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Biomedical subjects

J G McGimpsey

Publications and source records attributed to J G McGimpsey.

15 recordsLinked to original sources

Role of thermography in the assessment of infraorbital nerve injury after malar fractures.

We studied 45 patients with malar fractures who had some degree of infraorbital nerve deficit. Thermographic facial images failed to show any substantial changes in the temperature profiles of the affected and the normal control sides in relation to reco very of their facial sensation. Although some patients who had thermography on the day of injury showed significant temperature differences between the affected and the normal sides, these differences were probably the result of the acute inflammatory ch anges caused by the injury. We suggest that infrared thermography has little place in the assessment of infraorbital nerve deficits.

Adolescent↗

Electronic infrared thermography as a dental research technique.

Electronic infrared thermography is an imaging modality for the accurate quantification of surface temperature. It has been used in medicine since the 1960s but its use in dentistry has been limited. Its use in dentistry could, however, be very useful, for example in objectively quantifying post-surgical inflammation and studying the effects of treatment with agents such as analgesics and anti-inflammatory drugs.

Adult↗

Infrared thermography. Its role in dental research with particular reference to craniomandibular disorders.

The use of infrared thermography in dentistry has been minimal, principally due to technological inadequacies of previous thermal imaging systems. However, with the ever-developing advancement in technology, current systems are capable of producing real-time, highly sensitive digitized thermal images. This development has led to an increased use of infrared imaging within both medical and dental research. The present paper describes these techniques and their previous applications within dentistry, and, through the use of a pilot study, highlights possible future applications in the assessment of craniomandibular disorders.

Adult↗

Dental anxiety and the absorption of orally administered erythromycin stearate.

Erythromycin stearate is an acid labile antibiotic, therefore fear and apprehension, which are known to affect gastric motility, may produce erratic absorption resulting in lower serum levels. The mean (SD) serum erythromycin concentration 75 minutes after a 1.5 gm oral dose of erythromycin stearate to 45 patients was 8.7 (4.8) mg/L and ranged widely from 0.4 to 20.5 mg/L. The serum concentration of erythromycin was below therapeutic levels (1.0 mg/L) in two patients. No significant association was found between anxiety and serum levels of erythromycin when age, gender, and gastric distress were taken into account. It is concluded that dental anxiety may indirectly influence the uptake of oral erythromycin stearate; but this relationship is complex, and there is no evidence from this study that increased dental anxiety decreases the uptake of the drug.

Adult↗

Dental care of patients susceptible to infective endocarditis.

McGowan and Tuohy carried out a survey in Belfast in 1968 to identify patients with cardiac lesions susceptible to infective endocarditis. They also asked whether adequate precautions had been taken by the patients' medical and dental advisers in respect of antibiotic cover for dental surgical procedures. This survey has now been repeated in the Belfast and Glasgow Dental Schools. When compared with those of 1968, the results of these recent studies show that while more 'at risk' patients are receiving antibiotic cover for dental surgical procedures there is still room for improvement in the advice given to patients by medical and dental practitioners.

Anti-Bacterial Agents↗

Sublingual adult rhabdomyoma. Report of a case.

A case of intraoral adult extracardiac rhabdomyoma is reported. There has been no recurrence in 4 years follow-up. We estimate this to be the 111th reported case of extracardiac rhabdomyoma, the 29th to present in the tongue and sublingual regions.

Cell Nucleus↗

Surgical and orthodontic management of compound odontoma.

Practitioners should always consider the possibility of an odontoma when the eruption of teeth is delayed. The authors report an example of compound odontoma associated with delayed eruption of incisor teeth, and describe the surgical and orthodontic management of the case.

Child↗

Comparison of serum erythromycin concentration following administration of 100 mg erythromycin ethyl succinate intramuscularly and 500 mg erythromycin stearate orally.

Serum erythromycin concentrations were estimated following administration of 100 mg erythromycin ethyl succinate intramuscularly and 500 mg erythromycin stearate orally. The subjects (30 healthy students) were randomly divided into two groups and each subject received a single dose of the alternate form of the drug after a 4-week interval. Blood samples were obtained at 0.5, 1, 1.5, 2, 3 and 4 h after administration by separate venepuncture. All 30 subjects recorded serum levels above 0.2 microgram/ml following administration of the intramuscular form of the drug. Following administration of the oral form of the drug, five subjects failed to record serum levels above 0.2 microgram/ml by the 2-h sampling time and three failed to do so by the 4th hour. It is concluded from the results that, despite the high serum levels recorded with the oral form when taken with food, the intramuscular route gives a greater assurance of consistent absorption into the blood stream. This result suggests that the use of the oral form of the drug as a prophylactic antibiotic in patients receiving dental treatment remains in doubt.

Administration, Oral↗