The un-polymerized monomer in Self-cured resin is approximately:**
A. 0.5%
B. 2.5%
C. 5%
D. 10%

1 Answer

Answer :

C. 5%

Related questions

Description : The volume shrinkage of methyl metacrylate monomer when polymerized is:** A. 12% B. 15% C. 18% D. 21%

Last Answer : D. 21%

Description : In 3rd generation dentin bonding agents, HEMA (Hydroxyethylmethacrylate) is 1. a hydrophilic monomer that wets the dentinal surface 2. a hydrophilic resin that forms a hybrid layer by chemically reacting the intertubular dentin. 3. a hydrophilic ... a. 1,2 b. 1,4 c. 2,3 d. 1,3 e. 3,4

Last Answer : b. 1,4

Description : The effect of the temperature rising above 100ºC on heat-cured denture-base acrylic resins is: A. Produces porosity on the external portion of the resin. B. Produces porosity on the internal portion ... porosity on the surface of the resin. D. Prevents porosity on the interior of the resin

Last Answer : B. Produces porosity on the internal portion of the resin.

Description : .What is the percentage of the echant agent used with composit resin restorations? a . 37% of phosphoric acid in water. b. 15% c. 18.5% d. 41%

Last Answer : a . 37% of phosphoric acid in water.

Description : Etching a hybrid glass ionomer-composite a. is necessary for composite resin bonding b. is not necessary for composite resin bonding c. is necessary for adding a glass ionomer cement for repair ... glass ionomer cement for repair e. a 3-5 second etch with 10% phosphoric acid is recommended

Last Answer : b. is not necessary for composite resin bonding

Description : The contraction of gold alloys on solidifying is approximately: A. 0.5% B. 2.5% C. 1.40% D. 3%

Last Answer : C. 1.40%

Description : The setting expansion of casting investment is approximately A. 0 to 0.1% B. 0.1 to 0.5% C. 0.5 to 1% D. 1.1 to 1.6%

Last Answer : B. 0.1 to 0.5%

Description : Self polymerising acrylic resins differ from heat cured resins because they exhibit: A. Higher molecules weight B. Higher content of residual monomers

Last Answer : B. Higher content of residual monomers

Description : The concentration of Fluoride in the topical NaF A. 2% B. 5% C. 8% D. 10%

Last Answer : B. 5%

Description : What is the active agent in most home (night guard) bleaching solutions? a. 2-5% carbamide peroxide b. 10 - 15% Phosphoric acid c. 10 - 15% carbamide peroxide d. 35% hydrogen peroxide e. 5 - 10% citric acid Attention:

Last Answer : c. 10 - 15% carbamide peroxide

Description : What is the percentage of leukoplakia turning into cancer:** A. 5%-6% B. 10% C. 25%

Last Answer : A. 5%-6%

Description : The clinical advantage of porcelain laminate veneers over composite resin veneers is: A. Color stability and resistance to abrasion B. Availability of self-curing or light activated placement (yes but not ... dentist's abilities) D. May be used in edge to edge occlusion or Class III relationships.

Last Answer : A. Color stability and resistance to abrasion

Description : When considering visible light cured composites, which of the following statements is incorrect? A. An air-inhibited layer is present superficially on the composite. B. The wavelength of the light which affects ... composite. (smaller particles absorb more light) D. B and C E. All are true

Last Answer : E. All are true

Description : A major difference between light cured and chemical cured composite is that during setting or in function the light cured material tends to:******** VERY IMP A. Seal the margins better and ... on time C. Undergo greater colour change D. Shrink more rapidly E. Posses greater fracture toughness

Last Answer : D. Shrink more rapidly

Description : Where can we see long lasting composit resin? a. Class III. b. Class II c. ClassV

Last Answer : a. Class III.

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 : What is the best way to cement Maryland bridge, A. GIC B. Resin C. High compression restorative resin D. Zinc Phosphate cement E. Oxide Zinc and eugenol

Last Answer : B. Resin

Description : When incrementally placing a large composite resin restoration, what effect does an air-inhibited layer on the surface of the first increment have on the bond between the first and the second increments? A. ... B. It is desirable and improves the bond C. It is undesirable and should be removed

Last Answer : B. It is desirable and improves the bond

Description : On examination of a composite restoration you find a dark attain: A. Replace the composite B. Repair with unfilled resin C. Apply topical fluoride at the margin

Last Answer : A. Replace the composite

Description : In a posterior vital molar with a core the best material to restore is: A. Amalgam B. Composite resin C. GIC

Last Answer : A. Amalgam

Description : Sensitivity to hot and cold foods soon after cavity preparation and placement of GIC and composite resin in an upper incisor tooth is due to: A. Mechanical trauma due to cavity preparation B. Chemical C. Heat from GIC settings

Last Answer : A. Mechanical trauma due to cavity preparation

Description : A seven years-old boy fell off his bicycle 2 weeks ago and broke his maxillary central incisor. The pulp horn is visible as a pin point. The tooth is vital. Your treatment will be: A. Pulpectomy B. Place calcium hydroxide and fill with composite resin C. Calcium hydroxide pulpotomy

Last Answer : C. Calcium hydroxide pulpotomy

Description : Longest lasting resin restorations are,  A. Class I   B. Class II  C. Class III  D. Class IV 

Last Answer : C. Class III 

Description : Class V composite resin restorations can be polished, A. 24 hours after application B. Immediately after application C. 3 to 4 days D. 3 to 4 weeks E. Not at all

Last Answer : B. Immediately after application

Description : Which material is not compatible with composite resin: A. Zinc Oxide eugenol (ZOE) B. Ca(OH)2 C. Carboxylate D. Zinc phosphate cement

Last Answer : A. Zinc Oxide eugenol (ZOE)

Description : Where do Maryland bridges lose retention often: A. Resin-metal B. Resin enamel C. Resin layer

Last Answer : A. Resin-metal

Description : .In regard to the glass of quartz particles of filling restorative resin; the microfill resins tend to have, A. A higher coefficient of thermal expansion and a higher crashing strength B. ... and a higher crashing strength D. A lower coefficient of thermal expansion and a lower crashing strength

Last Answer : B. A higher coefficient of thermal expansion and a lower crashing strength

Description : Which of the following restoration material’s strength is not effected by pins: A. Amalgam B. Composite resin

Last Answer : B. Composite resin

Description : What is the advantage of composite over silicate resin: A. Less shrinkage B. Less surface erosion C. Less water absorption D. All of the above

Last Answer : D. All of the above

Description : When do you finish composite resin restorations: A. Immediately after curing B. After 24 hours C. A week after placement

Last Answer : A. Immediately after curing

Description : Patient with class II division II; the lateral incisor is missing. You want to make a fixed bridge which of the following is suitable: A. Rocket bridge using central incisor as abutment ( ... al Maryland B. Cantilever using central incisor C. Fixed bridge using the central incisor and bicuspid

Last Answer : B. Cantilever using central incisor

Description : Several applications have been suggested to increase the effectiveness of prophylactic application of topical fluoride which include all EXCEPT: A. Increase Fluoride ions in solution increase concentration B. Increase ... D. Pre-treat enamel with 0.5% phosphoric acid E. Use NH4F instead of NaF

Last Answer : B. Increase PH of fluoride

Description : Several approaches have been suggested to increase the fixation of professionally applied topical fluoride, which of the following statements IS INCORRECT regarding increasing the fixation? A. Increase concentration of ... with 0.5% phosphoric acid E. Use NH4F rather than NaF at a lower PH

Last Answer : B. Raise the PH of the fluoride solution

Description : A crown casting with a chamfer margin fits the die; but in the mouth the casting is open approximately 0.3mm. A satisfactory fit and accurate physiological close of the gingival area of the crown ... the crown E. Relieving the inside of the occlusal surface of the casting to allow for further

Last Answer : D. Making a new impression and remaking the crown

Description : Patient presents with rapidly progressive root caries on many teeth. Which of the following laboratory results would be a possible indicator of this? A. Stimulated salivary secretion rate of 1.5ml/min B. ... of 105 organism/ml E. Salivary buffering PH 5.5 > 100000 CFU/ml high caries incidence

Last Answer : E. Salivary buffering PH 5.5

Description : What is true in regard to lateral mandibular incisors A. 20% have 2 canals with one foramen B. 20% have 2 canals with two foramina C. 40% have two canals with 10% ending in two foramina D. 40% have two canals with only one ending in two foramina

Last Answer : D. 40% have two canals with only one ending in two foramina

Description : The best way to clean a cavity before the placement of GIC is,** A. H2O2 B. Phosphoric Acid C. Polyacrylic acid 10% sturdavent 563pag

Last Answer : C. Polyacrylic acid 10% sturdavent 563pag

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

Description : In a vital pulp therapy, what is the optimum depth for a pin hole in a tooth: A. 4-5mm B. Approximately 2mm C. Less than 2mm D. 1-1.5mm

Last Answer : A. 4-5mm

Description : What is the affect of office dental prophylaxis of regular six month intervals on children's oral health? A. Reduce caries incidence by approximately 30% B. Provide a long term improvement in ... term improvement in oral hygiene D. Prevent gingivitis E. Reduce the need for patient cooperation

Last Answer : C. Provide a short term improvement in oral hygiene

Description : A 8 years-old patient has 3 first premolars erupted and a swelling on the ridge of the un-erupted premolar. X ray shows a fully developed crown and ¾ roots development with no ... recision to allow eruption C. Soft tissues recision accompanied with orthodontic appliance to help with eruption

Last Answer : C. Soft tissues recision accompanied with orthodontic appliance to help with eruption

Description : What is NOT A SIGN of neurological trauma:** A. Excitement B. Shock C. Improper eye sight D. Leaning E. Sever headache F. Vomiting G. Euphonia es un pajaro H. Fixed dilated pupils

Last Answer : G. Euphonia es un pajaro

Description : In maxilla fracture, if intra cranial pressure increases:** A. It is normal B. Typically associated with tachycardia C. Associated with blood pressure D. Usually subsides spontaneously E. Typically associated with constricted and un-reactive pupil

Last Answer : C. Associated with blood pressure

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 : In cleidocranial dysplasia, which of the following would you expect to find: A. Early lose of primary teeth B. Multiple un-erupted teeth and pseudo anodontia

Last Answer : B. Multiple un-erupted teeth and pseudo anodontia

Description : If the length of a heater coil is reduced by 10% of its original length, then Power consumed by heater will? A. Increase over 10% B. Decrease by 10% (Answer) C. Decrease by 0.5% D. Increase by 0.5%

Last Answer : B. Decrease by 10% (Answer)

Description : Decrease in field strength on top of Mount Everest is A. 10% B. 5% C. 1% D. 0.3%

Last Answer : 0.3%

Description : The following solutions are isotonic (same osmolarity as the plasma): a. Harman's solution b. 0.9% saline c. 10% mannitol d. 5% glucose

Last Answer : . 5% glucose

Description : Food must be moist, with a minimum water content of _____before contamination by microorganisms and spoilage can occur. a. 18% to 20% b. 10 to 15% c. 5 to 10% d. 0 to 5%

Last Answer : a. 18% to 20%

Description : The concentration of agar to obtain semi solid media is A- 1.5-20%B- 0.5% or less C- >10% D- 10%but

Last Answer : 0.5% or less