Chapter 35 Lab materials & techniques
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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Articulator | Replicate the movement of the jaw/joints. Used with models to study malocclusion
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Spacer and stopper | Thin liner/divider between maxillary and mandibular arches for custom fit. Can be wax, foil or wax paper
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Undercut | Recessed areas in the model that make it impossible to seat or remove custom tray properly; caused by bubbles in plaster, cavities or shape of arch or dentition
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Final Impression | Silicone impression that is sent to the lab
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Custom tray | Molded and fit specific for one person
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Die | Positive replica of the prepared tooth made from stone/plaster
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Triple tray |
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Dimensional stability | Durability and strength
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Preliminary impression | Done by assistant, poor dimensional quality and stability
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Alginate impressions | Make a negative mold
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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