Dentistry Prosthodontics

Overdenture PDF

Overdenture – Definition,Advantages,Disadvantages

What is “Over Denture” (Definition)

Overdenture is a complete or partial removable denture supported by retained roots that is intended to provide improved support, stability, and tactile and proprioceptive sensation and to reduce ridge resorption.

Overdentures can be used in a number of ways.  If you still have your natural teeth (which will help maintain the bone in your jaw) then the overdentures will be cut off at the gum line.  The stumps will be covered by filling material or cast metal copings to help stop them from decaying .

The best way to secure an overdenture is through dental implants. Your Houston dentist can make a full denture and have separate attachments or a bar attachment underneath to lock onto implants in the jaw.

Getting the dental implants can take several months as it needs to attached and the jaw to heal.  Once this is done, then the implant can support the overdenture.

Don’t surprised at the cost. Overdentures can be costly, but they are cheaper than getting a bridge made to fit over dental implants.

Advantages of Over denture

• Preserve alveolar ridge
• Possibly
–   support
–   proprioreception
–   retention (eventually)
–   stress distribution

Disadvantages of Over denture

• Poor oral hygiene
–   caries and periodontal disease
• Soft tissue undercuts
–   esthetics
–   retention
•  Breakage of denture
–   thin
–   stress concentration over abutments

Criteria of Selection of abutment teeth for over  denture

• One per quadrant
• Not adjacent teeth
• Usually mandibular cuspids and premolars
• Maxillary cuspids frequently cause esthetic and retention problems due to soft tissue undercuts
Overdentures
• Regard as transitional
–  need perfect oral hygiene
–  daily non acidulated topical fluoride (sodium fluoride)
• Probably better to place 2 implants

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