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Biomedical subjects

J B Bavitz

Publications and source records attributed to J B Bavitz.

13 recordsLinked to original sources
PubMed2000

The use of distraction osteogenesis to induce new suprabony periodontal attachment in the beagle dog.

Using a technique called distraction osteogenesis (DO), orthopedic surgeons are capable of reconstructing 4 to 5 cm of bone and soft tissue without bone grafts or pedicle flap procedures. DO has been used recently to generate maxillofacial bone as an alternative to maxillary and mandibular osteotomies. Using DO methodology, this study attempted to regenerate supraalveolar buccal periodontium on the mandibular second, third, and fourth premolars of beagle dogs. A small but statistically significantly greater amount of new cementum was generated in experimental teeth, with no difference found between experimental and control groups with respect to regenerating alveolar bone. Further studies using modifications of this technique are warranted to explore the potential of DO as an alternative to conventional regenerative approaches.

Alveolar Bone Loss↗
PubMed1998

Prosthodontic and surgical management of a patient with an osteoma of the temporomandibular joint.

Osteomas of the temporomandibular joint are rare. This article presents a case report delineating treatment of a partially edentulous patient using a team approach for an osteoma originating from the anterolateral aspect of the glenoid. The tumor was diagnosed with the aid of a panoramic radiograph and a computerized axial tomograph. Interim prostheses with anterior teeth and posterior teeth with nonanatomic occlusal surfaces were fabricated before surgery. After surgical excision of the osteoma, the interim prostheses were periodically adjusted as the mandibular condyle gradually shifted into the space that was previously occupied by the tumor. Final removable prostheses were fabricated after the condyle had stopped shifting.

Aged↗
PubMed1995

Bilateral mandibular subcondylar fractures contributing to airway obstruction.

Bilateral mandibular fracture contributing to airway obstruction is a well-understood phenomenon. This is typically described as a rather immediate or acute process. After trauma, the production of a "flail mandible" with concomitant loss of support of tongue muscles is thought to result in obstruction of the upper airway. An unusual case in which the bilateral mandibular fractures contributed to an airway obstruction 10 days after the initial trauma is described. The cause is explained and methods of prevention and treatment are presented.

Aged↗
PubMed1995

Emergency management of hypoglycemia and hyperglycemia.

The majority of diabetic medical emergencies can be prevented by proper preoperative instructions. New or emergency patients unable to receive such instructions are at higher risk, occasionally necessitating the prudent use of various agents to treat hypoglycemia. The signs and symptoms of hypoglycemia and hyperglycemia are reviewed, allowing one to make an educated differential diagnosis of the altered physiological state. Finally, some conditions are not preventable or treatable in the dental office, with notification of the emergency medical system being the indicated treatment choice.

Dental Care↗
PubMed1994

Arterial supply to the floor of the mouth and lingual gingiva.

According to many anatomy textbooks, the blood supply to the mandibular lingual gingiva and the floor of the mouth is derived from the sublingual branch of the lingual artery. Sometimes a variation exists in which the submental branch of the facial artery pierces the mylohyoid muscle to supply this region in addition to or in lieu of the sublingual artery. The purpose of this study was to detail the vascular supply to this region and to delineate the relative contribution and importance of the sublingual versus the submental artery in humans. A large branch of the submental artery that perforates through the mylohyoid muscle was found in 60% of the cases. The sublingual artery was found to be small, missing, or insignificant in 53% of cases. In these 53% of cases, a large perforating branch from the submental artery was present. Consequently, the submental artery can be considered the main arterial blood supply to the floor of the mouth and mandibular lingual gingiva. This study demonstrates the need to change the procedure of extraoral ligation for control of hemorrhage in the floor of the mouth. On the basis of the results of this study, the submental artery or its parent facial artery should first be ligated. Then, if bleeding is not controlled, the lingual artery should be ligated to insure satisfactory hemostasis in this region.

Aged↗
PubMed1993

An anatomical study of mental neurovascular bundle-implant relationships.

When five to six implants are used in a fixed reconstruction, it is desirable to place the most distal implant as close to the mental nerve as possible. This allows the cantilever of the fixed prosthesis to be extended posteriorly as much as is biomechanically feasible. Forty-seven mental nerve regions were dissected on cadavers to determine the exact relationship between the mental foramen, the inferior alveolar nerve, and its two terminal branches--the incisive and mental nerves. The most anterior position in which the mental nerve was encountered was 1 mm forward or mesial to the most anterior aspect of the mental foramen. Based upon this finding, it is likely that damage to the mental nerve can be avoided if the distal surface of the most posterior implant is 1 mm anterior to the anterior border of the mental foramen.

Bone Density↗
PubMed1992

Non-Hodgkin's lymphoma disguised as odontogenic pain.

A patient was treated for infraorbital swelling, nonvital teeth and a periapical lesion. Suspected malignancy, confirmed with an early biopsy, resulted in diagnosis of non-Hodgkin's lymphoma.

Dental Pulp Devitalization↗
PubMed1990

Naso-orbital-ethmoid injury: report of a case and review of the literature.

Trauma to the midface severe enough to cause nasal fractures will often result in fractures of the bony naso-orbital-ethmoid (NOE) complex. Extensive damage may be encountered in the interorbital area because of the fragility of the bony framework. The medial orbital walls, ethmoid sinuses, and cribriform area of the anterior cranial fossa can resist a maximum compressive force of only 30 g. NOE injuries are usually the result of either a direct blow sustained during an altercation or of a high-velocity motor vehicle accident. Quite often multiple systemic injuries serve to complicate treatment. NOE fractures present the surgeon with numerous challenges during repair. The delicate bony architecture, anatomic framework, and cosmetic expectations indicate comprehensive, thorough treatment. Damage to the eye, which is basically an extension of the brain, is of major concern. Pupillary discrepancies, retrobulbar hematoma, and damage to the optic nerve must be ruled out. Early surgical management is indicated because delayed repair or inadequate treatment prediposes the patient to defects that may be extremely difficult if not impossible to correct with secondary procedures. Numerous articles have been published describing the NOE injury. The multifaceted array of fractures seen in NOE injuries has been formulated into a comprehensive classification by Gruss.

Accidents, Traffic↗
PubMed1990

Malignant disease as temporomandibular joint dysfunction: review of the literature and report of case.

A case of a patient with a malignant schwannoma, who was originally diagnosed as having internal derangement of the temporomandibular joint (TMJ), is presented. This is only the second reported case of this tumor with TMJ symptoms. The importance of obtaining adequate TMJ radiographs as part of the initial data collection process is stressed. Computed tomography (CT) and magnetic resonance imaging (MRI) scans are suggested if the patient has any of the ominous signs or symptoms mentioned in the text. When a patient is initially diagnosed with TMJ disease, failure to respond to appropriate therapy should alert the clinician that the initial diagnosis may be incorrect.

Diagnosis, Differential↗
PubMed1989

Comparison between CO2 microsurgical laser and conventional meniscectomies in sheep: a preliminary report.

Temporomandibular discectomies were performed in sheep using a CO2 microsurgical laser as the experimental variable and conventional scissors and scalpels as the control. Histologic sections at 1, 3, 7, 14, and 30 days failed to reveal any significant difference between groups, nor was there any significant difference noted in the subjective evaluation of intraoperative bleeding. These findings suggest that when performing discectomies, the laser offers no advantage over conventional techniques.

Animals↗
PubMed1984

Hospital dentistry.

Explore the source record for details and available documents.

Dental Service, Hospital↗