NCT07703553

Brief Summary

The main purpose of this study is to find out which pre-treatment method works best to reduce pain from dental anesthesia injections in adult patients. Researchers will compare four different approaches: Topical numbing spray (10% lidocaine) Brief cold application (cryotherapy) A combination of both cold application and cooled numbing spray A control group Participants who need a standard local anesthesia injection for their dental treatment will be randomly assigned to one of these four groups. Right after the needle insertion, participants will rate their pain level using a simple visual scale, and their physical reactions will also be observed and scored by the researchers.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
192

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Feb 2026

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

February 23, 2026

Completed
4 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 1, 2026

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2026

Completed
7 days until next milestone

First Submitted

Initial submission to the registry

July 8, 2026

Completed
6 days until next milestone

First Posted

Study publicly available on registry

July 14, 2026

Completed
Last Updated

July 14, 2026

Status Verified

July 1, 2026

Enrollment Period

4 months

First QC Date

July 8, 2026

Last Update Submit

July 8, 2026

Conditions

Keywords

Dental AnesthesiaCryotherapyTopical Anesthesia

Outcome Measures

Primary Outcomes (1)

  • Pain intensity during initial needle insertion (VAS)

    Subjective pain levels will be assessed by participants using a Visual Analog Scale (VAS) ranging from 0 to 10 mm. Higher scores indicate greater pain.

    During the initial local anesthesia needle insertion.

Secondary Outcomes (1)

  • Objective pain assessment using Sound-Eye-Motor (SEM) scale

    During the initial local anesthesia needle insertion.

Study Arms (4)

Topical Anesthetic Spray

EXPERIMENTAL

Application of 10% lidocaine spray to the oral mucosa before local anesthesia.

Drug: 10% lidocaine spray

Cryotherapy

EXPERIMENTAL

Application of an ice pen to the oral mucosa for 60 seconds before local anesthesia.

Other: Ice Pen (Cryotherapy)

Combination Arm Type: Experimental

EXPERIMENTAL

Application of an ice pen for 60 seconds followed by 10% lidocaine spray before local anesthesia.

Drug: 10% lidocaine sprayOther: Ice Pen (Cryotherapy)

Control

NO INTERVENTION

Standard local anesthesia injection without any pre-anesthetic intervention.

Interventions

Topical application of 10% lidocaine spray to reduce injection pain.

Combination Arm Type: ExperimentalTopical Anesthetic Spray

Pre-cooling the injection site using an ice pen for 60 seconds.

Combination Arm Type: ExperimentalCryotherapy

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Adults aged between 18 and 65 years. Systemically healthy individuals classified as ASA I or II. Patients presenting to the Harran University Faculty of Dentistry Hospital who require local anesthesia during dental treatment. Treatment plan requiring mandibular block anesthesia, anterior/posterior infiltration, or palatal infiltration. No regular use of analgesics (NSAIDs, paracetamol, etc.) within the last 7 days. No history of allergy to cold application or topical anesthetics.

You may not qualify if:

  • Regular use of analgesics (NSAIDs, paracetamol, etc.) within the last 7 days. Chronic pain syndrome, migraine, or systemic diseases requiring continuous use of analgesics. Pregnancy or lactation. Presence of active lesions in the oral mucosa, severe periodontal infection, or pathology at the injection site. History of allergy to topical gel or cold application. Psychiatric disorders or conditions preventing compliance with dental treatment.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Harran University Faculty of Dentristry,Departman of Endodonti

Sanliurfa, Outside of the US, 63300, Turkey (Türkiye)

Location

Related Publications (1)

  • 1. Chandrasekaran, J., et al., Efficacy of painless injection technique-Vibraject-Clinical trial in Chennai, India. 2014. 2. Kumar, M., R. Chawla, and M. Goyal, Topical anesthesia. Journal of Anaesthesiology Clinical Pharmacology, 2015. 31(4): p. 450-456. 3. Ghaderi, F., S. Banakar, and S. Rostami, Effect of pre-cooling injection site on pain perception in pediatric dentistry:"A randomized clinical trial". Dental research journal, 2013. 10(6): p. 790. 4. Aminabadi, N.A. and R.M.Z. Farahani, The effect of pre-cooling the injection site on pediatric pain perception during the administration of local anesthesia. The journal of contemporary dental practice, 2012. 10: p. 43-50. 5. Lakshmanan, L. and V. Ravindran, Efficacy of cryotherapy application on the pain perception during intraoral injection: a randomized controlled trial. International Journal of Clinical Pediatric Dentistry, 2021. 14(5): p. 616. 6. Wiswall, A.T., Palatal anesthesia: comparison of four techniques for decreasing injection discomfort. 2011.

    RESULT

MeSH Terms

Conditions

Pain

Interventions

Cryotherapy

Condition Hierarchy (Ancestors)

Neurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Therapeutics

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
SUPPORTIVE CARE
Intervention Model
PARALLEL
Model Details: This is a randomized, parallel-group clinical trial. Participants are randomly assigned to one of four independent groups: 1) topical anesthetic spray group, 2) cryotherapy (cold application) group, 3) combination group (cryotherapy followed by topical spray), and 4) placebo control group. Each participant receives only the specific pre-anesthetic intervention assigned to their group before the administration of standard local dental anesthesia.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant Professor

Study Record Dates

First Submitted

July 8, 2026

First Posted

July 14, 2026

Study Start

February 23, 2026

Primary Completion

July 1, 2026

Study Completion

July 1, 2026

Last Updated

July 14, 2026

Record last verified: 2026-07

Data Sharing

IPD Sharing
Will not share

Individual participant data (IPD) will not be shared to maintain patient confidentiality and privacy, in strict accordance with the informed consent form approved by the local ethics committee.

Locations