Description : Gemination is: a. Division of single tooth, twining. b. Fusion of two or more crowns of teeth c. Fusion of two or more roots.
Last Answer : a. Division of single tooth, twining.
Description : A child has less than the normal number of teeth, the mandibular lateral incisor is larger than usual, on x rays it shows with two roots and two roots canals; your diagnosis is:** A. Dilaceration B. Gemination C. Fusion D. Concrescence E. Taurodontism
Last Answer : C. Fusion
Description : The main factor controlling a decision to increase the occlusal height of teeth for extensive oral reconstruction is whether, A. the inter occlusal distance will be physiologically ... the aesthetic appearance of the patient will improve sufficiently to warrant the planned reconstruction
Last Answer : A. the inter occlusal distance will be physiologically acceptable after treatment
Description : The main factor controlling a decision to increase the occlusal height of teeth for extensive oral reconstruction is whether, A. The inter occlusal distance will be physiologically ... . The aesthetic appearance of the patient will improve sufficiently to warrant the planned reconstruction
Last Answer : A. The inter occlusal distance will be physiologically acceptable after treatment
Description : An advantage of metal. ceramic crowns, compared wit full ceramic crowns for restoring anterior teeth is, A. Palatal reduction may be of minimal thickness. B. Overall conservative for tooth structure. C. Ability to watch the appearance of adjacent natural teeth. D. Less laboratory time.
Last Answer : A. Palatal reduction may be of minimal thickness.
Description : An advantage of metal-ceramic crowns, compared wit full ceramic crowns for restoring anterior teeth is, A. Palatal reduction may be of minimal thickness B. Overall conservative for tooth structure C. Ability to watch the appearance of adjacent natural teeth D. Less laboratory time
Last Answer : A. Palatal reduction may be of minimal thickness
Description : What contraindicates pulp capping: A. Accidental exposure on vital young molars B. When inflammation of radicular pulp is already present C. When roots are greatly curved and tortuous D. When anterior tooth is vital and immature with wide open apices E. None of the above
Last Answer : B. When inflammation of radicular pulp is already present
Description : A primary molar has relatively un-resorbed roots encompassing the permanent tooth bud. What extraction technique would you use to avoid the inadvertent removal of a developing bicuspid
Last Answer : Section the tooth vertically and remove each root separately
Description : A healthy 6 years-old child presents with carious maxillary second primary molar with a necrotic pulp. Which treatment would be preferred? A. Extraction B. Indirect pulp treatment C. ... normal exfoliation) D. Pulpectomy to preserve the tooth as a space manteiner. E. Antibiotic coverage
Last Answer : D. Pulpectomy to preserve the tooth as a space manteiner.
Description : The major etiological factor responsible for Class II division 2 malocclusion in Angle’s classification is:** A. Thumb sucking B. Growth discrepancy C. Tongue thrust habit D. Tooth to jaw size discrepancy E. Skeletal cause (discrepancy)
Last Answer : E. Skeletal cause (discrepancy)
Description : As far as surgical removal of wisdom teeth is concerned which of the following is true? a- Prophylactic prescription of antibiotic reduces dramatically the chances of infection. b- Raising a lingual ... e- The use of vasoconstrictors in local anaesthetics will increase the chances of infection.
Last Answer : b- Raising a lingual flap will increases the incidence of neurapraxia but will reduce the incidence of neurotmesis with respect to the lingual nerve.
Description : As a result of wrong use of tooth brush the patients MOST probable complaint will be, A. Spontaneous pain or discomfort B. Occasional pain during brushing of the teeth C. Occasional pain during consumption of sweets
Last Answer : C. Occasional pain during consumption of sweets
Description : What control tooth or teeth should be used when testing a suspected pulpally involved tooth: A. Adjacent tooth and contralateral teeth B. Contralateral and opposing teeth C. Opposing and adjacent teeth D. Test only suspected tooth/teeth E. All of the above
Last Answer : A. Adjacent tooth and contralateral teeth
Description : 10 years-old boy looses a permanent mandibular molar; what is affected: A. Teeth adjacent to extracted teeth B. Teeth on both arches on same side C. The remaining teeth in the mouth D. Teeth directly opposite to the extracted tooth E. Teeth on the same quadrant
Last Answer : C. The remaining teeth in the mouth
Description : The surface of enamel rod prisms in permanent teeth is: A. Perpendicular to the outer surface of the tooth B. Parallel to the outer surface of the tooth C. Parallel to enamel contour D. Parallel to enamel-dentine contour
Last Answer : A. Perpendicular to the outer surface of the tooth
Description : Calculus attaches to teeth surfaces by: A. Acquired pellicle B. Interlocking to the crystals of the tooth C. Penetrated into enamel and dentine D. Mechanical interlocking E. All of the above
Last Answer : E. All of the above
Description : The most important indication of malignant lesions is:CHECK A. Pain B. Paresthesia C. Teeth movement D. Tooth resorption
Last Answer : B. Paresthesia
Description : Ante’s Law: Dr. Ante in 1926 stated that, A. “The combined pericemental area of the abutment teeth should be equal to or greater than pericemental area than tooth or teeth to be replaced”
Last Answer : A. “The combined pericemental area of the abutment teeth should be equal to or greater than pericemental area than tooth or teeth to be replaced”
Description : What is the main purpose of using Stress breakers: A. To distribute the load between teeth and ridges B. To distribute the load between the clasps and the face end of the saddle C. It relieves the abutment tooth of occlusal loads that may exceed their physiologic strength
Last Answer : C. It relieves the abutment tooth of occlusal loads that may exceed their physiologic strength
Description : Of all the factors that increase the resistance of teeth to dental caries, THE MOST EFFECTIVE is,** A. The general nutrition of a child during the period of tooth formation B. The ... eruption D. Sufficient intake of calcium and Vitamin D during the period of enamel mineralization and maturation
Last Answer : B. The intake of fluoride during the period of enamel mineralization and maturation
Description : As far as surgical removal of wisdom teeth is concerned, which of the following is true?**CHECK A. Prophylactic prescription of antibiotic reduces dramatically the chances of infection B. Raising ... root E. The use of vasoconstrictors in local anaesthetics will increase the chances of infection.
Last Answer : C. Prophylactic prescription of dexamethasone will dramatically reduces post operative swelling
Description : Titanium is used in dentistry A. In a very pure form in implants B. In an alloy with aluminium in casting for crowns and bridges C. In an alloy with nickel in orthodontic wires D. A and B E. A, B and C
Last Answer : E. A, B and C
Description : What is the minimal labial reduction for porcelain metal crowns: A. 1mm B. 1.5mm C. 0.5mm
Last Answer : B. 1.5mm
Description : Which is correct in regard to shade selection of crowns: A. It should be selected before starting preparation B. Chroma is the lightness/darkness of colours C. Value is the colour itself D. Hue is the concentration of colours
Last Answer : A. It should be selected before starting preparation
Description : The most common cause of porosity in porcelain jacket crowns is, A. Moisture contamination B. Excessive firing temperature C. Failure to anneal the platinum matrix D. Excessive condensation of the porcelain E. Inadequate condensation of the porcelain
Last Answer : E. Inadequate condensation of the porcelain
Description : When primary molars are prepared for stainless steel crowns, should the depth for reduction of the proximal surface be similar to the depth of the buccal and lingual surfaces? A. Yes; reduction ... can be seated E. No, because of lateral constriction, the lingual surface needs greatest reduction
Last Answer : B. No, proximal reduction is greater to allow the crown to pass the contact area
Description : In regard to dentinogenesis imperfecta on x-rays, what is TRUE: A. Short and blunted roots B. The pulp canal is obliterated C. Big pulp chamber, thin dentine and normal enamel D. Type III, characteristic shell teeth E. All of the above
Description : What is your management of a single retroclined upper incisor in a 9 years-old child with sufficient space: A. Anterior inclined plane on mandibular teeth B. Biteplane and protrusion screw C. Expansion screw D. Hawley appliance
Last Answer : A. Anterior inclined plane on mandibular teeth
Description : I've had more than two sets of adult teeth should I get my crowns and teeth removed and hope that I get an additional set?
Last Answer : First I must say that I have never heard of anything like that ever. I seriously doubt there would be more to come. Xrays would show however if there were. You can see them on Xrays of children. The adult teeth are visible under the baby teeth.
Description : Why is gold bullion malleable while gold teeth crowns not?
Last Answer : The gold in a filling has been melted and mixed with a hardening mineral (palladium, tin, etc.) so it will last longer.
Description : How long do your teeth hurt after getting dental crowns?
Last Answer : I had several crowns and they do cause a little discomfort for a while after they are first fitted. I think mine took about a week to settle but eventually they stopped hurting and were as good as my ... disturbed he can put your mind at rest and give you advice on how to clean and look after it.
Description : Fusion temperature of impression compound should occur: A. Below mouth temperature B. Above mouth temperature C. As of the skin temperature D. At the room temperature E. None of the above
Last Answer : B. Above mouth temperature
Description : During mouth preparation for RPD on tooth adjacent to edentulous area. There is dentine exposure: A. Restoration is required B. Proceed with rest seat preparation and fabrication if involved area is not more than 2mm
Last Answer : A. Restoration is required
Description : In bridge work, which of the followings terms is NOT CORRECT: A. A retainer could be a crown to which a bridge is attached to B. A connector connects a pontic to a retainer or two retainers to each ... lie and comes in contact with pontic D. A pontic is an artificial tooth as part of a bridge
Last Answer : C. The saddle is the area of the edentulous ridge over which the pontic will lie and comes in contact with pontic
Description : In testing for mobility, which of the following statement is true: a.Heavy pressure must sometimes be used to test mobility. b.Only lateral mobility is significant in diagnosis and ... weakened. d.During the periodontal examination each tooth should be tested individually for hyper mobility.
Last Answer : d.During the periodontal examination each tooth should be tested individually for hyper mobility.
Description : Which of the following is true regarding preparation of custom tray for elastomeric impression: a. Adhesive is preferred over perforation. b. Perforation provides adequate retention c. Adhesive is ... before procedure d. Perforations are not made in the area over the prepared tooth .
Last Answer : a. Adhesive is preferred over perforation.
Description : Amalgam restoration, when do you have to replace it? a. Ditching of the edges. b. The probe penetrates the area between the margin and tooth tissue. c. Fissure of the surface of the amalgam. d. When there is chronic inflammation of the pulp.
Last Answer : c. Fissure of the surface of the amalgam.
Description : Generalised loss of tooth structure by chemical means called, A. Erosion B. Attrition
Last Answer : A. Erosion
Description : Gracey curette is characterized by, A. The blade and the shank form 90º angle B. Can be used on both sides C. Can be used on any tooth surface D. It is specific for each surface of the tooth. 70o the other options are for universal
Last Answer : D. It is specific for each surface of the tooth. 70o the other options are for universal
Description : In the construction of a full veneer gold crown, future recession of gingival tissue can be prevented or at least minimised by, A. Extension of the crown 1 mm under the gingival crevice B. ... of the crown D. Slight under contouring of the tooth in the gingival one fifth of the crown
Last Answer : B. Reproduction of normal tooth incline in the gingival one third of the crown
Description : Following calcium hydroxide pulpotomy, the dentist would expect dentine bridge to form at, A. The exact level of amputation B. Level somewhere below the amputation C. Half way between amputation and apex D. At the apical region of the tooth
Last Answer : B. Level somewhere below the amputation
Description : An occlusal approaching clasp TIP, A. Should occupy a predetermined undercut B. Contact the tooth under the survey line C. Rigid
Last Answer : B. Contact the tooth under the survey line
Description : The best storage media for avulsed tooth is, A. Saline B. Milk C. Water D. Saliva
Last Answer : B. Milk
Description : A patient comes to you with medium pain of tooth filled with Composite resin as a result of cold or hot drinks, what will your initial management be, A. Remove the restorative material and ... material and place a sedative temporary material C. Place a coat of bonding material on the old composite
Last Answer : B. Remove the restorative material and place a sedative temporary material
Description : In preparing a very small proximal amalgam cavity on a molar tooth what would consider, A. Extend the cavity to the gingival margin B. Extend the cavity beyond the contacts areas C. Achieve at least 2mm in dentine D. Extend cavity just beyond dento enamel junction
Last Answer : D. Extend cavity just beyond dento enamel junction
Description : The ideal length of core in the fabrication of crown and core of endodontically treated tooth is, A. 1.5 of crown length B. The length of the crown C. 2/3 tooth/root length D. ½ root length
Last Answer : C. 2/3 tooth/root length
Description : If used, in which direction should pinholes be placed? a. parallel to the long axis of the tooth b.parallel to the nearest external surface c. at a 15 degree angle to the long axis of the tooth d. perpendicular to the gingival floor e. directly below and parallel to restored cusp tip
Last Answer : b.parallel to the nearest external surface
Description : A patient shows a lesion on the tongue adjacent to sharp tooth. You “round off” the sharp area and recall patient after one month to see the lesion turning smaller in size. What would be your next step: A. Keep observing B. Perform an excision biopsy C. Prescribe Kenalog and Orabase
Last Answer : A. Keep observing
Description : The MOST likely factor contributing to tooth eruption is:** A. The growing root B. Bone growth C. Vascular pressure D. The developing periodontal ligament
Last Answer : A. The growing root
Description : An endodontic therapy was completed on a tooth with a periapical radiolucency. Marked reduction in size of radiolucency is expected in approximately: A. One year B. 6 months C. 3 months
Last Answer : A. One year