Flasking technique with alum crystals for fabricating definitive hollow bulb obturators

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Different techniques have been described for fabricating obturators for patients with maxillary defects. The hollow bulb obturator has emerged as the treatment of choice in most patients owing to its light weight, cleanliness, and ease of fabrication. This article presents a simplified flasking technique for fabricating a definitive, closed, hollow bulb obturator by using a potassium alum crystal.

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