Oral Biology and Oral Pathology Commons^™

Dental Pulp-Derived Stem Cells Applied For Tissue Rehabilitation Could Increase The Risk Of Recurrence In Oral Cancer Patients: Evidence From In-Vitro Analysis, Thirumal Raj, Supriya Kheur

Annual Research Symposium

No abstract provided.

P53 Tumor Suppressor Gene Expression In Ameloblastoma Subtypes: An Immunohistochemical Analysis, Yara Y. Mouselhy, Ahmed Abozekry, Iman M. Abdel Meguid, Raneem F. Obeid, Mai Abdelhalim Hamouda, Hala El-Kammar

Future Dental Journal

Background: Ameloblastoma is the most frequent of the benign epithelial odontogenic tumours. It exhibits a unique biologic behavior which demands meticulous understanding for thorough diagnosis and management. P53 tumor suppressor protein functions as a gatekeeper of cell division, inducing either cell cycle arrest or apoptosis. While mutations in the p53 gene are often detected in human cancers; the role of p53 in ameloblastoma remains elusive.

Material and methods: To investigate p53 expression in ameloblastoma, a retrospective study was designed to evaluate and compare immunohistochemical p53 protein expression patterns, in follicular ameloblastoma, plexiform ameloblastoma and unicystic ameloblastoma. Nine paraffin-embedded archival tissue …

Visual Artificial Intelligence In Healthcare: A Revolution In Making, Sanjay S. Rao, Punnya. V. Angadi

Indian Journal of Health Sciences and Biomedical Research KLEU

Visual artificial intelligence (AI) is a branch of computer science that teaches robots to understand images and visual information similarly to how humans do. According to the algorithm's development, visual AI allows robots to do more than just perceive; it also allows them to understand and sense the meaning behind images. Because of the enormous progress made in this area, computers are now able to recognize and interpret images more accurately than humans. From managing medical data to enhancing care delivery through AI-assisted diagnosis, visual AI has a broad impact on healthcare. By building devices and tools that can learn, …

Efficacy Of 0.3% Cannabidiol (Cbd) Oral Paste For Treatment Of Recurrent Aphthous Ulcers, Fuengboon Talkijkul

Chulalongkorn University Theses and Dissertations (Chula ETD)

0.1% Cannabidiol (CBD) was reported to be suitable as an alternative management for Recurrent Aphthous Ulcers (RAU) due to its analgesics and anti-inflammatory effects. This study aimed to examine 0.3 % CBD when compared to 0.1% CBD, 0.1% Triamcinolone Acetonide (TA) oral paste and pure oral paste in the treatment of RAU. For safety investigations, 100 healthy subjects were examined for allergic reaction to 0.3% CBD oral paste compared to pure oral paste, then 50 healthy subjects were evaluated for local and systemic effects of 0.3% CBD oral paste in which blood tests were performed before drug application and seven …

Epidemiology Of Recurrent Herpes Labialis Among Dentistry Students: A Cross-Sectional Survey In Egypt, Sara Abdelwahed, Dalia Ghalwash, Al Hassan Diab

Dentistry

Aim: Recurrent herpes labialis (RHL) is a common viral infection with significant psychosocial and clinical implications. Dental students are particularly vulnerable due to stress and frequent patient contact, yet data on their epidemiology in Egyptian cohorts are scarce. The study aimed to determine the prevalence, recurrence patterns, and associated risk factors of RHL among dentistry students in Egypt. Materials and Methods: A cross-sectional survey was conducted among 559 dentistry students at the British University in Egypt. A structured, self-administered questionnaire captured sociodemographic data, history of RHL episodes, frequency, severity, and triggering factors. Data were analyzed using descriptive statistics and Chi-square …

Effect Of Green Synthesized Silver Nanoparticles Using Pisum Sativum Peel Aqueous Extract On Oral Squamous Cell Carcinoma, Oral Epithelial Cells And Fibroblasts Cell Lines, Mai Hafez

Dentistry

No abstract provided.

Pathological Changes In Soft Tissues Associated With Radiographically Normal Impacted Teeth: A Critical Update And Meta-Analysis, Adesh S. Manchanda M.D.S., Ramandeep S. Narang M.D.S., Komaldeep Kaur Sandhu B.D.S

The New York State Dental Journal

The purpose of the study was to conduct a retrospective analysis of histopathological diagnosis of all pericoronal tissues associated with impacted teeth and to correlate it with a hypothetical classification of pericoronal follicular space to improve our clinical management of treating impacted teeth. Materials and Method. The study was carried out in the Department of Oral and Maxillofacial Pathology at Sri Guru Ram Das Institute of Dental Sciences, Amritsar. Data revealed that during a 12-year period, 1,268 patients reported with a pericoronal follicular space associated with the crown of an unerupted tooth, which was subsequently submitted for histopathological evaluation. Panoramic …

Subgingival Microbiomes Of Healthy And Periodontitis Subjects, Tareq Abdulrasoul

Theses and Dissertations

Background: Periodontitis is a common chronic inflammatory disease triggered by the dysbiosis of the subgingival microbiome. 16s rRNA sequencing has been used to profile the subgingival plaque samples in healthy and periodontitis subjects. Here, we have collected subgingival plaque samples from subjects and analyzed the microbiome profile from 16s rRNA sequencing. We hypothesized that periodontitis patients will have a different subgingival microbiome profile than that of healthy subjects.

Methods: Subgingival plaque samples were collected from periodontitis and healthy subjects who were indicated for periodontal surgeries (osseous resective and regenerative surgery for periodontitis patients or crown lengthening for healthy …

The Usual Suspects: A Review Of Common Dysbiosis Of The Human Mouth, And The Associated Microbial Species, Sophie Katherine Shields

Honors Theses and Capstones

The mouth, often referred to as the oral cavity in scientific literature, is described as the second most diversely populated microbiome in the human body, only after the gut. The cavity’s temperature, abundant water, high nutrient levels, and diversity of sites are all critical factors that make the oral cavity a space booming with life. The mouth harbors over 700 species of bacteria, in addition to numerous fungi, viruses, and protozoa species. Together, when working in harmony, these species provide critical supports to the functions of the human body. When dysbiosis occurs, however, the overgrowth of a single species may …

Oral Lesion As The Initial Presentation In The Diagnosis Of Histiocytosis X: A Case Report With 16-Month Follow-Up, Wassim Al Manhal, Georgio Saad, Charbel Anka, Valerie Aftimos, Michael Daccache, Sophie Abi Raad, Georges Boujaoude

International Arab Journal of Dentistry

Introduction: Langerhans Cell Histiocytosis (LCH) is a rare neoplastic disease that comes from the abnormal proliferation of Langerhans cells (LCs). It presents with a broad clinical spectrum, varying from involvement of a single organ system to multisystem disease, and frequently affects children, although cases in adults have been reported. Oral manifestations of LCH are non-specific and may mimic common periodontal conditions, posing a diagnostic challenge for dental practitioners.

Case Presentation: A 63-year-old female patient presented with complaints of periodontal problems. She was initially diagnosed with periodontitis, but symptoms persisted despite treatment, prompting a referral for further evaluation. Histopathological …

Development Of A Streptococcus Mutans Biofilm Model On A Typodont Platform To Investigate Its Dynamics In Orthodontics, Hibah Chughtai

Theses & Dissertations

Introduction: Biofilm formation plays a significant role in dental health, resulting in plaque accumulation, which can lead to caries and oral diseases. Streptococcus mutans (S. mutans) is a key bacterium involved in this process. The goal of this study was to establish a protocol for the development of an S. mutans biofilm on dental typodont teeth to analyze the effects of orthodontic brackets on biofilm formation. Understanding these dynamics is critical for developing strategies to mitigate biofilm accumulation during orthodontic treatment. Methods: S. mutans biofilms were cultivated under three conditions: 96-well tissue culture plates, S. mutans inoculated non-bracketed …

Histomorphometric Assessment Of Vibrational Forces On The Extended Midpalatal Suture, Aylin Pasaoglu Bozkurt, Özge Özdal Zincir, Asli Emincik

Journal of Dentistry Indonesia

Objective: This study determined the effects of vibrational forces on bone formation in the retention period of an expanded mid-palatal, histomorphometric suture in a rat model. Methods: Twenty-four 7–8- to 8-week-old male Wistar rats weighing 190.25 ± 15.35 g were separated into groups: only expansion (G1), expansion and 30 Hz vibration application (G2), and expansion and 111 Hz vibration application (G3). After 5 days of expansion, there were 12 days of retention. All animals were sacrificed, and their premaxilla were dissected. A histological examination evaluated the number of osteoblasts, osteoclasts, and capillaries, the amount of mineralized area, and …

Role Of Vitamin E And Vitamin A On Severity Of Oral Mucositis Caused By Chemotherapy - A Randomized Double-Blind Cross-Over Clinical Trial, Hossein Gholami, Tahereh Ahrari Roodi, Mohamad Amir Mohamadifard, Leili Alizadeh

Journal of Dentistry Indonesia

Objective: This study aimed to evaluate the efficacy of these vitamins in reducing chemotherapy-induced oral mucositis through a randomized, double-blind, cross-over clinical trial. Methods: This study involved 20 participants, primarily female (70%), with an average age of 52.2 years. Participants first received oral vitamin E and A with chemotherapy, followed by a placebo. The severity of mucositis and pain responses were assessed at the start of the study and at 7-, 14-, and 21-day post-treatment initiation. Data analysis was performed using SPSS software with a significance level of 0.05. Results: Twenty patients,14 (70%) females, with a mean …

Treatment Of Odontogenic Cysts Using A Minimally Invasive Approach: A Case Series From Vietnam, Minh Hang Luong, Vo Truong Nhu Ngoc, Tien Dat Cung, Hau Bau Tran, Quang Minh Luu, Huu Huynh Nguyen, Thao Phuong Tran

Journal of Dentistry Indonesia

This study aims to evaluate the effectiveness of decompression as a treatment approach for radicular cysts in five pediatric patients. Case report: 5 pediatric patients with five cystic lesions from 6 to 11 years old diagnosed with radicular cysts were treated by decompression. Clinical and radiograph data from pre- and post-surgery were collected and analyzed. Complete resolution of all cystic lesions and simultaneous eruption of impacted teeth within the cyst were managed. The mean follow-up time is 25.6 months, and no recurrences were observed. Conclusion: Decompression should be considered a preferred treatment for cystic lesions in children, as it has …

Water Fluoridation: The Evidence Behind The Risk Of Fluoride Use, Margherita Fontana D.D.S., Ph.D., Carlos González-Cabezas D.D.S., M.S.D., Ph.D., Livia Tenuta D.D.S., M.Sc., Ph.D.

The Journal of the Michigan Dental Association

The debate surrounding fluoride use for caries control has intensified due to recent events, including a National Toxicology Program (NTP) report and a court ruling mandating EPA action on fluoride levels in tap water.

Despite concerns about fluoride's potential neurodevelopmental impact at high concentrations, current evidence shows no adverse effects at the recommended levels of 0.7 ppm in U.S. community water fluoridation programs. While studies in regions with endemic fluorosis suggest an association between high fluoride exposure and lower IQ, methodological limitations undermine causal conclusions.

Global and U.S. health authorities, including the WHO and ADA, reaffirm the safety and efficacy …

Multiple Factors Regulate The Expression Of Sufcdsub In Streptococcus Mutans, Kassapa Ellepola, Lauren C. Guillot, Bradley Comeaux, Yiran Han, Jessica K. Kajfasz, Jacob P. Bitoun, Grace Spatafora, Jose A. Lemos, Zezhang T. Wen

School of Dentistry Faculty Publications

Introduction: The sufCDSUB gene cluster, encoding the sole iron-sulfur (Fe-S) cluster assembly system in S. mutans, was recently shown to be up-regulated in response to oxidative stressors and Fe limitation. Methods: In this study, luciferase reporter fusion assays, electrophoretic gel mobility shift assays (EMSA) and in vitro transcription assays (IVT) were used to dissect the cis- and trans-acting factors that regulate the expression of sufCDSUB. Results and discussion: Results showed deletion of perR, for the only Fur-family transcriptional regulator in S. mutans, resulted in > 5-fold increases in luciferase activity under the control of the sufCDSUB promoter (P < 0.01), as compared to the parent strain, UA159 when the reporter strains were grown in medium with no supplemental iron. Site-directed mutagenesis of a PerR-box in the promoter region led to elevation of the reporter activity by >1.6-fold (P < 0.01). In an EMSA, recombinant PerR (rPerR) was shown to bind to the cognate sufCDSUB promoter leading to mobility retardation. On the other hand, the reporter activity was increased by > 84-fold …

Revolutionizing Mandibular Osteoblastoma Treatment: The Power Of Computer-Assisted Virtual Surgical Planning, Leon Liu, Jason E. Portnof, Mullar Zakher Dds, Sandra Khuu Dmd, Renee Reich Dds

HCA-NSU MD Research Day

Clinical Abstract Introduction. Osteoblastomas are benign primary bone tumors that rarely arise in the jawbones. Often displaying features that make them difficult to discern from other bone-forming lesions, osteoblastomas may be aggressive in nature, making their expeditious diagnosis and detection crucial to maximize functional and aesthetic outcomes. Although mandibular osteoblastomas are traditionally treated with surgical excision, this paper explores the effectiveness of a computer-assisted approach with use of CBCT scans, virtual planning, and fabrication of custom surgical guides as a means to effectively plan proper resection of the defect. Case Description. This case series presents the diagnostic methods and surgical …

N Y State Dent J November 2024

The New York State Dental Journal

In the November 2024 issue, the reader will find the following feature articles:

• NYS Workers' Compensation & No-Fault Cases: The Good, the Bad, and the Ugly
• Social Media Use by Dental Students in Dental Education
• Guidelines for Interproximal Enamel Reduction (IPR)
• Exophytic and Focally Ulcerated Mass on the Mandibular Gingiva

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.

Exophytic And Focally Ulcerated Mass On The Mandibular Gingiva, Abrar Shamim D.D.S., M.A., Scott Peters D.D.S., Shahid R. Aziz D.M.D., M.D., Facs, Frcsed, Gregg Jacob D.M.D., Facs

The New York State Dental Journal

The pyogenic granuloma is a benign vascular proliferation which may present either on the skin or intraorally. While the majority of oral pyogenic granulomas remain less than 1 cm in size, they can grow to large sizes if care is neglected. Herein, we report case of a large pyogenic granuloma on the mandibular alveolar ridge gingiva which grew to 10x10cm in size due to failure to seek treatment.

Oral Manifestations Of The Dengue Virus, Griffin S. Eisele, Roman E. Brown Bs, Kristi Soileau Dds, Med, Mshce, Facd, Ficd

New Orleans Dental Association News

Dengue Fever, caused by the DENV virus, is a growing health concern, especially in arid regions. The disease presents oral symptoms that dentists must recognize for timely diagnosis. Dental professionals should exercise caution during surgical procedures due to potential hemorrhagic complications. Early identification and management of oral manifestations can prevent severe outcomes.