Dental implants /certified fixed orthodontic courses by Indian dental academy

DENTAL IMPLANTS

www.indiandentalacademy.com

INDIAN DENTAL ACADEMY
Leader in continuing dental education


RATIONALE
Replacement / Restoration of lost teeth
has post challenges since time
immemorial.
The needs are different:
-Completely edentulous
-Partial edentulous
-Others

COMPLETE DENTURES
Patient Education

Common Problems with Dentures:
•Inability

to speak clearly.
•Inability to eat certain foods (salad, steak,
corn-on-the-cob).
•Fear of social situations.
•Use of adhesives.
•Interference with taste.
•Uncomfortable.

© Centerpulse Dental Inc., 4937 rev 04/03


FIXED PARTIAL DENTURES
Patient Education

A Traditional Bridge
•Damages
•Takes

neighboring virgin teeth.

the underlying bone out of function.

•Susceptible

to decay around prepared teeth.

•Statistically,

it needs replacement every 7 to 10 years.

Source: Institute for Dental Awareness



OSSEO INTEGRATION

… Is a histologic definition meaning “ a
direct connection b/w living bone and load
bearing Endo Osseous Implant at the light
microscopic level”


Patient Education

Dental Implants
A dental implant is an artificial tooth root.
Implant restorations look and feel more like
your natural teeth than other therapies.
For those who have removable restorations
(full or partial dentures) dental implants
increase stability, function, esthetics and
preserve the structural integrity of bone.



Patient Education

How does bone attach itself to the implant?
Just like a rock climber secures his climb by driving his piton
deep into rock, an implant attaches to bone.


OSSEO INTEGRATION
Bio-compatable material.
 An implant precisely adapted to the
prepared bony site.
A-traumatic surgery minimize tissue
damage.
Immobile,undisturbed healing phase.


CLINICAL IMPLANT COMPONENTS
IMPLANT :
-Titanium, Calcium-Phosphate
Ceramics.
-Threaded / Non threaded, with or
without HA coating, Plasma spray.


SEALING SCREW


HEALING CAP


ABUTMENT


IMPRESSION POST
This facilitates the transfer of the intra oral
location of the fixture or the abutment to a
similar position in the laboratory cast.


LABORATORY ANALOUGE
Is a component machined to exactly
represent either the implant or the
abutment in the laboratory cast.


TYPES OF IMPLANTS
SUB-PERIOSTEAL IMPLANTS
TRANS OSTEAL IMPLANTS
END OSTEAL IMPLANTS
BLADE IMPLANTS

SUCCESS CRITERIA
Individual unattached Implant is immobile when
tested clinically
No evidence of Peri Implant radiolucency
The mean vertical bone loss is < .02mm
annually after the first year
No persistent pain,discomfort or infection is
attributable to the Implant
The Implant design does not preclude
placement of a crown or prosthesis with an
appearence the is satisfatory to the patient and
the dentist

OSSEO INTEGRATION
SEM study showing
intimate contact b/w
bone(blue) & Ti
interposed b/w bone
and body of implant


SURFACE OF IMPLANT
SEM study shows
Implant surface
characterized by
presence of pores.


PORES ENLARGED
Pores resemble
VOLCANO.


HEALING
Emanating from existing bone, new bone
is formed by osseo conduction directly on
the implant surface following the contour
of the threads.
The osteogenic cells differentiate into
osteoblasts.
By this,always new osteogenic cells,
socalled pre osteoblasts,must be recruited
from stem cells and have to migrate to the
front part of bone formation.

Pre osteoblasts form cytoplasmic
extentions,socalled pseudopodia, which
are important for both cell attachment and
migration on solid surfaces.
By means of pseudopodia, pre
osteoblasts make use of porous structures
of implant surface to migrate and become
attached.

Pre osteoblasts become differentiated into
osteoblasts and start the secretion of bone
matrix.
Subsequently, the collagenous bone
matrix becomes minerallized and
deposites of woven bone are formed
directly on the implant surface.
There by, initially a small band of woven
bone follows the contour of the
threads.This small band broadens and
matures to lamellar bone.

IMPLANT ATTACHMENT
SEM micrograph
showing a pre
osteoblast attached
by pseudopodia to the
pores of implant
surface


Patient Education

Triangle of Success
Surgical:

Res torative::

•Clinical evaluation

•Clinical evaluation
•Diagnosis
•Restoration

•Diagnosis
•Surgery

Patient
•Maintenance

Laboratory:
•Fabrication of restoration
and final prostheses


Leader in continuing dental education


Dental implants /certified fixed orthodontic courses by Indian dental academy

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