Materials-prostho

A 50 years old patient demands for a gold crown for his teeth. Which type of gold alloy will you ask your technician to use to fabricate fixed partial denture?

The technician applies a layer of die spacer on the die to create a space for the luting agent, the ideal dimension for this luting agent space is

according to ADA the fluoride supplements needed for 5 months child old take >0.6 ppm water fluoridated per day

A post and core unit found detached in few days after cementation. What type of cement will be the best option for obtaining a root- cement-post and core unit that is bonded?

A patient with ‘Diastema’ approached the dentist to improve his aesthetic appearance. What would be the ideal material for treating the current scenario?

An elastomeric impression was poured using dental stone. After some time, the poured model found slightly hot on touching. One of the following statements is true for this situation

Using proper terminology is essential for communicating with the patient as well as the lab technician, what would you call the component of the implant assembly on which the prosthetic tooth is fixed?

A patient underwent total maxillectomy due to carcinoma. In your opinion, which of the following provides best retention aids to fabricate large maxillofacial prosthesis that rest on movable tissue bed?

A patient by name Abdulla came to college of Dentistry clinic for replacement of his missing teeth. On thorough intraoral examination, treatment plan includes a distal extension partial denture. Which of the following is considered the least favorable choice of retainer in a distal extension removable partial denture design?

which of the following impression material have chemical setting reaction (irreversible )

Which one of the following impression material have chemical setting reaction (irreversible )

All of the following impression material are elastic except

The longest working time among elastomers is

Pouring time for polysulfide

which one of the following have the longest setting time

which of the following impression material have highest tear strength

impression material should be poured within 30 minute

which of the following impression material have ethyl alcohol by product

impression material have hydrogen gas release that may cause minute gaseous voids in gypsum casts

Impression material can poured after 24 hr

Which of the following impression material is complicated with latex gloves(sulfur inhibit set)

Excellent reproduction of surface details

impression material can poured up to one week

impression material have the best elastic recovery

patient have mild gaging reflex intolerance to impression material how to accelerate the setting time for alginate impression material

Alginate impression material the retention in tray take place by

which of the following impression material has highest permanent deformation 3-5%

Polyether impression material should be poured within

an alginate impression material stored in water or cover by wet paper towel you notice that alginate become expand this condition called

you take an alginate impression at the end of day the impression open to the air in next day the impression become distorted and shrinkage this condition called

ANSI /ADA specification recommend that the standard luting consistency of dental cement must exhibit a minimum 24 hr compressive strength of

which of the following is an indication of calcium hydroxide

PH for calcium hydroxide

According to ADA classification of ZOE which type is using for temporary restoration

first cement introduce with adhesive bond to tooth structure

Which of the following is suitable material under amalgam restoration

All of the following consider to be liner except

the base thickness under restoration should be

AH 26 setting time

AH plus setting time

All of the following are advantages of AH plus except

According to GIC classification which type use for luting

5 years child came with multiple teeth decayed after examination the cares away from pulp and patient asymptomatic which type of GIC used for restoration

6 years child after complete pulpotomy the suitable type of GIC for core build up is

complete setting for GIC take place in

which one of the following is an advantages of GIC

37 years old came with class V cavity in lower anterior teeth during examination you found that caries extended to root surface which type of restoration is recommended for this case

Most common irrigants used during RCT is

Which one of the following irrigation materials is capable to remove organic debris

which type of root canal filing material used in showing picture

the percent of filler ( zinc oxide ) in Gutta percha

The percent of Gutta percha (matrix ) in root filling

the big drawback of conventional composite restoration

all of the following an indication of composite restoration except

function of Silane coupling agent in composite is

according to ADA the fluoride supplements needed for 6 years child take 0.5 ppm fluoridated water the supplements needed in mg

the least cost effective methods to prevent dental caries

the percentage of NAF in fluoride varnish

42 years old female complaining of pain in lower left side during examination you found #36 have deep caries the pain released after removing stimuli , no radiographic change you decide to do amalgam restoration to reduce the postoperative sensitivity and irritation what is material of choice to protect pulp

18 years old patient came with deep caries after complete remove of caries the sequence of restoration under amalgam restoration from the nearest to pulp to outer layer

the concentration of fluoride in 1.23 % of APF (acidulated phosphate fluoride )

The concentration of fluoride in 2% NAF (sodium fluoride )

Which type of following topical fluoride that cause pigmentation and gingival irritation

what is the contraindication of amalgam restoration

All of the following an advantages of amalgam restoration except

composition of amalgam restoration

Acts as a deoxidizer and scavenger causes delayed expansion of amalgam

Which of the following components of amalgam responsible to reduce the tarnish and corrosion

which of the following elements increased amalgam strength and hardness

the weakest phase of amalgam which make amalgam susceptible to corrosion

To eliminate γ2 phase in amalgam restoration adding

According to ISO which type of gypsum product used for diagnostic cast

Which type of gypsum products have high strength low expansion

Which type of acid etchants used for enamel etching during composite restoration

The percent of phosphoric acid etchants

Hydrofluoric acid etchant used for

Hydrofluoric acid percent

Dentin conditioner that enhance bonding between GIC and dentin

Polyacrilic acid percent

First layer consisting of porcelain modified with opacifying oxides

Cohesive failure mean

60 years old patient come to replace his single crown on tooth number 11 during examination you found that incisal edge broken (ceramic chips-off ) which involved only porcelain no metal display the type of failure there

Identify the type of ceramic fracture in the showing picture

which type of cement mixed with stainless steel spatula with cool glass to get proper consistency

Gate gladden drill size 4

Most widely used investment material in dentistry

The highest composition in investment material is

The percent of refractory in gypsum bonded investment material

Investment material used for conventional casting of inlay , onlays, crowns, and partial denture made of gold alloys(low temperature).700 0C

According to metal casting procedure B arrow indicate to

Used for casting high fusing alloys metal ceramic alloys and base metal alloys like nickel- chromium and cobalt- chromium temperature 1200oC-1300oC

Pre-heating (Drying) to removes all water content in porcelain for low fusing porcelain temperature and time

All of the following base metal alloys except

The noble metals are

Shade selection distance made at

Vita classic shade guide the letter groups represent to

Degree of saturation represent to

The brilliance is the relative darkness or lightning of color

The best surface area effected by topical fluoride

Dimensional stability from the best to worst

Elastomeric impression materials (from lowest to highest stiffness) are…

If remaining dentin thickness is ≥ 2 we should apply under restoration

If the remaining dentin thickness is < 1 we should apply under restoration

according to ADA the fluoride supplements needed for 5 months child old take >0.6 ppm water fluoridated per day

According to WHO the standard rate of fluoride in drinking water

Based on copper content the high copper amalgam contains

amalgam consider to be zinc free alloy when Zn

Amalgam consider to be low copper alloy when copper less than