Metal objects, implants and restorative material Flashcards
1
Q
List the parts of an implant
A
- Crown
- Abutment
- Implant/ screw
- Alveolar bone
2
Q
Define osseointegration.
How is it shown in radiographs?
A
- The process where bone cells attach to the titanium surface of an implant. This provides a permanent anchorage for prosthetic reconstruction
- Osseointegration is indicated by a lack of radiolucency around the threads
3
Q
Assess the appearance of dental restorative materials on radiographs
A
- Contemporary restorative materials are generally radiopaque
- Older patients or CALD patients may display examples of radiolucent restorative materials
- Dental amalgam is easily differentiated because it is highly radiopaque
- Composite Resin (CR) and Glass Ionomer Cement (GIC) are almost impossible to differentiate on a radiograph
4
Q
List and describe the three types of pulp therapies
A
- Pulpotomy – used for primary teeth where the pulp has been compromised due to an irritant or trauma. Involves amputation of the coronal pulp and restoration.
- Pulpectomy – similar to a pulpotomy but involving removal of as much affected pulpal tissue as possible, ie: coronal and radicular pulp.
- Root Canal Therapy – used for permanent teeth. Involves complete removal of all pulp tissue
5
Q
What is an interim restoration?
A
- Involves removing peripheral caries without exposing the pulp
- A radiograph will show the caries underneath the restorative material which is generally GIC
6
Q
List three instance where interim restorations may be seen.
A
- The patient is non-compliant
- A primary tooth is near exfoliation
- To stimulate reparative dentine or prior to definitive pulp therapy or extraction
7
Q
List some metal objects that are seen within radiographs
A
- Head Scarf pins
- Space maintainers
- S- shaped hooks
- Braces
- Palatal expanders
- Rubber dam clamps (taken during an endodontic procedure)
- Piercings
- TMJ prosthetic condyle
- Bone plates with screws and bone ligature wires
