3. implant Pros & Complete opposed by nat teeth Flashcards
What is a dental implant?
An artificial tooth root that is surgically anchored ionto the jaw to hold a replacement tooth or teeth or a denture in place/
They don’t rely on neighbouring teeth for support
What are the different parts of a dental implant?
Crown
Abutment
Ti Dental implant
Abutment screw
Abutment
Implant
What is a problem with dental implants?
There is no proprioception and a Px doesn’t know how hard they have toi bite down due to the lack of PDL and periodontum
What can an implant restore?
- A single tooth
- Multiple teeth
- Can nsecure a denture firmly
What are sthe steps to Implant placement (basic 4 steps)?
Raise flap
Place implant
Place cover screw
Suture
What are the prosthetic stages for a single tooth?
Uncover implant
Place abutment
Take impression w/ coping
Choose colour
Place a temporary on the tooth
Cast impression w/ a lab dummyWhat
What are the diff types of abutments to secure a denture firmly?
Locator abutments
Ball abutments
Gold bar
CAD-CAM Ti bar
What are ither less common methods of securing a denture firmly in place?
Magnetic retention
Nocaloc abutment
What are common post-implant Tx complications?
Peri-implant mucositis (plaque and red)
Peri-implantitis
Loose/fractured components
Late implant failure
When should a Rx be taken after the implant is placed and what type should it be?
Baseline PA should be taken one year after the superstructure is connected
What is peri-implant mucositis defined as?
Inflammation of the peri-implant mucosa with no evidence of crestal bone loss - tissues will appear red and swollen and may bleed on gentle probing
What is peri-implantitis defined as?
Infection w/ suppuration and inflammation of the soft tissues surrounding an implant w/ clinically significant loss of peri-implant crestal bone after the adaptive phase
What can be caused if there is a complete upper denture w/ lower natural teeth?
The presence of the natural teeth mean that the high force levels can be developed against the upper maxillary edontouls ridge
Trauma leads to _________ of a denture
instability
What trauma to the maxillary area can occur?
Abuse of the soft tissues - mucous membrane damage + ulceration and discomfort
Alveolar resorption and fibrous tissue replacement - fibrous/flabby ridge
There is an unrealistic load on the remaining bone and it causes it to resorb
What are problems from a fibrous ridge in general and when taking impressions?
Inaccurate impression as tissue moves
Tissue displaceibility & tipping of prosthesis
What is combination syndrome?
Bone loss from the ant. part of max ridge
Hypertorphy of tuberosities
Papiliary hyperplasia in the hard palate
Extrusion of the mand. Ant. teeth
Bone loss under the denture
How do you reduce trauma to the Max denture bearing area?
Maximise covg of dent bearing area by the prothesis
Ensure prosthesis covers the primary load bearing sites
How can you optimise loading of the denture bearing area?
Use of overdentures
Normal dental health - still needs to be considered - helps to retain roots and gives the benefit of toothbourne support
It is important on a long term basis as the mucosa allows for a little bit of movement
For the stability of a max denture - what is needed?
An optimum border seal
Effective post damn
Effect of absence of the post mand teeth - so force is mainly on the upper and upper ant. teeth
What is managmenr of an irregular occlusal plane on the natural teeth?
No adjustments
Minimal localised occlusal grinding
Radial occlusal adjustment
extraction of teeth
Overlap appliances
Complete lower denture with upper natual teeth means?
Problems are more severe
There is increased significant trauma to the lower ridge
