Investigating the Effect of Educational Models on Improving Local Anesthesia Injection by Dental Students

"Investigating the Effect of Using Educational Models on the Preparedness and Performance of Dental Students During Inferior Alveolar Nerve Block Injection"

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

IRCT

Registry ID

IRCT20250704066371N1

Enrollment

Registered

2025-07-19

Start date

2025-08-23

Completion date

Unknown

Last updated

2025-08-19

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

Conditions

Inferior alveolar anesthesia injection.

Interventions

Intervention 1: Intervention group: In this group, students practice using educational models (Hossbm brand, Injection HTH7 model, manufactured in Iran) before performing their first local anesthesia

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Dental students admitted in the year 1401 (2022–2023)

Exclusion criteria

Exclusion criteria: Having any prior experience in performing local anesthesia injections

Design outcomes

Primary

Measure	Time frame
Preparedness score: Score from a 6-item preparedness questionnaire (Likert scale 6–30),. Timepoint: completed before practice. Method of measurement: Questionnaire adapted from Wong et al.;Skill scoreDefinition: Score from a 7-domain skill checklist (maximum score: 14), completed by a supervisor during the first injection. Timepoint: During injection. Method of measurement: Checklist adapted from Knipfer et al.;Confidence scoreDefinition: Score from a 5-item self-assessment (range: 5 to 25), completed by the student after injection. Timepoint: After injection. Method of measurement: Questionnaire adapted from Brand et al.;Anxiety score Definition: Score from a 7-item ISAR-based anxiety questionnaire (range: 1 to 7), completed before injection. Timepoint: Before injection. Method of measurement: ISAR questionnaire.;Injection successDefinition: Qualitative evaluation of injection success 20 minutes after the procedure, based on sharp/blunt test and reported numbness of lips and tongue. Timepoint: 20 minutes after injection. Method of measurement: Sharp/blunt test.	—

Measure

Time frame

Preparedness score: Score from a 6-item preparedness questionnaire (Likert scale 6–30),. Timepoint: completed before practice. Method of measurement: Questionnaire adapted from Wong et al.;Skill scoreDefinition: Score from a 7-domain skill checklist (maximum score: 14), completed by a supervisor during the first injection. Timepoint: During injection. Method of measurement: Checklist adapted from Knipfer et al.;Confidence scoreDefinition: Score from a 5-item self-assessment (range: 5 to 25), completed by the student after injection. Timepoint: After injection. Method of measurement: Questionnaire adapted from Brand et al.;Anxiety score Definition: Score from a 7-item ISAR-based anxiety questionnaire (range: 1 to 7), completed before injection. Timepoint: Before injection. Method of measurement: ISAR questionnaire.;Injection successDefinition: Qualitative evaluation of injection success 20 minutes after the procedure, based on sharp/blunt test and reported numbness of lips and tongue. Timepoint: 20 minutes after injection. Method of measurement: Sharp/blunt test.

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Countries

Iran (Islamic Republic of)

Contacts

Public ContactDr. Mehdi Sadeghi

Esfahan University of Medical Sciences

mh.sadeghi@dnt.mui.ac.ir+98 31 3668 0048

Outcome results

None listed

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