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Radiograph showing the metal ring in pelvic region.
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The patient was x-rayed (standing abdomen antero-posterior view) the next day, almost 13 hours after the incident (Figure 1).
Radiograph of abdomen: no metallic objects visible.
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About 37 hours after the incident we repeated the radiograph (Figure 2) and saw no radio-opaque body.
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The Palodent forceps, matrix bands and the round ring kit.
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As the forceps are supplied with the matrix bands-rings-forceps kit (Figure 3), naturally they will be used instead of any other rigid forceps.
Evaluation of the flexibility of Palodent forceps: arrows denote the direction of flexure; vertical lines denote how the instrument should be without bending.
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Both its tines and handles bend towards the long axis of the instrument when applying ring separation force to the forceps (Figure 4).
Comparing the beaks of a prototype rigid ring placement forceps with Palodent forceps.
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Comparing the forceps with any rigid forceps, the difference is very apparent (Figure 5).
Engaging the ring with a prototype rigid forceps: notice no flexibility of the beaks.
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There is no bending or flexion of any rigid forceps (Figure 6). Other specially designed forceps (Figure 6) for ring separation may be very rigid and limited in their applications.