Comprehensive Exam CDT Questions With Correct Answers 100% Solved
Comprehensive Exam CDT Questions With Correct Answers 100% Solved 1.- What are wetting agents used on wax patterns for A- Allow patterns to ease the flow of metal B- clean the wax pattern for easier divesting C- helps surface tension thus decreasing nodules on metal castings D- can help in using less water powder ratio for investments - answerC 2.- A depression cut into the patient's abutment tooth to prepare it for a partial framework is called A-groove B- connector C- finish line D- rest prep - answerD 3.·Cusp to fossa occlusion is advantageous over cusp to embrasure occlusion because A·it causes a " tight" effect B- provides less balancing interference C- it provides more balanced distribution of force D- is more natural in natural dentition - answerB 4.- The bilateral curve between buccal and lingual cusps is called A- curve of Spee B- compensating curve C- curve of Wilson D- Monson curve - answerC 5.- The chroma of a color refers to A- intensity B- amount of gray C- amount of orange D- basic color - answerA 6.- When torch soldering, which part of the flame should be used A- mixing B- Reducing C- Combustion D- oxidizing - answerB 7.- The part of the tooth that extends above the gingiva is called A- cingulum B- cervical C- Crown D- embrasure - answerC 8.- A disadvantage of agar type impression materials is that they must A- should be poured immediately B- are not too accurate C- they give off bad odors D·hard materials to manage - answerA 9.- What is a muscle of facial expression A- masseter B- orbicularis oris C- temporalis D- mylohoid - answerB 10.- The most simple articulator,that has no movement other than basic opening and closing is A-hinge B- fixed guide C- semi adjustable D- fully adjustable - answerA 11.- Materials that soften under heat and become solid when cold but do not change chemically are called A- thermocure B- thermoset C- thennogel D- thermoplastic - answer 12.- What clasp emerges from an occlusal embrasure area and engages the undercut A- ball clasp B- arrowhead clasp C- Adams clasp D- all of the above - answer 13.- What happens when gypsum investment is allowed to set under water A- increases its expansion B- decreases its expansion C- uneven expansion D- there is no expansion - answer 14.- An advantage of using custom impression trays is A- flexibility B- rigidity C- uniform thickness of impression material D- it customizes the impression - answer 15.- A crown sprue and button weighed 7dwt 9gr. After removing crown the remaining button and sprue wheighed 5dwt llgr What does the crown weigh A- 2 dwt. 22 gr B- 2 dwt. 18gr C- dwt. 22gr D- 1dwt. 18gr - answer 16.- What combination of gases is most desirable for melting ceramic alloys A- oxygen and air B- natural gas (or propane) and oxygen C- natural gas (or propane) and air D- acetylene and oxygen - answer 17.- An imaginary line drawn through the abutment teeth,around which a partial would tend to rotate is called A- survey line B- fulcrum line C- sagittalplane D- transverse line - answer 18.- The basic face forms include ovoid,square,and
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