Term
| Where do we grind in stage 1 of occlusal equilibration? |
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Definition
| Centric holding area. NOT in fossa |
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Term
| Where do we grind in stage 2 of occlusal equilibration? |
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Definition
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Term
| What is the order of eliminating interferences during occlusal equilibration? |
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Definition
1 Non working
2 Cross Tooth
3 Working
4 Protrusive |
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Term
| Where are the three areas that may provide incisal guidance? |
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Definition
Mandibular incisors
Canines
Mesial Inclines of First Mandibular Premolars |
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Term
| How much space between an impression tray and the teeth? |
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Definition
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Term
| How many scoops of alginate for max and mand impressions? |
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Definition
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Term
| What is the working time of type 2 regular set alginate? |
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Definition
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Term
| How do hot and cold water affect setting times generally? |
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Definition
Cold = retarder
Hot = speed up |
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Term
| What is the definition of working time? |
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Definition
| From start of mixing to beginning of setting of material |
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Term
| Technically how long should PVS Adhesive dry on custom tray? |
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Definition
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Term
| Impression stone to water ratio? |
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Definition
100mL to 300 g powder
(in preclinic it is 1 cup stone with 46 mL water) |
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Term
| How long do we vibrate bowl of stone? |
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Definition
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Term
| What height of stone above the gingival margins for casts without a base? |
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Definition
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Term
| How long should stone set? |
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Definition
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Term
| Height of casts from base to occlusal table? |
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Definition
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Term
| Height of cast/base at thinnest part? |
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Definition
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Term
| How much "land" on sides of stone casts? |
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Definition
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Term
| What kind of articulator do we have? |
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Definition
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Term
| Should bite fork arm be on left or right of patient? |
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Definition
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Term
| How high above the incisal edge of the central/lateral incisors is the anterior reference point (infraorbital notch) during the facebow transfer? |
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Definition
| 43mm above right central or lateral incisor. |
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Term
| What are the measurements for Bennett angle and Condylar Inclination on our articulators? |
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Definition
Bennett Angle = 15 degrees
Condylar Inclination = 30 degrees |
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Term
| For the Putty Shell, how far past gingival margins should it extend? |
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Definition
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Term
| Setting time for Putty Shell Aquasil? |
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Definition
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Term
| PFM functional cusp reduction? |
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Definition
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Term
| PFM non functional cusp reduction? |
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Definition
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Term
| PFM buccal shoulder width? |
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Definition
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Term
| PFM interproximal shoulder width? |
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Definition
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Term
| PFM Lingual shoulder width? |
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Definition
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Term
| PFM supragingival height of shoulder? |
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Definition
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Term
| How much taper on PFM axial walls? |
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Definition
| Ideally 6 degrees but can go to 12 degrees |
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Term
| Width of functional cusp bevel on PFM and full metal? |
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Definition
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Term
| Width of non functional cusp bevel on PFM and full metal? |
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Definition
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Term
| Full metal functional cusp reduction? |
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Definition
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Term
| Full metal non functional cusp reduction? |
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Definition
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Term
| Full metal shoulder width? |
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Definition
| 0.75-1 mm circumferentially AFTER bevel |
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Term
| Width of bevel on full metal shoulder? |
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Definition
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Term
| Height of shoulder on full metal prep? |
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Definition
| 1.5 mm supragingival but bevel puts it 0.5 mm supragingival |
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Term
| Bevel angle on full metal prep? |
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Definition
| 45 degrees made with flame bur |
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Term
| What do we soak the waxed up diagnostic cast in, before taking alginate impressions? |
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Definition
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Term
| Should you re-line the provisional if it is in hyperocclusion? |
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Definition
| NO this will compound your problem. Adjust occlusion THEN reline |
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Term
| What happens when we place an acrylic provisional in warm water to set? |
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Definition
| It speeds up setting, but causes shrinkage |
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Term
| When making a provisional should you put vaseline on omnivac shell? |
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Definition
| No, it will cause porosities |
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Term
| How long should acrylic provisionals stay on patient's teeth when you are making it initially? |
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Definition
| 2 minutes...it gets hot after this! |
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Term
| What does it mean if your provisional snaps into place? |
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Definition
| undercut is present...fix your prep |
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Term
| What does it mean if margins break off on your provisional? |
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Definition
| not enough tooth structure was removed or your bevel is not angled properly |
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Term
| What are the dimensions and location of a pontic's contact area with the gingiva? |
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Definition
| 2mm by 2mm contact area that is 1 mm buccal to crest of ridge |
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Term
| What are the dimensions of the connectors of a 3 unit provisional on teeth 19-21? |
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Definition
4x4mm for molar
3x3 mm for premolar |
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Term
| How thick should your elastomeric impression materials be in the tray? |
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Definition
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Term
| What will large bulks of impression material lead to? |
|
Definition
| increased polymerization shrinkage |
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Term
| How far apical to the gingival margins should your baseplate wax extend when making custom trays? |
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Definition
| 2 mm apical from the gingival margin |
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Term
| What are the dimensions of molar and incisor tissue stops on a custom tray? |
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Definition
2x2 mm molars
2x1 mm incisors |
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Term
| Where do we put model releasing agent when making custom trays? |
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Definition
NOT on the model
ON the pink baseplate wax before putting on tray material |
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Term
| Size and angle of custom tray handle? |
|
Definition
| 3/4" by 3/4" and 70 degrees for mandibular |
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Term
| Curing times for custom trays? |
|
Definition
2 minutes on cast
1 minute off of cast
paint with ABC
4 minutes tissue side up |
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Term
| How long should the PVS set during final impression? |
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Definition
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|
Term
| How long should de-bubblizer stay on impression before pouring a model? |
|
Definition
| 60 seconds. do not rinse off |
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Term
| Ratio of DieKeen powder to water for pindex cast? |
|
Definition
| 60 g powder : 13 mL water. In preclinic this is 2 packages and 26 mL of water |
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Term
| Clinically what is ratio of Type IV ivory stone to water when making the pindex BASE? |
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Definition
| 200 g powder to 42 mL water in vacuum mixer. |
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Term
| How long do we mix stone in vacuum mixer? |
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Definition
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Term
| What PSI should we use in vacuum mixer? |
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Definition
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Term
| For the preclinic pindex model, how far distal to the third molars should the model extend? |
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Definition
| 2mm so that it fits in rubber base mold |
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Term
| When trimming the pindex cast, how should it converge/diverge? |
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Definition
| it should diverge toward occlusal so that it can come out of the base |
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Term
| What is the minimum distance Bucco-Lingually between pindex holes? |
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Definition
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|
Term
| What is the minimum distance Mesio-Distally between pindex holes? |
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Definition
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|
Term
| Why must the pindex holes line up bucco-lingually? |
|
Definition
| to ensure a common path of draw |
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|
Term
| How long should cyanoacrylate glue dry on pindex? |
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Definition
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|
Term
| Should the pindex pin be visible above the pink sleeve? |
|
Definition
| yes, if it isn't the sleeve is upside down |
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Term
| What is the purpose of separator being applied to bindex cast? |
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Definition
| helps separate it from the white base |
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Term
| How high should the base cover the pindex cast? |
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Definition
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|
Term
| How long should base of pindex model harden? |
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Definition
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Term
| Should you use a buffalo knife to separate the pindex cast from the base? |
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Definition
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|
Term
| How much land should surround the trimmed base of a pindex model? |
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Definition
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Term
| When cutting your die off of the pindex should your cuts converge or diverge toward occlusal? |
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Definition
| diverge toward occlusal or be perfectly straight so that they can come out. She says "cuts should converge" but that is toward the apical direction |
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Term
| How should you hold the bur when ditching your pindex die? |
|
Definition
| along axis of die NOT perpendicular to it |
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|
Term
| What is the working time of Regisil for occlusal bite record? |
|
Definition
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|
Term
| When should you remove regisil from patients mouth? |
|
Definition
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|
Term
| What happens if you don't trim your regisil accurately? |
|
Definition
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