Dentistry: Implant Supported Overdentures

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What is the primary advantage of converting a patient's original denture into an implant overdenture?

Improved aesthetic appeal
Increased masticatory forces
Enhanced soft tissue support
Reduced cost (correct)

What is the typical number of implants required for an implant-supported overdenture in the maxilla?

Eight to ten implants
Six to eight implants (correct)
Five to six implants
Four to five implants

Which of the following is a contraindication for traditional overdentures?

Sharp mylohyoid projections
High muscle attachment
Sensitive mucosa
All of the above (correct)

What is the primary function of a suprastructure or bar in an implant-supported overdenture?

To connect the implants rigidly (D) Signup and view all the answers

What is the main benefit of implant-supported overdentures in the edentulous mandible?

Enhanced masticatory forces (B) Signup and view all the answers

Which of the following is a suitable indication for an implant-supported overdenture?

Patients with superficial placement of the mental foramen (C) Signup and view all the answers

What is the primary role of the implants in an implant-supported overdenture?

To provide a stable foundation for the overdenture (B) Signup and view all the answers

What is the recommended reading material for students to learn more about implant-supported overdentures?

Both A and B (B) Signup and view all the answers

What is one advantage of implant overdentures over fixed prosthesis?

Fewer implants are required (A) Signup and view all the answers

What is a disadvantage of overdentures in the maxillary region?

Bone loss in the posterior region (D) Signup and view all the answers

What type of overdenture combines implant and soft tissue support?

Implant Retained Overdentures (A) Signup and view all the answers

What is the recommended treatment option for edentulous mandible?

Implant Retained Overdentures (A) Signup and view all the answers

What is an advantage of implant overdentures related to esthetics?

Teeth can be positioned to enhance esthetics (A) Signup and view all the answers

What is a characteristic of implant overdentures that allows for better chewing efficiency?

Reduction of the prosthesis flanges (C) Signup and view all the answers

Why are implant retained overdentures a cost-effective option?

Fewer implants are required (C) Signup and view all the answers

What type of attachment is used in implant retained overdentures?

O ring attachments (A) Signup and view all the answers

What is a major advantage of fixed cement retained implant prosthesis compared to overdentures?

Less food entrapment (A) Signup and view all the answers

What is a common complication associated with fixed screw retained implant prosthesis?

Impaired speech (A) Signup and view all the answers

What is the primary indication for fixed screw retained implant prosthesis in patients with edentulous mandible?

Moderate to advanced bone resorption (C) Signup and view all the answers

What is a key benefit of removable prosthesis (overdentures) in medically debilitated patients?

Less surgical intervention (D) Signup and view all the answers

What is the primary purpose of the acrylic flange in fixed screw retained implant prosthesis?

To solve the problem of facial esthetics (B) Signup and view all the answers

What is a common indication for removable prosthesis (overdentures) in patients with edentulous mandible?

Geriatric treatment modality (D) Signup and view all the answers

What is the minimum number of implants required for fixed screw retained implant prosthesis in the mandible?

Four to five implants (C) Signup and view all the answers

What is a common complication associated with removable prosthesis (overdentures)?

Compromised hygiene (A) Signup and view all the answers

What is the main advantage of screw-retained prosthesis compared to cement-retained prosthesis?

Easier retrievability (A) Signup and view all the answers

What is the direction of resorption in the maxilla?

Upward and inward (A) Signup and view all the answers

What is the ideal quality of soft tissues surrounding the implants?

Keratinized mucosa and firmly attached to the periosteum (A) Signup and view all the answers

What is the primary reason for using a removable appliance in terms of lip support?

The flange aids in providing lip support (C) Signup and view all the answers

What is the main benefit of diagnostic wax up?

Predicting the size, shape, and position of artificial teeth (B) Signup and view all the answers

What is the recommended Crown Height Space (C.H.S) for posterior teeth?

8-10mm (A) Signup and view all the answers

Why are removable appliances preferred in terms of oral hygiene?

They offer easier oral hygiene protocol (D) Signup and view all the answers

What is the main limitation in the number of implants used?

Both financial and anatomical limitations (C) Signup and view all the answers

What is the primary requirement for a fixed full arch restoration?

A minimum of 6-8 widely distributed implants (D) Signup and view all the answers

What is the primary reason for using screw-retained prostheses?

All of the above (D) Signup and view all the answers

What is the primary drawback of using cement-retained prostheses?