1 - A patient who has had a recent amalgam filling in the upper teeth has a gold filling in the lower teeth, the patient complains of pain. The reason for this can be mainly_____________?
1 - A patient who has had a recent amalgam filling in the upper teeth has a gold filling in the lower teeth, the patient complains of pain. The reason for this can be mainly_____________?
Galvanism
2 - A purine which is found in saliva is_______________?
2 - A purine which is found in saliva is_______________?
Adenosine
3 - Absorption of mercury in the human body occurs least from_____________?
3 - Absorption of mercury in the human body occurs least from_____________?
Kidneys
4 - According of ADA specification No or number 1, the minimum compressive strength for silver amalgam filling aftr one hour should be________________?
4 - According of ADA specification No or number 1, the minimum compressive strength for silver amalgam filling aftr one hour should be________________?
80 Mpa
5 - Acid neutralizing substance in saliva_____________?
5 - Acid neutralizing substance in saliva_____________?
Bicarbonate
6 - Adequate mixing of mercury is indicated by_______________?
6 - Adequate mixing of mercury is indicated by_______________?
Shiny Mix
7 - Admixed high copper alloy powder contains_________________?
7 - Admixed high copper alloy powder contains_________________?
9-20% copper
8 - Advantage of minimum mercury technique or Eames technique is all Except________________?
8 - Advantage of minimum mercury technique or Eames technique is all Except________________?
Greater plasticity and adapts well to cavity walls
9 - Advantage of zinc containing amalgam is_______________?
9 - Advantage of zinc containing amalgam is_______________?
Better handling property
10 - Ag-Cu eutectic alloy has a characteristic Property of that fusion temp of_____________?
10 - Ag-Cu eutectic alloy has a characteristic Property of that fusion temp of_____________?
The resultant alloy is lesser
11 - Alveolar bone proper is also known as: or Which of the following is seen as lamina dura in an IOPA radiograph ?
11 - Alveolar bone proper is also known as: or Which of the following is seen as lamina dura in an IOPA radiograph ?
Lamina dura
12 - Alveolar process helps in providing_____________?
12 - Alveolar process helps in providing_____________?
Support the natural teeth
13 - Amalgam achieves 70% of the strength by____________?
13 - Amalgam achieves 70% of the strength by____________?
8 hours
14 - Amalgam achieves 70% of the strength by____________?
14 - Amalgam achieves 70% of the strength by____________?
8 hours
15 - Amalgam means_____________?
15 - Amalgam means_____________?
An alloy of two or more metals one of which is mercury
16 - Amalgam restorations give the best clinical service when the residual mercury content is_______________?
16 - Amalgam restorations give the best clinical service when the residual mercury content is_______________?
48-52%
17 - Among various glands, salivary gland secretion is unique in that, its secretions is unique in that, its secretion are controlled by___________?
17 - Among various glands, salivary gland secretion is unique in that, its secretions is unique in that, its secretion are controlled by___________?
Nerves
18 - An enzyme present in saliva which causes cell wall lysis____________?
18 - An enzyme present in saliva which causes cell wall lysis____________?
Lysozhyme
19 - Bartholins duct is the name of_______________?
19 - Bartholins duct is the name of_______________?
Sublingual duct
20 - Basal bone is____________?
20 - Basal bone is____________?
That part of the bone embracing apices of root of teeth
21 - Basic metabolic unit of bone is_______________?
21 - Basic metabolic unit of bone is_______________?
Osteon
22 - Bone at forming stage has_________________?
22 - Bone at forming stage has_________________?
Osteoclasts, osteoblasts, osteoid
23 - By increasing the percentage of which metal, the strength and hardness of amalgam increases_____________?
23 - By increasing the percentage of which metal, the strength and hardness of amalgam increases_____________?
Cu
24 - Calcium content of lamina dura is______________?
24 - Calcium content of lamina dura is______________?
More than the other parts of alveolar bone
25 - Carmalt's glands are______________?
25 - Carmalt's glands are______________?
Minor salivary glands (Retromolar)
26 - Cause of expansion in zinc containing amalgam is_____________?
26 - Cause of expansion in zinc containing amalgam is_____________?
Hydrogen
27 - Cavo surface angle for amalgam resoration is butt joint as____________?
27 - Cavo surface angle for amalgam resoration is butt joint as____________?
It increases compresssive and tensile strengths
28 - Chronic mercury toxicity results from_____________?
28 - Chronic mercury toxicity results from_____________?
All of the above
29 - Co-efficient of Thermal exansion of amalgam is______________?
29 - Co-efficient of Thermal exansion of amalgam is______________?
25.0 a (ppm k-1)
30 - Compare to conventional amalgams, spherical amalgams_______________?
30 - Compare to conventional amalgams, spherical amalgams_______________?
None of the above
31 - Copper content in low copper amalgam is________________?
31 - Copper content in low copper amalgam is________________?
0.06
32 - Creep value of which of the following is the highest ?
32 - Creep value of which of the following is the highest ?
Low copper amalgam alloy
33 - Decrease in creep occurs in_______________?
33 - Decrease in creep occurs in_______________?
Increase with condensation pressure
34 - Discolouration of silver alloy is due to_____________?
34 - Discolouration of silver alloy is due to_____________?
Tarnish and corrosion
35 - During amalgamation, trituration is done to_____________?
35 - During amalgamation, trituration is done to_____________?
Coat the alloy particle with mercury
36 - Dynamic creep is the______________?
36 - Dynamic creep is the______________?
Deformation of set amalgam during function
37 - Fibres which continue from bone to ligament are_____________?
37 - Fibres which continue from bone to ligament are_____________?
Sharpey's fibres
38 - Fibres which continue from bone to ligament are_______________?
38 - Fibres which continue from bone to ligament are_______________?
Sharpey's fibres
39 - Finishing and polishing of Amalgam make the restoration______________?
39 - Finishing and polishing of Amalgam make the restoration______________?
Increase in tarnish and corrosion resistance
40 - For dental amalgam, the elastic modulus and tensile strength is______________?
40 - For dental amalgam, the elastic modulus and tensile strength is______________?
21 Gpa and 27 – 55 Mpa
41 - Functional importance of maxillary sinus is______________?
41 - Functional importance of maxillary sinus is______________?
All of the above
42 - Gallium and indium added to Amalgam replace______________?
42 - Gallium and indium added to Amalgam replace______________?
Mercury
43 - Haversion systems (osteons) are found primarily in the_________________?
43 - Haversion systems (osteons) are found primarily in the_________________?
Alveolar bone proper
44 - High copper amalgam can be produced_____________?
44 - High copper amalgam can be produced_____________?
From irregular and spherical particles
45 - High copper dental amalgams are superior to other amalgams because high copper dental amalgems______________?
45 - High copper dental amalgams are superior to other amalgams because high copper dental amalgems______________?
Have less marginal breakdown
46 - High strength amalgam is achieved by_____________?
46 - High strength amalgam is achieved by_____________?
Minimum matrix and maximum alloy phase
47 - How soon after a moisture contamination does a zinc containing amalgam alloy start expanding________________?
47 - How soon after a moisture contamination does a zinc containing amalgam alloy start expanding________________?
3-5 days
48 - If a child's teeth do not form, this would primarily effect the growth of the_____________?
48 - If a child's teeth do not form, this would primarily effect the growth of the_____________?
Alveolar bone
49 - In a high copper amalgam the phase, which is eliminated is_______________?
49 - In a high copper amalgam the phase, which is eliminated is_______________?
Gamma 2
50 - In amalgam alloy which acts as oxygen scavenger_____________?
50 - In amalgam alloy which acts as oxygen scavenger_____________?
Zn
51 - In non zinc containing dental amalgam alloy the percentage of zinc present is______________?
51 - In non zinc containing dental amalgam alloy the percentage of zinc present is______________?
Less than 0.01%
52 - In spherical alloys as compared to lathe cut____________?
52 - In spherical alloys as compared to lathe cut____________?
Less condensing force is required
53 - Increase in the residual mercury in silver amalgam filling can_____________?
53 - Increase in the residual mercury in silver amalgam filling can_____________?
Cause fracture of the filling
54 - Main function of salivary duct is_______________?
54 - Main function of salivary duct is_______________?
To convey the saliva secreted by the terminal secretory units to oral cavity
55 - Mandible develops by______________?
55 - Mandible develops by______________?
Both of the above
56 - Mature bone is otherwise called as______________?
56 - Mature bone is otherwise called as______________?
Lamellar bone
57 - Maxillary sinus is described as a four sided pyramid containing base, apex, roof and floor. The apex of maxillary sinus extends________________?
57 - Maxillary sinus is described as a four sided pyramid containing base, apex, roof and floor. The apex of maxillary sinus extends________________?
Laterally into zygomatics process of maxilla
58 - Mercury intoxication in dental office mainly results from____________?
58 - Mercury intoxication in dental office mainly results from____________?
Inhalation of mercury vapours
59 - Mercury is toxic because it_____________?
59 - Mercury is toxic because it_____________?
Binds to sulfhydryl groups
60 - Mercury rich condition in a slow setting amalgam alloy system in a resoration in______________?
60 - Mercury rich condition in a slow setting amalgam alloy system in a resoration in______________?
All of the above
61 - Moisture contamination of amalgam can lead to_____________?
61 - Moisture contamination of amalgam can lead to_____________?
Delayed expansion
62 - Mucin in mucous cells usually demonstrated by______________?
62 - Mucin in mucous cells usually demonstrated by______________?
Mucicarmine stain
63 - Myoepithelial cells are present in________________?
63 - Myoepithelial cells are present in________________?
Intercalated & terminal duct
64 - Normal interincisal distance is____________________?
64 - Normal interincisal distance is____________________?
48 mm
65 - Of the total amount of saliva secreted by all the salivary glands, about 60% is secreted by the_____________?
65 - Of the total amount of saliva secreted by all the salivary glands, about 60% is secreted by the_____________?
Submandibular glands
66 - Once triturated, the Dental amalgam should be condensed with in_____________?
66 - Once triturated, the Dental amalgam should be condensed with in_____________?
3 minutes
67 - Organ of chievity is seen near the______________?
67 - Organ of chievity is seen near the______________?
Medial surface of the mandible
68 - Outstanding clinical performance of dental amalgam restoration is related to its____________?
68 - Outstanding clinical performance of dental amalgam restoration is related to its____________?
Compressive strength
69 - Over-trituration of silver alloy and mercury_______________?
69 - Over-trituration of silver alloy and mercury_______________?
Increases the strength of lathe cut alloy but reduces the strength of spherical alloy amalgam
70 - Percentage of tin in low copper alloy is______________?
70 - Percentage of tin in low copper alloy is______________?
26-28%
71 - Pure mucous glands are_____________?
71 - Pure mucous glands are_____________?
Glosso palatine & palatine glands
72 - Reversal lines which may be seen on the cribriform plate (alveolar bone proper) of the alveolar process indicate the cessation of____________?
72 - Reversal lines which may be seen on the cribriform plate (alveolar bone proper) of the alveolar process indicate the cessation of____________?
Osteoclastic activity
73 - Role of meckel's cartilage in development of mandible__________________?
73 - Role of meckel's cartilage in development of mandible__________________?
It does not have any role
74 - Saliva is secreted by____________?
74 - Saliva is secreted by____________?
Major & minor salivary glands
75 - Second arch derivatives are all except_________________?
75 - Second arch derivatives are all except_________________?
Malleus and incus
76 - Serous demilunes are seen in______________?
76 - Serous demilunes are seen in______________?
Salivary glands
77 - Setting time of Amalgam is best controlled by _______________?
77 - Setting time of Amalgam is best controlled by _______________?
Trituration time
78 - Sublingual gland is a_____________?
78 - Sublingual gland is a_____________?
Mixed gland
79 - The ADA specification No 1 for composition of amalgam alloy recommends______________?
79 - The ADA specification No 1 for composition of amalgam alloy recommends______________?
65% silver, 29% tin and 5-6% copper
80 - The articular cartilage is characterized by all of the following features except_____________?
80 - The articular cartilage is characterized by all of the following features except_____________?
It has a rich nerve supply
81 - The condyle of mandible is composed of____________________?
81 - The condyle of mandible is composed of____________________?
Cancellous bone covered by thin layer of compact bone
82 - The content of saliva include all except____________?
82 - The content of saliva include all except____________?
Lipase
83 - The dental amalgam is most resistant to________________?
83 - The dental amalgam is most resistant to________________?
Compressive stress
84 - The duct(s) of gland(s) opening into the floor of the mouth is (are)_______________?
84 - The duct(s) of gland(s) opening into the floor of the mouth is (are)_______________?
Submandibular and sublingual
85 - The effect of trituration on strength in an amalgam restoration depends on______________?
85 - The effect of trituration on strength in an amalgam restoration depends on______________?
All of the above
86 - The function of myoepithelial cells may be______________?
86 - The function of myoepithelial cells may be______________?
All of the above
87 - The glands of Blandin and Nuhn are_____________?
87 - The glands of Blandin and Nuhn are_____________?
The anterior lingual glands located near the apex of tongue
88 - The higher the Hg alloy ratio in dental amalgam________________?
88 - The higher the Hg alloy ratio in dental amalgam________________?
More matrix matrial formed
89 - The highest mercury concentration in amalgam filling is found_____________?
89 - The highest mercury concentration in amalgam filling is found_____________?
At the margin of the restoration
90 - The intimal B cells of synovical memrbane of temporomandibular joint are_______________?
90 - The intimal B cells of synovical memrbane of temporomandibular joint are_______________?
Fibroblast like
91 - The largest component of amalgam alloy is_____________?
91 - The largest component of amalgam alloy is_____________?
Silver
92 - The marrow found in the mandible is____________?
92 - The marrow found in the mandible is____________?
A combination of fatty and fibrous marrow
93 - The maxillary sinus______________?
93 - The maxillary sinus______________?
Has the 1st molar projecting into its floor
94 - The muscle which is commonly involved in myofacial pain dysfunction syndrome______________?
94 - The muscle which is commonly involved in myofacial pain dysfunction syndrome______________?
Lateral ptergoid
95 - The neutralization of saliva is due to______________?
95 - The neutralization of saliva is due to______________?
Bicarbonates
96 - The normal pH of the saliva is about_____________?
96 - The normal pH of the saliva is about_____________?
7.5
97 - The percentage of copper in high copper alloy is______________?
97 - The percentage of copper in high copper alloy is______________?
13-30%
98 - The process of recesses formation in maxillary sinus is most frequently seen with________________?
98 - The process of recesses formation in maxillary sinus is most frequently seen with________________?
Alveolar process
99 - The solid solution of silver and mercury is called_______________?
99 - The solid solution of silver and mercury is called_______________?
y1
100 - The tarnished layer of silver amalgam consists of________________?
100 - The tarnished layer of silver amalgam consists of________________?
Sulphides of silver
101 - The term trituration means____________?
101 - The term trituration means____________?
Mixing of amalgam alloy and mercury
102 - The threshold limit value of mercury exposures is_______________?
102 - The threshold limit value of mercury exposures is_______________?
0.05 mg / m3
103 - The tooth present close to maxillary sinus is_________________?
103 - The tooth present close to maxillary sinus is_________________?
1st molar
104 - The type of bone present in the labial area of anterior teeth is_________________?
104 - The type of bone present in the labial area of anterior teeth is_________________?
Cortical
105 - The type of epithelium lining maxillary sinus is_______________?
105 - The type of epithelium lining maxillary sinus is_______________?
Pseudo stratified columnar and cilliated
106 - Total volume of saliva secreted by submandibular gland daily is______________?
106 - Total volume of saliva secreted by submandibular gland daily is______________?
450 ml
107 - True about myoepithelial cell______________?
107 - True about myoepithelial cell______________?
All of the above
108 - Vonebners gland are_______________?
108 - Vonebners gland are_______________?
Posterior lingual serous glands
109 - Well premeasured capsules of amalgam can release mercury vapour during_______________?
109 - Well premeasured capsules of amalgam can release mercury vapour during_______________?
Condensation
110 - Wharton's duct drains the_______________?
110 - Wharton's duct drains the_______________?
Submandibular gland
111 - What fraction of inhaled mercury vapors retained in the body ?
111 - What fraction of inhaled mercury vapors retained in the body ?
65-85%
112 - What is common in amalgam and ceramics ?
112 - What is common in amalgam and ceramics ?
More compressive strength and tensile strength
113 - What is the most frequently used restorative material ?
113 - What is the most frequently used restorative material ?
Amalgam
114 - What is the recommended for condensation of dental amalgam ?
114 - What is the recommended for condensation of dental amalgam ?
3 pounds
115 - What is the working time of amalgam?
115 - What is the working time of amalgam?
Three to four minutes
116 - When osteoblast lay new bone from outside to inside in a osteon, the active formation area is called________________?
116 - When osteoblast lay new bone from outside to inside in a osteon, the active formation area is called________________?
Filling cone
117 - Which is not true about high copper amalgam alloys______________?
117 - Which is not true about high copper amalgam alloys______________?
Low tensile and compressive strength
118 - Which is true regarding lathe cut silver alloy_______________?
118 - Which is true regarding lathe cut silver alloy_______________?
Achieves lowest compressive strength at 1 hr.
119 - Which of the following are characteristic feature of high copper amalgam alloy ?
119 - Which of the following are characteristic feature of high copper amalgam alloy ?
Less marginal
120 - Which of the following constituents of amalgam alloy decreases expansion____________?
120 - Which of the following constituents of amalgam alloy decreases expansion____________?
Tin
121 - Which of the following does not occur in High Copper Amalgam ?
121 - Which of the following does not occur in High Copper Amalgam ?
Penetrating Corrosion
122 - Which of the following enzymes are involved in bone formation________________?
122 - Which of the following enzymes are involved in bone formation________________?
Alkaline phosphatase and phosphorylase
123 - Which of the following is correct about serous glands_____________?
123 - Which of the following is correct about serous glands_____________?
All of the above
124 - Which of the following is not present in saliva________________?
124 - Which of the following is not present in saliva________________?
Trypsin
125 - Which of the following phases of dental amalgam has minimum strength____________?
125 - Which of the following phases of dental amalgam has minimum strength____________?
Gamma 2
126 - Which of the following silver amalgam alloy have the maximum strength________________?
126 - Which of the following silver amalgam alloy have the maximum strength________________?
Single composition
127 - Which of the following statement is true regarding lathe cut low Copper silver alloy ?
127 - Which of the following statement is true regarding lathe cut low Copper silver alloy ?
Has tensile strength both at 15 minutes and 7 days is comparable to high copper, unicompositional alloys
128 - Which of the following statements about high copper silver alloy compared to conventional alloy is not true ?
128 - Which of the following statements about high copper silver alloy compared to conventional alloy is not true ?
It has poor tarnish and corrosion resistance
129 - Which one of the following is not an objective of trituration ?
129 - Which one of the following is not an objective of trituration ?
Keep the amount of gamma-1 or gamma-2 matrix crystals to maximum
130 - Which phase provides maximum strength in hardened mercury/silver alloy ?
130 - Which phase provides maximum strength in hardened mercury/silver alloy ?
Silver / Tin phase
Pages
No comments:
Post a Comment
Your Valued Comments Help us to improve our site. Thanks