OBTURATORS

Which type of dental obturator is used to fill the gap between the teeth and the alveolar ridge?

• A) Interim obturator

• B) Definitive obturator

• C) Immediate obturator

• D) Healing obturator

• E) Transitional obturator

Which type of dental obturator is used in cases where the maxillary arch has been surgically altered?

• A) Palatal obturator
• B) Lingual obturator
• C) Nasal obturator
• D) Ocular obturator
• E) Orbital obturator

Which of the following is a disadvantage of using a thermoplastic dental obturator?

• A) It is difficult to fabricate

• B) It has poor retention

• C) It may deform at high temperatures

• D) It is not biocompatible

• E) It is difficult to adjust

Which type of dental obturator is used for patients with severe maxillary defects?

• A) Hybrid obturator

• B) Magnetic obturator

• C) Resin-bonded obturator

• D) Implant-supported obturator

• E) Bar-retained obturator

What is the main advantage of using a customized dental obturator?

• A) It provides better retention

• B) It improves speech and swallowing function

• C) It is more cost-effective than other options

• D) It can be fabricated quickly

• E) It is readily available in most clinics

What is the first step in fabricating a dental obturator?

• A) Impressions of the maxillary arch
• B) Wax trial of the obturator
• C) Fabrication of the metal framework
• D) Acrylic resin processing
• E) Evaluation of the fit and function of the obturator

Which type of impression material is commonly used in the fabrication of dental obturators?

• A) Alginate
• B) Polyether
• C) Polysulfide
• D) Silicone
• E) Hydrocolloid