
As I wrote last month, painless dentistry is the best marketing
tool dentists can possess. Even though many know how to
provide it, there are too many times when we don’t take the sufficient
amount of time to actually do it. And yet, there are still
various techniques that many dentists are not aware of. Here in
Part II, I want to share several more concepts that will allow all
of us to truly provide painless dentistry.
Mandibular Block & the Long, Long Buccal
When it comes to giving effective mandibular blocks, I used
to think that there were two categories of dentists: those who
admit missing most of their blocks and those who would lie
about anything. I admit it! For most of my career I have been
frustrated with one of the most stress-related dilemmas in dentistry.
There are not many things worse than putting the patient
through needless discomfort if only for that brief second when
they realize they are not completely numb. We peel the patient
off the ceiling and re-anesthetize. That’s probably the number one
thing that gives dentistry a bad name and creates true dental
phobics. I know most patients, including myself, are always
bracing for that quick zing of pain that we hope will never come.
Not only do we lose from a public relations point of view, we
also lose tremendously from an efficiency point of view that literally
costs us plenty of production dollars. When we have to give
more anesthetic, it puts us behind, which in turn does not allow
us opportunities to work in emergencies or other procedures.
The secret to a successful mandibular block is to give a long,
long buccal. I’ll prove it to you this week. The next patient you
have who isn’t totally numb with your mandibular block, do the
following. Ask them if their lower lip and chin is numb. If it is,
then go back with about a half a carpule of anesthetic and give
the injection lateral and distal to the second molar while inserting
the needle 3/4 of an inch lateral to the outside border of the
mandible and aim the needle towards the angle of the mandible
(Fig. 1). As you’re giving it, you might sense that they are feeling
it if you do not go real slow. But, the good news is that if
they feel that injection, then you know your patient will be profoundly
numb within two or three minutes. If you’re having
trouble with your blocks, do yourself and your patients a favor
and give this technique a try.
Gow-Gates Injection
At my seminars I explain that I still have trouble with
mandibular blocks because many times I do not give the long,
long buccal right away because it can be an uncomfortable injection.
Several doctors have convinced me to start doing the Gow-Gates injection technique. I’ve come to find out that I can miss
that injection almost as often as the conventional mandibular
block injection! Well, not quite as often. I’m getting better with
it and prefer it to the conventional block.
This block is named after the Australian dentist named Dr.
George A.E. Gow-Gates who invented this technique in the mid
1970s. Unlike the mandibular block, the path the needle traverses
during a Gow-Gates block contains much less muscle tissue
than is traversed by the needle in a standard mandibular
block, and thus there is little release of bradykinins which are the
chemicals which cause the aching that patients feel when receiving
a mandibular block. Furthermore, the tissue through which
the needle passes contains no nerve receptors, and thus there is
little direct pain during the injection. It is not uncommon for
patients to remark that they felt nothing during the injection.
The area where the Gow-Gates is delivered is less vascularized
than the area adjacent to the location of injection in a standard
mandibular block. Studies indicate that there is an 89-90
percent lower likelihood of giving an intra-vascular injection
using this technique. In addition, because of the lower vascularization
in the area, the anesthesia is less rapidly absorbed into
adjacent blood vessels prolonging the presence of the anesthesia
in the area, which means that mepivicaine without vasoconstrictor
may be used to greater and longer lasting effect using the
Gow-Gates. Some users of this technique recommend that no
vasoconstrictor be used at all.
Finally, the Gow-Gates anesthetizes the nerve trunk before it
splits into its three main branches; the lingual branch, the buccal
branch and the alveolar branch. Thus the Gow-Gates delivers
three shots in one. Here’s the technique:
- With the patient lying fully reclined in the chair, have the
patient open his/her mouth as wide as possible. This technique
is not possible if the patient is not able to open wide
enough to allow the condyles to translate fully over the articular
eminences.
- Place your thumb in the patient’s mouth retracting the
cheek. The thumb should be relatively close to the site of the
entry point of the needle noted in Figure 2.
- Place the middle finger of the same hand over the intertragal
notch. This landmark is easily felt with the finger. Thus
the hand is held in a “C” with the thumb inside the mouth
retracting the cheek and the middle finger outside the
mouth placed firmly over the intertragal notch (Fig. 3).
- Using a long 27-gauge needle, and holding the handle of the
syringe at about the level of the lower premolars, allow the
needle to enter the buccal mucosa just distal and apical to
the tuberosity. (See the arrow in the intra-oral image on the
previous page.)
- Now aim the tip of the needle toward the intertragal notch.
This is fairly easy because you can feel the notch under your
middle finger, so in effect, you are simply aiming for your
finger! Keeping the middle finger in this position, and using
it as the aiming point makes giving the Gow-Gates block
easy and predictable.
- Proceed until the needle hits bone. The needle will enter
about two-thirds to three-quarters of its length before hitting
bone. If the needle does not hit bone, then you have
missed the target and should withdraw and try again, aiming
slightly laterally, or medially.
- Once the needle hits bone, aspirate and then inject the
entire carpule slowly.
- After withdrawing the needle, ask the patient to remain
open wide for about one minute after the shot.
(Acknowledgements to Dr. Martin Spiller, www.doctorspiller.com).

Septocaine
Septocaine is my preferred anesthetic and I use it in most situations.
It has a rapid onset, penetrates the tissues more profoundly, and has a duration time comparable to Lidocaine 2%.
Keep in mind that the maximum dose is less than other anesthetics:
seven cartridges verses 11 cartridges of Lidocaine 2% for
a 154 lb. healthy patient.
Because it is a more profound anesthetic, I rarely give a
palatal injection when doing an endo procedure or a crown prep
on upper teeth. And of course, operative procedures on teeth
anterior to the molars are done with just local infiltration.
Be aware that all 4% solutions are more prone to occurrences
of parasthesia. Therefore, if you are like most dentists
who routinely give two carpules for their mandibular blocks, I
wouldn’t recommend using Septocaine. When I give a Gow-Gates injection, I just use one carpule of Septocaine.
The Wand, Comfort Control System,
STA, etc.
Modern technology has brought many great innovations to
dentistry but I’m going to pass on these electronic anesthetic
delivery devices. I realize that many doctors love these painless
injection systems and wouldn’t give them up for anything. On
the other hand, I’ve known others who were willing to give
theirs away because they no longer use them.
These devices deliver anesthetic in a very slow monitored
manner. Yes, they work; but so does giving slow injections
with an interligament syringe. We seem to have too many
tubings and cords throughout our treatment rooms as it is. I
just can’t justify adding any more by incorporating these
devices along with the extra expense at around $2,000 a unit
times nine operatories.
Paroject Interligament Injections
The Paroject interligament syringe (available from KISCO)
has bailed me out numerous times over the last 30 years as a last
resort for anesthetizing those really difficult “hot” teeth. There
are a variety of these syringes on the market and they all work by
dispensing anesthetic into the sulcus under pressure generated
by the special design of the syringe. It forces the anesthetic down
the PDL and numbs the tooth instantly while avoiding the typical
numb lip symptoms.
The Paroject syringe design is much less threatening than
the other pistol grip interligament syringes (Fig. 4). It works 99 percent of the time for those difficult situations,
and is ideal when you need anesthesia quickly. Many
doctors use interligament anesthesia as their primary mode
for anesthetizing their patients for shorter appointments due
to its immediate effectiveness.
The X-Tip
In very rare situations when even my Paroject won’t anesthetize
a difficult tooth, the X-Tip does the job. This is an
intra-osseous injection that works 100 percent of the time. It
is very easy to use once you get over the apprehension of
injecting into the bone. You first give a little local anesthetic
in the area you plan to insert the drill that will perforate the
bone. Insert the latch type perforator drill into your handpiece
and run it full speed while applying pulsating pressure
until you feel it drop into the cancellous bone just distal to
the tooth that you will be working on. After removing the
handpiece, a button with a sleeve is left in the bone. Now,
you can easily use that as a guide to insert the short syringe
needle. You don’t have to search around to find the hole that
you prepared. Then, you inject about a half a carpule slowly.
The area is immediately profoundly numb, and you can go to
work right away!
Endo Ice or Component Cooler
for Palatal Injections
Go to Radio Shack and purchase several cans of
Component Cooler. It contains the same exact ingredients as
Endo Ice yet for half the price. Spray it on a cotton tip applicator
and place on the palate at the injection site for about five
seconds. After the tissue blanches white, you can give a more
comfortable injection. Many patients don’t feel anything at all
with it. Give it a try!
We have many options available to us today to help provide
pain-free dentistry to our patients. When we do this, the
patients benefit and so does our bottom line. Find the right
combination of analgesic systems that fit your particular
office needs and take care of your patients to the highest level
that is possible!
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Dr. Joe Steven graduated from Creighton Dental School in 1978 and has been in solo practice in Wichita, Kansas up until June 2007 at which time his daughter, Dr. Jasmin Rupp, joined him. He is president of KISCO, a dental products marketing company, providing “new ideas for dentistry,” and is the editor of the KISCO Perspective Newsletter. Dr. Steven along with Dr. Mark Troilo present “The $1,000,000 Staff" & the “Team Dynamics” seminars. Dr. Steven also presents three other seminars: “Efficient-dentistry,” “Efficient-prosthetics” and “Efficient-endo.” Dr. Steven also provides the KISCO Select Consulting Program to dentists in the form of a monthly audio cd recording. (Contact info: jsteven@kiscodental.com, 800-325-8649, www.kiscodental.com) |