Effect of Vibrasthetic Device on Pain Reduction During Local Anesthesia in Pediatric Patients

Effect of Vibrasthetic Vibration Device on Pain Reduction During Local Anesthesia in Pediatric Patients: A Randomized Clinical Study

The goal of this clinical trial is to test if children aged between 6 and 14 years who are receiving a dental injection will feel less pain by using a vibration device applied to the injection site during the injection compared to vibrating the lip using only the researcher's hands without using the vibration device. It will also test if this device makes them feel less anxious during the injection. The main question it aims to answer is:

Does using the Vibrasthetic device make dental injections more comfortable for children? Researchers will compare the effect of using this vibration device versus using their hands for manual vibration of the lip in the same child.

Participants will:

• Experience one method of vibration during their visit to the dentist (either the vibration device or manual vibration).
• then after 2 weeks they will go to the same dentist again and experience the other method of vibration.
• Receive the dental treatment they need in both visits. Participants will be asked to rate the pain they felt after the injection. This will be done by the participants choosing one of 6 pictures we will show them. Each picture explains the level of the pain they felt, and each picture has a score. We will score the pain the participants felt by looking at which picture they chose to describe their pain from the injection.

Study Overview

• Status: Not yet recruiting
• Conditions: Healthy; Behavior Management
• Intervention / Treatment: Device: Vibrating device; Procedure: Manual vibration

Detailed Description

Each participant will start their dental appointment by them sitting on a chair beside the dental chair and having their heart rate recorded by a pulse oximeter for baseline comfort level. They will be randomly assigned to either receive the vibration using the Vibrasthetic vibration device or by the dentist researcher manually vibrating the participant's lip during the injection. Topical anesthesia will be applied on the injection site and then they will receive the dental injection along with experiencing vibration in the area of the dental injection administered. Immediately after the injection, the participant will rate the pain intensity felt during the injection using validated Pain Scale (Wong-Baker). During the injection, a separate researcher, called the monitor, will monitor the participant's pain using the FLACC scale (Face, Legs, Activity, Cry, Consolability). Also, the monitor will record the participant's behavior using the Frankl scale, after which the participant will receiver their needed dental treatment. In the following visit, the participant will receive the other vibration method before their dental treatment with the recording of the same metrics by the researchers.

• Study Type: Interventional
• Enrollment (Estimated): 22
• Phase: Not Applicable

Contacts and Locations

• Study Contact: Name: Mariam B Aldajani, Master of Dental Science (MDS); Phone Number: 00966-567808848; Email: maldajani@kau.edu.sa
• Study Contact Backup: Name: Ghalia Y Bhadila; Phone Number: 00966-503637670; Email: gbhadila@kau.edu.sa

Study Locations

• Saudi Arabia
  • Jeddah, Saudi Arabia
    • King Abdulaziz University Dental Hospital
    • Contact: Mariam B Aldajani; Phone Number: 00966-567808848; Email: mariam.aldajani@gmail.com
    • Contact: Email: mariam.aldajani@gmail.com
    • Principal Investigator: Mariam B Aldajani
    • Sub-Investigator: Ghalia Y Bhadila

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Child
• Accepts Healthy Volunteers: Yes

Description

Inclusion Criteria:

• Children aged 6-14 years
• who have previously received local anesthesia
• and whose behavior, according to the Frankl scale, was positive or definitely positive
• and the absence of systemic diseases or known allergies to local anesthetic agents

Exclusion Criteria:

• Uncooperative children
• Children with special healthcare needs
• Children with conditions affecting pain perception

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Supportive Care
• Allocation: Randomized
• Interventional Model: Crossover Assignment
• Masking: Double

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Device; This group will experience receiving a dental injection while the operator uses a vibrating device (Vibrasthetic) to vibrate the injection site.	Device: Vibrating device; Battery powered, no need to replace vibrating head of the unit (only a plastic barrier is required to cover the device), not investigated before.
Active Comparator: Manual; Our study is a crossover study, so the participants will receive the dental injection while the operator manually vibrates their lip by holding the lip between their forefinger and thumb (control). The partcipants will be randomized, so phase I for the participants may be either the device or manual, and phase II will be the other method of vibration not used in phase I.	Procedure: Manual vibration; The operator will hold the participant's lip between their forefinger and thumb to manually vibrate the lip and hence vibrating the injection site.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Pain level	Measured using a pulse oxymeter placed on the participant's forefinger. Pulse rate will be recorded before the participant sits on the dental chair (while they are sitting on a chair next to the dental chair) to measure baseline heart rate. Then pulse rate will be recorded again immediately by the investigator monitoring the participant after the participant receives the injection.	This metric will be measured from the start of the appointment until the participant receives the injection. This will usually take around 10 minutes.
Pain level	Measured subjectively using an Arabic validated Wong-Baker Faces Pain Rating Scale by the participant choosing the picture that best describes the pain they felt. Minimum score is zero, maximum score is 10. Score of zero is the best outcome, which translates into "No hurt = no pain felt". Score of 10 is the worst outcome, which translates into "Hurts most = severe pain felt"	Participant will record the level of pain felt immediately after receiving the injection. This usually occurs around 10 mins after the start of the appointment.
Pain level	Measured objectively using Face, Legs, Activity, Cry, Consolability (FLACC) scale. The investigator monitoring the participant will record the participant's reaction while receiving the injection. Minimum score is zero, maximum score is 10. A score of zero is the best outcome, and a score of 10 is the worst outcome.	Participant pain will be recorded by the investigator monitoring the participant using the scale while the patient is receiving the injection. This usually occurs around 10 mins after the start of the appointment.

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Behavior and cooperation	Measured using Frankl behavior scale. The investigator monitoring the participant will record the participant's behavior during and after receiving the injection. Behavior can be scored as definitely negative (--), negative (-), positive (+), or definitely positive (++). A score of (--) is the worst outcome, and a score of (++) is the best outcome.	This metric is measured by judging the participant's behavior, and is recorded after the injection is given. This will take around 10 mins from the start of the appointment.

Collaborators and Investigators

• Sponsor: King Abdulaziz University
• Investigators: Principal Investigator: Mariam B Aldajani, King Abdulaziz University

Publications and helpful links

General Publications

• Ching D, Finkelman M, Loo CY. Effect of the DentalVibe injection system on pain during local anesthesia injections in adolescent patients. Pediatr Dent. 2014 Jan-Feb;36(1):51-5.
• Oliveira MA, Bendo CB, Ferreira MC, Paiva SM, Vale MP, Serra-Negra JM. Association between childhood dental experiences and dental fear among dental, psychology and mathematics undergraduates in Brazil. Int J Environ Res Public Health. 2012 Dec 17;9(12):4676-87. doi: 10.3390/ijerph9124676.
• Kadam, N. S., Hegde, A. M., & Sharma, A. (2024). Comparative evaluation of anxiety levels in children using distraction techniques: An assessment with Venham Picture Test and pulse oximeter. Journal of Scientific Dentistry, 12(2), 95-101

Study record dates

Study Major Dates

• Study Start (Estimated): December 26, 2025
• Primary Completion (Estimated): March 1, 2026
• Study Completion (Estimated): June 1, 2026

Study Registration Dates

• First Submitted: December 14, 2025
• First Submitted That Met QC Criteria: December 14, 2025
• First Posted (Estimated): December 29, 2025

Study Record Updates

• Last Update Posted (Estimated): January 2, 2026
• Last Update Submitted That Met QC Criteria: December 28, 2025
• Last Verified: December 1, 2025

More Information

Terms related to this study

• Keywords: Vibration; local anesthesia; pediatric dentistry; Vibrasthetic; child behavior management
• Other Study ID Numbers: 96-06-25

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No