A dental implant (also known as an endo-osseous implant or fixture ) : s a surgical component
that interfaces with the bone of the jaw or skull to support a dental prosthesis such as a crown,
ridge , denture , facial prosthesis or to act as an orthodontic anchor
The implant fixture is the component that is surgically placed into the bone, Also called by
'Implant Body' Divided into following parts-
1. .Body Crest module
2. Crest Module
3. Collar
Body
● May be cylindrical or tapered cylindrical.
● Smooth or threaded surface
● Solid or contain holes or vents to allow bone grow through
● Threaded is suitable for placement.
● Threads maximize initial contact with bone acilitate dissipation of stresses
Functional surface depends on
● Thread pitch- Distance between the threads
● Thread shape- shaped square and buttress
● Thread depth- Dis_________and most inside thread
● Smaller the pitch, more threads/unit length and K greater surface area
● Greater the thread, greater the surface area
, Crest Module
● Portion of fixture that provides a connection to the abutment or attachment .
● Offers resistance to axial occlusal loads and aims provide a precise fitting for abutment
on the structure
● It consists of a platform and antirotation features
Implant Colar
● Superior part of fixture
● For submerged implants it is 0.5-1 mm in height and non-submerged 3-5mm.
Purpose-
● Allows functional remodeling of bone
● Improves abutment-fixture interface
● Prevents exposure of surface coatings
Abutments
● Abutments are the component of the implant system that screw directly into the implant
● Abutments eventually support the prosthesis in screw- retained restoration , in as much
they accept the retaining screw of prosthesis
● For cement retained restorations, abutments may be shaped like a conventional crow
● The walls of: abutments are usually smooth, polished, and straight -sided.
● The length range from 1-10 mm
that interfaces with the bone of the jaw or skull to support a dental prosthesis such as a crown,
ridge , denture , facial prosthesis or to act as an orthodontic anchor
The implant fixture is the component that is surgically placed into the bone, Also called by
'Implant Body' Divided into following parts-
1. .Body Crest module
2. Crest Module
3. Collar
Body
● May be cylindrical or tapered cylindrical.
● Smooth or threaded surface
● Solid or contain holes or vents to allow bone grow through
● Threaded is suitable for placement.
● Threads maximize initial contact with bone acilitate dissipation of stresses
Functional surface depends on
● Thread pitch- Distance between the threads
● Thread shape- shaped square and buttress
● Thread depth- Dis_________and most inside thread
● Smaller the pitch, more threads/unit length and K greater surface area
● Greater the thread, greater the surface area
, Crest Module
● Portion of fixture that provides a connection to the abutment or attachment .
● Offers resistance to axial occlusal loads and aims provide a precise fitting for abutment
on the structure
● It consists of a platform and antirotation features
Implant Colar
● Superior part of fixture
● For submerged implants it is 0.5-1 mm in height and non-submerged 3-5mm.
Purpose-
● Allows functional remodeling of bone
● Improves abutment-fixture interface
● Prevents exposure of surface coatings
Abutments
● Abutments are the component of the implant system that screw directly into the implant
● Abutments eventually support the prosthesis in screw- retained restoration , in as much
they accept the retaining screw of prosthesis
● For cement retained restorations, abutments may be shaped like a conventional crow
● The walls of: abutments are usually smooth, polished, and straight -sided.
● The length range from 1-10 mm
