FREE NBDHE Dental Hygiene MCQ Question and Answers

Question 1

What field of expertise does an orthodontist have?

Accepted Answer

Your Bite And Smile

Answer

An orthodontist specializes in the diagnosis, prevention, and treatment of dental and facial irregularities, primarily focusing on malocclusions (misaligned teeth and jaws). Their expertise lies in correcting bite problems and improving the alignment of teeth to enhance both oral function and the aesthetic appearance of a patient's smile. This often involves the use of braces, aligners, and other corrective appliances.

Question 2

What do you bite onto to leave your bite impression, which reveals the alignment of your teeth?

Accepted Answer

Wax

Answer

Dental wax is commonly used to take bite impressions, also known as occlusal registrations. The patient bites into the softened wax, which records the precise relationship between the upper and lower teeth when the jaws are closed. This impression is crucial for dentists and lab technicians to accurately assess the patient's bite alignment and jaw relationship when fabricating restorations or orthodontic appliances.

Question 3

Which name describes odontalgia more frequently?

Accepted Answer

Toothache

Answer

Odontalgia is the medical term for tooth pain. It directly translates from Greek as 'tooth' (odon) and 'pain' (algia). Therefore, 'toothache' is the most common and direct description of odontalgia, referring to any pain experienced in or around a tooth.

Question 4

What is the titanium object that appears like a tooth and is used?

Accepted Answer

Dental implant

Answer

A dental implant is a titanium post, shaped like a tooth root, that is surgically placed into the jawbone beneath the gum line. Titanium is biocompatible, allowing the implant to fuse with the bone in a process called osseointegration. This creates a stable and durable foundation for a replacement tooth, bridge, or denture, effectively mimicking the function and appearance of a natural tooth root.

Question 5

What class of dental product includes Listerine and Scope?

Accepted Answer

Mouthwash

Answer

Listerine and Scope are widely recognized brands of mouthwash. Mouthwash is a liquid oral hygiene product used to rinse the mouth, typically to reduce bacteria, freshen breath, and sometimes to deliver therapeutic agents like fluoride. It is a distinct category of dental product separate from toothpaste, toothbrushes, and floss.

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FREE NBDHE Dental Hygiene MCQ Question and Answers