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DANB's MDG (MDG) Practice Tests & Test Prep by Exam Edge - Exam Info


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DANB's Maryland General Dental Assisting - Additional Information

At ExamEdge.com, we focus on making our clients' career dreams come true by offering world-class practice tests designed to cover the same topics and content areas tested on the actual Dental Assisting National Board DANB's Maryland General Dental Assisting (MDG) Certification Exam. Our comprehensive DANB's Maryland General Dental Assisting practice tests are designed to mimic the actual exam. You will gain an understanding of the types of questions and information you will encounter when you take your Dental Assisting National Board DANB's Maryland General Dental Assisting Certification Exam. Our DANB's Maryland General Dental Assisting Practice Tests allow you to review your answers and identify areas of improvement so you will be fully prepared for the upcoming exam and walk out of the test feeling confident in your results.

Because our practice tests are web-based, there is no software to install and no need to wait for a shipment to arrive to start studying. Your DANB's Maryland General Dental Assisting practice tests are available to you anytime from anywhere on any device, allowing you to study when it works best for you. There are 15 practice tests available, each with 125 questions and detailed explanations to help you study. Every exam is designed to cover all of the aspects of the DANB's MDG exam, ensuring you have the knowledge you need to be successful!


DANB's Maryland General Dental Assisting - Additional Info Sample Questions

Before an impression is sent to a commercial laboratory, the impression is:
 





Correct Answer:
disinfected
**question:** before an impression is sent to a commercial laboratory, the impression is: - silicon bonded - disinfected - extruded - dehydrated - disinfected **correct answer:** disinfected **expanded explanation:**

dental impressions are vital tools used in various dental treatments, including the creation of crowns, bridges, dentures, and other dental restorations. these impressions are negative imprints of hard (teeth) and soft tissues in the mouth from which a positive reproduction can be formed. they are made using specific materials that are designed to precisely capture the details of the patient's dental anatomy.

however, during the impression taking process, these materials come into direct contact with the patient's oral tissues, which may include saliva, blood, and other potential contaminants. this exposure makes dental impressions a potential vector for transmitting infections between patients and dental professionals or laboratory technicians. common pathogens that might be present include bacteria, viruses, and fungi.

to mitigate this risk, it is essential that dental impressions are properly disinfected before they are handled further or sent out to a commercial laboratory. disinfecting the impression minimizes the risk of cross-contamination and helps ensure the safety and health of dental technicians who will handle these impressions in the lab.

the process of disinfection typically involves spraying or immersing the impression in a high-level disinfectant solution that is capable of killing pathogens. the specific guidelines for disinfection, including the type of disinfectant and the duration of exposure, are determined by infection control protocols and regulations in the dental industry. some commonly used disinfectants include glutaraldehyde, hypochlorite solutions, and alcohol-based agents.

it's important to note that while other processes like dehydrating, extruding, or bonding with silicon might be relevant to other aspects of dental materials handling or impression taking, they do not address the critical need for infection control. therefore, the correct and mandatory action before sending impressions to a commercial laboratory is disinfection. this ensures that the laboratory receives non-infectious materials, thereby protecting lab technicians and ultimately contributing to the overall infection control chain in dental care settings.

Which of the following Best represents the timeframe to disinfect agar and alginate impressions  with an iodophor?
 





Correct Answer:
an immersion time of 10 minutes


when considering the disinfection of dental impression materials such as agar and alginate, it is crucial to adhere to the recommendations provided by the manufacturers of these materials. this ensures that the impressions are not only effectively disinfected but also maintain their integrity and dimensional stability. for these types of materials, iodophor and sodium hypochlorite solutions are commonly recommended disinfectants. however, the concentration and exposure time can significantly affect the outcome.

iodophors are a type of iodine solution that release free iodine when in contact with the material, providing a broad spectrum of antimicrobial activity. they are effective against a wide range of bacteria, viruses, and fungi. the effectiveness of iodophors as disinfectants for dental impressions is well-documented, but they must be used correctly to avoid damaging the impression material and to ensure the safety of the subsequent handling.

for agar and alginate impressions, the recommended immersion time in an iodophor solution is generally around 10 minutes. this duration is sufficient to achieve effective disinfection while minimizing any adverse effects on the impression material. immersion times significantly longer than this, such as 24 hours, can lead to changes in the impression material, such as swelling, distortion, or degradation, which can compromise the accuracy of the dental casts made from these impressions.

it is important to note that while iodophor is compatible with agar and alginate impressions, the specific concentration of the iodophor and the conditions under which it is used (such as temperature and dilution) should also be followed as per the manufacturer’s guidelines. this ensures that the disinfection process is both effective and safe, preserving the detailed anatomy captured in the impression and preventing any cross-contamination.

thus, adhering to the recommended immersion time of 10 minutes for disinfecting agar and alginate impressions with an iodophor not only aligns with best practices for infection control in dental settings but also protects the integrity and accuracy of the impressions. this timeframe balances effective microbial kill with the preservation of the material properties essential for accurate dental restorations.