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Biomedical subjects

A E Swanson

Publications and source records attributed to A E Swanson.

9 recordsLinked to original sources
PubMed1991

Incidence of inferior alveolar nerve injury in mandibular third molar surgery.

This paper documents the incidence of inferior alveolar nerve injury and resultant sensory disturbance encountered in the removal of 100 consecutive impacted mandibular third molars. Five cases of anesthesia and/or paresthesia resulted and all but one of these resolved within six months. The lack of direct correlation between surgical exposure of the neurovascular bundle intraoperatively and the proximity of radiographic images of tooth root and mandibular canal, with the occurrence of sensory deficit, is noted. Our findings support the 1979 Recommendations of NIHCDCRTM*, upon which the policy of informed consent regarding nerve injury was based.

Adolescent↗
PubMed1990

Prevention of dry socket: an overview.

Dentists, exodontists, oral surgeons, and now oral and maxillofacial surgeons have been plagued with a postextraction complication, commonly known as "dry socket," since the inception of our profession. Other designations that have been attached to this malady over the years include alveolar osteitis, postextraction osteitis, osteomyelitic syndrome, alveolar sicca dolorosa, and, latterly, fibrinolytic alveolitis. Myriad attempts to eliminate this painful condition have been made, to no avail. Nonetheless, significant progress has been made in an endeavor to reduce its incidence. Perhaps it is time to take an inventory of the proven methods that will assist the practitioner in reducing the incidence of this complication in his/her practice. This article presents a review of past investigations that appear to have merit in this regard, with a summary of recommendations at the conclusion of the article.

Anti-Bacterial Agents↗
PubMed1990

Oral inverted ductal papilloma.

A case of oral inverted ductal papilloma that appeared on the lower lip of a 44-year-old man is described. A literature review and discussion of the histopathologic features and histogenesis of this uncommon lesion of minor salivary gland origin are also presented.

Adult↗
PubMed1989

A double-blind study on the effectiveness of tetracycline in reducing the incidence of fibrinolytic alveolitis.

This study presents the results of a double-blind study evaluating the effectiveness of topical tetracycline used as a suspension in a square of gelatin sponge and placed in the sockets of extracted mandibular third molars for the prevention of dry socket. An assessment of the relationship between the amount of bone relief (trauma) incidental to the surgery and the occurrence of dry socket also is made. Dry socket occurred in 20.4% of the placebo-treated sockets, whereas the incidence in the tetracycline-treated sockets was 3.9%. No correlation was observed between the amount of bone relief attendant to the surgery and the incidence of dry socket. It is concluded that tetracycline is an effective prophylaxis for fibrinolytic alveolitis.

Double-Blind Method↗
PubMed1989

Removing the mandibular third molar: neurosensory deficits and consequent litigation.

Neurosensory dysfunction, on an iatrogenic basis, appears to be increasing at an alarming rate in the oral surgical section of dental practice. This is particularly so with respect to the impacted lower wisdom tooth. With changing social mores and more sophisticated consumerism, increasing litigious tendencies within the general population and a more informed public, there is a parallel increase in malpractice lawsuits related to this complication. This article presents the documentation supporting this impression and discusses methods of diminishing the likelihood of successful litigation against the dentist. Clinical aspects of mandibular third molar removal are explored with a view to surgical approach and anatomic awareness relevant to the subject. The current status of informed consent is presented, along with one example of a written form which might be applicable under the circumstances.

Canada↗
PubMed1986

The recalcitrant keratocyst.

The clinical enigma of appropriate management of the odontogenic keratocyst is a continuing controversy. The understanding of the pathology of the lesion has undergone a significant metamorphosis over the past 30 years. Certain research findings with respect to this lesion have set it apart from the classical odontogenic cyst, while histologic and clinical observations have made its behaviour reminiscent of the ameloblastoma. Despite its benign nature, its high recurrence rate begs the question of adequacy of treatment modalities to date. Fascinating theories have been put forward to account for its apparent resistance to conventional cyst therapy. Despite this, however, there is no unanimity as to pathogenesis or correct treatment methods. The case of a large odontogenic keratocyst of the mandible is reported and a detailed narrative of its apparently successful management by relatively conservative means is documented.

Adult↗