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Lab talk, the good, the bad, and the ugly
Metal
Rocking, Rocking, ROCKING!
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<blockquote data-quote="Al." data-source="post: 21724" data-attributes="member: 382"><p>The pontics come in sections of 4.</p><p>I seperate the one I want but make it so there is only a small space between the abuttments. </p><p>I set it on the ridge. Sometimes there is space some times I heat the underside and mash it on the ridge, it depends on the space.</p><p></p><p>I connect one side only and let that cool and shrink (2 or 3 minutes)usually that will lift the pontic off the ridge slightly.</p><p>Then I connect the other side and finish my wax up, on anteriors I usually add wax underneith like on the bridge above. Later I grind back the metal and releive the stone slightly so the pontic fits snug to the tissue.</p><p></p><p>I always cut the bridge with a warm razor to releive stress. Then I remove the pontic area (stone section) and then I trim back the dipped wax and seal the margins.</p><p></p><p>Then I seat the dies and wax only, back on the model everything else goes in the pan.</p><p>I tack the connection first on the gingival areaUsually the lingual side first. I use only a small drop and my tip is set at 400 so it is hot enouugh for the wax to suck through or into the cut not sit on top. I dont touch the wax up with my tip just let the drop of wax touch it.</p><p></p><p>I usually give it 3 to 5 minutes and tack the other side at the facial gingival.</p><p>Then the occlusal lingual then the facial occlusal.</p><p></p><p>A bridge like the one posted above your looking at 30 minutes of waxing time to get it ready for sprues.</p><p></p><p>For most straight simple bridges up to 6 units rocking should be the exception.</p><p></p><p>Once you start waxing around the curve of the mouth or have multiple abuttments or over 6 units it seems like a 50 50 chance to solder (for me).</p></blockquote><p></p>
[QUOTE="Al., post: 21724, member: 382"] The pontics come in sections of 4. I seperate the one I want but make it so there is only a small space between the abuttments. I set it on the ridge. Sometimes there is space some times I heat the underside and mash it on the ridge, it depends on the space. I connect one side only and let that cool and shrink (2 or 3 minutes)usually that will lift the pontic off the ridge slightly. Then I connect the other side and finish my wax up, on anteriors I usually add wax underneith like on the bridge above. Later I grind back the metal and releive the stone slightly so the pontic fits snug to the tissue. I always cut the bridge with a warm razor to releive stress. Then I remove the pontic area (stone section) and then I trim back the dipped wax and seal the margins. Then I seat the dies and wax only, back on the model everything else goes in the pan. I tack the connection first on the gingival areaUsually the lingual side first. I use only a small drop and my tip is set at 400 so it is hot enouugh for the wax to suck through or into the cut not sit on top. I dont touch the wax up with my tip just let the drop of wax touch it. I usually give it 3 to 5 minutes and tack the other side at the facial gingival. Then the occlusal lingual then the facial occlusal. A bridge like the one posted above your looking at 30 minutes of waxing time to get it ready for sprues. For most straight simple bridges up to 6 units rocking should be the exception. Once you start waxing around the curve of the mouth or have multiple abuttments or over 6 units it seems like a 50 50 chance to solder (for me). [/QUOTE]
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Lab talk, the good, the bad, and the ugly
Metal
Rocking, Rocking, ROCKING!
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