Free DMD Dental Procedures & Techniques Questions and Answers

Question 1

What is the purpose of a dental filling?

Accepted Answer

To fill a cavity and restore tooth function

Answer

The primary purpose of a dental filling is to repair a tooth that has been damaged by decay, restoring its structural integrity and functionality. After the decayed portion of the tooth is removed, the cavity is meticulously cleaned and then filled with a restorative material like composite resin or amalgam. This process prevents further decay, alleviates sensitivity, and allows the tooth to function normally during chewing.

Question 2

What type of dental procedure is typically used to treat a root canal?

Accepted Answer

To clean and disinfect the root canal

Answer

A root canal procedure, also known as endodontic treatment, is typically performed when the pulp inside a tooth becomes infected or inflamed due to deep decay, cracks, or trauma. The procedure involves carefully removing the infected or damaged pulp, thoroughly cleaning and disinfecting the intricate root canal system. Finally, the canals are filled and sealed to prevent future infection, thereby saving the natural tooth from extraction.

Question 3

What is the role of dental sealants?

Accepted Answer

To protect molars from cavities

Answer

Dental sealants are thin, protective coatings applied to the chewing surfaces of molars and premolars, which often have deep grooves and pits. These anatomical features can easily trap food particles and bacteria, making them highly susceptible to decay. Sealants act as a physical barrier, preventing plaque and acids from accumulating in these vulnerable areas, thereby significantly reducing the risk of cavities, especially in children and adolescents.

Question 4

What is the first step in a dental cleaning procedure?

Accepted Answer

Scaling to remove plaque and tartar

Answer

The first and most crucial step in a professional dental cleaning procedure is scaling, which involves the meticulous removal of plaque and hardened tartar (calculus) from the tooth surfaces. These deposits accumulate both above and below the gumline and cannot be removed by regular brushing alone. Scaling is essential for preventing gum disease, reducing inflammation, and preparing the teeth for subsequent polishing and fluoride application.

Question 5

What is a common material used for dental crowns?

Accepted Answer

Porcelain, metal, or porcelain-metal combination

Answer

Dental crowns are custom-made caps that cover a damaged or weakened tooth, restoring its shape, size, strength, and appearance. Common materials used for crowns include porcelain, which offers excellent aesthetics, various metals (like gold alloys) for superior strength and durability, or a combination of porcelain fused to metal (PFM) to blend both aesthetic appeal and resilience. The choice of material depends on the tooth's location, the patient's bite, and their aesthetic preferences.

DMD - Doctor of Medicine in Dentistry Practice Test

DMD - Doctor of Medicine in Dentistry Practice Test

Free DMD Dental Procedures & Techniques Questions and Answers