Dental Implants Flashcards
What is a dental implant?
A dental implant is an artificial replacement for a tooth, usually made from titanium
What 3 similarities do natural teeth and implants have?
- Oral epithelium
- Sulcular epithelium
- Junctional epithelium
What 3 features do implants not posses which natural teeth do?
- Lack of connective tissue attachment o no transeptal or gingivodental fibres around implants
- Absence of PDL blood supply
- Lack sensory feedback of occlusal forces - occlusion must be monitored
What is osseointegration?
The ability of human bone cells to attach to a metal surface
It is the result of the lack of negative tissue response
What are the 3 components of a dental implant?
- Osseous part - interacts with the bone
- Transmucosal part - interacts with mucosa
- Restoration e.g. crown, bridge
What does endosseus mean?
Endosseus = placed within alveolar bone rather than subperiosteally or intra-mucosally
What is the most common material for dental implants?
Titanium
What is the most common implant design?
A threaded design
What is the benefit of having a microporous (roughened) surface for implants?
Roughness increases the surface area available for more ‘bone-implant contact’
What is the most common classification of implant used?
Cylindrical or root form implants
What is one of the most significant prognostic factors in implant dentistry?
What classification is commonly used for assessing bone quality?
Bone quality
Lekholm and Zarb (1985)
Which area in the mouth has the weakest bone?
Molar areas in the maxilla
Give 3 risk factors for the development of mucosal recession around immediate implants:
- Smoking
- Presence of thin buccal bone
- Presence of thin soft tissue biotype
What is the preferred method of fitting implants?
Delayed implantations as this allows for:
-infection to subside
-easier primary wound closure and bone graft containment
What is ridge preservation?
Preserving the ridge volume that existed at the time of extraction
