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Biomedical subjects

B R Pynn

Publications and source records attributed to B R Pynn.

At least 19 recordsLinked to original sources
PubMed1998

Presence of impacted teeth as a determining factor of unfavorable splits in 1256 sagittal-split osteotomies.

OBJECTIVES: The purpose of this study was to determine the incidence of unfavorable mandibular fracture in sagittal-split osteotomies in the presence or absence of impacted third molar teeth. STUDY DESIGN: This retrospective study evaluated 1256 mandibular sagittal-split osteotomies in two groups of patients: Group I had impacted third molar teeth removed during sagittal-split osteotomy; in Group II, the third molar teeth had been removed at least 6 months before the sagittal-split osteotomy. Statistical testing consisted of chi-square analysis of contingency table for p < 0.05. RESULTS: In 1256 mandibular sagittal-split osteotomies there were 24 (1.9%) with unfavorable fractures. Five of 24 occurred when third molar teeth were removed at the time of osteotomy and 19 of 24 mandibular fractures occurred when no impacted third molar tooth was present at the time of osteotomy. However, no significant difference was demonstrated between the groups. CONCLUSION: The result of this study suggests that mandibular fractures may occur with greater frequency when the impacted third molar teeth have been removed at least 6 months before sagittal-split osteotomy as compared with that when third molar teeth are removed concomitant with sagittal-split osteotomy.

Adolescent↗
PubMed1997

Ludwig's angina.

Explore the source record for details and available documents.

Humans↗
PubMed1997

Ring avulsion injuries and the basketball player.

As basketball increases in worldwide popularity, more epidemiological data on injury rate and type will be documented. A serious ring avulsion injury (Urbaniuk Class I) is here reported in an adolescent incurred while attempting a slam dunk. The management of this injury is discussed as well as safety concerns for coaches and supervisory staff.

Adolescent↗
PubMed1995

Maxillary nerve block: a case report and review of the intraoral technique.

Maxillary nerve blockade is not commonly used by general practitioners due to a lack of experience with the techniques involved and the fear of iatrogenic damage. Nevertheless, it represents an excellent method of producing profound anesthesia in the maxilla, with definite indications in selected instances. The anatomy and techniques associated with the maxillary block, as well as the indications, contraindications and complications are reviewed, and the use of the greater palatine foramen approach to treat a patient with a facial abscess is described.

Anesthesia, Dental↗
PubMed1995

Tori mandibularis: a case report and review of the literature.

Many dentists have patients in their practice with mandibular exostoses, termed torus mandibularis. The majority of these asymptomatic, benign bony outgrowths remain undisturbed over the patient's lifetime. However, the tori occasionally need to be removed. The differential diagnosis for the tori are discussed as well as the indications and techniques for their removal. Various hypotheses concerning the etiology and epidemiology of torus mandibularis are also reviewed.

Adult↗
PubMed1995

Odontogenic infections: Part one. Anatomy and radiology.

Odontogenic infections are frequently encountered by the dentist. The signs and symptoms of these common dental emergencies are outlined in this two-part article. A thorough knowledge of the fascial planes and anatomical routes of infection spread is a critical prerequisite to understanding the clinical manifestations, potential complications, and appropriate management of these infections.

Adult↗
PubMed1995

Odontogenic infections: Part two. Microbiology, antibiotics and management.

This article deals with the microbiological aspects of infections, the principles and role of antibiotic use and the general management of the patient suffering from an odontogenic infection. Clinical aspects of the most common presentations will be addressed to understand the organized management of these challenging patients. (Part one appeared in Oral Health, May, 1995).

Anti-Bacterial Agents↗
PubMed1993

Third molar surgery: current concepts and controversies. Part 1.

The removal of impacted third molar teeth ranks as the commonest procedure in the practise of oral and maxillofacial surgery. It is the purpose of this review article to present the major controversies and correct some of the misconceptions associated with third molar surgery. This paper deals primarily with the discussion of the indications for the removal while part II describes the influence of a variety of factors upon the outcome of third molar surgery.

Adolescent↗
PubMed1993

Third molar surgery: current concepts and controversies. Part 2.

The outcome of third molar surgery is influenced by a variety of factors including among others, mucoperiosteal flap design and flap closure and the use of antibiotics and corticosteroids. This article discusses the special significance of modifying factors upon the incidence of perioperative complications associated with third molar surgery.

Adrenal Cortex Hormones↗
PubMed1992

Parasymphyseal fracture with an associated temporomandibular joint dislocation: case report.

A case of traumatic mandibular fracture with associated unilateral anterior dislocation of the temporomandibular joint in a child is described. Although anterior dislocation is common, this combination of fracture and separate dislocation to our knowledge has not been reported in a young child. The unusual management required in this case is discussed.

Accidents, Traffic↗