Dentistry Commons^™

A Non-Human Primate Model For Studying Corticotomy-Facilitated Orthodontic Tooth Movement, R. David Rynearson

Loma Linda University Electronic Theses, Dissertations & Projects

This study was undertaken to test the hypothesis that a corticotomised tooth moves as a tooth-bone unit when under orthodontic force. A non-human primate model was designed to test the hypothesis. The non-human primate selected was Macaca fasicularis. Three adult males with erupted third molars were chosen so that extrapolation could be made to the adult human. The methods employed included the following: 1) Each animal had one treatment quadrant and one control quadrant per arch; 2) Pre-op and post-op study models were made; 3) All 2nd premolars, 2nd molars, and 3rd molars were banded; 4) A full-thickness flap …

Histologic Host Response To Polyoxymethylene Prosthesis As A Temporomandibular Joint Condylar Replacement, Frederick R. Mathews

Loma Linda University Electronic Theses, Dissertations & Projects

Polyoxyinethylene (Delrin) is a polyacetyl homopolymer which has been used successfully in many orthopedic joint replacements. To determine histologic host response to Delrin as a temporomandibular joint condylar replacement condyles were removed from ten fully mature macaca fasicularis monkeys. The condyles were replaced with a total prosthetic Delrin condyle attached to a titanium mesh. Specimens obtained at one, two, and six months indicated total acceptance of the Delrin, remodeling of the glenoid fossa and formation of bone between the middle cranial fossa and the roof of the glenoid fossa. These findings would indicate Delrin is a viable option for condylar …

The Use Of Dura Mater As A Meniscus Replacement In Tmj Surgery, Kim J. Dipasquale

Loma Linda University Electronic Theses, Dissertations & Projects

Internal derangement of the temporomandibular joint is recognized as a problem of significant magnitude in both medical and dental circles. The last decade has seen a steady progression in the knowledge and sophistication of not only the anatomy and physiology of the temporomandibular joint, but also in the techniques of non-surgical and surgical management of internal derangements. Surgical correction of the unrepairable disc has typically been addressed by performing a menisectomy followed by placement of a non-physiologic implant material.

The animal study reported here was performed in order to evaluate the histologic fate and biological compatibility of freeze-dried dura when …

Effects Of Lateral Mandibular Expansion On Mandibular Morphology In The Growing Rat : A Comparative Study Of Treatment Effects With Orthopaedic And/Or Surgical Procedures, Eric Looi

Loma Linda University Electronic Theses, Dissertations & Projects

The purpose of this study was to investigate the effects of mandibular expansion by orthopaedic and surgical procedures in the growing rat mandible.

Sixty-four 35 day old Sprague Dawley Harlan rats were divided into four groups of 16 rats each and categorized as the control, orthopaedic expansion, surgery without graft and surgery with graft respectively. Prefabricated appliances were used for orthopaedic expansion of the mandibles and maintaining surgical expansion at the symphysis in the respective groups. Oxytetracycline were given intraperitoneally to mark areas of bone remodeling. Half the number of rats from each group were sacrificed at the end of …

Corticotomy Facilitated Orthodontic Treatment In Adults : A Report Of Two Cases, Randall E. Hoff

Loma Linda University Electronic Theses, Dissertations & Projects

The corticotomy procedure is a surgical technique that has been used to facilitate orthodontic treatment for many years. Proponents of this technique contend that occlusal results are more stable and treatment time is reduced. In this study, two cases of dento-alveolar abnormality are presented that were successfully treated in a relatively short time by using the combined efforts of the surgeon and the orthodontist. Although corticotomy has limited applications, it has a place in the armamentarium of the modern orthodontist.

Key Words: Corticotomy, Adult Orthodontics, Osteotomy.

Stability In Mechanical Expansion Of The Maxilla With Surgical/Mechanical Expansion Of The Mandible In An Adult Baboon, Robert D. Mitchell

Loma Linda University Electronic Theses, Dissertations & Projects

Expansion of the maxilla at the midpalatal suture has had much investigation and is a recognized option in orthodontic therapy. Lateral expansions of the mandible through surgical separation at the symphysis have been done in animal studies. A combination of these procedures has not yet been done together.

The purpose of this study was to expand both the maxilla and the mandible of a baboon simultaneously while maintaining occlusion. The amount of expansion and stability was studied using photographs, models, cephalograms, and tetracycline bone labels using U.V. microscopy.

A young adult baboon with full dentition and normal occlusion was used. …

Healing Following Two Different Surgical Approaches To Treating Deep Periodontal Intraosseous Defects, A. Durwin H. Chamberlain

Loma Linda University Electronic Theses, Dissertations & Projects

Surgical treatment of deep periodontal pockets associated with intraosseous defects has traditionally been performed either with or without resection of the osseous defect. A non-resective approach may provide more gain of attachment while a resective approach may give better pocket reduction. The increased pocket reduction following osseous resection is probably accomplished at the expense of some attachment loss in areas involved by the surgical procedure. Previous studies have compared periodontal surgery with and without osseous resection (i.e. Rosling et al. 1976, Knowles et al. 1979 and Smith et al. 1980). However, the effect of osseous resection does not seem to …

Observation Of Bone Formation In The Mandibular Symphysis Following Surgical Separation And Slow Mechanical Expansion In A Baboon, Robert J. Homer

Loma Linda University Electronic Theses, Dissertations & Projects

Mechanical expansion of the maxilla, at the midline suture, is a widely accepted orthodontic procedure used to gain arch width in certain types of maxillary deficient arches.

In animal research on the mandible, techniques using surgical separation at the symphysis with immediate expansion up to 12 mm, fixation with a metal splint, and autogenous bone transplanted into the expanded area, have been reported to be successful.

To date, no experiment utilizing slow mechanical expansion of the mandible at the symphysis has been reported.

In this pilot study, the mandible of a female baboon was surgically separated A-P at the symphysis. …

The Effects Of Orthodontic Repositioning Into A Surgically Expanded Site On Bone Formation And Tooth Mobility In A Baboon, Anthony B. Lier

Loma Linda University Electronic Theses, Dissertations & Projects

For sometime, expansion of the maxillary arch, by means of surgical and mechanical procedures, have been acknowledged with minimal attention directed toward the mandible. In this pilot study a surgical technique was employed in separating the mandible, A-P, at the symphysis. The interosseous void, approximately 10 mm., was then filled with autogenous bone marrow collected from the greater trochanter and the crest of the ilium.

The surgical site was then maintained for a period of eight (8) weeks with the aid of a precast chromium-cobalt splint and titanium mesh placed intradentally and at the symphysis, respectively. Following the stabilization period …

Cineradiography Of The Temporomandibular Joint : A Research Entity And Diagnostic Modality, L. Albert Lewis

Loma Linda University Electronic Theses, Dissertations & Projects

Readily accessible equipment as utilized for cineangiography has been demonstrated to be useful in producing dynamic studies of the temporomandibular joint.

The reproducible studies have been obtained without adaptation of equipment. Methods used in this project were based on principles which have been advocated for the past thirty years for static radiographs of the temporomandibular joints.

Studies were made of a variety of subjects varying in size and joint integrity. Diagnostic views were obtained on all subjects showing normal osseous joint structures and typical joint function via the use of motion picture records. Changes in osseous joint structures were readily …

An Ultra-Violet Light Microscopic Study Of The Hydroxylapatite Ceramic-Bone Interface Phenomena, Leonard W. Pierce

Loma Linda University Electronic Theses, Dissertations & Projects

Preparations used in this study were obtained from an investigation which had undertaken the following:

Durapatite, a hydroxylapatite ceramic was implanted in 24 mature Beagle dogs to study its maintenance effect on the alveolar bone of the mandible.

After dividing the dogs into two groups, a fresh socket and a healed socket group, the posterior teeth were removed and alveolectomies were performed. Eight ceramic implants were then placed in the right mandible of each animal in each group. The healed group received the implants five weeks after tooth removal and the fresh socket group received implants immediately after extraction.

The …

What To Do After The Extraction Of A Tooth (1977), American Dental Association

Patient Dental Health Education Materials 1929-1981

No abstract provided.

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 …

Verrucous Carcinoma Of The Oral Cavity, Lane C. Thomsen

Loma Linda University Electronic Theses, Dissertations & Projects

This paper describes 39 cases of oral verrucous carcinoma. This study reports on 20 cases from the San Diego Tumor Group and 19 cases from the Oral Pathology Service which showed the characteristic features of verrucous carcinoma. Twenty three patients were men and 16 were women. In the majority of the cases the lesion was exophytic and had a papillary surface. The buccal mucosa and gingiva were the sites most frequently involved. The characteristic histologic pattern consisted of keratinized well-differentiated epithelium exhibiting irregular folds. In addition there was an inward projection of bulbous rete ridges. Surgical excision was the treatment …

A Screening Psychological Evaluation Of Patients With Temporomandibular Joint Dysfunction Or, Let's Evaluate The Personality Along With The Radiographs, William A. Woods

Loma Linda University Electronic Theses, Dissertations & Projects

In this study a lateral transcranial oblique TMJ radiographic series and a psychometric test were used in the initial diagnosis of twenty four patients presenting with pain and dysfunction of the TMJ area. It was found that the two diagnostic tests could be done practically in the dental office. The results of the two tests combined with history, and clinical findings gave the doctor the ability to make a more discriminating diagnosis. The doctor then had increased insight into the patients' expected response to treatment. He could also predict problem patients on the basis of their personality type. This gave …

Cephalometrics For The Oral Surgeon In The Diagnosis Of Facial Deformities, Frederick J. Mantz

Loma Linda University Electronic Theses, Dissertations & Projects

Surgical orthodontics presents a challenge to the oral surgeon. By the nature of the oral surgeon's training and discipline he should be the one best qualified to treat the surgical aspect of the surgical orthodontic case. The establishment of a proper diagnosis and means of communication between the oral surgeon and orthodontist are essential in achieving a good final result for the surgically treated case. Fortunately, a scientific method of diagnosis is available that can provide both specialties with a common language. Computerized cephalometric analysis can provide the diagnosis and link of communication for the discussion of goals and treatment. …

Value Of Oxygen With Innovar And Methohexital For Outpatient Oral Surgery, Andrew D. Harsany

Loma Linda University Electronic Theses, Dissertations & Projects

This paper demonstrates the value of oxygen in maintaining arterial blood gas in an adequate range during outpatient oral surgery. Dental extractions were completed on ten patients under an anesthetic technique utilizing Innovar and methohexital with supplemental nasal oxygen. Blood gas samples were drawn at five stages during the procedure.

The mean of the PaO₂ samples drawn with the patient at the point of deepest sedation was approximately three times the normal value.

Oxygen for pulmonary ventilation provides a reservoir in the lungs, saturation of hemoglobin, and increased oxygen in the plasma which provides a margin of safety if …

What To Do After Extraction Of A Tooth (1972), American Dental Association

Patient Dental Health Education Materials 1929-1981

No abstract provided.

An Anesthetic Technique Utilizing Innovar, Fentanyl, And Methohexital Sodium For Outpatient Oral Surgery, Fredric D. Haerich

Loma Linda University Electronic Theses, Dissertations & Projects

A study of 800 patients ranging in age from seven to one hundred years was conducted in the development of an anesthetic technique which combines the desirable qualities of a neuroleptic agent with the requirements of an outpatient oral surgical anesthetic. These requirements included rapidity of onset, effectiveness of action, ease of controlling duration, and rapid postoperative recovery.

Patients who were cleared medically for outpatient procedures were given Innovar 1.5 cc/150 lb of body weight, atropine 0.4 mg, and fentanyl 1.0 cc/150 lb of body weight as an initial dose within 30-45 seconds in a D5W drip by means of …

A Technique For The Experimental Production Of Dry Socket In The Cat And An Evaluation Of Numerous Potential Etiologic Factors, Thomas F. Scott

Loma Linda University Electronic Theses, Dissertations & Projects

Dental dry socket has been attributed to a variety of etiologic factors without basic science research. Before a systematic attempt could be undertaken to determine the initiator/s of dry socket, if such exists, an experimental technique had to be developed which could consistently produce dry socket. A dental extraction socket infusion technique was developed with the cat that enabled the investigator to study some of the initiating factors which have been previously suggested as possible etiologic causes for the production of dry socket.

From the present study such factors as trauma, age, sex, site and number of extractions, lack of …

Vital Apical Cortical Marginal Ostectomy, Elbert W. Clark

Loma Linda University Electronic Theses, Dissertations & Projects

The dentition has been suspect as an unfavorable influence in the healing potential of the jaws. Today, many surgical procedures are based on the supposition that teeth should be avoided, endodontically treated, or removed from the sphere of tissue infliction. On the other hand, and abundant blood supply and osteogenic capability have been recognized as favorable factors in repair.

An extra oral removal of an osteoid osteoma from the body of the mandible of a thirty-year-old female resulted in vital apicoectomies of her molar teeth as well as the removal of the medullary blood supply. An uneventful course of healing …

Mandibular Nerve Regeneration Through Solid And Canalized Bone And Plaster Grafts, Lawrence D. Day

Loma Linda University Electronic Theses, Dissertations & Projects

Utilizing an extra-oral approach and sterile technique, left mandibular ostectomy was performed on five miniature pigs. The segment removed was 3 cm long and included the inferior border, mandibular canal and, in some cases, apices of a molar tooth.

Bone and plaster grafts (one solid and one canalized of each) were used to fill these defects. The fifth was left with no graft.

The objective was to learn the effect of each of these procedures on regeneration of the mandibular nerve across the defect. It was hypothesized that canals through the grafts would facilitate regeneration.

X-rays were taken periodically. The …

Analgesic Effectiveness As Measured By A New Algesiometer, J. Raymond Wahlen

Loma Linda University Electronic Theses, Dissertations & Projects

A method of measuring the effectiveness of analgesics using a new instrument, known as the Algesiometer,* is described. The instrument, utilizing an electrical stimulus, produced an experimental pain when attached to the skin over the mid shaft of the tibia. The patient, who was experiencing a pathological pain, gradually increased the experimental stimulus, by turning a control rheostat, until it was equal in intensity to the pathological, or clinical, pain. The intensity of the stimulus was calculated in milliwatts and consisted of a rectangular wave pulsating direct current of approximately one millisecond duration and an interval of nineteen milliseconds.

Following …

The Effect Of Removing The Crevicular Epithelium Upon Canine Tooth Replantation, Leon A. Leonard

Loma Linda University Electronic Theses, Dissertations & Projects

The nature of epithelium and the remarkable facility with which it aggressively covers granulation tissue, suggests that removal of the sulcular epithelium surrounding the extraction wound of a tooth to be replanted could promote reattachment of the periodontal tissues at a more nearly ideal coronal level. To investigate this hypothesis twenty mature teeth in five mongrel dogs were experimentally replanted. One half of them were replanted in alveoli around which the crevicular epithelium had been removed, the remaining teeth without creviculoectomy acting as controls. Animals were euthanized at one, two, three, five, and sixteen weeks. After clinical evaluation of the …

Oral Bandage Tissue Reaction In Dogs, John Rozema

Loma Linda University Electronic Theses, Dissertations & Projects

This experiment was designed to evaluate an oral surgical dressing which may be used as an aid to healing tissue. The parameters of evaluation were directed toward wound healing enhancement, duration, and stability of the bandage. A histological evaluation of the surgical wounds protected with the bandage as compared to the control wounds was made.

The surgeries were performed on eight dogs in a double controlled experiment and were in the form of bilateral maxillary gingivectomies and mandibular molar tooth extractions. The surgery sites on the left were covered with the Orahesive Bandage while the right side remained exposed to …

A Comparison Of The Toxohormone Content Of Human Malignant Tissues, Laurence Lowell Mccarthy

Master's Theses

No abstract provided.

What To Do After Extraction Of A Tooth (1963), American Dental Association

Patient Dental Health Education Materials 1929-1981

No abstract provided.

Research In Oral Surgery; An Editorial, Fred A. Henny

Henry Ford Hospital Medical Journal

No abstract provided.

What To Do After Extraction Of A Tooth (1957), American Dental Association

Patient Dental Health Education Materials 1929-1981

No abstract provided.

Can Pyorrhoea Be Cured?, Albert Richard Moeder

Bachelors’ Theses

Pyorrhoea is one of the best known and commonest diseases in civilization. A certain dental company is advertising that four out of five are infected by this disease. This company has been lenient in their accusation, as men who are ardent students of pyorrhoea state specifically that 90 per cent of the world’s population have it in some form or other or have symptoms which would eventually turn into pyorrhoea. Knowing this and knowing also the results and unnecessary pain and discomforts that are produced, every individual should respect and fear this disease accordingly.