Management (12)

551. Color Stability is better in:?

 Porcelain.

 Composite.

 GIC.

 Amalgam

552. Best stress transfer under amalgam:?

 With thin base layer.

 With thick base layer.

 If put on sound dentin.

 GIC

553. Old patient came to replace all old amalgam filling he had sever occlusal attrition the best replacement is:?

 Composite.

 Amalgam.

 Cast metal restoration.

 Full crowns.

554. When removing moist carious dentin which exposes the pulp, dentist should:?

 Do direct pulp cap.

 Do indirect pulp cap.

 Prepare for Endo.

 Filling

555. In a class III composite with a liner underneath, what's the best to use:?

 Light cured GI.

 ZNO Eug.

 Reinforced ZNO Eug.

 Ca(OH)

556. Cavity etching before applying GIC is:?

 Polyacrylic acid 10 seconds.

 Polyacrylic acid 60 seconds.

 Phosphoric acid 10 seconds.

 Phosphoric acid 60 seconds.

557. Patient came to your clinic complaining of pain, upon examination you can’t find a clue. What’s the next logical step to do in investigation :?

 Panoramic x-ray.

 CT Scan.

 MRI.

 Regular tomography.

558. Which surface of the central incisor that contacts the median line:?

 Distal.

 Mesial.

 Buccal.

 Lingual.

559. Retention of amalgam depends on:?

 Amalgam bond.

 Convergency of walls occlusally.

 Divergency of walls occlusally.

 Retentive pins

560. Composite is used mainly for?

 Anterior teeth.

 Posterior.

 Primary tooth

 None.

561. The instruments for examination are:?

 Probe and Tweezers.

 Mirror.

 Mirror, Probe and Tweezers

 Amalgamator.

562. Panorama x-ray is used for:?

 Periapical tissues.

 Interproximal caries.

 Giving complete picture for upper and lower jaw.

 None.

563. A preventive agent is:?

 Composite.

 Glass-Ionomer.

 Fluoride.

 Zinc oxide eugenol.

564. One of the following releases fluorides:?

 Composite.

 Glass-Ionomer.

 Fluoride.

 Zinc oxide eugenol.

565. Main use of dental floss:?

 Remove calculus.

 Remove over hang.

 Remove bacterial plaque.

 Remove food debris.

566. What is the benefit of rinsing the mouth with water:?

 Plaque removal.

 Prevent the formation of plaque.

 Dilute the concentration of bacteria.

 All are corrects

567. The water reins devices for periodontal therapy has a main goal which is:?

 Remove plaque.

 Prevent plaque attachment.

 Dilute bacterial toxin.

 Remove dental pocket.

568. Floss used to:?

 Remove Interproximal plaque.

 Remove overhangs.

 Stimulate gingival.

 All are corrects

569. Plaque consists of:?

 Bacteria.

 Inorganic material.

 Food.

 All are corrects

570. To prevent perio problem MOST effective method is:?

 Community program.

 Removal of plaque.

 Patient education.

 All are corrects

571. Caries consist of:?

 Bacteria.

 Fluid.

 Epithelial cells.

 All are corrects

572. Acute periodontal abscess:?

 Fistula present.

 Swelling enlargement in tooth site.

 None of the above

573. Chronic suppurative periodontitis:?

 PT complains from moderate pain.

 Fistula with drain.

 Pulp polyp in open coronal carious lesion.

 All are corrects

574. Periodontal ligament fibers in the middle third of the root is:?

 Oblique.

 Horizontal.

 Transeptal

 All are corrects

575. Chlorhexidine is used as mouth wash in the concentration of:?

 0.1-0.2 %.

 1-2 %.

 5-10 %.

 20 %.

576. Supra calculus all true EXCEPT:?

 Hard and rough.

 Easy to detach.

 Has component of saliva.

 All are corrects

577. Cementum is formed from:?

 Cementoblasts

 Fibroblasts.

 Cementicles.

 All are corrects

578. An 18 years old Pt present complaining of pain, bad breath and bleeding gingival. This began over the weakened while studying for the final exam. The Pt may have which of the following conditions:?

 Acute necrotizing ulcerative gingivitis

 Rapidly progressive periodontitis

 Desquamative gingivitis.

 Acute periodontal cyst.

579. Periodontally involved root surface must be root planed to:?

 Remove the attached plaque and calculus.

 Remove the necrotic cementum.

 Change the root surface to become biocompatible

 Remove the attached plaque and calculus and Remove the necrotic cementum

580. Dental plaque is formed after :?

 6 hours.

 12 hours.

 24 hours.

 48 hours.

581. The periodontium comprise which of the following tissues:?

 Gingiva and the PDL.

 Gingival, PDL, and alveolar bone.

 Gingival, PDL, alveolar bone, and cementum.

 Gingival, PDL, alveolar bone, cementum, and enamel.

582. (7 y/o boy) came to the clinic in the right maxillary central incisor with large pulp exposure:?

 Pulpectomy with Ca(OH)2.

 Pulpotomy with Ca(OH)2.

 Direct pulp capping.

 Leave it.

583. (8 years old) come with fractured Max incisor tooth with incipient exposed pulp after 30 min of the trauma , what’s the suitable Tx:?

 Pulpatomy.

 Direct pulp capping.

 Pulpectomy.

 Apexification.

584. (8 years old) child came to your clinic with trauma to upper central incisor with pulp exposure and extensive pulp bleeding your treatment will be:?

 Direct pulp cappining.

 Pulpectomy with gutta percha filling.

 Apexification.

 Pulpotomy with calcium hydroxide.

585. 7 years old boy came to the clinic in the right maxillary central incisor with large pulp exposure:?

 Pulpectomy with Ca(OH)2.

 Pulpotomy with Ca(OH)2.

 Direct pulp capping.

586. In primary tooth for restoration before putting the filling you put:?

 Base.

 Calcium hydroxide.

 Varnish.

 You put the filling after proper cleaning and drying

587. With children rubber dam not use with:?

 Hyperactive patient.

 Obstructive nose.

 Patient with fixed orthoappliance.

 Mildly handicapped and uncooperative.

588. Mandibular 1st permanent molar look in morphology as:?

 Primary 1st mand molar

 Primary 2nd mand molar.

 Primary 1st max molar.

 Primary 2nd max molar.

589. Success of pit & fissure sealants is affected mainly by:?

 Increased time of etching.

 Contamination of oral saliva

 Salivary flow rate.

 Proper fissure sealant.

590. The most affect tooth in nurse bottle feeding :?

 Lower molars.

 Upper molars.

 Max incisor.

 Man incisor.

591. In children, the mandibular foramen is low in relation to the occlusal plane. When you give inferior dental block for pedodontic patient the angulations for the needle:?

 7 mm below the occlusal plane.

 5 mm below the occlusal plane.

 7 mm above the occlusal plane.

 At the occlusal plane.

592. Actual destruction of micro-organisms in the root canal is attributed mainly to:?

 Proper antibiotic thereby.

 Effective use of medicament.

 Mechanical preparation and irrigation of the canal.

 None of the above.

593. A tooth very painful to percussion, doesn’t respond to heat, cold or the electric pulp tester.The most probable diagnosis is:?

 Reversible pulpitis.

 Irreversible pulpitis.

 Acute apical periodontitis.

 All are corrects

594. RCT contraindicated in:?

 Vertical fracture of root.

 Diabetic Pt.

 Unrestored teeth.

 Periodontally involved teeth.

595. Hyperemia of the pulp result in :?

 Trauma of occlusion.

 Pain of short duration.

 Radiographic changes.

 All of above.

596. 21 years old with pathological exposure in #35. Management:?

 Direct pulp capping.

 Indirect pulp capping.

 Root canal treatment.

 None

597. 20 years old male came with severe pain on chewing related to lower molars. Intraoral examination reveals no caries, good oral hygiene, no change in radiograph. Patient give history of bridge cementation 3 days ago. Diagnosis:?

 Pulp necrosis.

 Acute apical periodontitis.

 Chronic apical abscess.

 None of the above.

598. Bacteria in root canal Pathosis:?

 Mixed anaerobe and aerobe.

 Single obligate anaerobe.

 Aerobic.

 None of the above.

599. The accesses opening for a maxillary premolar is most frequently:?

 Oval.

 Square.

 Triangular.

 None of the above.

600. The correct access cavity preparation for the mandibular second molar is:?

 Oval.

 Quadrilateral.

 Round.

 Triangular.