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The Effect Of Topical Fluorides On The Microleakage Of Sealants, N. Jared Nation
The Effect Of Topical Fluorides On The Microleakage Of Sealants, N. Jared Nation
Loma Linda University Electronic Theses, Dissertations & Projects
Purpose: The purpose of this study was to evaluate the possible microleakage found in two groups of sealants; a group bonded with a dentin bonding agent (DBA), and a group bonded without a DBA after exposure to a variety of topical fluorides.
Materials and Methods: Extracted, human molars were placed into 8 groups. Half of the groups contained sealants that were bonded with a DBA and the other remaining groups of sealants were bonded without a DBA. There were two control groups, one that had sealants bonded with a DBA and the other had sealants bonded without a DBA, but …
The Effect Of Naocl, Ca(Oh)2, Mta And Mtad On Root Dentin Fracture Resistance, Sunil Ilapogu
The Effect Of Naocl, Ca(Oh)2, Mta And Mtad On Root Dentin Fracture Resistance, Sunil Ilapogu
Loma Linda University Electronic Theses, Dissertations & Projects
Various materials are used for the treatment of immature teeth that have been subjected to trauma or decay. It is not well established what effect these materials may have on the immature root dentin. A concern would be the resistance to fracture of the remaining root dentin. The purpose of this study was to compare the resistance of fracture of bovine teeth treated with sodium hypochlorite, calcium hydroxide, gray MTA and gray MTA in conjunction with MTAD after certain periods of time. One hundred and ninety five freshly extracted, intact bovine incisors were prepared using a modified Haapasalo and Orstavik …
Cbct Panoramic Images Vs. Traditional Panoramic Radiographs, Sunny Young Hutchinson
Cbct Panoramic Images Vs. Traditional Panoramic Radiographs, Sunny Young Hutchinson
Loma Linda University Electronic Theses, Dissertations & Projects
The purpose of this research was to compare the accuracy of angular measurements of the panoramic image of the Newtom 9000™ Cone Beam Computed Tomography (CBCT) with the Sirona™ Orthophos panoramic unit. The study was separated into three parts: phantom study, patient study, and archform study. The phantom study used fabricated phantom typodonts to compare angular measurements between the Newtom 9000™ panoramic image and the Sirona™ panoramic radiograph. Accuracies of the measurements were then determined by comparing the values to the actual phantom typodont. No marked differences in angular measurements were recorded for the phantom typodont using either of the …
The Effect Of Rapid Maxillary Expansion On Nasal Cavity Volume And Nasal Airway Resistance, Todd Ehrler
The Effect Of Rapid Maxillary Expansion On Nasal Cavity Volume And Nasal Airway Resistance, Todd Ehrler
Loma Linda University Electronic Theses, Dissertations & Projects
This study examined the effects of Rapid Maxillary Expansion (RME). Using Cone Beam CT scanning technology and Rhinomanometry, the volume and nasal airway resistance (NAR) of the nasal cavity was measured immediately before and after RME.
27 subjects (16 female, and 11 male), ages 9-18 were enrolled in the study. After RME all subjects had a statistically significant increase in nasal cavity volume. The pre expansion group experienced a statistically significant reduction in NAR when compared to the post expansion group. Individuals with a high pre expansion NAR experienced the greatest reduction in NAR. The correlation between change in volume …
The Role Of Dairy Products In The Calcium Intake Of Suburban Adolescents, Simie Bredeweg-Dejager
The Role Of Dairy Products In The Calcium Intake Of Suburban Adolescents, Simie Bredeweg-Dejager
Masters Theses
The purpose of this study was to examine consumption of dairy products by suburban adolescents. This was a secondary analysis of data from a questionnaire administered in late fall of 2003. There were 255 adolescents who completed the questionnaire. Data were examined to estimate calcium intake from dairy products.
There was a significant difference in the amount of calcium adolescents consume from cheese, compared to that supplied by milk (t = -8.502, p = .000). Further analyzing by gender, there was a significant difference between boys and girls intake of milk and cheese. No significant difference was found between boys …
Bioinformatic Analysis Of A Mammalian Bip Gene For Insertion Into Green Algae And Comparison Of Its Possible Effects On The Synthesis Of A Mammalian Antibody, Katrina Ghazanfar
Bioinformatic Analysis Of A Mammalian Bip Gene For Insertion Into Green Algae And Comparison Of Its Possible Effects On The Synthesis Of A Mammalian Antibody, Katrina Ghazanfar
Theses and Dissertations
This dissertation describes a study utilizing bioinformatics to analyze homologues of a molecular chaperone, glucose-regulated protein 78 (grp 78), also known as BiP. The selected homologous proteins originate from organisms of infinitely diverse genera. Comparisons of protein sequence yielded the first clues of a common ancestry among these proteins. Furthermore, protein molecular weights, isoelectric points, N-terminal amino acids and half-lives of a known homolog and a non-homologous protein were examined. Additionally, electroporation, a state-of-the-art plasmid insertion technique, was explored using Chlamydomonas reinhardtii, a green alga, as the recipient of a parent plasmid, pSP124S. Distinctive hypertonic solutions and three separate field …
Condylar Remodeling After Distraction Osteogenesis And Bilateral Sagittal Split Osteotomy, Robert Barker Hoffman
Condylar Remodeling After Distraction Osteogenesis And Bilateral Sagittal Split Osteotomy, Robert Barker Hoffman
Loma Linda University Electronic Theses, Dissertations & Projects
The present pilot study is a histological evaluation of mandibular condyles taken from minipigs that underwent either traditional mandibular advancement (bilateral sagittal split osteotomy), or a distraction osteogenesis procedure to advance the mandible. One pig received a bilateral sagittal split osteotomy with an immediate mandibular advancement of 14 mm, while another pig underwent distraction osteogenesis consisting of a gradual advancement of 2 mm per day to advance the mandible the same distance. The control animal received no surgery.
In the present study, the mandibular condyles of the three pigs (2 control, 2 bilateral sagittal split osteotomy, and 2 distraction osteogenesis) …
Prevalence Of Degenerative Joint Disease In A Pre-Orthodontic Adolescent Sample, Marie Mansour
Prevalence Of Degenerative Joint Disease In A Pre-Orthodontic Adolescent Sample, Marie Mansour
Loma Linda University Electronic Theses, Dissertations & Projects
The purpose of this research was to determine a prevalence of degenerative joint disease in our pre-orthodontic adolescent patients age ten through seventeen. The prevalence was assessed according to gender. Severity of DJD was established for each patient and a "red flag" for diagnosis was identified. The purpose was also to establish norms for joint space for patients with and without degenerative joint disease. Correlations to distal condyle position and angle classification were described. 123 consecutive patients, 77 female and 46 male T1 NewTom records were reviewed. Severity of DJD was classified according to none, mild, moderate, and severe. Sagittal …
Cone Beam Ct And Digital Radiography. A Comparative Study Of P/A Cephalometrics., Michael John Erickson
Cone Beam Ct And Digital Radiography. A Comparative Study Of P/A Cephalometrics., Michael John Erickson
Loma Linda University Electronic Theses, Dissertations & Projects
The purpose of this study was to determine if Rickett's posterio-anterior (P/A) cephalogram measurements could be obtained from Cone Beam Computerized Tomographic (CBCT) images taken on the NewTom QR-DVT 9000™.
Fifteen frontal cephalometric radiographs were chosen for good image quality, with no regard for patient age or gender. Each cephalogram was traced three times by the same operator using ZeroBase™ software. Landmarks were located and measured according to the Rickett's frontal analysis technique. Methods were devised for obtaining analogous measurements using CBCT images on the same group of patients.
Measurements obtained using CBCT correlated well with those obtained using the …
Levels Of Intravenous Enterococcus Faecalis That Cause Heart Colonization, Louis Zane Stromberg
Levels Of Intravenous Enterococcus Faecalis That Cause Heart Colonization, Louis Zane Stromberg
Loma Linda University Electronic Theses, Dissertations & Projects
While previous studies have shown that presence of bacteria in systemic circulation can cause infective endocarditis, there is no information on the specific amount of bacteria necessary to cause this condition. The purpose of this study was to establish the minimum level of circulating bacteria that will cause colonization of damaged heart valves in rats. Fifty-two Sprague-Dawley rats were anesthetized and their heart valves were damaged using an established protocol. A clinical isolate of Enterococcus faecalis was transformed with a plasmid bearing the luxF and Chloramphenicol cassettes to label the bacteria with the light-emitting protein. After four weeks, the rats …
The Prevalence Of Dental Caries In A Central Coast Of California Middle School, Belen R. Mojica
The Prevalence Of Dental Caries In A Central Coast Of California Middle School, Belen R. Mojica
Master's Projects
Dental morbidity is a chronic problem that affects a child's ability to attend school, to learn, and to enjoy good health. Of all childhood diseases, oral disease ranks as one of the highest and is considered one of the most common and the least treated. The prevalence of dental caries is high among children and adolescents in school populations. This study explored the prevalence of dental caries in a California Central Coast middle school during the 2002-03 school year (N=526). Findings indicated that severe dental caries existed in both boys and girls and in students of various ethnic groups. Approximately …
Effects Of Ultrasonic And Hand-Activated Scaling On Tactile Sensitivity In Second Year Dental Hygiene Students In A Clinical Setting, Miranda Beeson
Effects Of Ultrasonic And Hand-Activated Scaling On Tactile Sensitivity In Second Year Dental Hygiene Students In A Clinical Setting, Miranda Beeson
Dental Hygiene Theses & Dissertations
The purpose of this study was to determine if time spent instrumenting class III, IV, and V calculus clients, either hand-activated or with an ultrasonic scaler, decreased the tactile sensitivity of the clinician, and if change occurs in index finger, middle finger, and thumb tactile sensitivity prior to and following 45-minute scaling episodes. This study also afforded an opportunity to determine if tactile sensitivity changed in the same dental hygiene students over a one-year period of time by comparing data with that of a similar study conducted in the fall of 2002. Random assignment and a sample size of 25 …
Pain Experienced By Patients Using Thinner Vs. Thicker Probes During Probing, Mohamed A. Hassan
Pain Experienced By Patients Using Thinner Vs. Thicker Probes During Probing, Mohamed A. Hassan
Loma Linda University Electronic Theses, Dissertations & Projects
The aim of the present study, performed during periodontal recall visits, was to compare the levels of pain experienced by patients during periodontal probing using probes with tip diameters of either 0.40 mm or 0.63 mm.
Prior to the maintenance procedures, three groups of 20 adult patients were examined by 3 different therapists. Diagonal maxillary/mandibular quadrants were probed with a 0.40 mm and a 0.63 mm probe, respectively. At the completion of probing of each quadrant, the patients were asked to describe their pain using a Visual Analog Scale (VAS).
The results were as follows: Most patients showed low VAS …
Pain Experienced By Patients During Periodontal Examination, Mohammed A. Al-Ajmi
Pain Experienced By Patients During Periodontal Examination, Mohammed A. Al-Ajmi
Loma Linda University Electronic Theses, Dissertations & Projects
The aims of the present study were to determine the level of pain experienced by patients from probing during periodontal examination, and to find out to what extent the examining periodontist and the dental assistant could estimate the degree of pain experienced by the patients.
For each of three periodontists, 20 patients referred for periodontal diagnosis and treatment were selected. The periodontist carried out his examination, which included probing at six sites per tooth. Following probing, the patients rated the pain using a Visual Analog Scale (VAS). The periodontist and the dental assistant who helped out during the examination independently …
Bone Formation Using Platelet-Rich Plasma + Allograft: An Experimental Study In Sheep, Edgar Grageda
Bone Formation Using Platelet-Rich Plasma + Allograft: An Experimental Study In Sheep, Edgar Grageda
Loma Linda University Electronic Theses, Dissertations & Projects
Recently Platelet-Rich Plasma has been proven to be an effective regeneration adjunct when combined with autogenous bone in the reconstruction of mandibular defects. However, little is known about the effect of PRP when combined with a bone allograft in the maxillary sinus.
The purpose of this study was to quantitatively evaluate the ability of PRP to enhance bone regeneration in the maxillary sinus of sheep when combined with DFDBA + CCFDBA. Ten sheep were selected for bilateral sinus augmentation DFDBA + CCFDBA + PRP (test) and DFDBA + CCFDBA (control). Five were sacrificed at 3 months and the other five …
Ionizing Radiation And Endostatin Gene Therapy Against Lung Tumor, Xian Luo
Ionizing Radiation And Endostatin Gene Therapy Against Lung Tumor, Xian Luo
Loma Linda University Electronic Theses, Dissertations & Projects
Although many advances have been made in radiotherapy, tumor radioresistance and normal tissue damage continue to always be important issues for radiation oncologists. Numerous reports have also documented that radiation exposure increases the risk for malignancy and suppresses immune mechanisms. However, increasing evidence has suggested that anti-angiogenic therapy that targets tumor blood supply may alter abnormal tumor vasculature, thus synergizing radiotherapy. The governing hypothesis of the present study was that modification of tumor vasculature by antiangiogenic gene therapy can increase the efficacy of radiotherapy and that radiation can also improve DNA transfection efficiency by increasing expression of the administered gene. …
The Effect Of Body Position And Mattress Type On Interface Pressure In Quadriplegic Adults-A Pilot Study, Parivash Moody
The Effect Of Body Position And Mattress Type On Interface Pressure In Quadriplegic Adults-A Pilot Study, Parivash Moody
Master's Projects
Dental morbidity is a chronic problem that affects a child's ability to attend school, to learn, and to enjoy good health. Of all childhood diseases, oral disease ranks as one of the highest and is considered one of the most common and the least treated. The prevalence of dental caries is high among children and adolescents in school populations. This study explored the prevalence of dental caries in a California Central Coast middle school during the 2002-03 school year (N=526). Findings indicated that severe dental caries existed in both boys and girls and in students of various ethnic groups. Approximately …
Assessing Health Beliefs About Colonoscopy, Katherine Gipsh
Assessing Health Beliefs About Colonoscopy, Katherine Gipsh
Master's Projects
The purpose of this study was to assess by questionnaire health beliefs related to colorectal cancer screening ( colonoscopy) in a population 50 years of age and older. The Health Belief Model provided the theoretical framework for data collection. This study was a non-experimental exploratory survey. A total of 42 subjects (31% male and 69% female) completed a 14-item questionnaire that covered psychological factors including health beliefs. Descriptive statistics were used for data analysis. Results of this study shows there is a need for appropriate health education to trigger people to take preventive action ( colonoscopy). Community based health education …
The Elders, Finding Long Ago And Now, Our Elders Health Journey, Judy A. Erickson Jacoby
The Elders, Finding Long Ago And Now, Our Elders Health Journey, Judy A. Erickson Jacoby
Theses and Dissertations
No abstract provided.
Does Body Mass Index (Bmi) Affect The Prevalence Of Pap Smears?, Debra Maas
Does Body Mass Index (Bmi) Affect The Prevalence Of Pap Smears?, Debra Maas
Theses and Graduate Projects
Background The pap smear test is highly effective at detecting pre-cancerous and cancerous cervical cells. However, only 68.3 percent of women in the U.S. received a Pap smear in 2001. Previous research studies have shown that overweight and obese women are less likely to receive routine pap smears. This is especially concerning because obesity is a risk factor for cervical cancer Methods A retrospective review of data was conducted from the medical records of 90 women, 18 years of age or older, who were seen by the researcher at SMDC clinics in Deer River and Remer, Minnesota from February 2003 …
Motivation For Medicine: What Factors Influence Men And Women To Enter Physician Assistant School Versus Medical School?, Ross Golla
Theses and Graduate Projects
Background The purpose of this study was to distinguish what factors were most significant in medical and physician assistant student's decision to enter medicine, in addition to comparing male and female student's motivation. Methods A survey consisting of potential motives or deterrents for entering medicine was given to medical and PA students. Results were analyzed using an independent T-test. Results PA students reported greater significance on the duration of academic and clinical training, the ability to balance work and family, the opportunity to achieve a high income, dealing with malpractice allegations and the need to be on-call as motives for …
The Prevalence Of Herbal Product Use In The Treatment And Management Of Diabetes In The Latino Population, Gobind Tarchand
The Prevalence Of Herbal Product Use In The Treatment And Management Of Diabetes In The Latino Population, Gobind Tarchand
Theses and Graduate Projects
Background. Healthcare providers are often concerned about the use of alternative treatments by patients of Hispanic decent. Herbal product use is one type of alternative treatment that is most concerning. This study examined the prevalence of herbal product use for diabetes control by a sample of patients of Hispanic decent. Methods. A convenience sample of 42 patients of Hispanic decent with type 2 diabetes was surveyed. Following a descriptive, quantitative design, questionnaires were available in both English and Spanish and were distributed to participants by the diabetic educator at La Clinica en Lake. Questions were asked about demographics, diabetes status …
The Effects Of Universal And Rotating Ultrasonic Inserts On Wrist Movement, Scaling Time Efficiency, And Cumulative Trauma Risk In Dental Hygienists, Christine Colavita Hawn
The Effects Of Universal And Rotating Ultrasonic Inserts On Wrist Movement, Scaling Time Efficiency, And Cumulative Trauma Risk In Dental Hygienists, Christine Colavita Hawn
Dental Hygiene Theses & Dissertations
The purpose of this study was to determine if differences existed in range of wrist movements and scaling time efficiency in dental hygienists that use a rotating ultrasonic insert as compared to those who use a standard universal insert. A convenience sample of 30 consenting experienced dental hygienists from the Norfolk area who met inclusion criteria was invited to be subjects. Using a crossover research design, each experimental subject used the rotating ultrasonic scaling insert to remove 2 cc artificial calculus from a typodont in a controlled, simulated clinical situation for up to 15 minutes. While scaling, each subject wore …
Detection Of Bacteria To Dental Tissue By Low-Light Imaging, G-Hong Robert Hsu
Detection Of Bacteria To Dental Tissue By Low-Light Imaging, G-Hong Robert Hsu
Loma Linda University Electronic Theses, Dissertations & Projects
Bacteria have been shown to play an important role in the development of pulp and periradicular disease. The source of the infective bacteria is most often the oral cavity. Previous studies have detected bacteria in teeth that are structurally intact that seemingly have no communication intraorally. Anachoresis has been proposed as a mechanism for localizing circulating bacteria to such teeth. In several previous bacteriologic anachoresis studies, bacteria have been found to localize in inflamed dental tissues. The criticism most commonly associated with these investigations has been the potential contribution of contaminant bacteria resulting in false positive findings.
Low-light image analysis …
Patient Age, Number And Type Of Clinical Encounters, And Provider Advice To Quit Smoking. Brfss 2000, Sean C. Lucan
Patient Age, Number And Type Of Clinical Encounters, And Provider Advice To Quit Smoking. Brfss 2000, Sean C. Lucan
Yale Medicine Thesis Digital Library
The purpose of this study was to determine how often smoking patients receive quit advice and if patient age, and number and type of clinical encounters are associated with odds of receipt. Behavioral Risk Factor Surveillance System (BRFSS) 2000 data were used to study 10,582 smokers (aged ≥ 18) having ≥ 1 of three types of clinical encounters in the past year: routine checkups, other physician encounters, or dental visits. Multivariate-adjusted odds ratios (ORs) for quit advice by patient age, encounter type, and number of doctor's visits were calculated. Almost 55% of patients were advised to quit smoking. There was …
Factors That Most Influence Job Satisfaction Among Cardiac Nurses In An Acute Care Setting, Lashonda Leigh Bare
Factors That Most Influence Job Satisfaction Among Cardiac Nurses In An Acute Care Setting, Lashonda Leigh Bare
Theses, Dissertations and Capstones
The purpose of this study is to determine cardiac nurses’ level of job satisfaction through an examination of the relationship between Herzberg’s motivation and hygiene factors and job satisfaction. The study used a non-experimental, quantitative design with a theoretical framework based on Herzberg’s Motivation Versus Hygiene theory. The independent variables were motivation and hygiene factors and the dependent variable was nurse job satisfaction. The Work Quality Index and a demographic survey were given to approximately 32 registered nurses at a medical center in southwestern, West Virginia. The data was collected over three weeks and was analyzed using descriptive and correlational …
Smoking Cessation Education Needs As Reported By Current Smokers, Former Smokers, And Nurses, Ana Grynwald
Smoking Cessation Education Needs As Reported By Current Smokers, Former Smokers, And Nurses, Ana Grynwald
Theses, Dissertations and Capstones
Purpose: The purpose of this study was to determine if there is a difference in the importance of selected smoking cessation information to current smokers, former smokers, and nurses in the Appalachian population. There were no instruments found in the literature to assess the perceptions of educational content for smoking cessation, therefore, a Smoking Cessation Education (SCE) survey was developed to measure the perceptions. The conceptual framework for this study was based on the Health Belief Model developed by psychologists Drs. Godfrey M. Hochbaum, S. Stephen Kegeles, Howard Leventhal, and Irwin M. Rosenstock..
Design: The SCE is a ten question …
The Biopsychosocial Model Of Medicine: Implications For The Future Of Healthcare, Abby M. Luensmann
The Biopsychosocial Model Of Medicine: Implications For The Future Of Healthcare, Abby M. Luensmann
Presidential Scholars Theses (1990 – 2006)
The science of medicine is changing at an incredible rate. New treatments, technologies, and biologically-based discoveries seem to occur almost daily. In fact, the health care business has evolved into the largest service industry in the United States, grossing more than $1 trillion annually (Taylor, 2003). Despite the obvious attention paid to health-related issues in this country, is our health care system actually providing American citizens with the most efficient and effective care treatments possible? Do current medical practices have the best interests of the American public in mind, or are outdated philosophies being used to treat illnesses and diseases …
Substance Abuse Treatment: Perceptions From The Client's Point Of View, Margarita Brunilda Salazar
Substance Abuse Treatment: Perceptions From The Client's Point Of View, Margarita Brunilda Salazar
Theses Digitization Project
The focus of this study was to explore and analyze the perceptions of treatment effectiveness among substance abuse clients involved in Bilingual Family Counseling Outpatient Treatment. The intent was to have a better understanding of a treatment centers program's outcome from the clients' point of view and its effectiveness in terms of the usefulness to the client.
Factors Influencing Applicant Ranking Of Orthodontic Programs, Michael D. Payne
Factors Influencing Applicant Ranking Of Orthodontic Programs, Michael D. Payne
Theses and Dissertations
Orthodontic programs spend considerable amounts of time and energy to attract, recruit, and interview the best and brightest applicants. Applicants and programs submit ranked preferences, and resident positions are filled by a computerized matching system (Match). The specific aims of this study were to determine the relative importance of certain factors in applicants' Match ranking of orthodontic programs and to determine differences between orthodontic Program Directors perceptions and actual factors cited by applicants influencing their ranking of orthodontic programs.Surveys were mailed to 55 orthodontic Program Directors and 478 applicants participating in the 2002 orthodontic Match. Forty-nine Program Director (89%) and …