Dental News - The STA-intraligamentary injection vs. the PDL

Eugene R. Casagrande, DDS, FACD, FICD

Wed. 8 December 2010

save

There are major differences that should be considered between the traditional PDL injection, delivered with the dental syringe, the Ligmaject or the Peri-press, and the STA (single tooth anesthesia) administered intraligamentary injection (STA-II).

Some of the differences are as follows:

The PDL is usually the injection of last resort when the mandibular block fails. The STA-II should be the primary injection for any maxillary or mandibular tooth and can replace mandibular blocks and supraperiosteal infiltrations, which cause collateral numbness to the patient’s lip, face and tongue.
With the PDL, a small amount of anesthetic is injected under excessive pressure, which produces a short duration of anesthesia. The STA-II delivers a larger volume of anesthetic under minimal pressure resulting in longer duration (40 minutes).
The PDL is difficult to administer and the flow rate depends on manual pressure. The STA-II is easy to administer, and the flow rate is computer-controlled, consistent and below the patient’s pain threshold.
The PDL is painful on delivery, results in tissue damage and bone resorption, and can cause post-operative discomfort. The STA-II is a comfortable injection, and a clinical study shows it causes no tissue damage or bone resorption and little or no post-op discomfort.

The STA, using dynamic pressure sensing, allows you to know when you have arrived at the correct site (the periodontal ligament space) for a successful intraligamentary injection; it also indicates if you have left the site and if the needle has been blocked by obstruction or pressure.

Check out the simple injection technique for the STA-II and more on the STAis4U.com website.

It’s easy to do. Try it, you’ll like it. And so will your patients.

Eugene R. Casagrande, DDS, FACD, FICD, is director of international and professional relations at Milestone Scientific.

To post a reply please login or register

STA System keeps patients comfortable — even during the injection itself

SAN FRANCISCO, CA, USA: When it comes to getting from here to there, who wants to ride around in a horse and buggy? And when it comes to delivery of ...

The sand, the sea and the ACP

The American College of Prosthodontists is taking Southwest Florida by storm from Wednesday through Saturday. The JW Marriott Marco Island will host this ...

The STA is essential for cosmetic dentistry

The STA Injection System, a computer-controlled local anesthetic delivery, or C-CLAD, is not only great for single tooth anesthesia, but is also very useful...

DentalVibe eliminates patient anxiety over the injection

If the folks at DentalVibe get their way, their device will revolutionize the way patients feel about going to the dentist. That’s because Dental Vibe...

Removing the pain and stress of dental injections

Integrating the VibraJect dental needle accessory into one’s dental practice and including it as an integral part of an established injection protocol...

Harris vs Trump: How the US election will affect dental mergers and acquisitions

With less than 30 days until candidates Donald Trump and Kamala Harris face off to become the 47th US president, there is a sense that the country, and ...

STA System offers an alternative to the mandibular block

With its Single Tooth Anesthesia (STA) System, Milestone Scientific is changing the way local anesthesia is being delivered today. Dr Mark Hochman, a ...

Trends in the US overdenture market

BURNABY, British Columbia, Canada: The US market for overdentures and implant-supported bridges can be broken down into the product categories of ...

Registration for the historic 160^th Midwinter Meeting is now open

CHICAGO, US: The Chicago Dental Society (CDS) has recently announced its speaker line-up for the upcoming 160th Midwinter Meeting, taking place at the ...

Employee vs. independent contractor: What’s the difference?

Whether an associate dentist is considered an employee or independent contractor could have certain tax and non-tax consequences for the owner of a dental ...

Education

Live webinar
Mon. 29 September 2025
9:00 AM EST (New York)