Risk Factors of Inferior Alveolar Nerve Block Failure: a Dental Student-centered Study

Inferior alveolar nerve block anesthesia is one of the most commonly used regional block anesthesia in dentistry. The factors that determine the success of this type of anesthesia which is applied so frequently, are not reported in the literature. It is to reveal and evaluate patient and dentist-based factors, especially in anesthesia applied by trainee dentists who have just learned this anesthesia block.

Study Overview

• Status: Completed
• Conditions: Anesthesia, Local

Detailed Description

In this study, the investigators are going to observe 200 IANB anesthesia in our clinic. The investigators will evaluate the class, right/left handed, gender and experience on inferior alveolar nerve block of dental student. The criteria the investigators will evaluate for the patient are as follows; gender, body mass index, ramus height, left/right side, and maximum mouth opening amount. The criterion for the success of anesthesia are lost lip sensation within 10 minutes, no complication related to anesthesia.

• Study Type: Observational
• Enrollment (Actual): 340

Contacts and Locations

Study Locations

• Turkey
  • Konya
    • Selçuklu, Konya, Turkey, 42250
      • Selcuk University, Dentistry Faculty

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 50 years (Adult)
• Accepts Healthy Volunteers: Yes

• Sampling Method: Probability Sample

Study Population

In this study, the investigators are going to observe 320 IANB anesthesia in our clinic, which is the Oral and Maxillofacial Surgery Department of Selçuk University.

Description

Inclusion Criteria:

• having an indication of mandibular first or second molar extraction,
• being between 18 and 50 years old,
• not having any nerve or nerve-related disease,
• having a mouth opening 35 millimeters and above,
• not having an infected or inflamed tooth for extraction,
• being cooperative,
• non-allergic to articaine
• being right-handed (for dental-students)
• being intern (for dental-students)

Exclusion Criteria:

• anesthesia-related complications,
• more than twice the needed needle insertion
• wishing to quit the study

Study Plan

How is the study designed?

Design Details

• Observational Models: Other
• Time Perspectives: Prospective

Number of groups / cohorts

1

Cohorts and Interventions

Group / Cohort
Observational Group; The investigators are going to observe the risk factors about inferior alveolar nerve block anesthesia.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Patrient-BMI index	Ask the patrients their weight and height then note that as their bmi index.This note guides us amount of bichat and how it affects the failure of block anesthasia.	after 5 minutes, patrients come to our clinic and sit on the dental unit.
Patrient-Height of mandibular ramus	measuring of mandibular ramus on panoromic radyography from mandibular angulus to condylar head.	after 5 minutes, patrients come to our clinic and sit on the dental unit.
Patrient-Gender	attending patrients sex	after 5 minutes, patrients come to our clinic and sit on the dental unit.
Patrient-Maximum mouth opening	before the anesthasia, make the patrients open their mouth maximum then measure it from lower incisors incisal edge to upper incisors incisal edge.	after 5 minutes, patrients come to our clinic and sit on the dental unit.
Gender	attending dental studens sex	after 5 minutes, patrients come to our clinic and sit on the dental unit.
Student-Class	attending dental students in which period for the explanation of their experiment level	after 5 minutes, patrients come to our clinic and sit on the dental unit.
Dental student-Mandibular nerve block experience	attending dental students in which period for the explanation of their experiment level	after 5 minutes, patrients come to our clinic and sit on the dental unit.
which side for the mandibular block anesthasia	Does the side of anesthesia according to the hand used affect its success?	after 5 minutes, patrients come to our clinic and sit on the dental unit.

Collaborators and Investigators

• Sponsor: Selcuk University
• Investigators: Study Chair: Gökhan Gürses, Selcuk University, Faculty of Dentistry

Publications and helpful links

General Publications

• Thangavelu K, Kannan R, Kumar NS. Inferior alveolar nerve block: Alternative technique. Anesth Essays Res. 2012 Jan-Jun;6(1):53-7. doi: 10.4103/0259-1162.103375.
• Kohler BR, Castellon L, Laissle G. Gow-Gates technique: a pilot study for extraction procedures with clinical evaluation and review. Anesth Prog. 2008 Spring;55(1):2-8. doi: 10.2344/0003-3006(2008)55[2:GTAPSF]2.0.CO;2.

Study record dates

Study Major Dates

• Study Start (Actual): February 27, 2023
• Primary Completion (Actual): July 18, 2024
• Study Completion (Actual): September 17, 2024

Study Registration Dates

• First Submitted: December 26, 2022
• First Submitted That Met QC Criteria: December 26, 2022
• First Posted (Actual): January 12, 2023

Study Record Updates

• Last Update Posted (Actual): September 19, 2024
• Last Update Submitted That Met QC Criteria: September 17, 2024
• Last Verified: September 1, 2024

More Information

Terms related to this study

• Keywords: anesteshia failure; mandibular nerve; dental student
• Other Study ID Numbers: Selcuk03

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No
• product manufactured in and exported from the U.S.: No