CDCA NERB remembered Q's & As. 2022 update Questions and answers, Graded A+

CDCA NERB remembered Q's & As. 2022 update Questions and answers, Graded A+ **Disadvantage of a resin bonded denture (Maryland Bridge)? - ✔✔Debonding Advantage of a Maryland Bridge? - ✔✔Less tooth reduction Gu ...

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