A Study of the Effect of Time on Topical Anesthetic Efficacy.

July 13, 2006 updated by: University of Toronto
This is a study of the effect of time on the effectiveness of topical anesthetics in the mouth. The Null Hypothesis is: Regardless of the time of application over a 10-minute period, there is no difference in the clinical effectiveness of the topical anesthetic 5% lidocaine on (a) the pain of needle stick insertion and (b) the pain of local anaesthetic administration.

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Detailed Description

The study design will be a double blind randomized controlled split-mouth clinical trial. It is proposed to compare the effectiveness of the standard topical anesthetic 5% lidocaine with a placebo over the time period of 2, 5 and 10 minutes after application. The topical will be placed on the palatal soft tissue where the perception of pain is the highest in the oral cavity. Both the pain of needle insertion and the pain of local anesthetic injection will be compared.

Study Type

Interventional

Enrollment

90

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Canada
    • Ontario
      • Toronto, Ontario, Canada, M5G 1G6
        • Recruiting
        • Faculty of Dentistry
        • Contact:
        • Principal Investigator:
          • Jasdev Bhalla, BDS

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 70 years (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  1. In good health (ASA 1 or ASA 2)
  2. Weight between 40-100kg, inclusive.
  3. Between ages 18-70, inclusive.
  4. Informed consent

Exclusion Criteria:

  1. ASA 3 or higher.
  2. History of allergy to sulfites, lidocaine or mepivacaine.
  3. Taking any analgesic 48hrs before testing, such as an NSAID, opioid, or acetaminophen.
  4. Pregnancy.
  5. Recent oral trauma.
  6. Lack of informed consent.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Educational/Counseling/Training
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: Double

What is the study measuring?

Primary Outcome Measures

Outcome Measure
pain

Secondary Outcome Measures

Outcome Measure
Heart rate

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

University of Toronto

Investigators

  • Principal Investigator: Daniel A Haas, DDS, PhD, University of Toronto

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

July 1, 2006

Study Completion

December 1, 2006

Study Registration Dates

First Submitted

July 13, 2006

First Submitted That Met QC Criteria

July 13, 2006

First Posted (Estimate)

July 17, 2006

Study Record Updates

Last Update Posted (Estimate)

July 17, 2006

Last Update Submitted That Met QC Criteria

July 13, 2006

Last Verified

July 1, 2006

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • UToronto

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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