Purpose of the post treatment retention of an orthodontic case is:

 # Purpose of the post treatment retention of an orthodontic case is:

A. To allow bony changes

B. To prevent tongue thrusting

C. To encourage the space closure

D. To let the patient get used to the new functional position of the teeth

The correct answer is D. To let the patient get used to the new functional position of the teeth

The purpose of post-treatment retention of an orthodontic case is to let the patient get used to the new functional position of the teeth. After completing orthodontic treatment, the teeth are in a new position, and the surrounding bone and soft tissues need time to adapt to this new position. During the retention period, the teeth are held in place while the surrounding structures adjust to the new position of the teeth. This helps to ensure the long-term stability of the treatment results. The retention period also allows the patient to become accustomed to the new position of their teeth and develop new habits such as proper oral hygiene practices and speech patterns.

In determining the psychological prognosis for a complete denture patient, one of the most valuable aids is which of the following?

 # In determining the psychological prognosis for a complete denture patient, one of the most valuable aids is which of the following?

A. A classification of the ridge relation

B. An evaluation of the  resorption of the ridges

C.  An evaluation of the patient’s occupational background

D. An evaluation of the patient’s present  dentures and attitudes

The correct answer is D. An evaluation of the patient’s present  dentures and attitudes

An evaluation of the patient’s present dentures and attitudes is one of the most valuable aids in determining the psychological prognosis for a complete denture patient. This is because the patient's previous experiences with dentures can greatly influence their attitude towards wearing dentures again. If the patient had a positive experience with their previous dentures, they are more likely to have a positive attitude towards wearing new dentures. On the other hand, if the patient had a negative experience with their previous dentures, they may be more resistant to wearing new dentures and have a more negative attitude towards the treatment. Therefore, evaluating the patient's present dentures and attitudes can help the clinician anticipate any potential difficulties and plan an appropriate treatment approach to ensure a successful outcome.

MCQs on Protein Metabolism - Biochemistry

# Tertiary structure of proteins is maintained by all except:
A. H2 bond
B. Hydrophobic
C. Ionic bond
D. Disulphide bond
E. None of the above

# Which of the following is a derived protein?
A. Protamines
B. Peptones
C. Prolamines
D. Lactalbumin

Which of the following is the general term for the complex microbial community that develops on the tooth surface?

 # Which of the following is the general term for the complex microbial community that develops on the tooth surface? 

a. Calculus. 

b. Saliva. 

c. Dental plaque. 

d. Dental stain. 

The correct answer is C. Dental Plaque. 

Dental plaque is the general term for the complex microbial community that develops on the tooth surface. Plaque is a soft, sticky film that forms on the teeth and can lead to dental caries and gum disease if not removed through proper oral hygiene practices, such as brushing and flossing. Calculus (also known as tartar) is a hard mineral deposit that can form on the teeth when plaque is not removed, and it can contribute to gum disease. Saliva is a fluid that helps to protect the teeth and oral tissues from infection, but it is not the same as dental plaque. Dental stain refers to discoloration of the teeth that can be caused by various factors, such as smoking, drinking coffee or tea, or poor oral hygiene.

Herpes simplex type 1 virus can be transmitted in dentistry by which of the following?

 # Herpes simplex type 1 virus can be transmitted in dentistry by which of the following? 

a. Sharps injury. 

b. Contact with skin. 

c. Inhalation of infected droplets. 

d. Contact of infected material with skin or eyes 

The correct answer is D. Contact of infected material with skin or eyes 

Herpes simplex type 1 virus can be transmitted in dentistry through direct contact with infected oral secretions or lesions, such as through contaminated instruments or gloves, or through accidental exposure to infected material during dental procedures. It is important for dental healthcare personnel to use standard precautions, such as wearing gloves and eye protection, to minimize the risk of transmission of herpes simplex virus and other infectious agents. Sharps injury and inhalation of infected droplets are not routes of transmission for herpes simplex virus, and while contact with skin may be a route of transmission, contact with infected oral secretions or lesions is a more likely mode of transmission in a dental setting.

HIV infection can be transmitted in dentistry by which of the following?

 # HIV infection can be transmitted in dentistry by which of the following? 

a. Inhalation of infected droplets. 

b. Contact with contaminated dental unit water supplies. 

c. Contact with skin. 

d. Use of infected instruments. 

The correct answer is D. Use of infected instruments. 

HIV infection can be transmitted in dentistry by the use of contaminated instruments, such as needles, dental handpieces, and other reusable instruments that are not properly sterilized. While the risk of transmission of HIV in dentistry is low, it is important for dental healthcare personnel to follow standard precautions, including proper sterilization of instruments and use of personal protective equipment, to prevent the transmission of HIV and other infectious agents. HIV is not transmitted through inhalation of infected droplets, contact with skin, or contact with contaminated dental unit water supplies, although these can be routes of transmission for other infectious agents. 

Treating all patients with the same precautions is the definition of which of the following?

 # Treating all patients with the same precautions is the definition of which of the following? 

a. Routine precautions. 

b. Standard or universal precautions. 

c. Patient-specific precautions. 

d. Procedure-specific precautions. 

The correct answer is B. Standard or universal precautions.

Standard or universal precautions are a set of infection control practices designed to prevent the transmission of infectious agents from patients to healthcare personnel and vice versa. The concept of standard precautions involves treating all patients as potentially infectious and using the same level of precautions for all patients, regardless of their diagnosis or presumed infection status. Standard precautions include practices such as hand hygiene, use of personal protective equipment (PPE), safe injection practices, respiratory hygiene and cough etiquette, and safe handling of potentially contaminated equipment and surfaces. The use of standard precautions is important for protecting both healthcare personnel and patients from the spread of infectious diseases. 

Routine precautions: This term is not commonly used in infection control, but it could refer to the general precautions that are routinely taken in healthcare settings to prevent the spread of infection. These precautions may include practices such as hand hygiene, disinfection of surfaces and equipment, and isolation of patients with infectious diseases.

Patient-specific precautions: This refers to infection control measures that are tailored to the specific needs and risks of individual patients. For example, a patient with a highly contagious respiratory illness may be placed in an airborne infection isolation room, which is a specific type of isolation room that is designed to prevent the spread of infectious agents through the air.

Procedure-specific precautions: This refers to infection control measures that are tailored to specific medical procedures. For example, a surgical procedure may require the use of sterile equipment and surgical attire, and the cleaning and disinfection of the surgical site before and after the procedure. Procedure-specific precautions are designed to prevent the transmission of infectious agents during the performance of specific procedures.