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Mounting the mandibular cast
A demonstration of two different techniques to get the same result Dr. Howard Strassler
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Mounting casts using CaStix
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Soak the cast in water to prepare it for mounting
Soaking also makes it easier to score and notch the cast
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Preparing the cast for mounting
Hold Buffalo knife with palm and thumb grasp Score the cast using the Buffalo knife Long indentations paralleling the alignment of the posterior teeth
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Preparing the cast for mounting
Arrows point to notched areas Long indentations paralleling the alignment of the posterior teeth Notches in the anterior and posterior areas Red ovals indicate indentations (scorings)
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Screw the mounting ring tight to the mandibular member of the articulator
Be certain there is no stone between the mounting ring (mounting plate) that would interfere with full seating Note orientation of mounting ring
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CaStix- a standardized device For accurately articulating casts
Cyanoacrylate adhesive with accelerator
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Technique for placement of CaStix
Maxillary cast related to articulator with facebow transfer Articulation of maxillary and mandibular casts
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CaStix tried on for positioning and to note placement of adhesive- minimal of three sites
Adhesive applied CaStix positioned Add mounting stone and close articulator with weight on top
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Accelerator applied 3 to 4 CaStix placed for stabilization
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Stabilized casts placed on articulator
Screw maxillary cast with mounting ring tight to articulator Make certain it is fully seated Turn articulator upside down Wet mandibular cast with wet paper towel Wet paper towel
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Place maxillary cast on articulator being certain it is fully seated
3-5 lb Place maxillary cast on articulator being certain it is fully seated Add mounting stone and close articulator with weight on top
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After mounting stone has set CaStix set are removed by torquing sticks side to side separating them from base Plastic pieces can be removed with Buffalo knife or left on cast
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After mounting stone has set add additional stone to create a smooth, neat mounting
This mounting will be used for diagnosis, treatment planning and patient presentation.
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