Dentistry Commons^™

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 …

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 …

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 …