Dentistry Commons^™

Root And Canal Morphology Of Mandibular Second Molars In An Egyptian Subpopulation: A Cone-Beam Computed Tomography Study, Shehabeldin Mohamed Saber Prof.Dr.

Dentistry

Background: This study was using Cone beam computed tomography (CBCT) to examine the anatomical variations in mandibular second molars in an Egyptian sub-population. Methods: A total of 350 CBCT images (215 females and 135 males, aged 15–65 years) of mandibular second molars were evaluated. Samples were evaluated in terms of: number of roots, number of root canals, roots’ cross section as well as prevalence and configurations of C-shaped canals. Statistical analysis was done to highlight differences between different categories and their prevalence among genders (significance level was set at p < 0.05). Data were presented as frequency and percentage values and were analyzed using chi square 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: Of the 350 mandibular second molars evaluated, 87.2% were non-C-shaped while 12.8% were C-shaped with no gender-based statistically significant differences (χ2 = 0.19, p = 0.656). Most samples had three root canals (80%) followed by two (16%), then one (3.2%), and finally four (0.8%) root canals. Among the non-C-shaped molars, presence of two roots was most common (83.4%) followed by presence of a single root (16.2%), and only one sample (0.2%) had three roots, and this had no correlation with gender (χ2 = 1.86, p = 0.431). In the mesial roots Type IV Vertucci was the most common configuration found (68.8%), while Type I was the most prevalent in the distal roots (91.8%). The long oval configuration was the most commonly found cross section in mesial roots while “oval” was the most prevalent in distal roots. Conclusion: Egyptian sub-population shows highly variable morphological features in mandibular second molars, hence, CBCT is highly recommended on case-to-case conditions.

The Biomechanical Behaviour And Life Span Of A Three-Rooted Maxillary First Premolar With Different Access Cavity Designs: A Finite Element Analysis, Shehabeldin Mohamed Saber Prof.Dr.

Dentistry

Objective: The present study aimed to evaluate the influence of different access cavity designs on the biomechanical behaviour of a three-rooted maxillary first premolar using finite element analysis (FEA).

Methods: Three experimental FEA models were generated: the intact tooth (IT) model, the traditional access cavity (TAC) model, and the conservative access cavity (CAC) model. In both TAC and CAC models, root canals preparation was simulated as follows: the mesiobuccal and distobuccal canals with a final tip size of 30 and taper of 0.04 and the palatal canal with a final tip size of 35 and taper of 0.04. Cyclic loading …

Local Chlorhexidine Delivery For Periodontal Infection Therapy: A Short Review, Muhammad Guruh Najmudin, Azizah Intan Pangesty, Rini Riastuti, Sunarso Sunarso, Abdul Halim Abdullah

Journal of Materials Exploration and Findings (JMEF)

Oral diseases affected more than half of the world’s population. Periodontitis is the second biggest threat to oral health after dental caries. Periodontitis is an inflammation inside periodontal pockets caused by pathogenic microbial colonies which lead to destruction of bone tissue and soft tissue. Chlorhexidine gluconate is an antimicrobial agent that effective to destroy pathogenic microbial and cure periodontitis. Chlorhexidine gluconate is given locally using a carrier material to the infected area. There are several materials that can be used to deliver Chlorhexidine gluconate to the infected periodontal tissue such as gel, liquid (mouthwash), and chip. This short review aims …

The Herlyn-Werner-Wunderlich (Hww) Syndrome– A Rare Case Report, Dr Harisha H L Dr, Dr Vishal Natarajan Dr, Dr Rudresh Hiremath Dr

Radiology Teaching Files

A 20-year-old unmarried female, student by occupation, well built and nourished presented with intermenstrual spotting from past 1 month. No h/o pelvic pain/ mass/ fever. No h/o of similar complaints in the past. Attained menarche at 14 years. Menstrual history otherwise normal.Known case of right renal agenesis (diagnosed incidentally at the age of 8 years).

Pelvic examination by gynecologist revealed a cystic bulge to the anterior wall of vagina. On MRI, our case is right sided renal agenesis; uterus didelphys with obstructed hemi vagina and to infected collection along the vaginal wall.

Assessment Of The Effect Of Two Different Digital Fabrication Techniques On Marginal And Internal Fit Of Interim Fixed Dental Prothesis, Mohamed A. Shalaby, Mennatallah M. Wahba, Hisham I. Al-Ansari, Ahmed N. Mohamed

Future Dental Journal

Aim: The aim of that study was to evaluate the marginal and internal fit of a 3-unit, and 6-unit interim fixed dental prosthesis manufactured through milling and 3D printing technologies. Materials and Methods: Forty-eight interim fixed dental prostheses (FDP) were equally divided into two groups according to the fabrication technique. In group (MT), specimens were fabricated through milling technology while in group (PT), specimens were obtained by 3D printing. Each group was subdivided equally according to the FDP span length into 3-unit FDP (SFDP), and 6-unit FDP (LFDP). Marginal and internal fit were measured through the superimposition of the digital …

Digital Fabrication Of Attachment For Implant-Anchored Auricular Prosthesis (Case Report)., Hussein El Charkawi Proffesor

Future Dental Journal

Aim: This novel technique, has adopted digital technology to fabricate a customized precision attachment for a patient who has lost his attachment which anchor his implant retained auricular prosthesis. A scanner was used to acquire the ball abutment’ geometry of craniofacial implant in the mastoid area. CAD/CAM technology and special software was used to fabricate a customized small PEEK precision attachment that was no longer available in the market. This attachment was picked-up by an auricular prosthesis. The retention qualities of the auricular prosthesis with this attachment was satisfactory for both the patient and the dentist. This novel approach will …

Prevalence Of Molar Incisor Hypomineralization In A Group Of Egyptian Children, Ayah Essam Almenawi B.D.S, Norhan Abd El-Wahab El-Dokky Professor Of Pediatric Dentistry & Dental Public Health, Soad Abdelmoniem Abdelmoniem Professor Of Pediatric And Dental Public Health

Future Dental Journal

Background: Molar incisor Hypomineralization (MIH) has become a more widespread problem around the world, while its prevalence in Egypt is underestimated with no data on its correlation to Hypomineralization of Second Primary Molars (HSPM). Aim: Estimate the prevalence of MIH and HSPM in Egypt, investigate the possibility of HSPM being a predictive factor for MIH, and the probable etiological factors for MIH. Material and Methods: Three hundred and seventeen healthy children aged seven to ten years old were dentally examined for Molar Incisor Hypomineralization and Hypomineralization of Second Primary Molars and all potentially correlated etiological factors. Both MIH and HSPM …

Evaluation Of Accuracy Of Intraoral Scanners Versus Extra Oral Scanners In Different Dental Arch Measurements, Mohamed Walid Saleh, 20143278@Fue.Edu.Eg , Future University In Egypt, Fouad Sharaby Fsharaby@Dentistry.Cu.Edu.Eg , Associate Professor Of Orthodontic Department Of Orthodontics Faculty Of Dentistry Cairo University, Essam Nassef Essam.Nasssef@Fue.Edu.Eg , Professor Of Orthodontic Department Of Orthodontics Faculty Of Oral And Dental Medicine Future University In Egypt

Future Dental Journal

Background: Orthodontics has been influenced by new technologies in many areas. There is a shift toward digitization of patient’s information and data. Aim: The aim of this study was to compare the accuracy of intraoral scanner and extra oral scanners using different dental arch measurements. Materials and Methods: The sample size consisted of 44 dental stone models for patients who finished orthodontic treatment. For each subject two digital models were made, one digital model obtained from extra oral scanner and one digital model obtained from Intra oral scanner. An external examiner measured intermolar width, intercanine width, mesiodistal width of the …

Changes In Lip Length And Strain After En-Masse Retraction With Maximum Anchorage In Female Patients With Bimaxillary Protrusion, Leena Shibl, Amr El-Beialy, Yehya Mostafa, Heba Dehis

Future Dental Journal

Aim: The aim of the study is to evaluate the effect of en-masse retraction with maximum anchorage on the lip length, lip strain, and interlabial gap in adult female patients with bimaxillary protrusion. Materials and Methods: Thirteen patients underwent initial records including photographs, study casts, and cephalometric x-rays. En-masse retraction was performed using friction mechanics, with the use of temporary anchorage devices and power chains after the extraction of first premolars. The soft tissue was analyzed using lateral cephalometric radiographs before and after retraction. Results: The results showed that en-masse retraction had a significant effect on reducing lip strain, increasing …

Questionnaire Survey On Pain & Mini-Implant Failure In Class Ii Female Patients After Extraction Of Maxillary Second Molars Using Infra Zygomatic Mini Implants, Hosam Abdullah Zaza, Nagwa El Mangoury, Amr El Dakrory, Mostafa El Dawlatly

Future Dental Journal

Background: Skeletal anchorage devices have been developed for case requiring absolute anchorage during orthodontic treatment. One of these anchorage devices is the Infra-zygomatic mini-implant type. However, the pain associated with this type of appliance have not been sufficiently evaluated from the patient’s point of view. Aim: The aim of this study was to survey patients for one week after insertion of the infra-zygomatic mini-implants and 1 week following every reactivation in order to evaluate their pain and discomfort as well as the percentage of mini-screw failure. Materials and methods: 10 patients requiring infra-zygomatic mini-implants were selected. All participants completed questionnaires …

Expression Of Vimentin, Α-Sma And Tgf-Β In Different Grades Of Oral Squamous Cell Carcinoma, Hala El-Kammar, Waleed F. Esmael, Nermeen S. Afifi

Future Dental Journal

Abstract

Background: Oral Squamous cell carcinoma (OSCC) is typically discovered at an early stage; nevertheless, regional lymph node metastases are prevalent; therefore, surgical excision of the primary tumor is commonly coupled with neck dissection and radiotherapy. Cancer cells become invasive by acquiring a mesenchymal phenotype, a process known as the epithelial-to-mesenchymal transition. Vimentin, α-SMA and TGF-β expressions are believed to take part in EMT and tumor progression. Aim: this work aimed to evaluate the expression of Vimentin, α-SMA and TGF-β on OSCC progression and hence propose potential role as potential prognostic markers or therapeutic targets. Materials and methods: twenty-four specimens …

Assessment Of Crestal Bone Loss And Implant Stability Of Implant Drilling Protocol At Low Speed Without Irrigation Versus Conventional Drilling Protocol, Omar Elmeligy O. Elmeligy, Ahmed Farid Shehab, Sameh Mekhemer, Ahmed Abozekry

Future Dental Journal

Abstract

Aim: This study assesses crestal bone loss surrounding dental implants, primary and secondary stability in sites prepared by conventional versus low speed drilling protocol. Material and Methods: Ten patients received 20 implants to restore an edentulous area in the lower posterior mandibular area. Patients were blindly divided into a control and study group. In the control group, sequential drilling was performed at 1,200 rpm and torque of 30 Ncm with irrigation till reaching the planned length and diameter. In the Study group, sequential drilling was performed at 150 rpm and torque of 50 Ncm without irrigation till reaching …

Computer Guided Versus Conventional Maxillary Sinus Augmentation Using Allogenic Bone Blocks With Simultaneous Implant Placement In Severely Pneumatized Sinuses, Hisham G. Zulhemma Department Of Oral And Maxillofacial Surgery, Future University In Egypt, Egypt. 20172740@Fue.Edu.Eg, Waleed Ragab El-Beialy Professor Of Oral And Maxillofacial Surgery -Cairo University, Egypt. Wbeialy@Yahoo.Com, Ahmed Abd Elsamad Associate Professor Of Oral And Maxillofacial Radiology– Cairo University, Egypt. Abdalsamad_A@Yahoo.Com, Ahmed Abozekry Lecturer Of Oral And Maxillofacial Surgery –Future University In Egypt, Egypt. Ahmed.Kamal@Fue.Edu.Eg

Future Dental Journal

Background: Maxillary sinus lifting is a complex procedure with reported complications in the literature where the presence of sinus septa further complicates the procedure, they including membrane perforation, bleeding. Aim: The aim of this study is to decrease the incidence of membrane perforation which is the most common reported complication, and to determine whether the use of surgical guides could decrease the incidence of membrane perforation. Materials and methods: A total of 12 cases where blindly divided into 2 groups; Group (A) computer guided maxillary sinus lifting and Group (B) conventional sinus lifting, both groups received allogenic bone blocks for …

Efficacy Of Preemptive Dexamethasone And Diclofenac On Pain Control During Maxillary Alveolar Ridge Horizontal Augmentation Using Cortical Shell Augmentation Technique: A Randomized Clinical Trial, Dina Ayman Fayek D.Ayman, Mohamed Mounir M.Mounir, Lobna Abdrlaziz Aly, Ahmed Abozekry

Future Dental Journal

Background: Despite the popularity and success of autogenous cortical shell augmentation, it is a painful procedure, limiting its acceptance by patients specifically if general anesthesia is not a viable option. Aim: This study assessed the analgesic efficacy of co-administration of intramuscular diclofenac sodium and dexamethasone preoperatively. Material and Methods: Patients selected according to the inclusion criteria were randomly divided into 2 equal groups. A similar surgical augmentation technique was performed in both groups using autogenous cortical shell technique. The study group received an intramuscular injection of dexamethasone and diclofenac sodium before surgery, and pain level was measured using VAS (visual …

Therapeutic Effect Of Curcumin, Ginger And Tamarind On Oral And Paraoral Tissues: (Histological Overview), Mona El Deeb, Amany A. Rabea

Future Dental Journal

Background: Biocompatible substances from plant origin have been more in focus in contemporary dentistry. Aim: This review, aimed to highpoint the influence of curcumin, ginger and tamarind on different oral and paraoral tissues from histological point of view. Material and methods: A narrative review was carried out based on publications in PubMed, google and Scopus database. The documents published up to 2021 were included. The research was based on inclusion criteria of 89 studies.Results: Curcumin inhibits alveolar bone resorption, reduces inflammatory cell infiltration, aids in epithelial regeneration and improves salivary glands architecture. Ginger was found to be beneficial in …

Commencement Program 2023, Loma Linda University

Commencement Programs

CONTENTS

1 | Message from the President

3 | 2023 Events of Commencement

5 | The Academic Procession

6 | Institutional Administration

7 | Board of Trustees

8 | Significance of Academic Regalia

9 | University History Highlights

11 | Criteria for Institutional Awards

13 | Loma Linda University Health and Loma Linda University Honorees

25 | The Program, The School Honorees, and The Speakers

• School of Medicine, 26
• School of Pharmacy, 52
• School of Dentistry, 69
• School of Public Health, 93
• San Manuel Gateway College, 108
• School of Allied Health Professions—Allied Health Studies, Cardiopulmonary Sciences, Clinical Laboratory Science, Communication …

Model Minority Myth And Oral Health Disparities In Asian Americans Of Multnomah County In Oregon, Taylor Kang

University Honors Theses

This thesis explores the concept of the Model Minority Myth (MMM) and its impact on minority groups such as Asian American communities. It discusses how the MMM is one of the many reasons why health disparities such as oral health disparities, may exist for these groups, particularly in the context of White-majority places like the city of Portland and Multnomah County in Oregon. These disparities, as a result, prevent communities from achieving racial equity in areas such as employment, education, occupation, and income, to name a few. At first glance, the MMM seems to shed an optimistic light with its …

The Relationship Between Diabetes And Oral Health Status, And Dental Visits Among American Indian, Alaska Native, And Native Hawaiian Elders, Shawnda Schroeder, Collette Adamsen, Robin Besse

Indigenous Health Faculty Publications

Background: American Indian (AI), Alaska Native (AN), and Native Hawaiian (NH) populations report higher rates of diabetes, poorer oral health, and fewer dental visits than their peers. The authors aimed to identify relationships between oral health and dental visits and diabetes diagnosis among AI, AN, and NH elders. Methods: Data were obtained from a national survey of AI, AN, and NH elders 55 years and older (April 2014-2017) and included 16,136 respondents. Frequencies and c2 tests were used to assess the relationship between oral health and dental visits, and diabetes. Results: Nearly one-half of the elders reported receiving a …

Report: Evaluation Of Seal!Nd: School Year 2021-2022: North Dakota Department Of Health Oral Health Program’S School-Based Dental Sealant Program, Shawnda Schroeder, Tonya Connor

Indigenous Health Faculty Publications

The North Dakota Department of Health (DoH)a Oral Health Program (OHP)b has established a school-based dental sealant program, (SEAL!ND)c , which has been providing dental sealants, fluoride varnish applications, oral health education and dental screenings and referrals for students throughout North Dakota dating back to 2012. All services occur in the school during school hours. School-based sealant programs are a highly effective way to deliver preventive oral health services and dental sealants to children less likely to receive private dental care. The SEAL!ND program prioritizes providing preventive oral health care to low-income and underserved students by targeting schools with 45% …

Oral Health Literacy: A Tool To Reduce Oral Health Disparities Among Californians, Rubina Bukhari

Master's Projects and Capstones

Oral health is the health of the mouth, cheeks, teeth, and their supporting structure within the oral cavity. It helps in performing day-to-day routine functions such as swallowing, tasting, chewing, talking, and making a wide array of complex facial expressions. Apart from performing everyday functions, oral health is a crucial contributor to the overall state of well-being and good quality of life. It is measured by oral conditions such as tooth decay, gum disease (Periodontal), and oral cancers. Tooth decay and cavity formations are the most prevalent oral health conditions which affect people of all age groups. However, children are …