ADEX OSCE Exam Review

ADEX OSCE Exam Review thickness of minor RPD connectors - ANS-1.5 mm Minimum space between vertical components of RPD - ANS-5 mm Kennedy Class I - ANS-bilateral distal extension Kennedy Class II - ANS-unilateral distal extension Kennedy Class III - ANS-entirely tooth born with teeth anterior and posterior Kennedy Class IV - ANS-edentulous area anterior to remaining teeth Lingual bar distance from gingival margin - ANS-3 mm Lingual bar width (minimum) - ANS-4 mm Maxillary major connectors, how far from gingival margin - ANS-6 mm Max RPD bead line width and depth - ANS-.75-1 mm Anterior-posterior palatal strap, minimum distance between straps and minimum width for each strap - ANS-15 mm between, 6 mm anterior and 8 mm posterior Palatal plate advised when? - ANS-The last abutment on either side is a canine or premolar Main function of indirect retainers - ANS-prevents vertical dislodgement of the distal extension base away from tissues (sticky food) Minimum number of rests for RPD - ANS-3 For a distal extension where is the rest on the most posterior tooth - ANS-mesial rest seat depth - ANS-1.5 mm at marginal ridge and 2 mm in center, at least 2.5 mm wide what is prepared first? Guide planes or seats - ANS-guide planes extended occlusal rests used when? - ANS-used when most posterior molar abutment is mesially tipped in class II (mod I) and class III Cingulum rest depths - ANS-2 mm wide (F-L), 2.5-3 mm (M-D), 1.5 mm deep Guide plane position relative to height of contour for classes of RPD - ANS-Class III and IV can end above the height of contour because there is no functional movement. Class I and II must be below the height of contour (to prevent torquing). With I-bars and mesial rests on premolars, must end exactly at the height of contour. how to determine number of clasps - ANS-kennedy classification + 1 (except for class IV) Undercut of 0.01 - ANS-cast clasp Undercut of 0.02 - ANS-wrought wire (0.5 mm and must be at least 8 mm long, 18 gauge) chromium provides what - ANS-corrosion resistance cobalt provides what - ANS-rigidity Nickel provides what - ANS-ductility What muscle dictates the DB of the mand flange of a denture - ANS-masseter What muscle dictates the DL of the mand flange of a denture - ANS-superior constrictor muscle how far to trim back the custom tray from the mucosal reflection - ANS-2 mm occlusion rim heights - ANS-maxillary 22 mm, mandibular 18 mm The inferior surface of the maxillary occlusal rim should be parallel to... - ANS-Camper's Line (Ala-tragus Line) and inter-pupillary line primary and secondary support for mand denture - ANS-primary - buccal shelf, secondary - alveolar ridge Posterior palatal seal - ANS-extends through the hamular notches, 2 mm in front of fovea palatinae, carried 5 mm anterior to the vibrating line if denture falls down when smiling - ANS-buccal notch and buccal flange are excessively thick Golden Proportion Ratio - ANS-1.6:1:0.6 (central:lateral:canine) S sounds like "th" - ANS-either max anteriors are too far palatal or palate is too thick. S sounds bring the max and mand closest together (than other sounds) Occlusal clearance gold - ANS-1.5 mm functional, 1 mm non-functional Occlusal clearance PFM - ANS-1.5-2 mm functional, 1-1.5 non-functional all ceramic clearance - ANS-2 mm Percentages for PFM copings - ANS-high noble (98% gold, platinum and palladium - these metals do not oxidize on casting), Noble (50-60% palladium, 30-40% silver - silver will oxidize), Base (70-80% nickle, 15% chromium - these both oxidize on casting) Coping thickness - ANS-noble metal is 0.3-0.5, base as thin as 0.2 Implant overdenture minimum space - ANS-locator - 8.5 mm, ball and o-ring - 10-12 mm, bar clip - 13-14 mm Polysulfide impression material - ANS-rubber base, setting time of 12-14 min PVS - ANS-poured up to 1 week, hydrophobic, do not wear latex gloves, 6-8 min setting time, temperature sensitive (sets faster in heat) polyether - ANS-impregnum, hydrophillic4-6 min setting time, most stiff, gypsum made of? types? - ANS-calcium sulfate hemihydrate; type I - rarely used, plaster of paris, type II - ortho casts, not very strong, type III - dentures, type IV - use for stone dies, type V - stone dies, most popular today PDL types of elastin - ANS-No mature elastin, 2 types of immature: oxytalan (regulates vascular flow, parallel to root surface) and eluanin attached gingiva - narrowest bands - ANS-buccal mand canines and 1st premolars, lingual mand incisors and canines Junctional epithelium - ANS-2 basal laminas (internal faces the tooth) and external (faces the connective tissue) Proliferative cell layer - responsible for most cell divisions and located next to external basal lamina long junctional epithelium - ANS-refers to junctional epithelium in disease, as JE gets longer and moves apically the coronal portion detaches ANUG (acute necrotizing ulcerative gingivitis) - ANS-treponema denticola (spirochete), predominately neutrophils involved First cells involved in acute inflammation (start of gingivitis) - ANS-Polymorphonuclear neutrophils (PMNs)...