Browse all practice questions for the Ohio Expanded Function Dental Assistant (EFDA) Board Practice Exam. Search by topic, open any question and review its full explanation, then test yourself in the practice quiz.

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  • Which of the following describes a responsibility of EFDAs related to patient comfort?
  • What is one of the main objectives of proper dental anatomy education for EFDAs?
  • Which condition is characterized by the loss of tooth structure due to gastric acid exposure?
  • What is the benefit of utilizing gentle techniques during dental procedures?
  • What is an essential skill for EFDAs when working with patients?
  • What types of materials are commonly used for direct restorations?
  • What structure provides the primary support for a tooth?
  • Which of the following actions can lead to abrasion of enamel?
  • What are composite resins primarily used for in dentistry?
  • How is patient consent obtained before a procedure?
  • Under what circumstances can an EFDA perform a tooth shade selection?
  • What is the primary function of a dental dam during restorative procedures?
  • Why is patient consent important before treatment?
  • Why is it important for EFDAs to understand dental anatomy?
  • Describe the purpose of dental sealants.
  • What step should be taken if a dental assistant notices a patient exhibiting signs of an allergic reaction during treatment?
  • What is the purpose of the bevel in anterior cavity preparations?
  • What is the effect of excess moisture on dental amalgam during the mixing process?
  • What role does digital radiography play in a dental practice?
  • What is the proper technique for taking dental radiographs?
  • In terms of patient safety, what should EFDAs always keep in mind?
  • What is the purpose of reparative dentin formation?
  • What is the primary function of a matrix band in dental restoration?
  • What is the characteristic of a well-formed dental impression?
  • In what scenario would an EFDA use a matrix band?
  • What role does communication play in a dental practice setting?
  • Which dental emergency might an EFDA assist with?
  • If a tooth is contaminated with moisture after acid etching, what should be done next?
  • What is a key consideration for an EFDA regarding cultural competency?
  • What is a key factor that affects the dimensional changes of amalgam?
  • Which material is primarily used for the final cementation of crowns?
  • What type of rotary instrument is used to remove a submarginal area less than 0.02mm in amalgam?
  • What is the fourth hardest tissue in the body that covers the anatomical roots of teeth?
  • Which enamel structure is found at the tips of the cusps?
  • Abrasion primarily occurs in which area of the tooth?
  • Which of the following is an important property of zinc oxide eugenol as a dental material?
  • Which part of the tooth is primarily responsible for sensation and blood supply?
  • Why is it essential to document all patient interactions in their records?
  • How can an EFDA aid in the process of a crown preparation?
  • Which type of dental materials might an EFDA be instructed to use?
  • How should an EFDA prepare for a dental procedure?
  • What is the role of inorganic fillers in composite materials?
  • What is the best practice for managing a dental emergency?
  • If the pulp receives an excessive stimulus, which type of dentin is formed in response?
  • What is a crucial aspect of preparing for a dental procedure?
  • What is a common reason for using dental adhesive systems?
  • What is the smear layer in dentistry?
  • Which position should the patient chair be adjusted in order to work on the mandibular arch?
  • The anatomical crown of a tooth is described as extending from__________?
  • What is used as the point of balance, support or rest when grasping and activating an instrument?
  • What is the result of exposing amalgam to moisture during placement?
  • What is the importance of proper ergonomics for EFDAs?
  • Exothermic describes the setting reaction that occurs in what cement when used as a base?
  • What should be monitored for patients receiving oral sedatives during procedures?
  • What procedure can an EFDA assist with when a patient has a dental extraction?
  • What is the primary role of the rubber dam in dental procedures?
  • How frequently should dental handpieces be sterilized?
  • What role does contamination from moisture play in amalgam expansion?
  • How should dental dams be secured during use?
  • In what way does clenching and grinding affect dental health?
  • What is important for EFDAs to know regarding infection control?
  • How long is an EFDA certification valid in Ohio?
  • What is the role of fluoride treatments in preventive dentistry?
  • What is essential when mixing dental materials?
  • How can EFDAs help manage patient anxiety in the dental chair?
  • Why is it important for EFDAs to understand the anatomy of the head and neck?
  • What must be documented in the event of a workplace injury in a dental setting?
  • Which procedure involves the use of a matrix system during restorative work?
  • Which skill is essential for EFDAs when managing workflow in a dental practice?
  • What is the surface at the base of a Class I cavity preparation called?
  • What is the purpose of using green stones in amalgam finishing?
  • The placement of glass ionomer on dentin before composite is commonly referred to as which technique?
  • When re-etching a contaminated tooth, how long should the acid be applied?
  • How does condensation during amalgam placement affect its dimensional changes?
  • In what scenario might an EFDA assist during a dental emergency?
  • Why is keeping patient records accurate and updated important?
  • In which area on the tooth is the enamel thickest?
  • What information should be included in informed consent?
  • In preparations with minimal depth, which material is required for pulp protection in proper sequence under an amalgam restoration?
  • How often must an EFDA renew their certification in Ohio?
  • What is the purpose of dental radiographs in treatment planning?
  • Describe the process an EFDA should follow for managing office inventory.
  • What provides natural thermal protection to the pulp?
  • Which material would be used as a direct pulp cap on a pulpal exposure?
  • What is the requirement for obtaining licensure as an EFDA in Ohio?
  • In which direction does the oblique bridge travel across the occlusal surface of a maxillary molar?
  • Which type of bonding is used with composite restorations?
  • Which type of restoration might an EFDA apply using the direct placement technique?
  • What step is involved in applying a dental veneer?
  • Creep and corrosion in dental amalgam can be minimized by having a high amount of which metal in the alloy?
  • In the context of patient charting, what kind of observations should be documented?
  • Describe one reason why documenting procedures is essential for EFDAs.
  • What materials are commonly used for indirect restorations?
  • Why is it essential to take a thorough medical history from a patient?
  • Which hemostatic agent should be used with caution due to its potential to elevate blood pressure and cause tachycardia?
  • What is the function of the Dental Board in Ohio?
  • What behavior is often linked to dental erosion due to exposure to acid?
  • What is the legal limit of fluoride treatment application by an EFDA?
  • In what way do EFDAs contribute to patient care?
  • How can patient comfort be enhanced during dental procedures?
  • What are the continuing education requirements for an EFDA in Ohio?
  • True or False: Enamel is the second hardest tissue in the body.
  • What is the correct classification of caries for a carious lesion located on the proximal surface of tooth #8?
  • Describe the characteristics of high-viscosity glass ionomer cement.
  • What is the primary function of an Expanded Function Dental Assistant (EFDA) in Ohio?
  • Which component is essential to perform a radiograph safely?
  • Which of the following terms describes how teeth fit together in occlusion?
  • How does an EFDA contribute to a positive patient experience?
  • In which type of preparation is a bevel placed on enamel cavosurface margins of anterior preparations?
  • What is the maximum number of local anesthetic injections an EFDA is allowed to administer in Ohio?
  • What should an EFDA remember regarding patient communication?
  • If present, the cusp of Carabelli is located on which molar?
  • What is a primary indication for using a dental crown?
  • Which dental procedures can an EFDA in Ohio perform?
  • What is one of the common materials used for temporary restorations?
  • What type of bonding occurs between the tooth structure and resin materials?
  • What is the minimum educational requirement to become an EFDA in Ohio?
  • For what purpose do EFDAs utilize Standard Precautions?
  • How is the sheet of rubber dam material stabilized after placement of the clamp in the mouth?
  • What material is required for pulp protection in preparations with near pulpal depth, in proper sequence under an amalgam restoration?
  • What effect does temperature change have on amalgam?
  • The majority of a tooth is compromised of what tissue?
  • Which type of waste should be placed in hazardous waste containers?
  • Conventional type composites are more susceptible to staining due to their larger hard filler particles. What does this imply?
  • What should be included in a dental assistant's patient charting documentation?
  • What is an EFDA's role in orthodontic procedures?
  • Which of the following is a duty exclusive to licensed dentists in Ohio?
  • What impact does longer trituration time have on amalgam?
  • What is the primary purpose of an oral assessment in dentistry?
  • Which tooth has the longest root in the mouth?
  • What is the main purpose of a dental dam during a procedure?
  • What are the guidelines for maintaining confidentiality of patient information?
  • Which code regulates the scope of practice for EFDAs in Ohio?
  • Which two metals react during the gamma 2 phase of amalgam formation?
  • Which protocol is essential for infection control in a dental setting?
  • What type of bonding is vital for effective polymerization in dental composites?
  • What causes erosion of tooth structure?
  • Discuss the purpose of maintaining sterilization logs in a dental practice.
  • What is attrition in the context of dental health?
  • Why should an EFDA update their knowledge regularly?
  • What is one key responsibility of an EFDA in a clinical setting?
  • What role does fluoride-releasing materials play in dental care?
  • Which type of certification must EFDAs in Ohio achieve before performing specialized tasks?
  • Which type of X-rays are EFDAs allowed to take under Ohio law?
  • How can an EFDA assist in managing a patient's anxiety during dental procedures?
  • Coronal polishing primarily involves the removal of which type of stains?
  • Which of the following factors should be considered for cultural competency?
  • What technique should an EFDA use to effectively place a dental sealant?
  • What is one critical factor to consider when handling sharp instruments?
  • Why is following protocol for personal protective equipment (PPE) important?
  • Which practice act governs the duties of EFDAs in Ohio?
  • What are considered the working cusps during mastication?
  • Identify an indication for using a space maintainer.
  • What does the term "expanded functions" imply in the context of EFDAs?
  • In case of a medical emergency, what is one responsibility of an EFDA?
  • Which phase contributes to corrosion and creep during the trituration of amalgam?
  • What is a primary focus of continuing education for EFDAs?
  • The fossa found in the central portion of a molar is named what?
  • What substance is included in composites to facilitate the polymerization process?
  • What is the role of an EFDA in tooth whitening procedures?
  • What is the standard infection control protocol for sterilizing dental instruments?
  • Why is a pulpal stimulator used under a restoration?
  • What is a common alternative to stainless steel crowns in pediatric dentistry?
  • Which bonding agent is commonly used with composite materials?
  • Where is the cavosurface margin located?
  • What is the most important consideration regarding patient privacy?
  • What aspect of health is emphasized in the EFDA role concerning patient care?
  • In the context of dental assisting, what does the acronym SDS stand for?
  • What is a primary guideline for the safe handling of dental materials?
  • What attaches to the bone on one end and two cementum on the other end and allows for slight movement of a tooth?
  • What is the primary role of an Expanded Function Dental Assistant (EFDA) in Ohio?
  • How should sharps be disposed of in a dental office?
  • Which tissue provides the defense and developmental functions of a tooth?
  • What is the correct term for inflammation of the pulp?
  • What should EFDAs do if a patient presents with uncontrolled bleeding?
  • What is the requirement regarding local anesthesia for EFDAs in Ohio?
  • What is a common procedure that an EFDA can perform related to restoration?
  • Which of the following is a common indication for using calcium hydroxide in dentistry?
  • How is teamwork essential within a dental practice?
  • Which of the following actions contributes to effective chairside assistance?
  • What cement can be used as a base and obtundant for dental procedures?
  • What type of impression materials can EFDAs use when taking impressions?
  • Which of the following represents a non-chemical cause of dental erosion?
  • What are the signs of gingivitis that an EFDA should recognize?
  • What role does an EFDA play in patient consultation?
  • How can EFDAs assist in patient education?
  • How many cusps does a mandibular 1st molar have?
  • What is the term for the process that hardens composite material?
  • What can cause pulpitis?
  • What is the main component of the organic resin matrix in composites?
  • Rounded borders of enamel which form the mesial and distal of the occlusal surface on posterior teeth are known as?
  • What is commonly associated with the condition known as abfraction?
  • What is a key responsibility of an EFDA during a restorative procedure?
  • What is a critical consideration for EFDAs regarding patient treatment plans?
  • Identify a common material used for dental restorations.
  • Hybrid type composites contain fillers of which sizes?
  • Which dental procedure can an EFDA perform under the supervision of a licensed dentist?
  • What is the primary aim of patient education in a dental setting?
  • How should EFDAs respond if they suspect a patient has an allergy to dental materials?
  • Which metals are commonly found in dental alloy?
  • What cell is responsible for the formation of enamel?
  • What is an essential element in infection control in dental practices?
  • What is the primary purpose of using copal varnish in dental restorations?
  • Which of the following is a benefit of digital radiography compared to traditional radiography?
  • Why is hand hygiene crucial in dental practice?
  • Which instrument can be used to invert the rubber dam material into the sulcus to ensure a seal around the gingiva?
  • How do EFDAs enhance the efficiency of a dental practice?
  • What type of impression materials are commonly used in dentistry?
  • What type of instrument is used to rub and smooth amalgam material?
  • Which of the following is NOT a predecessor material to composite?
  • What is the significance of a dental assistant's infection control knowledge?
  • What type of amalgam consists of both spherical and lathe cut alloys?
  • Why are bases and liners placed in cavity preparations?
  • What is the purpose of radiographic imaging in dentistry?
  • What is the main purpose of using topical anesthetic agents?
  • What is required for an EFDA to legally perform coronal polishing in Ohio?
  • What is a key benefit of sealants in preventive dentistry?
  • What should EFDAs do if a patient experiences discomfort during a procedure?
  • What is required for a dental assistant to become certified as an EFDA in Ohio?
  • What is the proper method for disposing of biohazard waste in a dental office?
  • What minimally invasive procedure is used to treat small interproximal lesions or post-orthodontic white spots?
  • Which of the following materials is often used as a base layer in the sandwich technique?
  • When isolating teeth using rubber dam, the general guideline is to isolate how many teeth mesial and distal to the tooth being restored?
  • What is the importance of taking vital signs in a dental practice?
  • What is a key benefit of maintaining up-to-date knowledge on dental procedures for EFDAs?
  • What is the main legal document governing dental assistants in Ohio?
  • What is the junction of three walls inside a cavity preparation identified as?
  • What is the function of a periodontal probe?
  • Which type of dental radiograph is commonly used for diagnosing periodontal disease?
  • Which area of practice is essential for EFDAs to understand in their role?
  • Which of the following can help to limit anxiety for a patient during procedures?
  • How is patient comfort ensured during dental procedures by EFDAs?
  • What is one type of filler commonly found in hybrid composites?
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