1.
What area does an orthodontist specialized in?
Correct Answer
B. Your Bite And Smile
Explanation
An orthodontist specializes in the alignment and positioning of teeth and jaws, specifically focusing on correcting bite issues and improving the appearance of smiles. They use braces, retainers, and other appliances to straighten teeth and correct any misalignments or irregularities in the jaw. This helps to improve the functionality of the bite and enhance the overall aesthetic of the smile.
2.
What do you bite into to leave your bite mark to show how your teeth are aligned?
Correct Answer
D. Wax
Explanation
Wax is the correct answer because it is a malleable material that can be bitten into and leave a clear impression of the teeth. It is commonly used in dental practices to create molds of teeth for various purposes, such as creating dental appliances or studying the alignment of the teeth. Plastic, rubber, and steel are not typically used for this purpose as they are not as easily moldable and may not accurately capture the alignment of the teeth.
3.
What is a crown?
Correct Answer
A. An Artificial Tooth
Explanation
A crown is a dental prosthesis that is used to cover or cap a damaged or decayed tooth. It is placed over the existing tooth to restore its shape, size, strength, and appearance. Crowns are typically made from materials such as porcelain, metal, or a combination of both. They are custom-made to match the color and shape of the natural teeth, providing a natural-looking and functional replacement for a damaged tooth.
4.
What is the more common term for odontalgia?
Correct Answer
B. Toothache
Explanation
The more common term for odontalgia is toothache. Odontalgia refers to the pain or discomfort in the tooth or teeth, which is commonly known as toothache. Dentures are artificial teeth, plaque is a sticky film that forms on teeth, and gingivitis is the inflammation of the gums. However, none of these terms specifically refer to the pain associated with tooth problems, making toothache the correct answer.
5.
What is cariology?
Correct Answer
D. The study of tooth decay
Explanation
Cariology is the study of tooth decay. This field of dentistry focuses on the causes, prevention, diagnosis, and treatment of dental caries (tooth decay). Cariologists study the various factors that contribute to tooth decay, such as bacteria, diet, oral hygiene practices, and genetics. They also investigate different treatment methods and preventive measures to maintain oral health and prevent tooth decay.
6.
What is the titanium device that is used that looks like tooth?
Correct Answer
C. Dental implant
Explanation
A dental implant is a titanium device that is used to replace a missing tooth. It is designed to look and function like a natural tooth, providing a permanent solution for individuals with tooth loss. The titanium implant is surgically placed into the jawbone, acting as a replacement root for the artificial tooth. It is then topped with a dental crown that resembles a natural tooth, allowing for a seamless and aesthetically pleasing restoration.
7.
Enamel, cementum, pulp and what are the major components of a tooth?
Correct Answer
D. Dentin
Explanation
Dentin is one of the major components of a tooth, along with enamel, cementum, and pulp. Dentin is a hard, calcified tissue that forms the bulk of the tooth structure. It is located beneath the enamel and cementum and surrounds the pulp. Dentin provides support and strength to the tooth, protecting the more delicate pulp tissue. It is composed of mineralized connective tissue and contains microscopic tubules that house the tooth's nerve endings.
8.
How many types of dentin are there?
Correct Answer
D. Three
Explanation
There are three types of dentin. Dentin is a hard, calcified tissue that makes up the majority of a tooth. The three types of dentin are primary dentin, secondary dentin, and tertiary dentin. Primary dentin forms during tooth development, secondary dentin forms after the tooth has erupted, and tertiary dentin forms in response to injury or decay. Each type of dentin serves a different function in protecting and supporting the tooth structure.
9.
Swollen gums, gums that are tender and bleeding are signs of what disease?
Correct Answer
B. Gingivitis
Explanation
Gingivitis is a gum disease characterized by swollen, tender, and bleeding gums. Plaque, a sticky film of bacteria, is the main cause of gingivitis. When plaque is not removed through proper oral hygiene, it can harden into tartar, which further irritates the gums and worsens gingivitis. Bruxism, on the other hand, refers to teeth grinding and is not directly related to swollen gums. Therefore, the correct answer is gingivitis.
10.
Listerine and Scope are types of what dental product?
Correct Answer
A. Mouthwash
Explanation
Listerine and Scope are well-known brands that are primarily associated with mouthwash. They are not toothbrushes, floss, or toothpaste. Therefore, the correct answer is mouthwash.
11.
In what source can fluoride be found?
Correct Answer
B. Water
Explanation
Fluoride can be found in water.
12.
What is xerostomia?
Correct Answer
D. Dry mouth
Explanation
Xerostomia refers to the condition of having a dry mouth. It occurs when there is a decrease in saliva production, leading to discomfort and difficulty in speaking, swallowing, and tasting. This condition can be caused by various factors such as certain medications, medical treatments, dehydration, and certain medical conditions. Gum decay, tooth decay, and grinding of the teeth are not the same as xerostomia, although dry mouth can contribute to these issues. Therefore, the correct answer is dry mouth.
13.
How often should you replace your toothbrush?
Correct Answer
B. Every 3-4 months
Explanation
To maintain good oral hygiene, it is recommended to replace your toothbrush every 3-4 months. Over time, the bristles of a toothbrush become frayed and worn, making it less effective in cleaning teeth and gums. Regularly replacing your toothbrush ensures that you are using a tool that can effectively remove plaque and bacteria from your mouth.
14.
Plaque is a sticky film of what that builds up on your teeth and gums?
Correct Answer
D. Bacteria
Explanation
Following a meal or snack, the bacteria in plaque release acids that attack tooth enamel. Repeated attacks can cause the enamel to weaken, eventually causing tooth decay. FYI - Microgenia is small or underdeveloped chin.
15.
Drinking bottled water is always better for your teeth because it filters out the impurities in tap water.
Correct Answer
B. False
Explanation
Drinking bottled water exclusively can be a problem. Check to see if it's fluoridated. If it doesn't say, call the company.
16.
Water picks help to remove plaque from your teeth.
Correct Answer
B. False
Explanation
Be careful when using water picks. They can drive bacteria back up into the gums, which can lead to it lodging in other parts of the body, such as the heart.
17.
How often does the American Dental Association recommend that you floss your teeth?
Correct Answer
C. Once a day
Explanation
Clean between teeth daily with floss or an interdental cleaner. Decay–causing bacteria still linger between teeth where toothbrush bristles can’t reach. This helps remove plaque and food particles from between the teeth and under the gum line.
18.
Cold sores are contagious.
Correct Answer
A. True
Explanation
Cold sores caused by herpes virus type 1 are very contagious. The initial infection (primary herpes), which often occurs before adulthood, may be confused with a cold or flu and can cause painful lesions to erupt throughout the mouth. Cold sore blisters usually heal in a week by themselves. Over-the-counter topical anesthetics can provide some relief. Prescription antiviral drugs may reduce these kinds of viral infections.
19.
Oral cancer often starts as a tiny, unnoticed white or red spot or sore anywhere in the mouth. Other signs of oral cancer include all of the following, but what?
Correct Answer
A. A significant change in the taste of food
Explanation
Other signs include pain, tenderness, or numbness anywhere in the mouth or on the lips and difficulty chewing, swallowing, speaking or moving the jaw or tongue.
20.
Approximately 30,000 Americans have oral cancer. Of these, what percentage will die because of the disease?
Correct Answer
B. 25%
Explanation
The best way to prevent oral cancer is to avoid tobacco and alcohol use. Regular dental check-ups, including an examination of the entire mouth, are essential in the early detection of cancerous and pre-cancerous conditions.
21.
Which of the following is a normal pattern for eruption of primary teeth?
Correct Answer
A. Maxillary first molars erupt before maxillary canines
Explanation
Primary teeth eruption typically follows a specific pattern. The maxillary first molars usually erupt before the maxillary canines. This is a normal sequence of eruption in primary teeth development.
22.
The dental degree DDS means...
Correct Answer
D. Doctor of Dental Surgery
Explanation
The dental degree DDS stands for Doctor of Dental Surgery. This degree is awarded to dentists who have completed a program of study in dental medicine and have acquired the necessary skills and knowledge to practice dentistry. The term "surgery" in the degree title reflects the fact that dentists are trained to perform surgical procedures related to oral health, such as tooth extractions and dental implants. The DDS degree signifies that the individual has undergone comprehensive training in all aspects of dental care and is qualified to diagnose and treat various oral health conditions.
23.
In the Universal Numbering System, the permanent teeth are numbered 1 to 32.
Correct Answer
A. True
Explanation
The statement is true because in the Universal Numbering System, the permanent teeth are indeed numbered from 1 to 32. This system is commonly used by dentists and dental professionals to refer to specific teeth in a consistent and standardized manner. Each tooth is assigned a unique number, with the upper right third molar being numbered 1 and the lower left third molar being numbered 32. This numbering system allows for easy communication and identification of teeth during dental procedures and treatment planning.
24.
According to the Universal Numbering System, tooth #7 and #10 are maxillary lateral incisors.
Correct Answer
A. True
Explanation
According to the Universal Numbering System, tooth #7 and #10 are indeed maxillary lateral incisors. The Universal Numbering System is a dental notation system used to identify and label teeth in a consistent and standardized manner. In this system, the maxillary lateral incisors are assigned the numbers 7 and 10. Therefore, the statement is true.
25.
The area between adjacent tooth surfaces is called the inter-proximal space.
Correct Answer
A. True
Explanation
The area between adjacent tooth surfaces is indeed called the inter-proximal space. This space is located between two teeth and is an important area for dental hygiene as it can easily trap food particles and bacteria, leading to tooth decay and gum disease if not properly cleaned. Regular flossing is recommended to clean the inter-proximal space and maintain oral health.
26.
The anterior teeth are toward the front and include the incisors and molars.
Correct Answer
B. False
Explanation
The anterior teeth include the incisors and canines.
27.
The surface of the tooth that is closest to the tongue is the ...
Correct Answer
B. Lingual surface
Explanation
The lingual surface refers to the surface of the tooth that is closest to the tongue. It is the inner surface of the tooth that faces towards the oral cavity. This surface is important for functions such as speech, taste, and mastication. It is also the surface that is examined and cleaned during dental check-ups and oral hygiene practices.
28.
Critical instruments do not have a high risk of disease transmission and do not need to be sterilized.
Correct Answer
B. False
Explanation
Critical instruments have a high risk of disease transmission and should be heat sterilized.
29.
What instruments are used in basic setup?
Correct Answer
D. All of the above
Explanation
The correct answer is "all of the above" because in a basic setup for dental procedures, all three instruments mentioned - mouth mirror, explorer, and cotton pliers - are commonly used. The mouth mirror is used to provide visibility and reflection of the oral cavity, the explorer is used to detect any dental caries or abnormalities, and cotton pliers are used to handle and manipulate materials such as cotton rolls or gauze. Therefore, all of these instruments are essential in a basic dental setup.
30.
Which is an example of a hand cutting instrument?
Correct Answer
A. Excavators
Explanation
Excavators are examples of hand cutting instruments used in dentistry. They are specifically designed to remove decayed tooth structure and prepare the tooth for restorative procedures. Excavators have sharp, curved ends that allow for precise cutting and removal of the affected tooth material. They are commonly used in dental clinics and are an essential tool in the field of dentistry.
31.
A palm-thumb grasp is when an instrument is held ...
Correct Answer
A. In the palm using the thumb to stabilize the instrument
Explanation
A palm-thumb grasp refers to holding an instrument in the palm of the hand while using the thumb to stabilize it. This grip allows for better control and precision while using the instrument. It is different from holding a pen, where the fingers are used to grip the instrument instead of the thumb. Holding the instrument in the palm provides a more stable base for manipulating it.
32.
The patient position where the patients head is lower than their heart is the ...
Correct Answer
A. Subsupine position
Explanation
The subsupine position refers to a patient position where the patient's head is lower than their heart. In this position, the patient lies on their back with their head tilted downwards, which helps to promote blood flow to the head and upper body. This position is commonly used during certain medical procedures or when a patient is experiencing symptoms such as dizziness or low blood pressure. The upright position refers to a patient sitting or standing straight, while the supine position refers to a patient lying flat on their back with their face and torso facing upwards.
33.
The system used in dentistry to remove water and other debris is called the oral evacuation system.
Correct Answer
A. True
Explanation
The statement is true because the system used in dentistry to remove water and other debris is indeed called the oral evacuation system. This system consists of a suction device that helps to remove saliva, water, and debris from the patient's mouth during dental procedures. It is an essential tool in maintaining a clean and dry working environment for the dentist, providing better visibility and preventing contamination.
34.
Which of the following terms matches the following definition? The teeth on either side of a missing tooth
Correct Answer
A. Abutment
Explanation
An abutment refers to the teeth on either side of a missing tooth. It is used as a support for a dental prosthesis, such as a bridge or a denture. The abutment teeth provide stability and anchorage for the prosthesis, allowing it to function properly and remain in place.
35.
Which of the following is the most infectious bloodeborne pathogen likely to be encountered in the dental workplace.
Correct Answer
A. Hepatitis B
Explanation
Hepatitis B is the most infectious bloodborne pathogen likely to be encountered in the dental workplace. It is transmitted through contact with infected blood or bodily fluids, making dental professionals particularly susceptible due to the nature of their work. HIV is also a bloodborne pathogen, but it is less infectious than Hepatitis B. Tuberculosis is primarily transmitted through respiratory droplets and is not as commonly encountered in dental settings. Prion diseases, such as Creutzfeldt-Jakob disease, are not typically transmitted through blood or bodily fluids and are therefore less likely to be encountered in the dental workplace.
36.
What is the abbreviation for Buccal-occlusal?
Correct Answer
A. BO
Explanation
The abbreviation for Buccal-occlusal is BO.
37.
What is the abbreviation for Mesioincisal?
Correct Answer
A. MI
Explanation
The abbreviation for Mesioincisal is MI.
38.
Large amounts of salicylates (sprin) are MOST likely to affect a patient's
Correct Answer
B. Bleeding and clotting time
Explanation
Large amounts of salicylates (aspirin) can affect a patient's bleeding and clotting time. Salicylates are known to inhibit platelet aggregation and interfere with the production of thromboxane A2, which is important for blood clotting. This can lead to prolonged bleeding time and increased risk of bleeding. Therefore, it is likely that large amounts of salicylates would affect a patient's bleeding and clotting time.
39.
If an error has been made on a clinical record entry, which of the following should be done?
Correct Answer
C. Draw one line through the incorrect entry and initial and write the correct entry below
Explanation
When an error is made on a clinical record entry, the correct procedure is to draw one line through the incorrect entry, initial it, and then write the correct entry below. This method ensures that the incorrect entry is still visible, preventing any potential tampering or alteration of the record. By initialing the correction, it provides accountability for the change made. Writing the correct entry below allows for clear documentation of the accurate information.
40.
What is considered an "average" pulse range for an adult at rest
Correct Answer
B. 61-8- beats per minute
41.
When assisting during oral surgery the dental assistant should NEVER
Correct Answer
B. Blow air to clear the socket
Explanation
When assisting during oral surgery, the dental assistant should never blow air to clear the socket. Blowing air can disrupt the blood clot that forms in the socket after the tooth extraction, leading to a condition called dry socket. Dry socket can cause severe pain and delay the healing process. It is important for the dental assistant to follow proper protocols and avoid any actions that could potentially harm the patient's recovery.
42.
Which of the following is a characteristic of aggressive brushing
Correct Answer
A. Abrasion
Explanation
Aggressive brushing refers to brushing with excessive force and pressure, which can lead to the wearing away of the tooth's surface. This process is known as abrasion. Abrasion occurs when the tooth enamel is physically worn down by the friction caused by aggressive brushing. It can result in the formation of notches or grooves near the gum line and sensitivity in the affected teeth. Therefore, abrasion is a characteristic of aggressive brushing.
43.
When measuring blood pressure, the patient should be seated with the arm in which position
Correct Answer
B. Slightly flexed, with forearm supported at heard level
Explanation
When measuring blood pressure, it is recommended to have the patient seated with the arm slightly flexed and the forearm supported at heart level. This position helps to ensure accurate readings by minimizing the effect of gravity on blood flow. Keeping the arm at heart level helps to maintain consistent pressure in the arteries, while the slight flexion of the arm allows for proper positioning of the blood pressure cuff. This position also ensures that the muscles in the arm are relaxed, reducing any potential interference with the accuracy of the measurement.
44.
Control of saliva from the perotid duct can be accomplished by placing a cotton roll
Correct Answer
B. In the vestibule, opposite of the max second molar
Explanation
Placing a cotton roll in the vestibule, opposite of the max second molar can help in controlling saliva from the parotid duct. The vestibule is the space between the cheeks or lips and the teeth or gums, and in this case, it refers to the area opposite the maxillary (upper) second molar. By placing the cotton roll in this specific location, it can absorb saliva and prevent it from interfering with dental procedures or causing discomfort to the patient.
45.
For oral evacuation during a max anterior facial preparation, the evacuator tip is placed
Correct Answer
A. To the lingual of the tooth being prepared
Explanation
During a maxillary anterior facial preparation, the evacuator tip is placed to the lingual of the tooth being prepared. This positioning allows for effective removal of saliva, water, and debris from the oral cavity during the procedure. Placing the evacuator tip to the lingual side ensures that it does not interfere with the dentist's access to the facial surface of the tooth being prepared, allowing for better visibility and control during the procedure.
46.
Which of the following conditions may occur if excess cement is NOT removed from the cervical margin after cementation of a crown
Correct Answer
B. Inflamation of interdental papille
Explanation
If excess cement is not removed from the cervical margin after cementation of a crown, it can lead to inflammation of the interdental papilla. The interdental papilla is the gum tissue that fills the space between two teeth. Excess cement can get trapped in this area and cause irritation and inflammation. This can result in redness, swelling, and discomfort in the gum tissue. It is important to remove any excess cement to prevent this complication and maintain healthy gum tissue.
47.
In selecting an impression tray for a preliminary max. impression, the tray should extend posteriorly
Correct Answer
A. Behind the tuberosity
Explanation
The correct answer is "behind the tuberosity." When selecting an impression tray for a preliminary maxillary impression, it is important for the tray to extend posteriorly behind the tuberosity. The tuberosity is the bony prominence at the posterior end of the upper jaw, and extending the tray behind it ensures that the impression captures the entire maxillary arch accurately. This allows for a more precise fit of any prosthesis or restoration that may be required.
48.
Chairside assisting DURING the anesthesia injection usually incluse which of the following responsibilities
Correct Answer
B. Passing and receiving the syringe
Explanation
During the anesthesia injection, chairside assisting typically includes the responsibility of passing and receiving the syringe. This means that the assistant will assist the dentist by handing them the syringe when needed and taking it back from them after use. This task helps to ensure a smooth and efficient administration of anesthesia during dental procedures. The other responsibilities mentioned, such as applying topical anesthetic, injecting anesthetic, and administering prophylactic antibiotics, may also be part of the chairside assistant's role, but they are not specifically mentioned in the given question.
49.
Nitrous oxide analgesia is NOT usually recommended for patiants who
Correct Answer
A. Have nasal congestion
Explanation
Nitrous oxide analgesia is not usually recommended for patients who have nasal congestion because nitrous oxide is administered through a mask that covers the nose. If a patient has nasal congestion, the mask may not fit properly, leading to inadequate administration of the analgesia. Additionally, nasal congestion can make it difficult for the patient to breathe properly, which can be exacerbated by the use of nitrous oxide. Therefore, it is advisable to avoid using nitrous oxide analgesia in patients with nasal congestion.
50.
Which of the following statements is correct regarding the light curing of composite
Correct Answer
A. Curing for a slightly longer time is preferred to under curing
Explanation
Curing for a slightly longer time is preferred to under curing because under curing can result in insufficient polymerization of the composite material, leading to decreased strength and durability of the restoration. On the other hand, slightly longer curing time ensures complete polymerization, resulting in a stronger and more stable composite restoration.