students now spending 28-30 hours per week on direct patient care. The University Health Center (UHC) clinic, which served as a significant teaching …

Dentistry And The Law: Understanding The Dental Plan Audit Process, Dan Schulte Jd

The Journal of the Michigan Dental Association

Dental plan audits, which can result in demands for fee repayments, often focus on recordkeeping deficiencies rather than the quality of dental services. Dentists should be aware of key points regarding these audits, including the timing, the nature of audit findings, and the lack of immunity from prior authorizations. Dentists should also request clarification when the audit results are unclear and seek explanations for alleged deficiencies. The audit process may lack a comprehensive explanation, suggesting that the primary goal for dental plans is financial recovery rather than the correction of errors or documentation improvement.

Maxillary Central Incisor Rr In Hispanic And Non-Hispanic White Patients With Rme, Madison Healy

Loma Linda University Electronic Theses, Dissertations & Projects

Introduction: Apical root resorption is one of the most common adverse effects of orthodontic treatment. Forces used during orthodontic tooth movement can cause permanent loss of apical surfaces of teeth and although most reported cases of root resorption are asymptomatic, the process is irreversible and often unpredictable. Thus, it is of clinical interest to investigate which patients may be at greatest risk.

Purpose: This study utilized Cone Beam Computed Tomography (CBCT) to evaluate whether rapid maxillary expansion (RME) in Hispanic patients increased the severity of orthodontically induced apical root resorption.

Materials and Methods: Pre-treatment (T1) and post-treatment …

Anatomical Analysis Of Inferior Alveolar Nerve Relation To Mandibular Posterior Teeth Using Cone Beam Computed Tomography: A Retrospective Radiographic Analysis Study, Shehabeldin Mohamed Saber Prof.Dr.

Dentistry

Introduction: Cone beam computed tomography (CBCT) is reliable in the assessment of structures related to teeth. The assessment of the inferior alveolar neurovascular (IAN) bundle location using CBCT is considered one of its prime uses in different mandibular surgeries. Methodology: Retrospective CBCT data of patients presented to the institute were assessed to measure relations of IAN. Measurements were taken to assess the bone thickness adjacent to IAN, the superior-inferior dimension between the canal and the teeth, and the dimension between the canal and the inferior border of the mandible. Results: Out of the 170 patients the root apices nearest to …

Headquarters Report: Inspire! Support! Lead! With The 2022 Leadership Forum, Karen Burgess Cae

The Journal of the Michigan Dental Association

The Michigan Dental Association highlights the importance of volunteer leaders in the organization's success and the satisfaction of its membership. The in-person Leadership Forum for 2022 offers an exciting lineup, including topics on dental practice trends, legislative action, inclusion, and hot topics in organized dentistry. Breakout sessions cover leadership development, time management, emotional intelligence, and component engagement. Whether experienced or new to volunteer leadership, attending the Leadership Forum provides opportunities for personal and professional growth. Additionally, the article mentions various leadership opportunities available for members and encourages recognition through the MDA Committed Colleague program.

The Promise Of The White Coat, Christopher J. Smiley Dds

The Journal of the Michigan Dental Association

This month’s editorial discusses the significance of the White Coat Ceremony in dental education, symbolizing a promise to uphold the profession with compassion and ethical standards. Dr. Smiley reflects on the challenges of teaching lasting ethical behavior and emphasizes the importance of personal values. He shares a real-life case of a classmate's unethical behavior leading to legal consequences, highlighting the role of peers in upholding ethical standards. The editorial encourages clinicians, whether they had a formal White Coat ceremony or not, to embrace the symbolic white coat as a daily reminder of their commitment to ethical patient care.

Dean’S Report: University Of Michigan School Of Dentistry Advancing Dental Education And Oral Health Science Is Our Passion And Mission, Jan Hu Bds, Phd

The Journal of the Michigan Dental Association

The Dean of the University of Michigan School of Dentistry, Jan Hu’s annual report to our readers, highlights the school's dedication to dental education and oral health science. The report underscores the school's commitment to maintaining high standards in the face of changing times. Key Highlights:

1. Educational Normalcy: Despite the challenges posed by the pandemic, the school has returned to a sense of normalcy in educating DDS, dental hygiene, and graduate students. Stringent infection control measures are still in place.
2. Vibrant Research: The school's research endeavors remain strong, with over 200 papers, articles, and reviews published in prestigious academic journals …

Fraud, Hipaa And Telehealth, Lance Plunkett Jd, Llm

The New York State Dental Journal

Techonology is a wonderful thing, but it introduces all kinds of new considerations concerning the safe and legal conducft of the dental practice.

Maxillary Sinus Foreign Body From An Usual Source: Provisional Prosthesis Material, Daniel Sultan Dds, Md, Peter Balacky Dds, Peter Protzel Dds, Md

The New York State Dental Journal

Background: Antral foreign bodies disrupt normal sinus drainage and can lead to sinusitis and infection. These foreign bodies can arise from many sources including several unique to the dental setting. Case Description: Typical sources like displaced teeth, roots, and root canal filling materials would be iatrogenically introduced at the time of sinus violation. However, we report the unusual case of displaced provisional prosthesis material introduced via a small and almost invisible oroantral fistula several years following extraction. Practical Implications: light of this case, we emphasize the importance of the Valsalva test to diagnose oral antral fistulas following extractions and prior …

An Overview Of Maxillofacial Rehabilitation For The General Dentist, Vladimir Frias Dds, Ms

The New York State Dental Journal

The rehabilitation of the maxillofacial patient is mostly carried out in a multi-specialty treatment environment such as a comprehensive cancer center, where multiple specialists are available to treat the numerous concerns and complications that may occur. Many of these patients are seen by the maxillofacial prosthodontist at the same time as the other members of the team and maxillofacial rehabilitation can be treatment planned and performed expediently. Some patients, however, are treated without rehabilitation in mind and go years without appropriate referrals. A knowledge of the multiple types of prostheses available will allow the general practitioner to decide if a …

N Y State Dent J August-September 2022

The New York State Dental Journal

In the August-September 2022 issue, the reader will find the following feature articles:

• Maxillary Sinus Foreign Body From an Unusual Source: Provisional Prosthesis Material
• Antihypertensive Drug-induced Orofacial Angioedema: Case Reports
• An Overview of Maxillofacial Rehabilitation for the General Dentist

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.

Antihypertensive Drug-Induced Orofacial Angioedema: Case Reports, Daria Vasilyeva Dds, Ashley Houle Dds, Md, Louis Mandel Dds

The New York State Dental Journal

The antihypertensive medications, angiotensin-converting enzyme inhibitors and angiotensin receptor blockers can cause orofacial angioedema (AE). Because the AE can result in serious complications, the dental practitioner must be prepared to make a prompt diagnosis.

Don't Let The Technology Tail Wag The Clinical Judgment Dog, Chester Gary Dds, Jd

The New York State Dental Journal

Misuse of artificial intelligence will threaten dentists' professional autonomy and erode public trust in the dentist-patient relationship.

Staff Matters: Should You Create A Combined Pto Bank?, Jodi Schafer Sphr, Shrm-Scp

The Journal of the Michigan Dental Association

Consider consolidating separate leave banks into a combined Paid Time Off (PTO) system to simplify administration and boost employee flexibility. PTO allows staff to use their leave days for any purpose without providing a reason. While it fosters trust and personal accountability, it may lead to employees saving days for vacations and working while sick. A PTO policy should address availability, employee type, coordination, and communication to encourage PTO utilization, prevent burnout, and enhance work-life balance.

10-Minute Ebd: Does Articaine Compared To Lidocaine Result In A Higher Risk Of Paresthesia?, Ben Balevi Dds, Msc

The Journal of the Michigan Dental Association

This Evidence-Based Dentistry column examines whether articaine, when compared to lidocaine, increases the risk of paresthesia in adults undergoing dental block anesthesia. After conducting a comprehensive literature search, the evidence suggests that 4% articaine may enhance the probability of achieving profound block anesthesia, with a very low risk of paresthesia, comparable to other dental local anesthetics. Considering this evidence in conjunction with the patient's preferences and values is crucial when making clinical decisions.

J Mich Dent Assoc September 2022

The Journal of the Michigan Dental Association

Monthly, The Journal of the Michigan Dental Association brings news, information, and feature articles to our state's oral health community and the MDA's 6,200+ members. No publication reaches more Michigan dentists! In this issue, the reader will find the following original content:

• Annual reports to our readers from each of our state dental schools.
• A 10-Minute EBD column on the use of Articaine local anesthetic.
• News you need, an Editorial and regular department articles, Dentistry and the Law, Staff Matters, Advocacy, Headquarters Report and component news.

This issue also includes one article reprinted with permission.

• Student A by ADA Trustee …

Diverse Stem Cells For Periodontal Tissue Formation And Regeneration, Mizuki Nagata, Jeryl D English, Noriaki Ono, Wanida Ono

Faculty, Staff and Student Publications

The periodontium is comprised of multiple units of mineralized and nonmineralized tissues including the cementum on the root surface, the alveolar bone, periodontal ligament (PDL), and the gingiva. PDL contains a variety of cell populations including mesenchymal stem/progenitor cells (MSCs) termed PDLSCs, which contribute to periodontal regeneration. Recent studies utilizing mouse genetic models shed light on the identities of these mesenchymal progenitors in their native environment, particularly regarding how they contribute to homeostasis and repair of the periodontium. The current concept is that mesenchymal progenitors in the PDL are localized to the perivascular niche. Single-cell RNA sequencing (scRNA-seq) analyses reveal …