The dental implant procedure. - Part 1.
This page outlines and illustrates the series of steps that a dentist follows when placing a dental implant. In most cases, a person's procedure can be performed right in their dentist's office.
The steps of the dental implant procedure. -
Part 1 of our overview (this page) covers the beginning of the process through the completion of the pilot hole for the implant. The remainder of the procedure is outlined in Part 2.
Step 1 - Anesthesia.
Having an implant placed is a surgical procedure. And for that reason a local anesthetic (and possibly also sedation or a general anesthetic) is used. We discuss this issue at the bottom of this page.
Step 2 - Accessing the jawbone.
Flapping gum tissue back to reveal the bone at the implant site.
As an initial surgical step, the dentist will need to access to bone in the region where the implant will be placed. To do so:
- They'll first use a scalpel and score incisions in the overlying gum tissue that outline two separate flaps.
- They'll then use a hand instrument (an elevator) to push and peel each flap of gum tissue back, so the bone underneath is exposed.
Evaluating the implant site.
Once the gum tissue flaps have been raised, the dentist will evaluate the shape of the bone that's been exposed.
Ideally, this portion of the jaw should be relatively flat and smooth on top. If the dentist finds differently, they will use their dental drill and reshape it so it meets the needed conditions.
Treatment variation - A less invasive way to access the jawbone.
In those instances where:
- There is no question about the suitability of the gum tissue and bone in the region where the implant will be placed.
- And no concerns about being able to suitably position the implant itself.
There's a chance that the dentist can access the jawbone through a small circular incision rather than by raising tissue flaps.
- This technique involves the use of a circular tissue punch that scores and removes a small round section of gum tissue (one slightly larger in diameter than the planned implant).
- The procedure (bone drilling and implant placement) is then performed through this opening.
The advantage of using this process is that it reduces the amount of surgical trauma that's created during the procedure.
Step 3 - Identifying the position for the implant.
Once the bone has been accessed, the dentist will use a series of drills, each of increasing diameter, to prepare a hole into which the dental implant will ultimately be placed.
As a starting point for this process, the dentist will first use a small round bur (bur = dental drill bit) to make a divot in the bone.
Initial penetration of the pilot drill.
This divot, which penetrates the bone's hard outermost layer, helps to insure that the positioning of the pilot drill (the first drill bit used deep inside the jawbone) is easily centered in the implant site.
Step 4 - Creating the pilot hole for the implant.
The initial drill that's used when making the hole for a dental implant is called a pilot drill.
This is simply a small diameter drill bit which, as its name implies, is used to create a hole that serves as a guide for other drills used later on.
A guide for the drill.
When using the pilot drill, the dentist may make use of a plastic jig. This is a device that they've created ahead of time using plaster casts of the patient's mouth. When it's used:
A bone drill.
- It's fitted into position.
- The pilot drill is then inserted through it's opening that's centered over the implant site.
- The jig helps to center and guide the drill's orientation.
During this initial phase of drilling, the pilot is just used to create a hole about one-third to one-half the total length needed for the dental implant.
Checking the orientation of the pilot hole.
Step 5 - Evaluating the initial orientation of the pilot hole.
Once the initial portion of the pilot hole has been created, the dentist will insert an alignment pin into it.
The idea is that the pin gives the dentist an opportunity to double check the orientation of the hole that's being created.
If its alignment seems off target (such as tipped too far in one direction), since the hole is only a partially as deep and wide as it will need to be, its orientation can still be corrected.
Taking the pilot drill to full depth.
Step 6 - Completing the pilot hole.
After making any needed adjustments, the dentist will resume their drilling.
They will now extend the pilot hole far enough to accommodate the full length of the dental implant they will be placing. Measurement markings located on the drill itself help the dentist to gauge this depth.
The bone must be treated with care.
It's essential that the dentist does not overheat the bone during the drilling process.
Overheating can result in bone cell death which, in turn, will prevent successful osseointegration (bone to implant fusion).
What they'll do.
So to avoid this complication, the dentist will insure that the drills they use are sharp and not used with excessive drilling speed or pressure.
During the drilling process, they'll continuously flush the tooth implant site with water or saline solution as a way of minimizing the amount of bone-damaging heat that's generated.
Evaluating the depth and orientation of the completed pilot hole.
Step 7 - The final check of the implant's pilot hole.
The dentist will now reinsert the alignment pin into the completed pilot hole. This allows them an opportunity to confirm that its overall alignment and positioning is suitable.
The measurement markings on the pin also allow the dentist to confirm that the depth of the hole is sufficient to accommodate the length of the planned implant.
An x-ray may be needed.
In some cases, the positioning of a dental implant may be close to important
anatomical structures (nerves, blood vessels, neighboring teeth).
If so, the dentist may need to take an x-ray of the implant site while the alignment pin is in position so they can evaluate its relationship to them.
Skip directly to Part 2 of the implant procedure. >>
What types of anesthesia are used for dental implant surgery?
Administering a local anesthetic.
a) Local Anesthetic.
A local anesthetic (Novocaine, more likely lidocaine) is usually all that's needed for a person's implant procedure.
"Locals" are administered by way of giving an injection (a "shot"). This is the same technique that's used to numb teeth for extractions and fillings.
Related page: Will my dental injection hurt?
Sedation is an option.
For patients who have anxiety about their proposed surgery, a decision might be made to use conscious sedation technique during their procedure so they are more relaxed. (The use of a local anesthetic is still required.) Here's more information: Conscious Sedation.
b) General Anesthesia.
Some implant cases may benefit from the use of general anesthesia. With this technique, a medication is used that places the patient in a state of deep sleep. (One where the patient is unable to react to stimuli.)
c) What type of anesthesia should be used for your surgery?
A decision about anesthesia typically hinges on factors such has case difficulty and expected treatment time. Here are some examples:
- For simple dental implant surgeries, such as the placement of one or two implants, the use of a local anesthetic, alone, is probably all that's needed.
- For more complex cases, and those requiring longer surgical times, both the patient and the surgeon may benefit from the use of conscious sedation or general anesthesia technique.
Menu for topic Tooth Implants -
- Dental implant basics.
- What are they? / Types, Components / Contraindications for placement.
- Implants vs. Root Canal.
- Choosing between the two. / Comparative success rates.
- Assorted FYI facts about dental implants.
Related topics -
- Dental Crowns (The "tooth" that goes on an implant.)