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Biomedical subjects

N J Serman

Publications and source records attributed to N J Serman.

11 recordsLinked to original sources
PubMed1992

The radiographic incidence of multiple roots and canals in human mandibular premolars.

The aim of this study was to investigate the incidence in mandibular premolars of multiple roots and root canals that could be demonstrated radiographically. The images of mandibular premolar teeth as seen on intraoral full-mouth radiographic surveys (547) taken with the paralleling technique were examined. In 99 patients (18.1%) there was at least one premolar tooth with either divided canals or roots. First premolars were involved in 15.7% of patients, and second premolars in 7%.

Bicuspid↗
PubMed1992

Ehlers-Danlos syndrome: a case report.

A 13-year-old male patient classified as Type VIII, Ehlers-Danlos syndrome, in which the typical periodontal findings are not seen, is presented. The patient has many partially erupted deciduous teeth and partially erupted mandibular permanent incisors. It is suggested that Type VIII has two subdivisions. In subdivision A there is periodontal involvement with a normal eruption pattern; subdivision B has no periodontal involvement, but the teeth do not erupt.

Adolescent↗
PubMed1992

Localization of impacted teeth utilizing inherent panoramic distortions.

Distortions in the size of images seen on panoramic radiographs can assist the clinician in determining the site of impacted teeth in relation to the dental arch. Application of this principle can often eliminate the necessity for additional radiographic views and prevent exposure of the patient to unnecessary radiation.

Cuspid↗
PubMed1990

Decreasing the density of dark radiographs--a lost art.

The purpose of this paper is to describe a procedure that appears to have been lost with time and that reduces excess density [immaterial of the cause] on radiographs. This results in radiographs of greatly improved diagnostic quality. This procedure results in avoiding retakes resulting in a lower radiation dose to the patient and a saving of time. This procedure should not be considered as a substitute for poor radiological or processing techniques.

Ferricyanides↗
PubMed1989

A novel processing artefact.

A processing artefact is described that is similar in appearance to the tractor-tread (or herringbone) pattern seen on an intra-oral dental radiograph that has been exposed the wrong way round in the mouth.

Diagnostic Errors↗
PubMed1989

The mandibular incisive foramen.

An anatomical variant in the region of the mental foramen is discussed. In these cases the inferior alveolar nerve divides into its two terminal branches only after it has exited through the mental foramen. The incisive nerve thus commences outside the mandible, and has a short extra-osseous course before it enters the mandible through a separate foramen on the same horizontal plane. For the distance between these two foramina there is no nerve supply within the mandible. The groove between the two foramina may be the remnants of the mandibular canal. The foramen through which the nerve enters the bone is a separate anatomical entity from the mental foramen and should be recognised as such. It is proposed that this foramen be named the mandibular incisive foramen.

Humans↗