Medicine and Health Sciences Commons^™

The Nonenzymatic Browning Reaction Of Whole Wheat Bread, Lily S. Wilson

Loma Linda University Electronic Theses, Dissertations & Projects

Forty-eight weanling male Sprague-Dawley laboratory white rats were fed diets composed of whole wheat bread which was made with one of the three sweeteners studied and added before or after baking and adequate vitamins and minerals for the animals' needs. The rats were divided into six groups, designated A through F. Groups A, C, and E were fed bread diets that had the sweeteners honey, corn syrup, and white table sugar added respectively before baking, while Groups B, D, and F were fed bread diets with the sweeteners honey, corn syrup, and white table sugar added respectively after baking.

The …

Histology Of Apical Tissue : A Comparative Study Of Sargenti Formula, Short Vs. Overfill, James G. Schulze

Loma Linda University Electronic Theses, Dissertations & Projects

Four Stump-tail monkeys (Macaca spiciosa) were used for this study to analyze, on a cellular level, the apical tissue of teeth overfilled versus teeth filled short 1-3 mm. of the radiographic apex with the Sargenti formula. In each animal four incisors were filled short and four incisors were overfilled. A final sample size consisted of 28 teeth. The time periods ranged from 48 hours to 120 days. After analysis of the histology it can be stated that the teeth filled short showed no inflammation to moderate inflammation in the periapical tissues. In teeth overfilled there was a range from moderate …

Determination Of Lead Content In Apical Tissue Following Root Canal Obturation With Sargenti's Formula, G. Merle Hickok

Loma Linda University Electronic Theses, Dissertations & Projects

Four Stump-tail monkeys were used to help determine if the lead in Sargenti's formula diffuses out into the apical tissue while confined entirely within the root canal. In each animal two teeth were filled with Sargenti's formula 1-2 millimeters short of the radiographic apex, and two teeth were filled with gutta percha and Proco-Sol sealer for controls, making a total sample size of sixteen. The time ranged from 48 hours to 120 days. Lead analysis using the spectrophotometric method showed a higher lead content in the teeth filled with Sargenti's formula than with the gutta percha controls.

Consumer Satisfaction With Services In A Mental Health Center, Sandra M. Hare

Loma Linda University Electronic Theses, Dissertations & Projects

An exploratory study was done with descriptive comparative components to examine the levels of consumer satisfaction at a mental health center, and there was also the intent to determine if satisfaction or dissatisfaction in one area of service affected the general satisfaction level. In addition, other variables and demographic data included in the questionnaire were examined.

Data collection was done by the use of a 23-item questionnaire that was administered to three departments of service, Outpatient, Drug Abuse, and Day-care, at North Orange County Mental Health Services. The sample group consisted of any adult in treatment who had made three …

Evaluation Of A Special Teaching Program With Ambulatory Cardiac Patients, Mary L. Mcgregor Minns

Loma Linda University Electronic Theses, Dissertations & Projects

This study was designed to test the hypotheses that ambulatory cardiac patients given a special teaching program would have increased understanding about their medication, make fewer medication errors, and know more about undesirable effects and how to handle them than patients not included in the special teaching program. Forty-one ambulatory cardiac patients were, after a random start, alternately assigned to an experimental or to a control group. All the patients were taking one or more of three different medications before hospitalization, during their hospital stay, and after their discharge. Three medications, digoxin (lanoxin), lasix, and nitroglycerin, were studied. The program …

Growth Augmentation With Activators, John R. Sibley

Loma Linda University Electronic Theses, Dissertations & Projects

This research was performed to determine if bony changes could be effected by activator treatment and how stable this treatment is.

From a sample of twenty-seven cases with before activator treatment cephalometric radiographs. Rocky Mountain Data Systems provided growth projections, with and without edgewise treatment, for the period of time each patient was in treatment. These forecasts were compared to the post-treatment cephalograms to analyze the orthopedic effects of activator treatment with normal growth and with edgewise therapy.

Nine of the twenty-seven case treated sample responded to recall for post-treatment cephalograms and were analyzed for relapse.

It was apparent that …

The Uses Of Pins For Retention In Restorative Dentistry : An Independent Learning Program, Ali M. Asad

Loma Linda University Electronic Theses, Dissertations & Projects

Although pins have been used since the 1800's for retention of dental restorations, their widespread use had been limited because supporting techniques such as impression, die materials, better handpieces and drills have only been perfected in the last two decades.

The pin technique allows for greater retention of restorative materials which otherwise might require considerable reduction of sound tooth substance; this is particularly paramount when insufficient coronal tooth structure is present. Also, the placing of pins in divergent directions gives excellent retention. Pin-retained castings reduce the need for deep cavity preparation in some cases.

Pins are useful in stabilizing hypermobile …

An Analysis Of Blood Cortisol Levels In Oral Surgery Patients Under Various Levels Of Intravenous Medication, Fred L. Bunch

Loma Linda University Electronic Theses, Dissertations & Projects

This study was designed to objectively evaluate each pharmacological component of the Loma Linda intravenous sedation technique. The results were evaluated as a function of stress as measured by plasma cortisol levels.

The study was conducted on fifty patients in groups of ten. Blood samples were taken at set procedure intervals during dental extraction of third molar teeth. A component of the Loma Linda technique was deleted from each of the groups to ascertain its role in sedation and relief of stress.

Results show a trend toward reduction of plasma cortisol levels as the procedure progresses, indicating a measure of …

Obesity And Vegetarianism In Seventh-Day Adventist Women, Charlotte Ann Van Camp Darnell

Loma Linda University Electronic Theses, Dissertations & Projects

This thesis describes a comparative study of 82 vegetarian and 21 non-vegetarian Seventh-day Adventist females ages 25 to 65 to discover if there is a possible correlation between diet and weight. The subjects were chosen by random sampling in the specified target population and were personally interviewed by the use of a questionnaire.

The general linear hypothesis analysis shewed that present age and relative weight at age 25 were significant in terms of present relative weight; however, physical activity and socioeconomic stratum were not significant. Diet, defined as vegetarian or non-vegetarian, was only marginally significant.

Conclusions of this study are …

The Effect Of A Pufa Diet On Human Red Blood Cell Levels Of 2, 3-Dpg, Sandra A. Dassenko

Loma Linda University Electronic Theses, Dissertations & Projects

Fasting blood was collected at weekly intervals and the level of 2,3-DPG of the red blood cell was determined in 15 male subjects age 28 to 57 with serum cholesterol levels greater than 250 mg%. A lactovegetarian diet containing no cholesterol, a high level of dietary fiber and a P/S ratio of 4.0 was provided for 28 days.

During the course of the experimental period the 2,3-DPG increased by an average of 0.83> «moles/ml red blood cell which was highly significant (p^.001). This significant increase of 2,3-DPG which relates to an increased oxygen delivery capability of the red blood cells …

The Requirement For Viable Platelets In The Coagulation Of Heparinized Blood, Karen L. Hay

Loma Linda University Electronic Theses, Dissertations & Projects

Activated coagulation times (ACT's) of heparinized blood or plasma samples containing normal platelets were compared with ACT’s of heparinized samples containing non-viable or abnormally functional platelets. The non-viable platelets were prepared by freeze/thawing, and the abnormally functional platelets resulted from the addition of adenosine or adenosine 5'-diphosphate (ADP).

The ACT’s of the heparinized samples containing treated platelets were considerably longer than the ACT’s performed on samples with untreated platelets. Treated platelets had no effect on unheparinized samples, however. This would indicate that, although platelet factor 3 (PF3) is sufficient to promote clotting of unheparinized blood, viable platelets, in addition, are …

A Clinical Comparison Of The Effectiveness Of Two Intracanal Medicaments, Xp-7/Prednisolone And 1% Pcp/Prednisolone, In Reduction And Duration Of Post-Treatment Pain, Kenneth G. Whitnack

Loma Linda University Electronic Theses, Dissertations & Projects

This study was undertaken to determine which intracanal medication, 1% aqueous parachlorophenol with prednisolone or XP-7 with prednisolone was the most effective in reducing the severity and duration of post-treatment pain following initial, conventional endodontic therapy. The investigation was conducted by five endodontists in their private offices and utilized a double-blind technique.

The postoperative reactions of 343 patients were examined statistically. It was shown that there was no statistically significant difference in the reduction or duration of post-treatment pain with either drug. Other factors such as sex, age, location of tooth and presence of a radiographic lesion were statistically significant …

A Computerized Study Of The Behavior Of The Facial Axis During Treatment And Post-Retention, Gary Cornforth

Loma Linda University Electronic Theses, Dissertations & Projects

A computerized cephalometric study of mandibular rotation was made of one hundred and eight patients that were treated by Drs. Ricketts and Bench of Pacific Palisades, California. These treated cases are on file at Rocky Mountain Data Systems in Sherman Oaks, California. The Ricketts computerized cephalometric analysis was utilized with each case.

Chin behavior during treatment and post-retention has always been of considerable interest to the clinical orthodontist and it was therefore decided to divide the patients into four groups according to the behavior of the chin during treatment and post-retention. Group 1 consisted of those patients that experienced a …

Sexual Parameters In Doctor-Patient Relationship, Judith Adams Perry

Loma Linda University Electronic Theses, Dissertations & Projects

A survey to determine the attitudes and practices of physicians regarding touching (erotically and nonerotically) their patients was conducted with 164 female physicians. The results were compared with a previous study (from the University of California, Los Angeles) of male physicians. As compared with the UCLA sample of male physicians, more female physicians believe in and engage in nonerotic touching; but fewer female physicians believe in and engage in erotic touching. None of the female physicians reported sexual intercourse with their patients as compared with 33 or 11% of the UCLA sample of male physicians.

The Effect Of Masking On The Acoustic Reflex Threshold, Nancy E. Aldrich

Loma Linda University Electronic Theses, Dissertations & Projects

This study investigated the effect of masking noise on the threshold for stapedial reflex. It has been shown that masking which shifts the hearing threshold causes a loudness function typical of recruitment. It was hypothesized that the stapedial reflex threshold remains the same in a masked situation as in the unmasked situation . It was suggested that this demonstrates recruitment in that the presence of noise reduces the range between hearing thresholds and stapedial reflex thresholds.

Ten subjects, with no known hearing loss or pathology involving the ear or reflex arc were used in this study. A 1000 Hz tone …

The Effect Of Insulin, Fluoride And Methyl Xanthines On The Hypothalamic-Parotid Gland Endocrine Axis, Reagan Ondler

Loma Linda University Electronic Theses, Dissertations & Projects

The purpose of this study was to determine the effect of insulin and fluoride on dentinal fluid movement (FM) in high-sucrose fed rats as mediated through the hypothalamic-parotid gland endocrine axis. In conjunction with the fluoride study, the possible involvement of cAMP was examined through the use of several methyl xanthines which are recognized as phosphodiesterase inhibitors.

Twenty-one day old, male Sprague Dawley rats were maintained on a high-sugar diet (62% sucrose) for 8-9 days at which time intravenous or arterial infusions of insulin, fluoride or the methyl xanthines were performed. Additional procedures included collecting plasma from rats which had …

Developing A Periodontal Screening Examination, Jeffrey R. Morgulis

Loma Linda University Electronic Theses, Dissertations & Projects

Periodontal disease is the primary cause of tooth loss in the adult, and therefore, early diagnosis of periodontal disease by the general practitioner is important in terms of prevention as well as treatment. The present study was designed to develop a periodontal screening examination which would fulfill the following requirements:

1. It should utilize precise and easily understood criteria.
2. It should take a short period of time.
3. It should enable the practitioner to accurately place patients into various disease categories.
4. It should enable the practitioner to easily and quickly relate these disease categories to treatment.

A "comprehensive" periodontal examination was performed …

Delegation Of Task Functions By Dietitians To Dietetic Technicians, James Lumsden

Loma Linda University Electronic Theses, Dissertations & Projects

Dietetics has been identified as one of the professions in which there is a shortage of qualified personnel. The need to delegate selected task functions to extend professional skills and contain costs has been recognized in many professions faced with a manpower shortage.

This research was done to determine the degree to which dietitians will utilize dietetic technicians in the role proposed by the American Dietetic Association. A questionnaire was the instrument utilized to collect data from the 197 randomly selected hospitals in the continental United States. Task functions identified in the proposed job descriptions for the dietetic technician in …

A Descriptive Study Of Women's Attitudes Towards Obtaining Or Not Obtaining Papanicolaou Smears, Linda J. Shults

Loma Linda University Electronic Theses, Dissertations & Projects

It was the purpose of this study to identify the attitudes of a selected group of women which influenced their participation in Papanicolaou testing. These attitudes were inferred from the reasons women gave for obtaining the test. The subjects were randomly selected from the telephone book of a medium-sized town in Southern California. The 135 women who participated in the telephone interview were considered to be the respondents in the study.

A review of the literature revealed that through the annual use of the Papanicolaou smear, approximately 11,000 deaths every year from uterine and cervical cancer could be prevented, Attitudes …

The Effect Of Chlorhexidine Or Oxytetracycline Irrigation On The Subgingival Microbiota, George M. Whitehead

Loma Linda University Electronic Theses, Dissertations & Projects

Inflammation of the connective tissue adjacent to the periodontal pocket may depend on the continuous presence of bacteria. Following periodontal treatment, subgingival plaque accumulation may interfere with healing. The purpose of this study was to determine the effect of irrigation with chlorhexidine or oxytetracycline on the cultivable bacteria in standardized chronic periodontal pockets in dogs. Chronic periodontal pockets were irrigated with either 5 ml. of 2 percent chlorhexidine or 250 mg. of oxytetracycline in 5 ml. distilled water. The pockets were irrigated dally for two days and were sampled on the first, fourth, seventh, fourteeth, twenty-first, thirty-fifth and forty-second days …

Stressful Life Events And Coping Methods In Mental-Illness And Wellness Behaviors, Janice M. Bell

Loma Linda University Electronic Theses, Dissertations & Projects

A descriptive-comparative study was done to examine the relationship between stressful life events and mental-illness and wellness behaviors, and the coping methods used by individuals exhibiting each behavior.

Data collection included the use of the Social Readjustment Rating Scale and a coping scale administered to the experimental and control samples. The experimental group consisted of thirty psychiatric in-patients of three general hospitals who were oriented in three spheres. Subjects of the control group had no history of psychiatric illness, were currently not receiving medical treatment, and were adequately functioning in a socially accepted role. They were randomly selected to match …

A Cephalometric Study Of Post-Retention Relapse In Mandibular Expansion Of Cuspids And Molars, Randall J. Schuler

Loma Linda University Electronic Theses, Dissertations & Projects

The purpose of this research was to determine if the advancements of cephalometrics and the capacity of the computer to quantify skeletal relationships could help the orthodontist recognize those cases where arch length could be gained through buccal expansion with little risk of relapse. To determine the stability of orthodontic treatment changes, the mandibular arches of 72 patients were studied. The cases were treated by Drs. Bench and Ricketts and were selected on the basis that each case must include three complete sets of frontal and lateral headplates, before and after treatment, and a minimum of two years out of …

Subvocalization And Stuttering, Laverne Brent Gohl

Loma Linda University Electronic Theses, Dissertations & Projects

Twenty-six subjects, thirteen stutterers and thirteen fluent speakers, were matched by age, sex and educational background. None had any history of neurosurgery, neuropathology or debilitating injury to the head or neck.

Two GRASS silver chloride electrodes were attached to the chin and inferior surface of the lower lip of each subject. This recording site was chosen because, presumably, it would detect activity of the quadratus labii inferioris, a muscle involved in the articulation of labial phonemes, permitting a distinction between the labial and nonlabial ensembles and, therefore, speech and nonspeech oral activity. EMG recordings, measuring covert phonetic activity, were obtained …

An Evaluation Of A Precipitation Hardened Stainless Steel Alloy As An Alternate To Chrome Cobalt Alloys For Orthodontic Purposes, Joseph M. Caruso

Loma Linda University Electronic Theses, Dissertations & Projects

The intent of this paper was to evaluate a precipitation hardenable stainless steel (Alloy I) as an alternate to chromium cobalt alloys (Alloy II) for orthodontic purposes.

After evaluating several heat treatments of alloy I it was determined that solution treatment produced a wire that was soft initially and had similar properties found with alloy II. After solution treatment of alloy I a 330 gram load was required to deform the wire 1.0 mm which proved to be similar to the 295 gram force required for alloy II for the same deformation and only an 11% increase in resistance of …

An Evaluation Of The Cytotoxicity Of Root Canal Filling Materials On Tissue Culture Cells In Vitro: Grossman's Sealer, N2 Permanent, Rickert's Sealer, And Cavit, Donald D. Antrim

Loma Linda University Electronic Theses, Dissertations & Projects

An in vitro study using radioactively-labeled tissue culture cells was conducted over a seven-month period on Grossman's sealer, Rickert's sealer, N₂ Permanent, and Cavit to determine the lasting and relative tissue toxicity of these materials.

From this study it was observed that all materials possess lasting tissue toxicity. When relative toxicity is considered, Grossman's is the most toxic, followed by N₂, Rickert's and Cavit in descending order of toxicity. Both Grossman's and N₂ would be considered highly toxic, with Rickert's displaying moderate toxicity. Cavit would be considered mild to moderate in toxicity.

The use of radioactively-labeled …

A Correlation Study Of Selected Teeth By Circumferential Measurement, Steven W. Campbell

Loma Linda University Electronic Theses, Dissertations & Projects

A correlation was established among the circumferences of teeth in a given set. This is the first step in constructing a band numbering system so that the fitting of one band (the predictor tooth) would give you the band sizes for the remaining teeth in the set. This would make possible improved efficiency for the orthodontist during band selection.

Individual sets of teeth from impressions of patients starting orthodontic treatment were measured by the use of the dentometer. The upper second bicuspid was chosen as the predictor tooth after the correlation matrices were computed.

It was concluded that 48% of …

Daily Temperature Rhythm In Hospitalized Female Patients, Phyllis L. Mcelmurry

Loma Linda University Electronic Theses, Dissertations & Projects

The study was designed to determine the hour when temperature peaks occur in adult hospitalized females, and to find if factors such as age and natural or surgical menopause with replacement therapy affect the thermal circadian cycle. Previous studies indicated that the temperature peak occurs in afternoon or early evening, but there were no investigations to determine if aging, sex, or menopause affects the temperature cycle.

The sample included 62 female patients, 29 between 21 and 62 years of age, and 33 between 65 and 90 years. Each subject admitted to the study was screened against fifteen qualifying criteria. Some …

A Post-Retention Study Of The Stability Of Lower Incisors Evaluated Cephalometrically, Robert W. Allen

Loma Linda University Electronic Theses, Dissertations & Projects

The purpose of this research was to determine if forward movement of the lower incisor in a horizontal plane during active treatment affected the post-retention stability. The post-active treatment position of the lower incisor in relation to APo plane, NB plane and mandibular plane was also studied to determine if it affected the post-retention stability.

To determine where the lower incisors were moved during treatment, the beginning cephalometric tracings were superimposed over the end of active treatment tracings on the Corpus Axis at Supra-Pogonion. The amount of change in the incisal edge was measured to the nearest millimeter on a …

The Relationship Of Locus Of Control Of The Diabetic Patient And Compliance With Medical Regimen, Lois Daniel

Loma Linda University Electronic Theses, Dissertations & Projects

The literature indicates that many diabetic patients do not adhere to their prescribed medical regimen and that there is a need to discover factors that stimulate compliant behavior. It has been proposed that the patient's decision to accept or reject treatment has many determinants. This study explored the effect of one such determinant, the locus of control (the source of the stimulus for a person's behavior). It was hypothesized that a person with an internal locus (one who believes his actions influence his future) would be more likely to comply with a medical regimen than one with an external locus …

Models For Estimating Psychiatric Bed Needs, Patricia A. Brenneman

Loma Linda University Electronic Theses, Dissertations & Projects

Inland Counties Comprehensive Health Planning Council wished to estimate the psychiatric bed needs by type (such as state hospitals, board and care homes, etc.) in San Bernardino County from the distributions of patient arrivals and of lengths of stay. A statistical description of the system during 1973 was considered the first step toward estimating future bed needs. A computer simulation model using IBM's programming language General Purpose Simulation System (GPSS) was developed and was found to be unsatisfactory.

Theorems were then developed for a statistical model, seeking to predict future bed needs. The most convenient of these theorems states that …