Periodontal Ligament Injections: A Review - L0758


About Course #L0758

Release Date: July 11, 2016

Expiration Date: December 31, 2019

The ability to obtain profound local anesthesia is essential for the successful completion of restorative procedures as well as for the success of oral surgery, periodontal surgery, and endodontic procedures. However, local anesthesia is not always initially successful. There is a high rate of failure with the conventional inferior alveolar nerve block, a technique in which teeth of the right or left mandible are anesthetized for dental procedures. The indirect and direct techniques that are most commonly employed to locate the inferior alveolar nerve are ineffective in achieving complete mandibular anesthesia in approximately 15% to 30% of cases.

This basic-level course describes periodontal ligament injection techniques for administering local anesthetics to provide pulpal anesthesia when conventional infiltration and regional block methods are unsatisfactory or inadequate. The indications and contraindications for periodontal ligament injections are discussed in addition to factors influencing the duration and efficacy of periodontal ligament anesthesia and potential postoperative side effects.

AGD Subject Code: 730

Course Objectives

  • Describe the process and mechanism of action involved in injecting anesthesia into the periodontal ligament.
  • List the indications for periodontal ligament injections.
  • Recognize the advantages and disadvantages of periodontal ligament anesthesia.
  • Identify the contraindications to periodontal ligament injections.
  • Discuss the duration and efficacy of periodontal ligament anesthesia.
  • Describe site preparation and injection techniques.
  • Identify postoperative effects of periodontal ligament anesthesia.

Western Schools designates this activity for 3 continuing education credits.

About the Author(s)

Mark J. Szarejko, DDS, FAGD, received a bachelor's degree in biology from St. John Fisher College in Rochester, New York, and a DDS from the State University of New York at Buffalo in 1985. He has been a Fellow of the Academy of General Dentistry since 1994 and a Certified Correctional Healthcare Professional since 2007. Dr. Szarejko has more than 30 years of dental experience in New York and Florida. He is currently staff dentist at the Hillsborough County Jail in Tampa, Florida, and has been an examiner for the State of Florida dental and dental hygiene examinations since 1994. Dr. Szarejko has presented nationally on correctional healthcare and has authored more than 20 continuing education courses.

Course Disclosures

  • Courses must be completed on or before the expiration date noted in the course description above.
  • You must score 75% or higher on the final exam and complete the course evaluation to pass this course and receive a certificate of completion.
  • Through our review processes, Western Schools ensures that the course content is presented in a balanced, unbiased manner and is free from commercial influence. It is Western Schools' policy not to accept commercial support.
  • All persons involved in the planning and development of this course have disclosed no relevant financial relationships or other conflicts of interest related to the course content.
  • There are no prerequisites for this course.
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