TCDHA Rad Chap 1-8, 17, 19 Exam Questions
// // // // // // //
With Correct Answers
// // //
radiolucent //- //correct //answer(s) //✔✔ //appears //black //or //dark //on //a //radiograph
insufficient //density
tissues //are //soft //or //thin
ex. //air //spaces, //soft //tissue, //dental //pulp, //PDL //space
radiopaque //- //correct //answer(s) //✔✔ //appears //white //or //light //on //a //radiograph
dense
tissues //are //hard //or //thick
ex. //enamel, //dentin, //bone
density //- /
/correct /
/answer(s) //✔✔ //refers //to //the //overall //blackness //or //darkness //on //a //dental //radiograph
what /
/happens /
/to //a //film //if //the //density //is //too //high //- //correct //answer(s) //✔✔ //it //will //appear //dark
,what /
/will /
/influence /
/the /
/density /
/of //
a/
/radiograph //- /
/correct /
/answer(s) /
/✔✔ //an //increase //or //decrease //in //mA, //kVp, //exposure //time, //and //subject //thickness
increased //mA //in //density //= //- //correct //answer(s) //✔✔ //high //density
decreased //mA //in //density //= //- //correct //answer(s) //✔✔ //low //density
increased //kV //in //density //= //- //correct //answer(s) //✔✔ //high //density
decreased //kV //in //density //= //- //correct //answer(s) //✔✔ //low //density
increased //kV //in //contrast //= //- //correct //answer(s) //✔✔ //low //contrast
decreased //kV //in //contrast //= //- //correct //answer(s) //✔✔ //high //contrast
if /
/mA /
/is //increased, //the //image //will //appear //- //correct //answer(s) //✔✔ //it //will //appear //radiopaque
,If /
/kVp /
/is //decreased, //the //image //will //appear //- //correct //answer(s) //✔✔ //it //will //appear //radiolucent
if /
/exposure /
/time /
/decreases, /
/the /
/film /
/density //.......... /
/resulting //in //a //........... //image //- //correct //answer(s) //✔✔ //decreases, //radiolucent
if //client //has //an //increase //amount //of //soft //tissue //or //dense //bone, //fewer //x-
rays /
/reach /
/the /
/film; /
/therefore, /
/the /
/radiograph //will //have //less //density //and //will //appear //- //correct //answer(s) //✔✔ //radiolucent
contrast //- //correct //answer(s) //✔✔ //refers //to //the //difference //in //degrees //of //density/blackness
//on //a //radiograph
difference /
/in //the //amount //of //light //transmitter //through //adjacent //areas //on //a //dental //radiograph
high /
/contrast //- /
/correct //answer(s) //✔✔ //a //dental //image //that //has //very //dark //areas //and //very //light //areas
, low /
/contrast //- /
/correct /
/answer(s) /
/✔✔ //
a/
/dental /
/image /
/that /
/does //not //have //very //dark //and //very //light //areas //but //instead //has //many //shades //of //gray
short-scale //of //contrast //- //correct //answer(s) //✔✔ //black //and //white
low //kVp //= //short-scale //contrast //= //high //contrast
long-scale //contrast //- //correct //answer(s) //✔✔ //many //shades //of //gray
high //kVp //= //long-scale //contrast //= //low //contrast
film //contrast //- //correct //answer(s) //✔✔ //characteristics //of //a //film //that //influence //contrast
ex. //film //processing //and //quality //of //the //firm
subject /
/contrast //- //correct //answer(s) //✔✔ //characteristics //of //the //subject //that //influence //contrast //
ex. //thickness, //density //of //subject
can //be //altered //by //changing //the //kVp
// // // // // // //
With Correct Answers
// // //
radiolucent //- //correct //answer(s) //✔✔ //appears //black //or //dark //on //a //radiograph
insufficient //density
tissues //are //soft //or //thin
ex. //air //spaces, //soft //tissue, //dental //pulp, //PDL //space
radiopaque //- //correct //answer(s) //✔✔ //appears //white //or //light //on //a //radiograph
dense
tissues //are //hard //or //thick
ex. //enamel, //dentin, //bone
density //- /
/correct /
/answer(s) //✔✔ //refers //to //the //overall //blackness //or //darkness //on //a //dental //radiograph
what /
/happens /
/to //a //film //if //the //density //is //too //high //- //correct //answer(s) //✔✔ //it //will //appear //dark
,what /
/will /
/influence /
/the /
/density /
/of //
a/
/radiograph //- /
/correct /
/answer(s) /
/✔✔ //an //increase //or //decrease //in //mA, //kVp, //exposure //time, //and //subject //thickness
increased //mA //in //density //= //- //correct //answer(s) //✔✔ //high //density
decreased //mA //in //density //= //- //correct //answer(s) //✔✔ //low //density
increased //kV //in //density //= //- //correct //answer(s) //✔✔ //high //density
decreased //kV //in //density //= //- //correct //answer(s) //✔✔ //low //density
increased //kV //in //contrast //= //- //correct //answer(s) //✔✔ //low //contrast
decreased //kV //in //contrast //= //- //correct //answer(s) //✔✔ //high //contrast
if /
/mA /
/is //increased, //the //image //will //appear //- //correct //answer(s) //✔✔ //it //will //appear //radiopaque
,If /
/kVp /
/is //decreased, //the //image //will //appear //- //correct //answer(s) //✔✔ //it //will //appear //radiolucent
if /
/exposure /
/time /
/decreases, /
/the /
/film /
/density //.......... /
/resulting //in //a //........... //image //- //correct //answer(s) //✔✔ //decreases, //radiolucent
if //client //has //an //increase //amount //of //soft //tissue //or //dense //bone, //fewer //x-
rays /
/reach /
/the /
/film; /
/therefore, /
/the /
/radiograph //will //have //less //density //and //will //appear //- //correct //answer(s) //✔✔ //radiolucent
contrast //- //correct //answer(s) //✔✔ //refers //to //the //difference //in //degrees //of //density/blackness
//on //a //radiograph
difference /
/in //the //amount //of //light //transmitter //through //adjacent //areas //on //a //dental //radiograph
high /
/contrast //- /
/correct //answer(s) //✔✔ //a //dental //image //that //has //very //dark //areas //and //very //light //areas
, low /
/contrast //- /
/correct /
/answer(s) /
/✔✔ //
a/
/dental /
/image /
/that /
/does //not //have //very //dark //and //very //light //areas //but //instead //has //many //shades //of //gray
short-scale //of //contrast //- //correct //answer(s) //✔✔ //black //and //white
low //kVp //= //short-scale //contrast //= //high //contrast
long-scale //contrast //- //correct //answer(s) //✔✔ //many //shades //of //gray
high //kVp //= //long-scale //contrast //= //low //contrast
film //contrast //- //correct //answer(s) //✔✔ //characteristics //of //a //film //that //influence //contrast
ex. //film //processing //and //quality //of //the //firm
subject /
/contrast //- //correct //answer(s) //✔✔ //characteristics //of //the //subject //that //influence //contrast //
ex. //thickness, //density //of //subject
can //be //altered //by //changing //the //kVp
