Thursday, November 17, 2011

Lateral Ridge Augmentation/Implant PLacement. KNOW YOUR MATERIALS

Here is a case I just did this morning. People always ask me..
What type of Bone do you use?
What type of Implant do you place?
Whayt type of Membrane?
What Sutures.
Dentists on the lecture circuit say ONE ANSWER. It is totally incorrect. You need to know why you are using the materials and what you want to achieve. That being said Here is a case where we use different materials and they were all thought out. HEre we go.

Patient presents missing #5. Here is his Intraoral presentation. For those of you that say you don't need a CBCT. Here you go!




Intraorally looks like he has TONS of bone. Slight dehiscence. Here is his CBCT





The Whole Buccal and Palatal plate is practically missing. So what are my options

1) The August Method: FPD
2) Block bone graft wait 6 months, implant 3-4 months,
3) Simultaneous Implant and Lateral ridge augmentation


So we chose option 3. So we have to achieve certain criteria to make it successful
1)CHoose an implant that is tapered and has aggressive threads so that it can be stabilized in minimal bone. and an implant that is recession occurs can theoretically stabilize the soft tissue.
CHoice: Biohorizons Laser Lok 3.8X12mm
2) CHose a bone graft that will retain space and shape and will resist the pressure from the cheek and flap.
Choice: Dynagraft-D Putty

3) Chose a membrane that will resist pressure and maintain space. Chose a membrane that will not need primary closure in case the flap cannot be approximate
Choice: Cytoplast Titanium Reinforced Buccal Membrane
4) If defect is large have a Prosthetic PLanning Kit available to determine if angle and position of implant will work.
Choice: MIS PROSTHETIC PLANNING KIT
5) chose a Suture that is non resorb able so you can control the healing. Chose a suture that has a very low tissue reaction to prevent scarring and infection
Choice: 5-0 Nylon

With all my materials and procedure thought out prior to surgery off we are to the races and no surprises are there.

Palatal crestal incision with vertical releasing. When doing vertical releasing angle the blade so that reproximation is not butt end but rather slides over and scarring is minimized. Notice Defect.







Notice above the palatal plate is also thin




Notice the abutment its 15 degrees. and fits perfectly. IMportant to try in because if hex is not positioned correctly you won't be able to use a prefab abutment.



Looks buccal placed as it is. BUt palatal bone non existent. Will use Zirkonia abutment and emax crown to restore. Tissue very thick so should be ok.

Bone Graft Placed.Very Clean Very thick



Titanium Reinforced Membrane.


Prosthetic PLanning Kit



Sutures 5-0 Nylon








Notice Bulkiness of the ridge.



Enjoy. As usual COmments Welcomed!

Tuesday, November 15, 2011

Single Implant Trap Door Incision

So patient walks in with PAP on #7. What do you do? Assuming tooth non restorable or patient declines endo and Implant is treatment of choice. Options:

1) a-Extract tooth wait two weeks
b-Full flap and GBR with titanium reinforced 4-6 months
        c- Place implant 3-6 months
d- Restore implant
Timeline: 1-1.5 years
Result? Esthetic? maybe

2) a-Extract the tooth,full flap, implant and bone placement 3 months
     b- restore tooth
Timeline 3-6 months
Pain for patient: ????
Postion of papilla:????
Position of alveolar crest????


I am sure there are lots of options but here is how I routinely do these cases. Completed in 6-10 weeks depending on Ostell Reading. This case was completed in 8 weeks.
Materials:
Implant: Blue Sky Bio Trilobe 4.3
Membrane: Pericardium
Suture: 5-0 Nylon
Bone: CErasorb M Dental (PH EXCELLENT FOR Infected sites)
Abutment: Zirkonia with titanium base Implant Direct
Crown: Emax
Laboratory: Lifelike Dental Studio (did a kick ass job)
CBCT: Kodak 9500 Full Field of View


So I wanted to keep the position of the papilla the same and I wanted to place the implant that day. I also didn't want the patient to be in any pain.

Here is how he started:





You can't see it in this photo but he had a draining fistula


Here you can see it

Below is the CBCT. Notice how there is a bridge of  bone at the alveolar crest but none at the apex.








So we decided to use this type of incision design




Tooth is extracted Atraumatically.
Socket is curetter. Alveolar Crest Bridge is confirmed
 Implant is palatally placed
Trap Door is done
Bone graft is placed
pericardium membrane
Sutures



Notice how papilla is still intact
Healing abutment is placed (comes free with the implant)




Ostell is used at 8 weeks to check stability of implant. Reading of 74 is achieved and we are off to the races




Shade Communication with the lab


ANd Final






Comments are Welcome.