ORAL PATHOLOGY FOR THE DENTAL
HYGIENIST 7TH EDITION IBSEN STUDY
GUIDE 2026 COMPLETE QUESTIONS AND
CORRECT ANSWERS VERIFIED
⩥ What is the destruction of ALL LIVING organisms, including
HIGHLY RESISTANT BACTERIAL SPORES. Answer: Sterilization
⩥ What are the three methods of sterilization?. Answer: autoclave, dry
heat, and chemical vapor
⩥ What setting should the steam autoclave be placed on? What are the
disadvantages of its use?. Answer: 250'F, 15-30 minutes; corrode non-
stainless steels and dull instruments
⩥ How must critical instruments be cleaned?. Answer: They must be
sterilized after each use
⩥ What classification of instrument PENETRATES soft oral tissue or
bone?
A. Noncritical
B. Semi-critical
C. Critical. Answer: Critical
,⩥ What classification of instrument comes into contact with SKIN?
A. Noncritical
B. Semi-critical
C. Critical. Answer: Noncritical
⩥ What classification of instrument does NOT penetrate soft oral tissue
or bone, but contacts ORAL MUCOSA or nonintact skin?
A. Noncritical
B. Semi-critical
C. Critical. Answer: Semi-critical
⩥ mouth mirrors and impression trays are examples of which
classification of instrument?
A. Noncritical
B. Semi-critical
C. Critical. Answer: Semi-critical
⩥ Periodontal probes and explorers are examples of which classification
of instrument?
A. Noncritical
B. Semi-critical
C. Critical. Answer: Critical
,⩥ BP cuffs, instrument trays, and light handles are examples of which
classification of instruments?
A. Noncritical
B. Semi-critical
C. Critical. Answer: noncritical
⩥ What type of INDICATOR refers to HEAT-SENSITIVE chemicals
that CHANGE COLOR when exposed to certain TEMPERATURES to
assess conditions during the sterilization process? EX: Autoclave tape on
sterilization pouches that turn BROWN when clean
A. Biologic indicators
B. Chemical indicators. Answer: Chemical indicators
⩥ What type of INDICATOR refers to SPORE TESTS for verification
of sterility and is the HIGHEST level of STERILITY ASSURANCE?
A. Biologic indicators
B. Chemical indicators. Answer: Biologic indicators
⩥ What has the CDC recommended that all dental units water systems
use as the standard?. Answer: Less than or equal to 500 CFU/mL of
heterotrophic water bacteria
, ⩥ Which part of the health history includes, discussing TOBACCO,
ALCOHOL, AND RECREATIONAL drug use?
A. Medical history
B. Pharmacological history
C. Social history. Answer: Social history
⩥ Which part of the health history includes medications, and adverse
effects, drug interactions?
A. Medical history
B. Pharmacological history
C. Social history. Answer: Pharmacological history
⩥ Which part of the health history is the REASON why the patient has
presented in the dental office?
A. Medical history
B. Pharmacological history
C. Social history
D. Chief complaint. Answer: Chief complaint
⩥ What is an underweight BMI?
What is a normal BMI?
What is an overweight BMI?
What is an obese BMI?. Answer: <18.5
HYGIENIST 7TH EDITION IBSEN STUDY
GUIDE 2026 COMPLETE QUESTIONS AND
CORRECT ANSWERS VERIFIED
⩥ What is the destruction of ALL LIVING organisms, including
HIGHLY RESISTANT BACTERIAL SPORES. Answer: Sterilization
⩥ What are the three methods of sterilization?. Answer: autoclave, dry
heat, and chemical vapor
⩥ What setting should the steam autoclave be placed on? What are the
disadvantages of its use?. Answer: 250'F, 15-30 minutes; corrode non-
stainless steels and dull instruments
⩥ How must critical instruments be cleaned?. Answer: They must be
sterilized after each use
⩥ What classification of instrument PENETRATES soft oral tissue or
bone?
A. Noncritical
B. Semi-critical
C. Critical. Answer: Critical
,⩥ What classification of instrument comes into contact with SKIN?
A. Noncritical
B. Semi-critical
C. Critical. Answer: Noncritical
⩥ What classification of instrument does NOT penetrate soft oral tissue
or bone, but contacts ORAL MUCOSA or nonintact skin?
A. Noncritical
B. Semi-critical
C. Critical. Answer: Semi-critical
⩥ mouth mirrors and impression trays are examples of which
classification of instrument?
A. Noncritical
B. Semi-critical
C. Critical. Answer: Semi-critical
⩥ Periodontal probes and explorers are examples of which classification
of instrument?
A. Noncritical
B. Semi-critical
C. Critical. Answer: Critical
,⩥ BP cuffs, instrument trays, and light handles are examples of which
classification of instruments?
A. Noncritical
B. Semi-critical
C. Critical. Answer: noncritical
⩥ What type of INDICATOR refers to HEAT-SENSITIVE chemicals
that CHANGE COLOR when exposed to certain TEMPERATURES to
assess conditions during the sterilization process? EX: Autoclave tape on
sterilization pouches that turn BROWN when clean
A. Biologic indicators
B. Chemical indicators. Answer: Chemical indicators
⩥ What type of INDICATOR refers to SPORE TESTS for verification
of sterility and is the HIGHEST level of STERILITY ASSURANCE?
A. Biologic indicators
B. Chemical indicators. Answer: Biologic indicators
⩥ What has the CDC recommended that all dental units water systems
use as the standard?. Answer: Less than or equal to 500 CFU/mL of
heterotrophic water bacteria
, ⩥ Which part of the health history includes, discussing TOBACCO,
ALCOHOL, AND RECREATIONAL drug use?
A. Medical history
B. Pharmacological history
C. Social history. Answer: Social history
⩥ Which part of the health history includes medications, and adverse
effects, drug interactions?
A. Medical history
B. Pharmacological history
C. Social history. Answer: Pharmacological history
⩥ Which part of the health history is the REASON why the patient has
presented in the dental office?
A. Medical history
B. Pharmacological history
C. Social history
D. Chief complaint. Answer: Chief complaint
⩥ What is an underweight BMI?
What is a normal BMI?
What is an overweight BMI?
What is an obese BMI?. Answer: <18.5
