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Lab talk, the good, the bad, and the ugly
Dental-CAD
Medit/exocad Pains
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<blockquote data-quote="CoolHandLuke" data-source="post: 342486" data-attributes="member: 4850"><p>hi Riley, just seeing this now but i think it would help everyone if i can explain this publically.</p><p></p><p>you want your margin to have that thin gap of .01-.02 at the margin, the reason you want it is because the dentists who cement the crowns need to make the cement/giomer flow all the way down and seal the margin.</p><p></p><p>with no gap, you force the cement to be stuck inside the crown gap trapped by air. the margin can then absorb food and water and cause further decay. the pt could lose the tooth. that slight gap is thick enough to let the resin flow until the resin seals under the margin and solidifies.</p><p></p><p>hope this helps.</p></blockquote><p></p>
[QUOTE="CoolHandLuke, post: 342486, member: 4850"] hi Riley, just seeing this now but i think it would help everyone if i can explain this publically. you want your margin to have that thin gap of .01-.02 at the margin, the reason you want it is because the dentists who cement the crowns need to make the cement/giomer flow all the way down and seal the margin. with no gap, you force the cement to be stuck inside the crown gap trapped by air. the margin can then absorb food and water and cause further decay. the pt could lose the tooth. that slight gap is thick enough to let the resin flow until the resin seals under the margin and solidifies. hope this helps. [/QUOTE]
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Lab talk, the good, the bad, and the ugly
Dental-CAD
Medit/exocad Pains
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