CDCA NERB Questions and Answers Latest Update 2022 Graded A+

CDCA NERB Questions and Answers Latest Update 2022 Graded A+ Document Content and Description Below CDCA NERB Questions and Answers Latest Update 2022 Graded A **Disadvantage of a resin bonded denture (Maryland Bridge)? Correct Answer-Debonding Advantage of a Maryland Bridge? Correct Answer-Less tooth reduction Gutta percha is made out of? Correct Answer-Zinc oxide Drug that increase the concentration of lidocaine in the blood? Correct Answer-propanalol Best initial treatment for Maxillary oroantro fistula? Correct Answer-abx and irrigation Minimum occlusal reduction for PFM? Correct Answer-1.5mm X-rays show many well demarcated PA lucencies Next step? Correct Answer-Pulp test them Purpose of SRP? Correct Answer-To reduce inflammation and pockets You extracted a tooth, 1 day later pt has a big blood clot. Next step? Correct Answer-Remove clot, apply pressure with gauze , evaluate Drug taken for arthritis? Correct Answer-Naproxene **Advantage of under contoured temps? Correct Answer-Improves health of gingival tissues Porcelain fractures because 3 reasons: Correct Answer--It was a long span resulting in flexing of metal-unsupported porcelain -not enough occlusal reduction Minimum thickness for porcelain? Correct Answer-2mm **Pt has difficulty swallowing with C/C b/c? Correct Answer-there is insufficient interocclusal space You insert C/C. 1 side contacts in CR, the other doesn't b/c? Correct Answer-Dimensional changes during processing **[Picture] Arrow to the reciprocal clasp in above RPD, what's purpose Correct Answer-To counterbalance force of retentive arm/clasp **Blunted roots of anterior teeth are due to? Correct Answer-Excessive orthodontic forces When doing an implant, what's the best choice? Correct Answer-Endosseous Best treatment plant to replace one tooth? Correct Answer-Implant Advantage of implant? Correct Answer-Avoid the need to cut healthy teeth RPD better than FPD for what reason? Correct Answer-More hygienic X-rays cannot determine? Correct Answer-F/L width of the alveolar bone V notch is cut into plaster cast to be able to? Correct Answer-Remove and replace model more accurately What isn't an indication of an MI? Correct Answer-Pounding heart beatIf patient has history of angina, do what? Correct Answer-Have pt take nitroglycerin Ideal occlusal reduction for porcelain on functional cusp? Correct Answer-2mm **Best way to close an oro-antral fistula? Correct Answer-Surgery **When it's hard to match shade of adjacent teeth? Correct Answer-Select shade lower in color saturation and less gray The last 1/3 of the retentive arm of the clasp is located where? Correct Answer-Apical to the height of contour Purpose of the die spacer? Correct Answer-To allow room for the cement If you are pulp testing and apply cold, tooth responds and goes in 3s. Dx? Correct Answer-Reversible pulpitis If you are pulp testing and apply cold, tooth responds and goes immediately. Dx? Correct Answer-Healthy tooth In an emergency, the accepted dose of injectable epi is? Correct Answer-0.2cc of 1:1000 Hydrochlorothiazide is a? Correct Answer-Diuretic **Perio packs should be removed after surgery? Correct Answer-In one week Generally, prognosis for a diabetic patient having a lot of dental treatment is? Correct Answer-PoorCalcium channel blockers may cause? Correct Answer-Cause gingival hyperplasia Ideal undercut for cast clasp retentive arm is? Correct Answer-0.01" Ideal undercut for wrought wire retentive arm is? Correct Answer-0.03" Vertical cleft of bone is? Correct Answer-Dehiscence Best method to clean FPD? Correct Answer-Proxy brush Indexing base of the cast - advantage? Correct Answer-Allows accurate reattachment of the cast in proper articulator mounting Patient with a joint replacement doesn't have to pre-med if it's been how long? Correct Answer-1yr (6mo now?) C/C pt that smokes. Evaluate what? Correct Answer-DMD should look for stomatitis nicotina Bacteria associated with ANUG? Correct Answer-Actinobacccilus Spirochaetes Most difficult 3rd molar impaction? Correct Answer-Distoangular If a nervous pt hyperventilates, do what? Correct Answer-Have them breathe into a paper bag Ideal implant for #10? Correct Answer-Endosseous Wax up for RPD framework is made on? Correct Answer-Refractory investment cast The least # of mandibular implants that could provide retention, stability for over denture is? Correct Answer-2Advantage of A/P strap vs full palatial coverage? Correct Answer-Less interference with taste and speech Horseshoe RPD is contraindicated b/c? Correct Answer-It lacks strength and rigidity Indication for altered cast technique? Correct Answer-When saddles rock under occlusal loading Medical condition aggravated by overweight people? Correct Answer-HTN Porcelain jacket crown margin should have? Correct Answer-A shoulder or butt joint Linear blue structure on ventral surface of the tongue on 70yo patient? Correct Answer-Lingual varicosity **Aspirin- main side effect? Correct Answer-Increased bleeding Phlebitis is? Correct Answer-Inflammation of wall of vein How many mg of nitro do you give to pt with angina? Correct Answer-0.4mg Normal width of keratinized gingiva tissue on the buccal surface of the mandible is? Correct Answer-3- 4mm Surgical flap for perio is done for? Correct Answer-Access for instrumentation **Type of healing for surgical flap? Correct Answer-Long junctional epithelium Most important feature in design of P/ as far as major connector is? Correct Answer-To maintain rigidityCheck sterilizer with? Correct Answer-Biological indicators **When HIV Elisa test is (-), it means? Correct Answer-No exposure to HIV & no antibodies for HIV are present Minimum crown/root ratio for abutment? Correct Answer-1:1 Most important reason for ortho on the pt? Correct Answer-To move or reposition/distalize #11 The canine has a dish brown color it is? Correct Answer-The chroma of the tooth Complication of implant on #7? Correct Answer-Penetration of the nasal cavity In centric occlusion, the DB cusp of #30 occludes? Correct Answer-Central fossa of #3 In centric occlusion, the DB cusps of mandibular molars occludes? Correct Answer-In the central fossa of max molars In centric occlusion, the ML cusps of maxillary molars occludes? Correct Answer-I'm the central fossa of mandibular molars Most important consideration regarding implants in #7 & #10 is? Correct Answer-Spacing between roots Erythematous gingival tissue (red around gingiva) is caused by? Correct Answer-Anaerobes/anaerobic bacteria Purpose of max anterior denture teeth if not seen? Correct Answer-Speech and lip support **Pt says she faints at the sight of the needle. Do what? Correct Answer-Place in trendelenburg positionBefore taking shade, do what? Correct Answer-Polish teeth Give what medication for moderate pain? Correct Answer-Acetaminophen For final impression for C/C use? Correct Answer-Rubber polysulfide Replacing restoration in defective tooth with 3/4 or it being amalgam, tx of choice is? Correct AnswerPFM [radiograph] Looking at x-rays past-ortho, the tooth with the worst crown:root ratio was Correct Answer-#9 **When would you say the patient is having severe perio problems? Correct Answer-When the pockets continue to grow in depth #1 cause of cement failure is? Correct Answer-Improper mixing **The important feature of cement is? Correct Answer-Its resistance to solubility and strength against disintegration **Major concern associated with phlebitis? Correct Answer-Pulmonary emboli Drugs that cause gingival hyperplasia? Correct Answer-Nifedipine (brand: Adalat), dilantin Based on x-rays, what's the pocket depth of a certain tooth? Correct Answer-x-rays cant determine that Patient complains of spacing after SRP; this is due to? Correct Answer-reduction of gingival edema **Patient has a shunt in Lt arm for renal dialysis. What is major consideration? Correct Answer-don't take BP on left armBest time for occlusal adjustment for patient needing RPD? Correct Answer-after dx and tx plan have been completed Purpose of occlusal rest? Correct Answer-resist forces and provide support Polycarbox cement causes? Correct Answer-little Pulpal inflammation GI cement - major advantage? Correct Answer-non irritating to the pulp Type III gold is best suited for? Correct Answer-Full crowns Advantage of all ceramic crowns vs PFM? Correct Answer-Esthetics The excepted minimal biological width is? Correct Answer-2mm Hemostatic cord function? Correct Answer-To displace tissue laterally Purpose of the facebow? Correct Answer-to transfer the spatial relationship of the Maxilla to articular hinge axis Ditching a die does what? Correct Answer-exposes margins of the prep Wax pattern should be sprued to? Correct Answer-crown in area of the biggest bulk White, black, and gray - common characteristic? Correct Answer-Have no hues Hue is? Correct Answer-attribute of color by which it's perceivedValue - major importance? Definition? Correct Answer--is most significant dimension of ceramics -denotes the amount of black or white Chroma is? Correct Answer-is the amount or saturation of hue Red vs pink - chroma? Correct Answer-red has a chroma than pink Red vs pink - hue? Correct Answer-red is = to pink in hue Anterior teeth in C/ should be located to do what? Correct Answer-passively touch the wet/dry line on the lower lip Centric Relation is? Correct Answer-is a reproducible position Buccinator is important for what with C/C? Correct Answer-retention and stability of c/c Gross interferences in an immediate C/C should be adjusted when? Correct Answer-ASAP Overhang of amalgam crown causes what? Correct Answer-causes plaque accumulation & it's hard to remove #9 PFM was recently placed and now it's mobile and the gums are red. Reasons? Correct Answer-tooth may be in hyper occlusion **If the root is 16 mm long, what's the max amount of post length? Correct Answer-11mm What's not part of perio dx? Correct Answer-bacteria survey and make up What should be done after a reline? Correct Answer-chk & decrease the vertical dimensionAnti HTN drugs can effect retention of C/C because? Correct Answer-b/c it causes zero atomistic Don't use porcelain teeth on C/natural because? Correct Answer-b/c of wear Immediate c/c doesn't fit. Do what? Correct Answer-use pip until it seats Immediate C/C. Denture steps? Correct Answer-wait a min of 8 weeks after posterior teeth have been ext before impressions are taken for immediate c/c When selecting tooth shade, pt position and light source? Correct Answer-sit patient upright and don't shine direct light in mouth **Precision/semiprecision attachment isn't indicated with what pts? Correct Answer-in pt with low manual dexterity **Blood test to assess Coumadin? Correct Answer-PT test What's true if pt is on steroids? [know what for DMD?] Correct Answer-must know duration and dosage before tx If patient complains of lethargy at appt, do what? Correct Answer-refer to MD and reappoint Pt is taking Aspirin, Pen VK, Naproxene. Which will increase pocket depth? Correct Answer-None Propulsid is for? Correct Answer-GERD Signs of GERD? Correct Answer-look for acid, erosion, and wearContraindication to apically positioned flaps in anterior? Correct Answer-Esthetics [bone loss?] **Best cement to increase retention of crown? Correct Answer-Resin **According to CDC, sterilizers/autoclave are monitored how often? Correct Answer-Weekly Pt has difficulty turning neck. Dx? Correct Answer-Eagle syndrome Syncope vs. anaphylactic shock. Difference? Correct Answer-Pt with anaphylaxis has wheezing (trouble breathing) Pt has hepatitis A. Major dental consideration? Correct Answer-You can work on him after a week of having it Identify: [Picture] *shows ulcers with other episodes Correct Answer-recurrent aphthae Identify: [Radiograph] *PA of tooth with weird trabeculae (decreased maybe) Correct Answer-sickle cell anemia Identify: [Picture] *Slide of blue sclera but answer choices were: a) dentin dysplasiab) amelogenesis imperfecta *did not include osteogenesis imperfect or dentinogenesis imperfect Correct Answer-amelogenesis imperfecta ??? Big diastema. Do what? Correct Answer-leave alone Identify: [radiograph] *Pano with RL around an impacted molar Correct Answer-dentigerous cyst Identify: *Painful big swelling adjacent to extraction site Correct Answer-dry socket ??? How treat dry socket? Correct Answer-irrigate and pack with iodoform with eugenol Before relining the complete denture, you do what? Correct Answer-build up posterior occlusion HIV pt - what do you do? Correct Answer-treatment that does not cause bleeding OSHA requires autoclaves to be tested how often? Correct Answer-weekly Kidney patient - prescribe what? Correct Answer-acetaminomphen Identify: [Picture] *Arrow to RPD clasp that is cervical to HOC Correct Answer-retentive clasp Diabetes pt with burning tongue due to? Correct Answer-malnutritionMain reason why sealants fail? Correct Answer-contamination Why do you do perio cleaning before extracting for an immediate denture? Correct Answer-Healthy gingiva heals faster Identify: [radiograph] *Remants of primary teeth Correct Answer-Remants of primary teeth Identify: [picture] *Lip with bluish lump Correct Answer-mucocule Identify: [picture] *RP lesion in sinus on pan Correct Answer-mucocele Name of radiograph that gives better view of the maxillary sinus? Correct Answer-Waters' view Big cavity - what's best for pulp and gingival health? a) gold onlay b) pfm Correct Answer-*I put gold onlay but not sure. Acid etching does all EXCEPT: a) increase surface area, b) make surface for bonding agent, c) increase tags, d) create bond chemically Correct Answer-d) create bond chemically (worded weirdly)***Identify: [radiograph] *taurodontism Correct Answer-taurodontism Identify: [radiograph] *Large central incisor Correct Answer-germination [Picture] Herringbone slide - what do you do? Correct Answer-Reverse the film Identify: [photo] *White lesion with red border, healed with SCARRING Correct Answer-MAJOR aphthae Tx major aphthous? Correct Answer-corticosteroids Identify: [radiograph] *Pic of opalescent teeth (lucent) Correct Answer-dentinogenesis imperfecta Identify: [radiograph] *obliterated pulps Correct Answer-dentinogenesis imperfecta Identify: [radiograph] *BW of teeth with no enamel Correct Answer-amelogenesis imperfectaMax ant teeth missing, best implant? Possible complication for implant above? Correct Answer--endosseous -penetrate nasal cavity What would you expect after perio cleaning with chronic generalized perio pt? Correct Answer-- reduction of inflammation and pocket depth decrease of 1-2mm *other choices: just reduction of inflammation, reduction of inflammation pocket depth and attachment loss (this was asked 2x) Spaces between teeth after perio cleaning. Why? Correct Answer-From removing calculus, decreases pocket depth and inflammation After cleaning, 1 month recall there is still bleeding. Why? Correct Answer-Retained subgingival plaque Poorly controlled diabetic with caries and bad looking gums. Best to? Correct Answer--hold off on restorative and perio cleaning and refer to physician for consult. Identify and Tx: [radiograph] *Slide with scalloping RL on roots Correct Answer-Dx - aspiration (traumatic bone cyst) Tx - leave alone and observe [radiograph] *maxillary central incisors with huge RL around both roots.Endo is done on #9 but pt still feels pain. Tx? Correct Answer-Do endo on #8 [photo] *tongue, swollen lesion What do you do? Correct Answer-Palpate to see if firm and indurated Dx: [radiograph] *RL behind permanent M2 (no M3) Correct Answer-primordial cyst **OSHA requires that patient and dentist wear? Correct Answer-eyewear [? organization] requires dentist to do what before putting gloves on? Correct Answer-dentist washhands before putting on gloves **Blurred/fuzzy x-ray. Cause? Correct Answer-patient moved [pano radiograph] *shows half regular sized teeth, other half was larger Correct Answer-head twisted or turned (weirdly worded) [radiograph] *shows dark PA Cause? Correct Answer-too much time developing radiograph Which one is NOT required for a PAN? Correct Answer-thyro