Further comment on bracket positioning.
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Humans↗
Biomedical subjects
N G Taylor
Publications and source records attributed to N G Taylor.
The reliability of positioning pre-adjusted brackets: an in vitro study.
To investigate the reliability of bracket positioning, twelve operators, familiar with the straight-wire appliance, placed 0.022" straight-wire brackets on the anterior teeth of a typodont study model, on three different occasions. Bracket position was assessed using a Magiscan image analyser. Angular judgements by the operators were found to be less consistently identified than linear assessments. Slot angulation showed the largest variability and vertical bracket placement the least. The clinical implications of bracket misplacement are discussed.
Cuspid↗
Resorption of the crown of an unerupted permanent molar.
This case report describes an unusual phenomenon where resorption occurred in the crown of an unerupted permanent molar. It was an incidental radiological finding. After eruption the tooth was extracted. Histological examination revealed resorption of enamel and dentine, and partial replacement by calcific material. The possible aetiology of the condition is discussed.
Child↗