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Comparison Of Color Accuracy Of Commercial Digital Cameras And Cellular Phonecameras For Laboratory Purposes, Adeline W. Yuh
Comparison Of Color Accuracy Of Commercial Digital Cameras And Cellular Phonecameras For Laboratory Purposes, Adeline W. Yuh
Graduate Theses, Dissertations, and Problem Reports
Accurate shade matching of indirect restorations as well as accurate communication of that information to the laboratory technician is one of the most challenging tasks in the dental office. The objective of this study was to compare the color accuracy of commercial digital cameras used in the dental office with cellular phone cameras. Twenty four color patches and 4 shade tabs on a new Vita classic shade guide (A2, B2, C2, and D2) were photographed 3 times with 4 different cameras: The Canon EOS 30D, the Nikon D700, the iPhone 5 and the Galaxy S3. For the light source, a …
A Preliminary Study Evaluating Potential Probiotic Use In Endodontics, Khaled Seifelnasr
A Preliminary Study Evaluating Potential Probiotic Use In Endodontics, Khaled Seifelnasr
Graduate Theses, Dissertations, and Problem Reports
Introduction: The main goal of endodontics is the prevention of apical periodontitis. This condition is the result of persistent pathogenic microorganisms such as Enterococcus faecalis (E. f) and Candida albicans (C. a) remaining in the root canal systems of teeth, and the ability of those organisms to directly cause acute and chronic inflammation in the periapical tissues. The concept of the use of probiotics has not yet been evaluated in addressing endodontic disease, but probiotics have proven successful in treating periodontal disease. Taking these findings into account, this preliminary work was performed to evaluate the possible effectiveness of a probiotic …
Comparing Flexural Strength Of Acrylic Processed By Three Different Techniques, Ankit Patel
Comparing Flexural Strength Of Acrylic Processed By Three Different Techniques, Ankit Patel
Graduate Theses, Dissertations, and Problem Reports
Statement of problem: Acrylic resin removable dentures are susceptible to fracture after periods of clinical use. There are many predisposing clinical factors for these denture fractures. Specifically, acrylic resin fractures due to poor flexural strength has historical been a problem with complete denture.;Objective: The purpose of this in vitro study was to measure and compare the flexural strength of denture base acrylic resin processed by three different techniques: Conventional Pressure-Pack (compression molded) method, Injection molded (SR-Ivocap), and Computer Aided Design - Computer Assisted Manufacturing (CAD/CAM) (AvaDent(TM) Digital Dentures).;Methods: A total of 45 specimens (64 mm X 10 mm X varying …
Cbct Evaluation Of Condylar Changes In Children With Unilateral Posterior Crossbites With A Functional Shift, Lance Pittman
Cbct Evaluation Of Condylar Changes In Children With Unilateral Posterior Crossbites With A Functional Shift, Lance Pittman
Graduate Theses, Dissertations, and Problem Reports
Introduction: The unilateral posterior crossbite with a functional shift is one of the most common early adolescent malocclusions. It is caused by a transversely deficient maxilla, relative to the mandible, and results when the mandible shifts to one side to so the teeth can maximally interdigitate. This shift is thought to cause the contralateral condyle to move anteriorly, inferiorly, and medially within the TMJ. Much attention has been given recently to the affects of this functional shift on the condyles. An attempt is being made to determine if pathological position of the condyles can cause condylar signs or symptoms similar …
Volumetric, Planar And Linear Airway Comparison After Maxillomandibular Advancement Surgery, Deepa Vyas
Volumetric, Planar And Linear Airway Comparison After Maxillomandibular Advancement Surgery, Deepa Vyas
Graduate Theses, Dissertations, and Problem Reports
Background and Objectives: Treatment of sleep apnea can be accomplished using both non-surgical and surgical methods. Surgical treatment is further classified into phase I and II surgery. When phase I treatment fails, orthognathic surgery is judged to be the subsequent step in treating these patients. Orthognathic surgery is considered phase II treatment and can consist of a maxillomandibular advancement (MMA)1-11. Until recently, most of the data gathered on patients how have had a maxillomandibular advancement has been completed using lateral cephalograms. The rationale for this study is to gain a better understanding of the alteration in linear, planar and volumetric …
Formulation And Evaluation Of A Novel Irrigant For The Disinfection Of Root Canals Using A Candida Albicans Biofilm Model, Dustin S. Reynolds
Formulation And Evaluation Of A Novel Irrigant For The Disinfection Of Root Canals Using A Candida Albicans Biofilm Model, Dustin S. Reynolds
Graduate Theses, Dissertations, and Problem Reports
An important goal of root canal therapy is elimination of microorganisms which are usually organized into a biofilm phenotype. Irrigants play an indispensable role in areas inaccessible to mechanical instrumentation. In this study, a novel endodontic irrigant was formulated composed of a penetrating solvent, 70% Dimethyl sulfoxide (DMSO), with a 1:1 molar ratio of an antibiotic (Clindamycin HCl) and antifungal agent (Nystatin). Nuclear Magnetic Resonance Spectroscopy (NMR) stability tests were conducted to prove the mixture was chemically stable. This study compared different concentrations of the novel irrigant to 6% sodium hypochlorite (NaOCl) using a C. albicans biofilm model. Furthermore, it …
Effect Of Delmopinol Hydrochloride On Endodontic Biofilm, Gabriel M. Holley
Effect Of Delmopinol Hydrochloride On Endodontic Biofilm, Gabriel M. Holley
Graduate Theses, Dissertations, and Problem Reports
Background: The ideal goal of endodontic therapy is to decrease the microbial load within the root canal system followed by the placement of a hermetic seal of the apical portion of the root. Sodium hypochlorite (NaOCl) has long been considered the gold standard for disinfecting root canals, but, the presence of a persistent intraradicular biofilm in properly cleaned and shaped canals has led to the need of development for adjunct irrigant targeting these complex structures. Objectives: The purpose of this study was to compare the effects on the biofilm of NaOCl and delmopinol hydrochloride (DH), a new FDA approved oral …
The Effect Of Surgical Guides On Heat Generation During Guided Implant Surgery: An In Vitro Study, Safa Tahmasebi
The Effect Of Surgical Guides On Heat Generation During Guided Implant Surgery: An In Vitro Study, Safa Tahmasebi
Graduate Theses, Dissertations, and Problem Reports
Purpose: The purpose of this in vitro study was to evaluate the heat generated in bone by one implant drill system with and without using surgical drill guides. Temperature elevation during guided surgery was compared to that of conventional drilling in bovine femur specimens. Significant differences in temperature elevation between conventional osteotomy and guided surgical osteotomy were examined.;Materials and Methods: Conventional and Surgically guided osteotomies were performed in 117 randomized measurements with K type thermocouples in an in-vitro study using bovine cortical bone. Using an internally and externally irrigated implant system, intermittent drilling at 2- second intervals at a constant …
An Investigation Of The Accuracy Of A New Technique For Surgical Repositioning A Maxilla, Chad L. Westfall
An Investigation Of The Accuracy Of A New Technique For Surgical Repositioning A Maxilla, Chad L. Westfall
Graduate Theses, Dissertations, and Problem Reports
Objectives: The purpose of this study was to test the method of the Four Faces of Orthognathic SurgeryRTM in regards to surgical accuracy and the ability to transfer this method to an academic setting. Methods: An experimental group consisted of 15 patients from a university setting and 17 patients from a private practice setting. Lateral cephalograms were taken immediately prior to the orthognathic procedure and post-operatively within six weeks. Pre-surgical, post-surgical cephalograms, and the hand generated surgical predictions were collected from the sample. The differences of planned and actual changes to incision were then analyzed to determine whether or not …
Comparison Of Two Orthodontic Sealants In Prevention Of Enamel Demineralization : An In-Vitro And In-Vivo Study, Doyoung Choi
Comparison Of Two Orthodontic Sealants In Prevention Of Enamel Demineralization : An In-Vitro And In-Vivo Study, Doyoung Choi
Graduate Theses, Dissertations, and Problem Reports
Introduction: Enamel demineralization adjacent to orthodontic brackets is one of the risks associated with orthodontic treatment. Among the techniques utilized to prevent demineralization, application of orthodontic sealants is widely used to provide mechanical coating and fluoride release for the underlying enamel. The purpose of this study was to compare the efficacy in enamel protection during fixed orthodontic treatment in-vitro and in-vivo between two orthodontic sealant products; Opal Seal (Opal Orthodontics by Ultradent, South Jordan, UT) and Pro Seal (Reliance Orthodontic Products, Itasca, IL). The null hypothesis was that there would be no significant difference in protection against enamel demineralization between …
Epipathogenesis Of Caries: Analyses Of Family Structure, Fear, And Fatalism Upon World Health Organization Decayed, Missing, And Filled Teeth Severity In Appalachia West Virginia And Pennsylvania, R. Constance Wiener
Graduate Theses, Dissertations, and Problem Reports
Appalachian has many social, economic, and biologic factors impacting dental health over the life-course.;Purpose: This study examined dental caries experience and family structure, dental fear, and fatalism in West Virginia and Pennsylvania.;Method: Using a cross-sectional study design, 2002-2009 Center for Oral Health Research in Appalachia data were analyzed utilizing the World Health Organization definitions for caries experience, dichotomized into low and high. Three groups were studied: 1) children, 11-13 years (N=237); 2) adolescents, 14-17 years (N=191); and 3) adults, 18 years and above (N=1125). For multivariable model development, generalized estimating equations with exchangeable working structures accounted for family clusters.;Results. For …
A Retrospective Clinical Study To Evaluate Mineral Trioxide Aggregate (Mta) As A Direct Pulp Capping Agent In A One-Visit Protocol, Patrick J. Petley
A Retrospective Clinical Study To Evaluate Mineral Trioxide Aggregate (Mta) As A Direct Pulp Capping Agent In A One-Visit Protocol, Patrick J. Petley
Graduate Theses, Dissertations, and Problem Reports
The purpose of this study was to demonstrate the long-term success that can be achieved by the use of Mineral Trioxide Aggregate (MTA) as a pulp capping agent, demonstrate the simplicity of the procedure, and overcome the commonly held objections of cost, difficult handling characteristics, and the need for two appointments to complete the procedure.;A single visit protocol was utilized in the completion of forty-eight pulp cap procedures with twenty-seven procedures available for recall. The MTA pulp cap was covered with glass ionomer liner and then restored with a bonded composite or amalgam. Teeth were evaluated for sensitivity to percussion, …
Factors Affecting Orthodontic Adherence In Appalachia, Breana M. Phillips
Factors Affecting Orthodontic Adherence In Appalachia, Breana M. Phillips
Graduate Theses, Dissertations, and Problem Reports
Orthodontic intervention enhances not only esthetics and psychosocial health, but also improves the function of the human dentition. Many insurance programs now offer orthodontic coverage; however, proper adherence and good oral hygiene habits are poor among those Appalachian individuals undergoing orthodontic care. This research study was conducted to determine the contributing factors in poor orthodontic compliance in Appalachia. Investigators completed a retrospective chart review, assessing inactive orthodontic patients from 2007-2012 at a private practice in North Central West Virginia. The general dentist at this rural office practices both general dentistry, as well as, orthodontics. Information regarding demographics, form of payment, …
Predicting Emergency Dental Care Over A Decade: Investigating Dental Care-Related Fears In Symptomatic Treatment-Seeking Behavior, Cameron L. Randall
Predicting Emergency Dental Care Over A Decade: Investigating Dental Care-Related Fears In Symptomatic Treatment-Seeking Behavior, Cameron L. Randall
Graduate Theses, Dissertations, and Problem Reports
Avoidance of dental care, resulting from fear and anxiety, has major implications for oral and overall health. For instance, untreated oral disease may exacerbate cardiovascular disease and diabetes, among other systemic health concerns (Williams et al., 2008). In the USA, 5-10% of adults avoid necessary dental treatment because of dental care-related fear (Milgrom et al., 2009). The long-term goal of this project was to improve our understanding of psychosocial barriers to oral health care. Specifically, the study aimed to examine the relation between dental care-related fears, fear of pain, and dental beliefs in a rural, Appalachian population and to determine …
Ap Relationship Of The Maxillary Central Incisors To The Forehead In Adult Korean Females, Jung Mee Kim
Ap Relationship Of The Maxillary Central Incisors To The Forehead In Adult Korean Females, Jung Mee Kim
Graduate Theses, Dissertations, and Problem Reports
Objectives: To evaluate and compare the anteroposterior relationship of the maxillary central incisors to the forehead in adult Korean females with harmonious profiles and in adult Korean female orthodontic patients. Methods: Ninety five photographic images of adult Korean females with good facial harmony (control group) were compared with 95 photographs of adult Korean females seeking orthodontic treatment (study group). All images were of the face in profile with the maxillary central incisors and the forehead in full view. The images were imported into Adobe Photoshop(TM) and resized and rotated to the upright head position. Reference lines were constructed to assess …
The Occlusal Plane Inclination Relative To Craniofacial Form: A Cephalometric Investigation, Holly Eppard
The Occlusal Plane Inclination Relative To Craniofacial Form: A Cephalometric Investigation, Holly Eppard
Graduate Theses, Dissertations, and Problem Reports
Background Objectives: The occlusal plane has been given much attention throughout the orthodontic literature. Studies have shown that the occlusal plane inclination varies relative to vertical and sagittal skeletal discrepencies. The Six Elements of Orofacial Harmony does not address the occlusal plane inclination as a parameter in diagnosis and treatment planning despite its spatial influence on the position of the chin. The occlusal plane inclination is considered a critical factor in treatment planning for orthognathic surgery. The objective of this study was to systematically evaluate the inclination of the occlusal plane (Op°) relative to various skeletal and dental cephalometric parameters. …
Procera Titanium Milled Framework Surface Preparation Impact On Metal-Resin Implant Fixed Dental Prosthesis, A Clinical Model, William Todd Hegmann
Procera Titanium Milled Framework Surface Preparation Impact On Metal-Resin Implant Fixed Dental Prosthesis, A Clinical Model, William Todd Hegmann
Graduate Theses, Dissertations, and Problem Reports
Purpose: The purpose of this study is to compare and contrast the difference between airborne-particle abrasion and two common commercially available opaquers during shear testing of clinical models. Comparisons between the type of failure (adhesive, cohesive, or mixed) and surface analysis of the airborne-particle abraded samples will be evaluated.;Materials and Methods: 16 identical Nobel Procera titanium alloy frameworks were manufactured to fit a master titanium block fitted with four multi-unit abutments. Metal-resin implant fixed dental prosthesis were manufactured to test surface preparations. The variables between framework groups were airborne-particle abrasion and opaquer type in a split sample design. Test groups …
A Comparison Of Airway Dimensions Among Different Skeletal Craniofacial Patterns, Ronnie J. Sparks
A Comparison Of Airway Dimensions Among Different Skeletal Craniofacial Patterns, Ronnie J. Sparks
Graduate Theses, Dissertations, and Problem Reports
Background and Objectives: Much attention has been given to the association of craniofacial skeletal morphology, upper airway dimension, and respiratory function with patients suffering from obstructive sleep apnea. However, much of the information gathered on the aforementioned has been established with the use of 2-Dimensional lateral cephalometry. The objective of this study was to investigate upper airway dimensions among different skeletal patterns using cone-beam computed tomography (CBCT). Methods: A sample of 279 patients who seught orthodontic treatment at the University of Nevada Las Vegas School of Dentistry Department of Orthodontics was included in this study. Pre-treatment multi-slice CBCT scans of …
Ultrasonic Instrumentation Instruction In Dental Hygiene Programs In The United States, Sharon Lee Stemple Hinchman
Ultrasonic Instrumentation Instruction In Dental Hygiene Programs In The United States, Sharon Lee Stemple Hinchman
Graduate Theses, Dissertations, and Problem Reports
The purpose of this study is to determine the existence and extent of ultrasonic scaling instrumentation instruction in dental hygiene programs nationally. Currently, there is no research available defining a consensus of instruction for ultrasonic instrumentation in dental hygiene programs. An email survey was sent to all directors of dental hygiene programs in the United States (n=323). The response rate was 45%. No significant differences in methods or extent of instruction were found between associate and baccalaureate degree granting programs. Eighty-nine percent of programs introduce hand scaling prior to ultrasonic scaling instrumentation instruction. Students in 96% of the programs are …
Apical Leakage Of A New Root Canal Sealer, Nathan E. Beam
Apical Leakage Of A New Root Canal Sealer, Nathan E. Beam
Graduate Theses, Dissertations, and Problem Reports
A new endodontic root canal sealer, iRoot SP, has been introduced. This bioceramic root canal sealer claims to be a superior sealing and filling material for root canals. Although the manufacturer advocates the use of a single cone technique with this sealer, they state that it may also be used with lateral compaction and warm vertical condensation. The purpose of this study was to compare in vitro apical microleakage of iRoot SP root canal sealer to AH Plus sealer when used in conjunction with a single cone technique and lateral compaction technique.;Eighty six mesial roots of mandibular molar teeth with …
Automated Image Analysis Comparing Edta And Maleic Acid In Smear Layer Removal From Instrumented Human Posterior Root Canals, Lauren P. Namsupak
Automated Image Analysis Comparing Edta And Maleic Acid In Smear Layer Removal From Instrumented Human Posterior Root Canals, Lauren P. Namsupak
Graduate Theses, Dissertations, and Problem Reports
EDTA has long been the gold standard for smear layer removal in endodontics. Recently Ballal has suggested maleic acid as a more effective alternative to EDTA, but more research is needed before it can be used in clinical practice. This study focused on comparing EDTA to maleic acid when removing the smear layer from curved root canals in human posterior teeth. Fifty-one posterior teeth were randomly selected and assigned to three groups: 17% EDTA, 7% maleic acid, and a 0.9% saline control. The teeth were prepared using K-files to an ISO size 40 MAF, step-backed to an ISO size 60 …
Oral Cancer Screening Techniques Utilized By West Virginia Dental Hygienists, Ashlee B. Charnoplosky
Oral Cancer Screening Techniques Utilized By West Virginia Dental Hygienists, Ashlee B. Charnoplosky
Graduate Theses, Dissertations, and Problem Reports
Oral cancer has become a major public health problem. Health care professionals need to assume the responsibility of effectively screening all patients in their care for early signs of this disease. Too often, oral cancer is not diagnosed until it is in its later stages when treatment is not as effective. The late diagnosis contributes to the large number of deaths each year that could have been prevented had the patient had adequate screenings. Currently, there is no mandated law on providing oral cancer screenings.;The purpose of this study is to examine the oral cancer screening protocols utilized by practicing …
The Effects Of A Dental Team And An Oral Health Protocol On The Oral Health Of Residents Living In Long-Term Care Facilities, Stephanie F. Meredith
The Effects Of A Dental Team And An Oral Health Protocol On The Oral Health Of Residents Living In Long-Term Care Facilities, Stephanie F. Meredith
Graduate Theses, Dissertations, and Problem Reports
The oral health of residents living in long-term care facilities is poor. Dental teams and protocols need to be implemented for the facilities to help improve the oral health of the residents. The purpose of this study is to compare a long-term care facility that is implementing a dental team and protocol versus a facility that is not implementing a dental team and protocol. Oral examinations of 30 residents at each facility were conducted at baseline, one month and three month intervals. Data analyses were conducted using descriptive statistics and ANOVA 2x3 using SPSS software, to determine if any significant …
Ap Relationship Of The Maxillary Central Incisors To The Forehead In Adult White Males, Maggie S. Adams
Ap Relationship Of The Maxillary Central Incisors To The Forehead In Adult White Males, Maggie S. Adams
Graduate Theses, Dissertations, and Problem Reports
Objectives. To evaluate and compare the anteroposterior relationship of the maxillary central incisors to the forehead in adult white males with harmonious profiles and in adult white male orthodontic patients. Methods. One hundred and one photographic images of adult white males with good facial harmony (control sample) were compared with 97 photographs of adult white males seeking orthodontic treatment (study sample). All images were of the face in profile with the maxillary central incisors and the forehead in full view. The images were imported into Adobe Photoshop(TM) and resized and rotated to the upright head position. Reference lines were constructed …
Evaluation Of Retention Using Different Numbers And Position Of Attachments With Mini Dental Implant Overdentures, Amanda Mcpherson Canizales
Evaluation Of Retention Using Different Numbers And Position Of Attachments With Mini Dental Implant Overdentures, Amanda Mcpherson Canizales
Graduate Theses, Dissertations, and Problem Reports
Objectives. To collect data for the retentive capabilities of mini dental implants in several numbers and positions when used with the mandibular overdenture; and compare that information to previous studies on the dislodging forces of locator attachments.;Methods. Acrylic blocks representing the mandibular arch and a mandibular denture were laboratory fabricated in high impact denture acrylic resin (Lucitone 199). Five mini implants were placed in the mandibular block and associated housings were picked up into the mandibular denture block using fast set acrylic (Super T). The denture block was then attached, via the same fast set acrylic, to an aluminium plate …
Utilization Of Public Health And General Supervision Permits By Dental Hygienists In West Virginia, Lyndsey N. Gray
Utilization Of Public Health And General Supervision Permits By Dental Hygienists In West Virginia, Lyndsey N. Gray
Graduate Theses, Dissertations, and Problem Reports
The issue of oral health in individuals has emerged as an immediate concern for many states to address, especially West Virginia. Current statistics show dental caries to be the most common chronic disease of children which has led to the development of such programs as The West Virginia Oral health Plan for 2010--2015. Plans such as this aim to develop techniques to provide improved oral care for all populations.;The purpose of the study is to examine if dental hygienists in West Virginia are utilizing their general supervision permits and dental hygiene public health permits to provide treatment to patients in …
Effect Of A Modified Stepped Osteotomy On The Primary Stability Of Dental Implants In Type D4 Bone: A Cadaver Study, Chad M. Boustany
Effect Of A Modified Stepped Osteotomy On The Primary Stability Of Dental Implants In Type D4 Bone: A Cadaver Study, Chad M. Boustany
Graduate Theses, Dissertations, and Problem Reports
Purpose. The aim of this study was to examine the effect of an alternative surgical technique on endosseous dental implant stability parameters in Class D4 Bone. Significant differences between insertion torques (Ncm) produced by a conventional osteotomy verses a modified stepped osteotomy were examined. Significant differences between Implant Stability Quotients (ISQ) produced by a conventional osteotomy verses a modified stepped osteotomy were examined. Correlations between Hounsfield units (HU), Implant Stability Quotient (ISQ), and insertion torque (IT) were examined.;Materials and methods. Sixteen preserved cadaver heads were radiographically examined with a Toshiba AquilionRTM 64 Fast Whole Body Computerized Tomography (CT) Scanner. A …
Treatment Of Class Iii Malocclusion In The Primary And Early Mixed Dentition Using The Kiebach Appliance And Protraction Facemask, Erica W. Reed
Treatment Of Class Iii Malocclusion In The Primary And Early Mixed Dentition Using The Kiebach Appliance And Protraction Facemask, Erica W. Reed
Graduate Theses, Dissertations, and Problem Reports
Objectives. To evaluate the short and long-term results of using a Modified Hyrax Expander with Protraction Facemask at an early age. Methods. Twenty three patients were treated with Dr. Kiebach's Modified Hyrax Expander and Protraction Facemask at an early age. Lateral Cephalograms were taken at three time points: pre-treatment (T1), post-treatment (T2), and 2 years post-treatment (T3) and evaluated using cephalometric analysis. Results. Statistically significant results were found for all three time points: T2-T1, T3-T2, and T3-T1. The Palatal Plane, Mandibular Plane, and the Occlusal Plane were the only values to show non-significant results throughout the three time points. The …
Class Iii Correction Using An Inter-Arch Spring Loaded Module, Robert Vanlaecken
Class Iii Correction Using An Inter-Arch Spring Loaded Module, Robert Vanlaecken
Graduate Theses, Dissertations, and Problem Reports
Objectives. To determine the skeletal and dental changes seen in the sagittal, vertical, and angular directions in a group of patients who had undergone treatment with an inter-arch spring loaded module, the CS2000RTM appliance. Methods. The treatment group consisted of 30 patients treated in the private practice office of Dr. Michael Williams in Gulfport, MS, (15 males, 15 females) with an average pre-treatment age of 9.6 and post-treatment age of 10.9. The average treatment time for the pooled group studied was 1.3 years. Lateral cephalometric films were collected from pre-treatment records before treatment began and from post-treatment records after CS2000RTM …
Effectiveness Of Cetylpyridinium Chloride, Chlorhexidine Gluconate, Chlorine Dioxide, And Essential Oils Against F. Nucleatum, P. Gingivalis, S. Mutans And S. Sobrinus---A Biofilm Approach, Kristafer Lee Adkins
Effectiveness Of Cetylpyridinium Chloride, Chlorhexidine Gluconate, Chlorine Dioxide, And Essential Oils Against F. Nucleatum, P. Gingivalis, S. Mutans And S. Sobrinus---A Biofilm Approach, Kristafer Lee Adkins
Graduate Theses, Dissertations, and Problem Reports
Results of evaluating chemotherapeutic effectiveness have focused on planktonic, two-dimensional bacterial existence. Biofilms exist as three-dimensional structures which shelter bacteria deep within. Current research is needed to evaluate the effectiveness of various chemotherapeutics against bacteria residing inside of a biofilm. In order to do so, this study evaluated the effectiveness of four common chemotherapeutics (cetylpyridinium chloride, chlorhexidine gluconate, chlorine dioxide, and essential oils) against four bacteria (S. mutans, S. sobrinus, F. nucleatum and P. gingivalis) in both planktonic and biofilm modeled culture media. Data was obtained through the measurement of zones of inhibition (ZOI) surrounding test discs placed on experimental …