Chapter 9 Flashcards
What type of implant is shown?
Blade implant
What type of implant is shown here?
Cylindrical basket
What type of implant is shown here?
Titanium implant
What type of implant is shown here?
What does this image depict?
Radiographic appearance of a cylindrical root form implant
What does this image depict?
Soft tissue interface
What are the advantages of a titanium implant?
- Biocompatible
- Poor conductor
What are the disadvantages of a titanium implant?
- Soft, scratches easily
- Titanium particles in tissue causes an immunologic reaction in some patients: Periimplantitis, Periimplant mucositis
What is the purpose of an implant abutment?
- Attaches to the implant body
- Supports the restoration
- Transition btw crest of the bone and oral cavity
- Soft tissue adapts to the titanium or zirconia surface of the abutment
What is osseointegration?
- Implant to bone interface
- Absence of clinical mobility
- No pain or discomfort
- No increased bone loss
How is the implant to connective tissue interface characterized?
CT fibers are parallel to the implant surface
Fibers encircle the abutment like a drawstring
No PDL present
Keratinized tissue may or may not be present
Implications of an implant to CT interface?
Periodontal pathogens can cause inflammation and bone loss more rapidly along the implant surface
What is the biological seal?
- Where the soft tissue (epithelium) adapts to the abutment
- Acts as a barrier between the implant and oral cavity
areWhat is the differences between the tissue interface with a natural tooth vs. a dental implant?
- Implant has a biologic seal
- Implant lacks cementum
- CT around implant runs parallel, encircling implant
- Implant is osseointegrated, no PDL
What are the 4 periimplant diseases and conditions?
- Peri-implant health
- Peri-implant mucositis
- Peri-implantitis
- Peri-implant hard and soft tissue deficiencies
What characterizes peri-implant health?
- No real difference from periodontal health
- Absence of: erythema, swelling, purulent exudate, BOP
- Probing depths may be deeper at a healthy implant site due to orientation of CT fibers
- Pinpoint bleeding in the absence of redness is not an indication of disease
What is peri-implant mucositis?
Plaque biofilm-induced inflammation of the mucosal tissues around the implant w/ no loss of suporting bone
Reversible w/ removal of causative agent
Diagnostic signs of peri-implant mucositis
Visual signs of inflammation: redness and swelling
Bleeding/supuration on probing
Increased PD compared to prior measurements
Absence of bone loss
What is peri-implantitis?
Chronic plaque biofilm-induced inflammation in peri-implant mucosal tissues and progressive loss of supporting bone
Onset may occur early
Implant does not become mobile until the final stages of peri-implantitis- patient will likely be unaware of condition until mobility occurs
Diagnostic signs of peri-implantitis
Visual inflammation
Presence of suppuration or BOP
Increased PD compared to past measurements
Progressive BL in successive radiographs over time
In absence of baseline PD and radiographs: radiographic evidence of bone levels >3mm and/or PD >6mm in conjunction w/ profuse bleeding
What condition is shown here?
Advanced periimplantitis
What happens to bone following tooth loss?
Bone resorption
What are some hard tissue deficiencies?
Bone resorption following tooth loss
Lack of buccal bone
Bony dehiscence (absence of bone over the facial root surface)
Bony fenestration (bony coverage of the root surface is lost)
What are some soft tissue deficiencies?
Insufficient soft tissue thickness
Inadequate keratinized tissue
Soft tissue recession
Soft tissue fenestration
