RDAEF2 WRITTEN TEST QUESTIONS & ANSWERS 100% SOLVED

RDAEF2 WRITTEN TEST QUESTIONS & ANSWERS 100% SOLVED Labial commissure - answercorner of mouth where upper and lower lips meet mental protuberance - answerchin Root of nose - answerBridge of nose Philthrum - answerSmall rectangle between lip and nose Lip area - answerAka vermillion zone; bulk of lips Canthus - answerAngle/corners of eye Alla - answerOuter wing of nose Glabella - answerUnibrow; space between eyes naris - answernose hole; nares- plural Septum - answerCartilage between nares Zygomatic arch - answerCheek bone; masseter originates here Angle of mandible - answerJawbone Temporal region of head - answerSides; Temporalis muscle Incisive papilla - answerTissue, lingual, between 8/9 Hard pallate - answerFront 2/3 of palate. Nasal surf= respiratory mucosa; oral= oral mucosa soft palate (velum) - answerMovable, vibrating line, aids in speech and swallowing Tongue - answerBody= anterior 2/3 Fungiform papilla - answerHave tastebuds, central portion back of tongue Ankyloglossia - answerTongue tied Tonsils - answerLocated on tonsillar pillars. R/L of throat; part of lymphatic system. parotid salivary gland - answerLargest, located in front just below ears. Stenson's duct. submandibular salivary gland - answerUnder chin; Wharton's duct sublingual salivary gland - answerUnder tongue Primary dentition - answerDeciduous, 20 teeth, no premolars Tooth surfaces - answerOcclusal, Incisal, lingual, buccal/facial, medial, distal Mixed dentition - answerAge 6-12. Begins with eruption of first permanent tooth; ends with shedding of last primary Permanent dentition - answerFinal/ adult; begins with shedding of last primary. Class 1 occlusion - answerNeutroclusion, centric occlusion, Class 2 occlusion - answerDistoclusion- 2 divisions: 1: significant overjet; mb cusp of max 1st molar is ant. Of the mand 1st molar bucc groove. 2: anterior retrude (lingual tip); mb cusp of max 1st molar is ant of mand 1st molar bucc groove Class 3 occlusion - answerMesioclusion "underbite"; mb cusp of max 1st molar is post to mand 1st molar bucc groove Open bite - answerTeeth do not occlude; thumb suckers Crossbite - answerMandibular buccal cusps sit outside of maxillary buccal cusps Lingoversion - answerTip lingual Facioversion - answerTip buccal/facial Supraversion - answerSuper errupted Torsoverted - answerRotated Ectopic erruption - answerTooth does not follow normal eruption path Stress - answerForce; chewing, bruxing, clenching; 90-200lbs psi Compression strain - answerie: crushing can; outward forces compress inward Tensile strain - answerie: tug of war; outside forces pull in opposite directions Shearing Strain - answerie: scissors; outside forces are applied in opposite directions (anterior teeth) Electrical conductivity - answerSymptom of concentration cell corrosion ie: chewing on foil; dissimilar metals + electrolyte(saliva)= electrical conductivity =corrosion; corrosion - answerGalvanic reaction, damage to restoration (amalgam) tarnish - answerie: darkened amalgam; oxidation, non-destructive; high acidity/sulfide diet Thermal conductivity - answerAbility to conduct temperature. Bases placed to hinder conductivity with alloys. Enamel and composite are very close Thermal expansion - answerHot-expand cold-contract; creates micro leakage = recurrent decay Concentrated cell corrosion - answerSmall pits/fissures created during placement, enlarge over time. Polishing amalgams helps prevent this. Alloy components - answerSilver, tin, Mercury, copper Types of amalgam - answerAdmix (used today) mix of irregular and spherical. Mercury - answerEasily forms with other metals; highly toxic Amalgam mixes - answerOver triturated: sticky, poor strength, resists condensing, very shiny Under triturated: dull, crumbly, voids, poor condensing Amalgam mixing - answerTrituration: speed/time/force Will need to adjust time depending on manufacturing instructions. Gamma 2 phase - answerHigh copper alloys have no G2, much stronger bond Alloy polishing - answer24 hours after placement. Enamel structure - answerKeyhole shape Lamella - answerCracks in enamel What happens when enamel is etched - answerIt becomes Demineralized in order for better adhesion after bonding; enamel core is dissolved more than enamel rods Smear layer - answerHydroxyapatite; debris ie: sawdust Cannot bond, need to etch rinse to clean surface Dentin collagen fibers - answerDenaturing causes collapse = poor bond, increased sensitivity, bond failure Composite - answerResin based matrix and inorganic filler. Silane coupling agent used to strengthen bond. Composite components - answerFiller: strength, wear resistance, reduces shrinking