SCDA Radiation Safety Exam| Brand New Exam Questions with 100% Correct Clear Verified Answers| All Graded A+|100% Guaranteed Success

SCDA Radiation Safety Exam| Brand New Exam Questions with 100% Correct Clear Verified Answers| All Graded A+|100% Guaranteed Success X-rays are also known as what? - AnswerRadiographs What are x-rays? - AnswerPhotographic images that can be seen on film/screen How are x-rays produced? - AnswerBy directing the x-ray beams, invisible straight lines traveling at a constant speed and made visible by processing the image What are x-rays used for? - AnswerHelp prevent, monitor, and diagnose potential oral health care issues in a patients mouth before they become a major problem X-rays are produced by what type of machine? - AnswerA machine whose source of energy is electricity How are teeth captured on x-rays? - AnswerX-rays pass through soft tissues and are absorbed by dense tissue. Teeth and bone are very dense so, they absorb x-rays while x-rays pass more easily through gums & cheeks Radiation can affect body tissues & cells that can carry what? - AnswerHereditary materials for future generations What is the most common type of radiograph in dentistry? - AnswerIntraoral x-rays What are some things x-rays for adults do? - Answer1. Detect areas of decay that can not be seen just looking in the mouth (especially decay between teeth) 2. Detect decay under fillings 3. Detect cracks or other damaging in fillings 4. Alert the dentist to possible bone loss from periodontal (gum) disease 5. Show problems in the root of a tooth, such as infection or death of the nerve 6. Help the dentist plan, prepare and place tooth implants, braces, dentures or other dental work 7. Detect other problems, such as cysts, cancer or changes caused by diseases of the body What are some things x-rays for children & teens do? - Answer1. Find decay, damage to fillings & monitor tooth growth and development 2. Determine if permanent teeth are developing & coming in properly 3. See if any teeth are impacted (unable to come through the gums) 4. Help the dentist plan, prepare & place braces Who established recommendations as to acceptable levels of exposure to ionizing radiation? - AnswerNational Committee on Radiation Protection (NCRP) What are the recommendations as to acceptable levels of exposure to ionizing radiation called? - AnswerMaximum permissible dose (MPD) What does the MPD (maximum permissible dose) represent? - AnswerGreatest amount of radiation exposure that is accepted as not producing significant harmful biological effects What is the annual occupational dose limit of radiation for adults? - AnswerTotal effective dose equivalent being equal to 5 rem (0.05Sv) What is the annual occupational dose limit of radiation for minors? - Answer10% of the annual occupational dose limit specified for adults What is radiation dose? - AnswerMeasure of how much energy is absorbed when something or someone is exposed to X-rays What are the 2 commonly used ways of talking about radiation dose in dental procedures? - Answer1. Dose estimated at the patients skin surface (correctly known as "entrance surface air kerma") 2. Effective dose What is effective dose? - AnswerDose estimated at the skin surface & is easier to measure and is used in national surveys of x-ray equipment How is radiation dose (dose) described? - AnswerUsing the quantity effective dose, expressed in millisievert (mSv) Dental radiology dose levels are usually a small fraction of what? - AnswerOne gray (milli gray : mGy or even micro gray) What is the effective dose for intraoral dental x-ray imaging procedures? - Answer1-8 uSv What is the effective dose for panoramic examinations? - Answer4-30 uSv What is the effective dose for cephalometric examinations? - Answer2-3 uSv What is the effective dose for CBCT procedures for small dento-alveolar volumes? - Answer34-652 uSv What is the effective dose for CBCT procedures for large "Cranio-facial" volumes? - Answer30-1079 uSv The total effective dose equivalent to individual members does not exceed what in one year? - Answer.01 rem (1 mSv) Every person is exposed to what type of radiation from their surroundings (earth, food, others & even our own body)? - AnswerNatural background radiation What type of radiation is natural background radiation? - AnswerGamma rays Natural background radiation exposure depends on what? - AnswerWhere someone lives How much natural background radiation can an individual be exposed to every year? - Answer1-3 mSv The fetal dose form a dental x-ray exam is estimated to be between what? - Answer0.3 uSv What is Sv a unit / measurement of? - AnswerTotal effective dose What is mSv a unit / measurement of? - AnswerRadiation dose What is uSv a unit / measurement of? - AnswerEffective dose List the following from smallest unit to largest unit : mSv, Sv, uSv - AnsweruSv, mSv, Sv Sv stands for what? - AnswerSeivert X-rays are also known as what? - AnswerRadiographs What are x-rays? - AnswerPhotographic images that can be seen on film/screen How are x-rays produced? - AnswerBy directing the x-ray beams, invisible straight lines traveling at a constant speed and made visible by processing the image What are x-rays used for? - AnswerHelp prevent, monitor, and diagnose potential oral health care issues in a patients mouth before they become a major problem X-rays are produced by what type of machine? - AnswerA machine whose source of energy is electricity How are teeth captured on x-rays? - AnswerX-rays pass through soft tissues and are absorbed by dense tissue. Teeth and bone are very dense so, they absorb x-rays while x-rays pass more easily through gums & cheeks Radiation can affect body tissues & cells that can carry what? - AnswerHereditary materials for future generations What is the most common type of radiograph in dentistry? - AnswerIntraoral x-rays What are some things x-rays for adults do? - Answer1. Detect areas of decay that can not be seen just looking in the mouth (especially decay between teeth) 2. Detect decay under fillings 3. Detect cracks or other damaging in fillings 4. Alert the dentist to possible bone loss from periodontal (gum) disease 5. Show problems in the root of a tooth, such as infection or death of the nerve 6. Help the dentist plan, prepare and place tooth implants, braces, dentures or other dental work 7. Detect other problems, such as cysts, cancer or changes caused by diseases of the body What are some things x-rays for children & teens do? - Answer1. Find decay, damage to fillings & monitor tooth growth and development 2. Determine if permanent teeth are developing & coming in properly 3. See if any teeth are impacted (unable to come through the gums) 4. Help the dentist plan, prepare & place braces Who established recommendations as to acceptable levels of exposure to ionizing radiation? - AnswerNational Committee on Radiation Protection (NCRP) What are the recommendations as to acceptable levels of exposure to ionizing radiation called? - AnswerMaximum permissible dose (MPD) What does the MPD (maximum permissible dose) represent? - AnswerGreatest amount of radiation exposure that is accepted as not producing significant harmful biological effects What is the annual occupational dose limit of radiation for adults? - AnswerTotal effective dose equivalent being equal to 5 rem (0.05Sv) What is the annual occupational dose limit of radiation for minors? - Answer10% of the annual occupational dose limit specified for adults What is radiation dose? - AnswerMeasure of how much energy is absorbed when something or someone is exposed to X-rays What are the 2 commonly used ways of talking about radiation dose in dental procedures? - Answer1. Dose estimated at the patients skin surface (correctly known as "entrance surface air kerma") 2. Effective dose What is effective dose? - AnswerDose estimated at the skin surface & is easier to measure and is used in national surveys of x-ray equipment How is radiation dose (dose) described? - AnswerUsing the quantity effective dose, expressed in millisievert (mSv) Dental radiology dose levels are usually a small fraction of what? - AnswerOne gray (milli gray : mGy or even micro gray) What is the effective dose for intraoral dental x-ray imaging procedures? - Answer1-8 uSv What is the effective dose for panoramic examinations? - Answer4-30 uSv What is the effective dose for cephalometric examinations? - Answer2-3 uSv What is the effective dose for CBCT procedures for small dento-alveolar volumes? - Answer34-652 uSv What is the effective dose for CBCT procedures for large "Cranio-facial" volumes? - Answer30-1079 uSv The total effective dose equivalent to individual members does not exceed what in one year? - Answer.01 rem (1 mSv) Every person is exposed to what type of radiation from their surroundings (earth, food, others & even our own body)? - AnswerNatural background radiation What type of radiation is natural background radiation? - AnswerGamma rays Natural background radiation exposure depends on what? - AnswerWhere someone lives How much natural background radiation can an individual be exposed to every year? - Answer1-3 mSv The fetal dose form a dental x-ray exam is estimated to be between what? - Answer0.3 uSv What is Sv a unit / measurement of? - AnswerTotal effective dose What is mSv a unit / measurement of? - AnswerRadiation dose What is uSv a unit / measurement of? - AnswerEffective dose List the following from smallest unit to largest unit : mSv, Sv, uSv - AnsweruSv, mSv, Sv Sv stands for what? - AnswerSeivert