Medicine and Health Sciences Commons^™

A Clinical And Microscopic Evaluation Of Plaque Removal And By The Hydrodent Brush, Soertini E. Lambri

Loma Linda University Electronic Theses, Dissertations & Projects

The Hydrodent toothbrush was compared to conventional toothbrush (Lactona # 19) in its effectiveness on removing the plaque, eliminating the pocket depth, and improving the gingival tissue condition.

Forty six male and female subjects with the age range of 18 to 50 years old participated in a 5 month study with 4 week intervals. Each subject received a Hydrodent brush of soft, medium, and hard textures and a conventional toothbrush. The toothbrushes were given randomly and the subject served as his own control.

Clinical and histological evaluations were made after the use of each toothbrush. The clinical evaluation showed some …

Relationship Of Ventilation Ability And Positioning In Left-Sided Congestive Heart Failure Patients, Nancy E. Carson

Loma Linda University Electronic Theses, Dissertations & Projects

Proper positioning is used to relieve dyspnea, edema, and fatigue in congestive heart failure patients. According to the review of literature, improved ventilation as measured by specific lung volumes and lung mechanics occurred with upright positioning in normal persons. The effects of specific changes in lung volumes related to position change in congestive heart failure patients has not been documented in literature, although various recommendations related to positioning are made. This exploratory study was undertaken with nine congestive heart failure patients to see if a relationship existed between degree of head elevation and lung ventilation ability as measured by water-bell …

Cold For Relief Of Postoperative Limitation Of Activity Due To Incisional Pain, Haroldine Roberts

Loma Linda University Electronic Theses, Dissertations & Projects

This study was concerned with testing the effectiveness of cold to aid the cholecystectomy patient in performing certain selected activities usually inhibited by incisional pain.

Available references of the effects of cold on the abdominal area were studied to formulate a method of approach as no previous methodology was found in the literature.

The experimental method of research was used on a sample of 18 cholecystectomy patients meeting the criteria for the study, independent variable for the 10 patients in the experimental the application of cold over the closed incision, plastic bag covered with one thickness of towel was used …

Sensory Stimulation To Influence Body Awareness In The Adult Hemiplegic Patient, Sue Carol Bradley

Loma Linda University Electronic Theses, Dissertations & Projects

An experimental study was conducted in four convalescent facilities using fourteen CVA patients with body scheme disturbances. The study was done to test the hypothesis that the experimental technique of light touch sensory stimulation as supplied by fast brushing to the skin dermatomes C 5, 6, 7, and 8 of the affected arms would increase the scores of the subjects in the experimental group.

Patients were assigned via a random process to the experimental or control groups if, upon taking the MacDonald Test of Body Scheme, they obtained a score of 39 or below. Subjects in the experimental group received …

The Relationship Between The Lingual Surface Of The Maxillary Central Incisor And The Eminence Of The Mandibular Fossae, Robert A. Huffer

Loma Linda University Electronic Theses, Dissertations & Projects

Gnathologists have suggested that in order to prevent excessive wear on posterior teeth, alveolar bone loss due to traumatic occlusion, and temporomandibular Joint (TMJ) disturbances, the mandibular incisors should disclude the posterior teeth by moving along the lingual surfaces of the maxillary incisors as the condyles move down the articular eminence in protrusion. It is suggested that in order for this to occur, the lingual surface of the maxillary incisors should be steeper than the eminence.

A cephalometric technique was developed to accurately determine the anatomical form of the articular eminence. A regular orthodontic tracing of the head was done …

A Study To Demonstrate The Immediate Destination Of An Embolus Formed In The Lumen Of A Peripheral Venous Catheter, Rosemarie Morikone Emori

Loma Linda University Electronic Theses, Dissertations & Projects

This study was designed to show the immediate destination of an embolus formed in the lumen of an intravenous catheter placed in a peripheral vessel. The hypothesis stated that clots injected into a peripheral vessel will lodge in the lungs. A subhypothesis was that the clot may lodge anywhere along the circulatory pathway.

Indications of need for the study as shown by the review of literature were the following: (1) the complications resulting from the frequent use of intravenous polyethylene catheters, (2) experimental studies that showed that clots were formed around intravenous catheters, (3) the evidence that intravenous catheters predispose …

A Comparative Roentgenographic Cephalometric Study Of The Facial Profile Of Orthodontic Patients Treated At Loma Linda University With Winners Of The "Smiles Of The Year" Contest, Romeo I. Stoll

Loma Linda University Electronic Theses, Dissertations & Projects

The "Smiles of the Year" winners and patients treated at Loma Linda University by the extraction or non-extraction approach were compared by linear and angular variables of skeletal, dental and soft tissue components. These findings were analyzed statistically to determine significant differences in the profile and detect the relationship between the integument and hard structures.

The following conclusions were drawn from this investigation to reflect the trend of treatment at Loma Linda University.

1. After treatment the patients had less skeletal convexity, but were more convexity than established standards.
2. The incisors of the patients treated by the extraction approach were less …

Sensory Stimulation To Produce Micturition In The Cerebral Vascular Accident Patient, Mary Alice Pearce

Loma Linda University Electronic Theses, Dissertations & Projects

An experimental study was conducted in a university and a convalescent hospital using eight female CVA patients with urinary incontinence to test the hypothesis that the experimental technique of icing and brushing LI dermatome skin area would increase the probability that the CVA patient would void within a prescribed time and place. A modified one group method was used in which the patient served as her own control by participating in two types of bladder training programs over an eight to twelve hour period for four consecutive days. Program A used the experimental technique; Program B omitted the experimental technique. …

The Role Of The Articular Eminence In Mandibular Protrusion, Norman E. Corbett

Loma Linda University Electronic Theses, Dissertations & Projects

Since movements of the TMJ may be translatory, rotary, or both, the form of the articular eminence becomes an integral part of the anatomy of the joint and is important in an understanding of TMJ function. A cephalometric technique was developed to accurately determine the anatomical form of the articular eminence. From a series of cephalograms, taken in various mandibular positions, the protrusive condylar path was determined. This path was also determined from a gnathological recording technique. The paths obtained were observed to be the same. The condylar path and articular eminence curves were mathematically expressed by computer programmed quadratic …

An Analysis Of Orthodontic Treatment Results Employing Class Ii Armstrong Adjustable Intermaxillary Springs, Michael E. Shumate

Loma Linda University Electronic Theses, Dissertations & Projects

A study of orthodontic treatment results employing Class II Armstrong Adjustable Intermaxillary Springs was made on twenty-eight randomly selected patients which were treated by Dr. Maclay Armstrong.

The skeletal and dental changes observed during treatment with the Class II springs was compared with those results observed when comparable type malocclusions were treated with Class II elastics. A list of changes which were observed during treatment with Class II elastics was compiled from the literature using individual studies published by Ricketts, Creekmore and Hanes.

The study was based on the findings observed in the initial and final cephalometric radiographs. A statistical …

Periodontal Pocket Reduction Following Gingival Curettage, Robert B. Tandy

Loma Linda University Electronic Theses, Dissertations & Projects

The purpose of this study was to evaluate pocket reduction following gingival curettage. The effects of temporary pressure packing, inflammation, oral hygiene, pocket depth, age and sex of the patient were evaluated.

Three hundred twenty-eight periodontal pockets were studied in forty-one adult patients selected with interdental lesions ranging from 3.0 - 7.5 mm. in depth. Pocket depth and gingival height were measured preoperatively, one month postoperatively and two months postoperatively. The mean change in pocket depth and gingival height was calculated and statistical significance was determined for all measurements.

The results show that after a two-month postoperative evaluation following gingival …

The Purification, Properties And Subunit Structure Of Glycerol Dehydrogenase, Michael James Barrett

Theses and Dissertations (ETD)

The inducible, NAD-linked glycerol dehydrogenase (E.C. 1.1.1.6) of a guanine requiring mutant of A. aerogenes has been purified to homogeneity. The molecular weight of the pure enzyme was found to be 3.4 x 10⁵ daltons. The sedimentation coefficient of the enzyme was 10.7 x 10^-13 sec.^-1. The diffusion constant was 3.07 x 10^-7 cm²/sec.

The partial specific volume calculated from the amino acid composition was 0.72 ml/g. The following kinetic parameters were determined; K_m glycerol, 2.4 x 10^-3 m, K_m NAD, 2.8 x 10^-4 M, K_m dihydroxyacetone, 5.1 …

Correlation Of The Actual Position Of The Root Canal Filling In Human Teeth To Its Apparent Location On The Radiograph, Dominic J. Niccoli

Loma Linda University Electronic Theses, Dissertations & Projects

Human teeth mounted in individual plaster blocks were studied to determine the actual location of the root canal filling when it appears to be exactly at the radiographic apex. The original sample consisted of 109 teeth treated during endodontic technique class by junior dental students at Loma Linda University. In the most ideal manner possible, these teeth were radiographed on a flat surface with the x-ray tube perpendicular to the film and blocked tooth.

Five dentists examined the radiographs, and each one independently listed the canals he judged filled exactly to the radiographic apex. The investigator sorted out the choices …

Masseter Muscle Position Relative To Skeletal Open Bite And Skeletal Closed Bite, Alonzo David Proctor

Loma Linda University Electronic Theses, Dissertations & Projects

Modification of cephalometric roentgenographic procedures provided a means to identify the anterior borders of the right and left masseter muscles and relate them to surrounding dentoskeletal elements. Attachment of short, stiff, wires to the cheeks in a position superficial to the anterior borders of the muscles, subsequent to palpation and prior to exposure of the roentgenographic film, was the procedure used. The bi-lateral images projected on the film were averaged and traced along with dentoskeletal elements including those associated with skeletal type. This line representing the anterior border of the musculature was used to assess muscle position in the vertical …

The Advantages Of A Condyle-Gnathion Reference Line In Roentgenographic Cephalometry, Ernest N. Chan

Loma Linda University Electronic Theses, Dissertations & Projects

Evaluation of the cephalograms of 150 patients showed a wide range in the angulation of the lower border of the mandible to the various facial planes. The degree of this angulation did not always correspond with the severity of malocclusion. Group I represents normal occlusions, Group II comprises malocclusions.

A new reference line is submitted for the investigation of its advantages in cephalometric roentgenography. The mandibular radius drawn through the geometric center of the condyle to the point gnathion is correlated with several indices of facial growth, namely (1) ANB difference, (2) upper facial:lower facial height and (3) PoNB distance …

The Development Of An Instrument For Three Dimensional Analysis Of Micron Quantities Of Tooth Movement, M. Clark Lamberton

Loma Linda University Electronic Theses, Dissertations & Projects

In order to quantitate initial tooth movement in response to forces applied to the tooth crown, an instrument for intraoral use has been developed. The photomicrometer consists of nine photosensitive cells mounted in an assembly of two layers. Eight of the cells were mounted to form X and Y axes, top layer and bottom layer, to measure horizontal movements. The ninth cell was mounted in the center of the bottom layer and was used for alignment and for measurements in the Z or vertical axis. The photocell assembly was approximately 10 mm diameter and 6 mm high. This assembly when …

Sex Determination By Cephalometry And Odontometry, Clair R. Hopkins Jr.

Loma Linda University Electronic Theses, Dissertations & Projects

Plaster casts of teeth and lateral cephalometric roentgenograms were studied to see with what degree of accuracy sex could be determined. The sample considered was made up of one hundred and forth-four individuals--50 males and 94 females--being treated in the Graduate Orthodontic Department of the Loma Linda University School of Dentistry. The age range for the boys was from 15 to 19 and for the girls, from 14 to 20. Data was obtained for the following variables from tracings of the roentgenograms and from the dental casts:

1. Glabello-occipital length
2. Articulate to nasion
3. The gonial angle of the mandible
4. Prosthion to …

A Methodology For The Determination Of The Relationship Between Quantitative Occlusal Forces And The Masticatory Muscles, William Melvin Taskey

Loma Linda University Electronic Theses, Dissertations & Projects

[Abstract Not Included]

Mandibular And Alveolar Growth In Dog Following Infusion Of 5-Fluorouricil, Richard D. Pfeiffer

Loma Linda University Electronic Theses, Dissertations & Projects

The action of a chemotherapeutic agent as a tool in studying its effect upon a primary growth center, the mandibular condyle, was investigated. So far as can be ascertained, no studies have been reported where these growth sites have been eliminated or modified by the use of chemotherapeutic growth inhibitors.

Observation of mandibular and alveolar growth following the infusion into the left external carotid artery of a cancer chemotherapeutic agent, 5-Fluorouricil (Roach-Hoffman), was noted. Comparisons were made between the infused and the uninfused sides of the mandible observing gross growth changes.

Four dogs, aged 75 days, were infused with varying …

A Method To Determine Curved Surface Laminagraphic Width And Position In Panoral Radiography Utilizing The Panorex X-Ray Unit, Gary G. Morikone

Loma Linda University Electronic Theses, Dissertations & Projects

Although the Panorex X-ray unit has been in existence for almost a decade, no information is publicly available relative to the determination of its laminagraphic slice width or position.

In order to utilize the machine most effectively as a research tool, it seems imperative that this width and position be established.

For the purpose of establishing the spatial relationship within the exposure mechanism, the two eccentric rotational axes were first located. Utilizing a positioning device, ten panoral radiographs of a plastic working dummy with metallic implants were exposed at varying exposure readings. The resultant radiographs, revealing varying degrees of accuracy …

Using A Computer Model To Study The Force Distribution On The Root Of The Maxillary Central Incisor, E. Jan Davidian

Loma Linda University Electronic Theses, Dissertations & Projects

A computer model of a human maxillary central incisor was devised to predict the momentary center of rotation of a tooth when a force was applied to the crown. The root of a tooth was divided up into a series of small segments to simulate the resisting forces set up along the root by the periodontal fibers. Each segment was assumed to resist a force in proportion to its area.

To study a tooth in a state of static equilibrium, two conditions must be met. The vector sum of all the forces acting on the tooth must equal zero, and …

What Nursing Personnel Know About Identifying The Signs Of Increased Intracranial Pressure, Naomi Bullard

Loma Linda University Electronic Theses, Dissertations & Projects

This study was concerned with finding out how much nursing personnel know about identifying signs of increased intracranial pressure and what understanding they have regarding the importance of prompt reporting of these signs.

A statement was prepared describing what the registered nurse, the license vocational nurse and the nursing assistant should know. This was validated by a panel of experts.

A two part questionnaire was developed from this statement. Part I asked for an essay response regarding the definition, causes, signs and symptoms and the nurse responsibility in intracranial pressure. Part II presented situations to which best answers were to …

An Odontometric Study Of Five Contemporary Western United States Indian And Alaskan Eskimo Groups, John A. Matis

Loma Linda University Electronic Theses, Dissertations & Projects

The morphologic characteristics of the oral cavity in five contemporary Western Indian and Alaskan Eskimo groups have been investigated by the use of study models of the dental archs. The sample consisted of 216 individuals, including 44 Navajos, 43 Apaches, 40 Papagos, 42 Pimas and 47 Alaskan Eskimos.

The first purpose of the study was to determine the extent of investigator error. This was accomplished by remeasuring many morphologic traits of the dentition in 125 Indians which had previously been measured by different investigators using the same study models. It was found that investigator error can be significant, even in …

Biochemical Properties Of Salmonella Potsdam Bacteriophage P4/2, Clyde L. Roggenkamp

Loma Linda University Electronic Theses, Dissertations & Projects

Over 90% recovery of phage P4/2 was realized with differential centrifugation concentration and purification, whereas only about 16% was recovered from the aqueous two-phase polymer - Genetron - ECTEOLA-cellulose column system. Purity of preparations was greatest with the density gradient centrifugation (A₂₆₀ = 2.66 and A₂₈₀ = 1.80 per 10¹² plaque-forming units). With the chemical system of concentration and purification followed by an ECTEOLA anion exchange run, the A₂₆₀ was 6.6 and the A₂₈₀ was 4.3.

Three tests were employed to determine the configuration of P4/2 DNA: (1) a formalin denaturation test, (2) a thermal …

Survey Of Knowledge Of Fifty Registered Professional Nurses Regarding Selected Factors Of Indirect Blood Pressure Measurement, Audrey Gayle Krueger

Loma Linda University Electronic Theses, Dissertations & Projects

This study was concerned with determining the knowledge registered professional nurses had regarding selected factors that contributed to variations in the indirect measurement of blood pressure. It was thought that assessment of the nurses' knowledge could contribute to more effective nursing services by disclosing areas of weakness which could be strengthened by hospital in-service and nursing education. Literature was reviewed on the methods of measurement in current use, common errors encountered in indirect measures, and selected factors that influence blood pressure readings, i.e., cuff width, emotions and activities, obesity versus thinness, position of the subject, inflation and deflation of cuff …

Antibiotics And The Wasting Disease In Neonatally Thymectomized Rats, Douglas M. Grignon

Loma Linda University Electronic Theses, Dissertations & Projects

The administration of the antibiotic, Chloramphenicol, to pregnant rats just prior to, and for four days after delivery, diminishes the incidence of the so-called "Wasting Disease" in neonatally thymectomized rats.

A total of 50 rats were divided into the following groups:

1. Thymectomy only---nonmedicated 17 rats
2. Thymectomy only---medicated 12 rats
3. Thymectomy-adrenalectomy---nonmedicated 5 rats
4. Thymectomy-adrenalectomy---medicated 8 rats
5. Controls---nonmedicated 4 rats
6. Controls---medicated 4 rats

Chloramphenicol was administered in the drinking water to the mothers of groups 2, 4 and 6 for about 2 days prior to delivery and 4 days after. On the day of birth or within three days after birth, the …

A Study Of The Relationship Between Preoperative Anxiety And Postoperative Vomiting, Taye Grace Emori

Loma Linda University Electronic Theses, Dissertations & Projects

The identification of anxiety as a causative factor in post operative vomiting was the purpose of this study. It was hypothesized that the more anxiety a patient experienced before surgery, the greater would be his chances of vomiting immediately after surgery.

The establishment of an underlying basis and need for a study of the relationship of anxiety and postoperative vomiting were made through a review of literature. The factors which researchers believed were contributory to postoperative vomiting and the possible inclusion of anxiety as one of them were studied.

Three physiologic measures (systolic blood pressure, heart rate, and eosinophil count) …

Root Surface Area Related To Anchorage In The Begg Technique, Donald Copeland Freeman

Theses and Dissertations (ETD)

Almost two hundred years ago Hunter recognized the necessity of extracting teeth to ’’procure room for the others which are to be brought into the arch.” He further noted that, ”To extract an irregular tooth would answer but little purpose if no alteration could be made in the situation of the rest.”¹

Extraction of selected teeth to gain room for the proper placement of the rest, and the subsequent procedures to utilize this space to the utmost advantage, have been integral parts of orthodontic treatment for many years.

Strang and Thompson² stated that the ability to manipulate any …

Nurse Attendance Versus Use Of Analgesic Medication In The First Stage Of Labor, Jo Ann Soulé Henriksen

Loma Linda University Electronic Theses, Dissertations & Projects

To determine if the woman who receives the continuous attendance of a nurse during the first stage of labor requires less analgesic medication than the woman who is given interrupted or intermittent nursing care, a study was made employing the experimental method with the parallel-group technique. Thirteen patients meeting the criteria of the study who received continuous nursing attendance during the first stage of labor by the nurse researcher were closely matched to thirteen patients from a group of one hundred seventy-three, whose nursing care was given by the staff personnel. As an objective method of assessing support during labor …

A Comparison Of Axillary And Rectal Temperatures In Children, Doris Payne

Loma Linda University Electronic Theses, Dissertations & Projects

This study was conducted on seventy-five children, three to eight years of age. The purpose was to compare a three-minute axillary with a three-minute rectal temperature. Known factors which might influence the findings were eliminated. These were emotional stress, physical exercise, antipyretic medications, cooling and heating measures, gastro-intestinal disturbances, and croupettes or oxygen tents. The range of the difference between the temperatures was from 0.8 degrees to 2.2 degrees with the mean difference of 1.13 degrees. A little less than half of the temperatures had one degree of difference. An additional thirty-two per cent were within 0.2 degrees of being …