Tamer El-Sprinty Q2 Implants Flashcards
Distraction Oseogenesis is breaking bone, attaching, and _________
screwing away
Implant failure in the esthetic zone is due to poor judgement and Tx Planning
True
Keys to successful Mx Anterior implant - M/D papillae and the ____
FGM
4 Diagnostic keys to predictable esthetic Implants:
relative tooth position/dimension of edentulous space
form/biotype peridontium
tooth shape
position of osseous crest
Not enough facial bone can result in the FGM being too Apical
True
____mm Implant to Adjacent tooth
B/L thickness of bone must be…
1.2-2 mm
1 mm
Minimum edentulous space M/D width in anterior (LI):
Minimum Bucco-Lingual width
6 mm
5 mm (b/c small width implant - 3.1mm or so)
Interarch distance for a single restoration must be:
If less than 1/2 mm to this distance…
If more than 1/2 mm to this distance..
also…
5 mm
grind
crown
Extraction, Ortho Intrusion
Flat thick gingiva has a better prognosis
True
What kind of Mucosa has Circumferential fibers and a Gingival Cuff that forms around implants similarly to those seen around natural dentition?
Attached keratinized mucosa
If an Implant emerges through _____ keratinized mucosa, it sill have a gingival cuff similar to natural dentition
This is because it has _____ fibers
Attached
Circumferential
There must be ___mm of keratinized mucosa around Implants
3-4 mm
*attached preferable, but unattached ok of good OH
What tooth shape has best prognosis for an Implant?
Why?
Square
longer contact (no Black Holes)
Class I papilla:
Class IV papilla:
4 papilla:
1 papilla:
Palacci vs Ryser
intact
gone
intact
gone
Tarnow study found that Bone ___ mm to papilla will regenerate at 100%
6mm:
7mm:
5 mm
56 %
27%
There needs to be ___mm between Implant surface and Tooth to maintain Interproximal Bone
1.5 mm
If the recession of the bone is more than 5 mm from the Incisal Edge, the pt will have what?
*resorption can occur if the surgeon put implant too close to the adjacent tooth
Black Triangle
T/F
It is more difficult to maintain or create a Papilla between 2 adjacent Implants
True
Adjacent implants need to be how far apart?
3 mm
Pontica have better results with the Interdental Papilla
True
*can play with soft tissue a little more
The implant should be placed how far away from the CEJ?
In the Anteriors, placement needs to be a little more ______
distance?
2-3 mm
LIngual
2 mm lingual to the facial surface
If you aren’t 3 mm from the CEJ with placement what is compromised?
If you are deeper than 3mm from the CEJ what happens?
emergence profile
bone loss/difficulty cleaning
Anterior measurments need be: B/L:
M/D:
Apico:coronal:
5 mm
6 mm
2-3 mm from CEJ - another 10mm of height, slightly Lingual for facial space, 2mm on facial
If you have less than 6mm M/D space, what?
Ortho
Regular pt success rate:
Smoker success rate:
*what we say in clinic
95%
85%
smoker failure:
non-smoker failure:
- 28%
4. 76%
Smoking cessation for a total of ____ weeks will yield the same results as non-smokers
9 weeks
More MBL (marginal bone loss) in smokers
True
3 occlusal considerations for implants:
contact in central fossa
low cusps
reduce size occlusal table
Preferable way to retain implants:
Screw
3 cases Cement retained implants be used?
improper angulation correction
Mn PM (esthetics)
Mn incisors
Soft tissue will grow on top:
___ will stay above soft tissue
cover screw
healing abutment
What type of impression is used for Parallel Implants?
What type is used for severely Angled Implants?
Transfer (Closed Tray)
Pick-Up (Open Tray)
2 general parts to any implant
body
restorative part
Where natural roots converge, use what?
*also for narrow ridge, limited bone
Tapered implants
Screw uses _______ Abutment
Cemented uses ______ Abutment
non-engaging
engaging
2 Indications for Non-Engaging “Cast-To” gold abutment:
Lack of inter-occlusal clearance
Poor implant angulation that would lead to unesthetic restorations
2 types of Abutments:
engaging
non-engaging
CAD CAM can produce customized abutments with good emergence profiles in what 2 materials?
Ceramic
Titanium
Atlantis abutments are very precise
True
Atlantis scans, restores virtually, designs abutments virtually, and mills out of titanium blanks
True
Dual transition accommodates soft/hard tissue needs
True
HA surface is more bioreactive than Ti
True
Cement what 2 areas of the Mn?
Incisors
Premolars
*and less ideal angles
***SCREW everywhere else
Cover Screw is a ____ Stage surgery
Healing Abutment is a _____Stage surgery
Provisional Abutments are more conducive to what?
2
1
soft tissue healing
Cover Screw stays at the level of the…
Healing Abutment is above the…
bone
gingiva
Verify radiographically that your Abutment is seated with what?
BW
We take impressions with ___
medium body PVS
In a closed tray technique we put the posts in and pour up
True
Open tray has holes drilled and is for what?
divergent implants
With Cement, we use a _______ Abutment
With Screw, we use a ________ Abutment
Engaging
Non-engaging
What type of Abutment do we use with Splinting?
Non-Engaging
*something about path insertion
If you have to use a Cement Retained Mx LI, what type of Abutment?
Engaging
Any pre-formed Abutment with a finish line must be a _________
Engaging
***b/c will be cemented
All CAD/CAM abutments are customized in Ceramic or Ti and are ______ retained
meaning they have ______ abutments
Cement
Engaging
A tooth must have a ____mm Ferrule in order to hold a crown after RCT
The dentin must be ___mm thick
__mm Biologic Width
- 0 mm
- 0 mm
- 0 mm
RCT - what is more important, post length or diameter?
Length
2 reasons to err on the side of the Palatal when placing Implants on the Anterior:
Better Primary Stability
Won’t risk facial puncture of bone
The expected Soft Tissue Shrinkage is _____ mm after 6 Months
0.6 mm
Why do we want a LIght Contact in occlusion for an Implant?
no PDL
Problem with 2 Adjacent Implants:
more difficult to create/maintain Papilla
Distance between 2 Implants:
3 mm
A multiple unit Cement Retained will have _______ abutments
Multiple unit Screw Retained will have _______ abutments
Engaging
non-engaging
Tooth to implant distance:
1.5 - 2.0 mm
Anterior restorations can be restored as individual single units or splinted
True
Survival rate of Onlay Bone Graft
98%
Limitations for Mx Posterior Implants include Quality and ______
Also pneumatized ________,
_____ cortical bone
poor quality ____ bone
Quantity
Mx Sinus
thin
trabecular
If you can’t establish Canine Guidance, make sure you have….
Group Function
The use of autogenous bone in a sinus lift may be necessary for success
True
Posterior Mn limiting factor for Implants
IAN
*10mm or longer implant may be difficult
**also width of bone
The use of Short and Wide Implants in the Post Mn has not been predictable
True
*prone to occlusal overload, bone loss
There are minimal Perio complications with Implants
True
Implants predictably maintain cortical bone
True
Cost, technique, and Maintenance are all downsides to Implants
True
What is more difficult to maintain: FPD or Implant?
More difficult to Diagnose/Tx plan?
Implant
Implants
Biological complications are more frequent with FPD and RPD than an Implant
True
Branemark:
osseointigration
Kalamchi - there is no absolute contraindication for an implant
True
Subperiosteal, Transmandibular, Blade, Endosteal - all Implant types
True
What type of implant are implants?
Endosteal
Bisphosphonate patient may require special consideration
True
2 things we need for Tx planning Implants:
Articulated study models
CBCT
*3rd - surgical guide
Original protocol was how long for healing before implant placement?
3-6 months
A Sinus Fill elevates the ________ Membrane
Schneiderian
Should implants ever be connected to natural teeth?
No
What is minimum Surgical Access for an Implant Site?
35 mm
Distance from Implant to F/L:
to Root Surface:
between adjacent implants:
1 mm
1.5 mm
3 mm
The head of the implant must be ____ mm Apical to the planned CEJ
This allows CT and _____ epithellial biological width to form the transmucosal portion of the implant
2-3 mm
Junctional
Final Impressions made _____ weeks after placement
6-12 weeks
An Overdenture requires ____ Implants in the Mx
Overdenture requires ____ Implants in the Mn
4-6
2-4
Maximum heat generated while drilling out implant site:
47 degrees Celsius
There should be initial stability and no micro-movement after placement of an Implant
True
Stability of the Implant at 12 Weeks is influenced by what?
not what?
Diameter
not length
Kalamchi
____% of the implant surface integrates with bone
50-70%
Bone Density D1:
D2:
D3:
D4:
homogenous compact
thick compact, dense trabecular
thin cortical, dense trabecular
thin cortical, low density trabecular
Bone type: Ant Mn
Post Mn
Ant Mx
Post Mx
D1
D2
D3
D4
Matl acting as a scaffold for new bone
BMP recruits undifferentiated cells to become osteoblasts
Living bone cell transport from doner site to recipient site
Osteoconductive
Osteoinductive
Osteogenic
Alloplastic matl is:
Allograft is:
Only Osteogenic source of bone graft:
Osteoconductive
Osteoconductive/Osteoinductive
Autogenous
A patient can be too old for an implant
False
Use the Surgical Guide, but Don’t rely on the surgical guide
True