The effect of injection speed on the success of anesthesia in painful mandibular molars.

Effect of injection speed on the success of inferior alveolar nerve block in mandibular molars with symptomatic irreversible pulpitis

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

IRCT

Registry ID

IRCT20250309065004N1

Enrollment

100

Registered

2025-04-10

Start date

2025-05-05

Completion date

Unknown

Last updated

2025-07-21

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

Conditions

success of inferior alveolar nerve block

Interventions

Intervention 1: Intervention group 1: Rapid IANB injection group is performed within 15 seconds after aspiration. For IANB anesthesia injection in all patients, an aspirable syringe (Fattah Teb), a 27

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: patients who had a mandibular molar with symptomatic irreversible pulpitis no apical radiolucency on radiographs A healthy patient (ASA I)

Exclusion criteria

Exclusion criteria: Taking analgesics, anti-anxiety drugs, and corticosteroids Pregnancy Allergy to anesthetic drugs or any prohibition for injection of lidocaine containing epinephrine Drug addiction

Design outcomes

Primary

Measure	Time frame
Success rate of injection of inferior alveolar nerve block in mandibular molars with symptomatic irreversible pulpitis ?n each of the slow injection and rapid injection groups. Timepoint: During treatment if pain occurs. Method of measurement: Heft-parker visual analogue scale (HP-VAS).;The average intensity of injection pain in each of the slow injection and rapid injection groups after anesthetic injection. Timepoint: Immediately after injection. Method of measurement: Score obtained from Heft-parker visual analogue scale (HP-VAS).	—

Measure

Time frame

Success rate of injection of inferior alveolar nerve block in mandibular molars with symptomatic irreversible pulpitis ?n each of the slow injection and rapid injection groups. Timepoint: During treatment if pain occurs. Method of measurement: Heft-parker visual analogue scale (HP-VAS).;The average intensity of injection pain in each of the slow injection and rapid injection groups after anesthetic injection. Timepoint: Immediately after injection. Method of measurement: Score obtained from Heft-parker visual analogue scale (HP-VAS).

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Countries

Iran (Islamic Republic of)

Contacts

Public ContactSharareh Barati

Esfahan University of Medical Sciences

shararehb74@gmail.com+98 31 3668 0048

Outcome results

None listed

Source: IRCT (via WHO ICTRP) · Data processed: Feb 4, 2026