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Comparative Assessment of Mental/Incisive and Inferior Alveolar Nerve Block Anesthesia in Root Canal Treatment of Mandibular Premolars

Anesthetic Effectiveness of Mental/incisive Nerve Block Versus Inferior Alveolar Nerve Block in Mandibular I. and II. Premolars with Symptomatic Irreversible Pulpitis: a Randomized Clinical Trial

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06679660
Enrollment
120
Registered
2024-11-07
Start date
2023-02-20
Completion date
2024-09-15
Last updated
2024-11-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Mandibular Nerve, Mandibular Nerve Blocks, Mental Nerve Block, Premolars

Keywords

Inferior alveolar nerve block, local anesthesia, mental nerve block, pain, premolar

Brief summary

The goal of this clinical trial is to systematically compare the pain scores and anesthesia efficacy of IANB and MNB in the treatment of symptomatic mandibular first and second premolars. This study aims to address gaps in current evidence and clarify whether these anesthesia techniques differ in effectiveness and patient experience during endodontic procedures. The hypotheses include: (i) no difference in pain perception between IANB and MNB, (ii) no difference between first and second premolars with IANB, and (iii) no difference between first and second premolars with MNB.

Interventions

A single ampoule of 4% articaine was administered to a cohort of patients presenting with irreversible pulpitis in the first or second mandibular premolars, designated for Inferior Alveolar Block anesthesia via the mandibular foramen.

OTHERMental/Incisive Nerve Block (%4 Articaine)

A single ampoule of 4% articaine was administered to a cohort of patients presenting with irreversible pulpitis in the first or second mandibular premolars, designated for Mental or Incisive Nerve Block anesthesia via the mental foramen.

Sponsors

Cukurova University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
DOUBLE (Investigator, Outcomes Assessor)

Intervention model description

Single blinded randomized clinical study

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
Yes

Inclusion criteria

* Individuals classified as ASA 1 or ASA 2. * Age range of 18 to 65 years. * No known allergies to articaine or epinephrine. * Absence of facial paresthesia. * No use of analgesic medications within 6 hours prior to treatment. * No use of medications, such as tricyclic antidepressants or beta blockers, that may interfere with anesthesia. * No pathological conditions at the planned injection site. * Periodontal pocket depth of 3 mm or less. * Mandibular first or second premolars diagnosed with symptomatic irreversible pulpitis. * Teeth meeting Glickman's gingival health criteria upon periodontal examination. * Radiographically closed root apex with no detectable pathology. * Patients must be literate and able to comprehend the use of a pain scale to provide informed consent voluntarily.

Exclusion criteria

* Presence of systemic conditions contraindicating endodontic treatment. Age below 18 or above 65 years. * Pregnancy. * Documented allergy to articaine with 1:100,000 epinephrine. * Evidence of periapical pathology or radiolucency observed in radiographs. * Recent use of central nervous system depressants or analgesic medication within 6 hours prior to treatment. * Absence of reported lip numbness 10 minutes following IANB or MINB injection. Presence of a large restoration on the affected tooth.

Design outcomes

Primary

MeasureTime frameDescription
Numerical Rating ScaleFollowing anesthesia administration, a 10-minute waiting period was observed. Patients completed a Numerical Rating Scale immediately upon initiation of the endodontic cavity procedure and again after the start of pulp extirpation.The patients were asked to rate the pain experienced during endodontic access cavity preparation and pulp extirpation using a Numerical Rating Scale. The Numerical Rating Scale was printed on A4 paper, scaled to fit horizontally, with values from 0 to 10 displayed along a bar. The Numerical Rating Scale uses a 0 to 10 scale, with increments of one unit. Patients were instructed to mark '0' if they experienced no pain, select a value between 1 and 3 for mild pain, a value between 4 and 6 for moderate pain, and a value between 7 and 10 for severe pain.

Countries

Turkey (Türkiye)

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026