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Articles 571 - 591 of 591
Full-Text Articles in Dentistry
An In Vitro Comparison Of Shear Bond Strength Between Two Orthodontic Light-Curable Adhesive Pastes, Stephanie Becker
An In Vitro Comparison Of Shear Bond Strength Between Two Orthodontic Light-Curable Adhesive Pastes, Stephanie Becker
Graduate Theses, Dissertations, and Problem Reports
Background and Objectives: A relatively new light-cure orthodontic adhesive BracePaste® can fluoresce under UV light to assist in cleaning up excess flash after bonding. Complete removal of excess resins around the bonded brackets may minimize excessive loss of enamel upon debonding. The objective of this study was to determine the shear bond strength of BracePaste compared to that of the conventional “Transbond XT” adhesive. Additionally, enamel and bracket interfaces were examined to determine the location of bond failure and the tooth surfaces were visually examined to assess severity of enamel marks and the presence of remaining adhesives on the …
Effect Of Pad Design And Bracket Manufacturing Method On Bracket Bond Strength, Dustin Osborne
Effect Of Pad Design And Bracket Manufacturing Method On Bracket Bond Strength, Dustin Osborne
Graduate Theses, Dissertations, and Problem Reports
Objective: The objective is to determine if there is a significant difference in shear bond strength and debonding characteristics between one-piece metal brackets made by metal injection molding (MIM) and multi-piece metal brackets made by machining then soldering/brazing with differing pad designs. Methods: A total of thirteen metal orthodontic brackets manufactured by 8 different companies were divided into two groups: one-piece MIM and multi-piece brackets. Each group consisted of 10 brackets for a total of 130 brackets. Brackets were bonded to stainless steel tubes with a universal bonding technique. Samples were tested on the universal Instron testing machine to measure …
Covid-19 And Oral Health Conditions, American Dental Association
Covid-19 And Oral Health Conditions, American Dental Association
News Releases
This collection includes standard news releases, information kits and other documents distributed for publicity, information, announcements of events, etc. as issued from the ADA. Items included in this collection are archival and any costs, links, contact information, or other figures may be out of date. Please contact the ADA to verify information.
New Survey Finds Stress-Related Dental Conditions Continue To Increase, American Dental Association
New Survey Finds Stress-Related Dental Conditions Continue To Increase, American Dental Association
News Releases
This collection includes standard news releases, information kits and other documents distributed for publicity, information, announcements of events, etc. as issued from the ADA. Items included in this collection are archival and any costs, links, contact information, or other figures may be out of date. Please contact the ADA to verify information.
Study Finds Low Rate Of Covid-19 Among Dental Hygienists, American Dental Association
Study Finds Low Rate Of Covid-19 Among Dental Hygienists, American Dental Association
News Releases
This collection includes standard news releases, information kits and other documents distributed for publicity, information, announcements of events, etc. as issued from the ADA. Items included in this collection are archival and any costs, links, contact information, or other figures may be out of date. Please contact the ADA to verify information.
Chemical, Physical, And Antibacterial Properties Of Contemporary Pulp Capping Materials, Yu-Yin Lin
Chemical, Physical, And Antibacterial Properties Of Contemporary Pulp Capping Materials, Yu-Yin Lin
All ETDs from UAB
The purpose of this project was to compare the chemical, physical, and antibacterial properties of right contemporary direct pulp capping materials. The material categories included in this study were calcium hydroxide (Dycal, Lime-Lite and Ultra-Blend plus), calcium silicate (MTA Angelus, Biodentine, TheraCal LC), calcium aluminate (Ceramir Protect LC), and resin ionomer (Bio-Cap). Calcium release and pH changes were measured via a calcium ion-selective electrode (Vernier Company) and pH sensor (Vernier Company) respectively, after specimens were immersed in 36.8oC deionized water for 1, 7, 28 and 90 days. Water solubility was calculated with weight loss of the specimens from 0 to …
The Effects Of Implantoplasty On Implant Design Characteristics And Mechanical Strength, Peter Nasseh
The Effects Of Implantoplasty On Implant Design Characteristics And Mechanical Strength, Peter Nasseh
All ETDs from UAB
Implantoplasty is defined as the mechanical removal of the implant threads and the macroscopically rough implant surface. Clinical outcomes such as probing depth and bleed-ing on probing measurements were shown to improve significantly after implantoplasty and peri-implant bone stability was achieved in the majority of the cases.This in-vitro study aims to investigate the effects of implantoplasty on the implant’s maximum compressing force and the type of failure that occurred on different implant sys-tems with different sizes, materials, collar designs and prosthetic connections. A total of 132 screw-shaped titanium implants from different manufacturers (Bi-oHorizons, Zimmer Biomet, and Nobel Biocare) and different …
Evaluation Of Antimicrobial Effect Of Licorice Extrcat Agiasnt Oral Microorganisms, Roshanak Rastegar
Evaluation Of Antimicrobial Effect Of Licorice Extrcat Agiasnt Oral Microorganisms, Roshanak Rastegar
All ETDs from UAB
Introduction: The causative factors of dental caries have been studied for many years, however, preventing the formation of dental caries remains an elusive task. Microorganisms have been the focal point of numerous studies as a prime cariogenic factor. Streptococcus mutans and Candida albicans have been frequently co-isolated from dental biofilm in patients with early childhood caries (ECC) and studies have demonstrated the synergistic effects of these two microorganisms in promoting tooth demineralization. Acid and glucan production, which are two virulence factors produced by S. mutans that mediate biofilm formation and tooth decay, have been shown to be promoted during co-colonization …
Comparison Of The Condyle-Fossa Relationship And Resorption Between Patients With And Without Juvenile Idiopathic Arthritis (Jia): A Retrospective Three-Dimensional Cone-Beam Computed Tomography Study, Ahmet Arif Celebi
All ETDs from UAB
Introduction: The most common disease in pediatric rheumatology is juvenile idiopathic arthritis (JIA). JIA is considered to be an autoimmune disease with an onset before the age of 16. The temporal mandibular joint (TMJ) has been reported to be involved in up to 87% of patients with JIA. Even though much research has been conducted on JIA, limited research has studied to understand its effect on the condyle-fossa relationship and to evaluate resorption amount on condyle by using a scoring system. Aim: The purpose of this study was (1) to evaluate the anatomical features of the glenoid fossa, (2) to …
Clinical, Radiographic, And Histomorphometric Outcomes Following Ridge Preservation Using Leukocyte- And Platelet-Rich Fibrin (L-Prf) And Freeze-Dried Bone Allograft (Fdba) Layered Technique: A Prospective, Randomized Clinical Trial, Geisy Galviz
All ETDs from UAB
Objective: The present randomized controlled clinical trial aims to evaluate clinically, radiographic, and histologically the efficacy of L-PRF in combination with FDBA either in a homogeneous mixture or using a layered technique in improving quantity and quality of new vital bone formation and alveolar ridge dimensional stability in comparison to LPRF alone for ridge preservation after tooth extraction. Materials and Methods: Twentythree patients successfully completed the study. They were randomized to receive either L-PRF/FDBA layered technique (LAY), L-PRF/FDBA homogeneous mixture (MIX), or L-PRF alone. After minimally traumatic tooth extraction, direct clinical assessment and a Cone-Beam Computed Tomography (CBCT) scan were …
The Effect Of Egf On Vegf Expression On Submandibular Salivary Gland Of Albino Rats Receiving Doxorubicin, Mohamed Shamel, Mohamed Mansy, Rabab Mubarak
The Effect Of Egf On Vegf Expression On Submandibular Salivary Gland Of Albino Rats Receiving Doxorubicin, Mohamed Shamel, Mohamed Mansy, Rabab Mubarak
Dentistry
Background: Vascular endothelial growth factor (VEGF) has two prominent biological effects of inducing mitogenesis and migration of vascular endothelial cells and to produce permeability on the microvasculature. Epidermal growth factor (EGF), known by its mitogenic activity on different types of cells, could induce the proliferation and differentiation of the epithelial cells and stimulate its regeneration. Doxorubicin (DXR) is a widely used anticancer drug and is one of most commonly used chemotherapeutic drugs, however it may cause some serious complications such as toxicity in various tissues in the body. Aims: The present study aims to investigate the effect of EGF on …
What Do Patients Use For Treating Their Oral Ulcers? And How Do These Treatments Affect Their Quality Of Life?, Enji Ahmed Mahmoud, Ayat Gamal Abdel-Nasser, Mai Zakaria, Sohair Gaafar
What Do Patients Use For Treating Their Oral Ulcers? And How Do These Treatments Affect Their Quality Of Life?, Enji Ahmed Mahmoud, Ayat Gamal Abdel-Nasser, Mai Zakaria, Sohair Gaafar
Dentistry
Objectives: Oral ulceration forms a major category of oral lesions. Due to its effect on the quality of life, the patients seek treatment using various substances. This study investigated the types of treatments used by a sample of patients having all types of oral ulcers and its positive and negative effects on the patients' lives. Methods: This cross-sectional study included patients having different types of oral ulcers. Participants provided information about their previous treatments, the source of recommendation of its use and side effects linked to them. They filled the oral health impact profile-14 questionnaire to report the change in …
The Effect Of Different Drilling Protocols On Bone Healing Around Dental Implants., Sara Fikry, Amr Amin Ghanim, Hisham El Sheikh, Omar El Sergany
The Effect Of Different Drilling Protocols On Bone Healing Around Dental Implants., Sara Fikry, Amr Amin Ghanim, Hisham El Sheikh, Omar El Sergany
Dentistry
Materials and Methods: 20 patients with kennedy class III modification 1 edentulous areas were recruited for this study and divided into two groups; Control group received implants with conventional osteotomy preparation following standard drilling protocol (speed= 1200 rpm) with torque of 30N and sufficient saline irrigation, while Study group received implants with osteotomy preparation following a low speed drilling protocol (speed < 200 rpm) without irrigation and a torque of 50 N. Cone Beam CT was used to evaluate bone height and density around the implants at 3, 6 and 12 months after insertion. Implant primary stability was evaluated using Ostell by Resonance Frequency Analysis. Results The results showed no significant difference between bone height changes and densities in the control and study groups. Implants primary stability also showed no significant difference in ISQ values between both groups. Conclusion Biologic drilling is a promising implant drilling protocol with a potential to insert implants showing successful osseointegration and acceptable bone changes.
Evaluation Of Anti-Cancer Effect Of Different Concentrations Of Black Raspberries Extract On Oral Squamous Cell Carcinoma Cell Line (In Vitro Study), Sara Abdelwahed
Evaluation Of Anti-Cancer Effect Of Different Concentrations Of Black Raspberries Extract On Oral Squamous Cell Carcinoma Cell Line (In Vitro Study), Sara Abdelwahed
Dentistry
Background: Black Raspberry has a wide range of pharmacological and therapeutic aspects including anti-inflammatory and antioxidant activities. Moreover, the effect of Black Raspberry has been studied in many cancers such as human cervical, esophageal and colorectal cancer and showed cytotoxic and anti-proliferative effects against these types of cancer. Aim: To identify the possible anti-cancer effect of Black Raspberry on Oral Squamous Cell Carcinoma cell line. Material and methods: Human tongue squamous cell carcinoma cell line was divided into 3 groups: one control group, second group treated with Black Raspberry, and the third group treated with Doxorubicin, each of the two …
An Airway Analysis Of Patients Diagnosed With Juvenile Idiopathic Arthritis Compared To A Control Group, Matt Gibson
An Airway Analysis Of Patients Diagnosed With Juvenile Idiopathic Arthritis Compared To A Control Group, Matt Gibson
All ETDs from UAB
Introduction: The temporomandibular joint (TMJ) is affected in 30-45%% of Juvenile Idiopathic Arthritis (JIA) patients, with all JIA subtypes at risk for TMJ involvement. JIA patients with TMJ involvement may present with altered craniofacial morphology, including micrognathia, mandibular retrognathia, a hyperdivergent mandibular plane angle, and skeletal anterior open bite. These features are also commonly present and associated with non-JIA pediatric patients with obstructive sleep apnea (OSA). Materials and Methods: The study comprised of a group of 32 JIA patients and a group of 32 healthy control subjects. CBCT images were taken for all patients and were imported into Dolphin Imaging …
Evaluation Of The Bonding Strength Between Different Materials And Resin Cement Used For Cementing A Fixed Complete Prosthesis, Vinita Pankaj Ved
Evaluation Of The Bonding Strength Between Different Materials And Resin Cement Used For Cementing A Fixed Complete Prosthesis, Vinita Pankaj Ved
All ETDs from UAB
Statement of Problem: When a situation of full-arch edentulism is observed, CAD-CAM designed prosthesis have improved properties in comparison to conventional fixed dentures. Long term longevity of the prosthesis includes not only strength of the framework, but also enhanced bonding strength between the framework and implant coping. Purpose: To investigate the bonding strength between different polymer materials used for a monolithic metal-free fixed hybrid denture luted to Ti-Base using the push-out strength test. Materials and Methods: The experimental design consists of 20 specimens for each group, with a total of 7 groups (total = 140). The materials used in the …
External Apical Root Resorption In Asian Orthodontic Patients In Alabama, Najd Aswad
External Apical Root Resorption In Asian Orthodontic Patients In Alabama, Najd Aswad
All ETDs from UAB
The main goals of orthodontic treatment are to achieve a harmonious dentalocclusion and enhance the patient’s dentofacial appearance. External Apical Root Resorption (EARR) is a side effect of orthodontic treatment1. It results in the permanent loss of tooth structure from the root apex2. EARR is a multifactorial condition which includes patient related and treatment related risk factors. Patient-related factors include genetics, severity of malocclusion, tooth-root morphology, systemic factors, density of alveolar bone, root proximity to cortical bone, previous exposure to trauma, patient age and sex. Orthodontic treatment related risk factors include treatment duration, amount of force and mechanics used, direction …
Midpalatal Suture Maturation Stage Evaluation In Young Adults, Anna Maria Betlej
Midpalatal Suture Maturation Stage Evaluation In Young Adults, Anna Maria Betlej
All ETDs from UAB
Rapid palatal expansion (RPE) is a gold standard treatment for posterior unilateral and bilateral crossbites or limited buccal overjet in patients with constricted maxilla. Midpalatal suture fusion is a limitation for obtaining the skeletal results and avoiding dental side effects. It is generally believed that midpalatal suture interlock increases significantly after the pubertal growth spurt. However, in the literature there are reported cases of successful midpalatal suture split in older adults. Individual cone-beam computed tomography (CBCT) assessment of midpalatal suture maturation was proposed by Angelieri et al. Since RPE treatment approach is commonly used it is important to understand the …
Evaluating The Effects Of Silver Diamine Fluoride On Microbiome Analysis Of Carious Lesions, Karol Fernanda Bryant
Evaluating The Effects Of Silver Diamine Fluoride On Microbiome Analysis Of Carious Lesions, Karol Fernanda Bryant
All ETDs from UAB
ABSTRACT Purpose: The purpose of this study was to evaluate changes in the oral bacterial flora before and after application of 38% Silver Diamine Fluoride (SDF, manufacturer and city/state) to carious lesions. Methods: Fifteen children with at least one cavitated carious tooth and one healthy tooth were enrolled and following examination, a carious tooth was selected to receive SDF treatment. Prior to SDF treatment, two supragingival plaque samples were obtained (using sterile cotton swabs, then storage in transport fluid and frozen at -80oC until DNA extraction) at the first appointment, one carious tooth, another from a non-carious tooth. At the …
Efficacy Of Lower Incisor Intrusion Using Clear Aligners, Cason Roberson
Efficacy Of Lower Incisor Intrusion Using Clear Aligners, Cason Roberson
All ETDs from UAB
Objective: The primary objective of this study is to evaluate pre and posttreatment lateral cephalometric radiographs on patients treated with Invisalign by the same orthodontist where lower incisor intrusion was prescribed and to determine the amount of true lower incisor intrusion achieved during treatment. Methods: This retrospective case series study included 48 patients with an overbite exceeding 2mm, who were treated with Invisalign clear aligner therapy, and whose Clincheck treatment plan included lower incisor intrusion. The mean age of the study group was 27 years with 14 (29%) of the subjects being male and 35 (71%) being female. The mean …
Impact Of Systemic Pathologies On Increased Risk Of Endodontic Disorders, Jayla Mercer
Impact Of Systemic Pathologies On Increased Risk Of Endodontic Disorders, Jayla Mercer
Honors Undergraduate Theses
The purpose of this study is to evaluate possible factors that have the potential to contribute to increased risk for endodontic disease. Some of the factors that were analyzed in this study include current diagnosis with systemic disease, particularly diabetes and cardiovascular disease. Association between these factors, treatment outcome, and prognosis have also been analyzed. Since the topic of endodontic medicine and its association with systemic disease is not fully explored in the literature, it is critical to conduct studies to further contribute to this topic. This study analyzed clinical data from patients who received treatment for endodontic disease between …