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Anesthetic EffectivenessPhase 4NCT01567839

Testing the Anesthetic Effectiveness of Three Different Dental Local Anesthetics Injected Next to a Lower First Molar

A Phase 4 study testing Mandibular buccal Infiltration injection in people with Anesthetic Effectiveness, run by Ohio State University at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Infiltration (injecting next to the tooth) injections are common in dentistry and a number of studies have shown that articaine anesthetic, when injected next to the tooth as a supplemental injection, works very well following a typical inferior alveolar (lower jaw) nerve block. Read more about this study

Who is it for?
Ages 18 to 65 yearsHealthy volunteers can take part
Conditions the study is for
Anesthetic Effectiveness
What is being tested?
Mandibular buccal Infiltration injection
Could I receive a placebo?
No, everyone receives an active treatment
How many people
60 participants
Where
1 siteUnited States
Study dates
May 2012to May 2013
Phase
Phase 4
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 65 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • between the ages of 18 and 65 years.
  • in good health (ASA classification II or lower).
  • able to provide informed consent.

Who cannot join

  • allergy to articaine, lidocaine or prilocaine.
  • history of significant medical problems (ASA classification III or greater).
  • depression (taking tri-cyclic antidepressant medications to control).
  • have taken CNS depressants (including alcohol or any analgesic medications) within the last 48 hours prior to testing.
  • lactating or pregnant.
  • inability to give informed consent.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • The Ohio State University College of Dentistry, Postle Hall

    Columbus, Ohio, 43210

Other trials in United States

About this study

Official title: Anesthetic Efficacy of 4% Articaine With 1:100,000 Epinephrine, 4% Prilocaine With 1:200,000 Epinephrine, and 4% Lidocaine With 1:100,000 Epinephrine as a Primary Buccal Infiltration in the Mandibular First Molar.

Infiltration (injecting next to the tooth) injections are common in dentistry and a number of studies have shown that articaine anesthetic, when injected next to the tooth as a supplemental injection, works very well following a typical inferior alveolar (lower jaw) nerve block. No study has compared 4% articaine with 1:100,000 epinephrine, 4% prilocaine with 1:200,000 epinephrine, and 4% lidocaine with 1:100,000 epinephrine in mandibular (lower jaw) infiltration injections of the first molar. The purpose of this prospective, randomized, double-blind, crossover study is to compare the degree of anesthesia obtained from the three solutions as a primary infiltration injection next to the mandibular first molar. The investigators also will record the pain of injection and postoperative pain.

Read the detailed description

Using a crossover design, 60 adult subjects will receive three injections consisting of a primary mandibular first molar infiltration of 1.8 mL of 4% articaine with 1:100,000 epinephrine, 1.8 mL of 4% prilocaine with 1:200,000 epinephrine, and 1.8 mL of 4% lidocaine with 1:100,000 epinephrine in three separate appointments spaced at least one week apart. With the crossover design, 180 infiltrations will be given for the first molar and each subject will serve as his or her own control. Ninety infiltrations will be administered on the mandibular left side and ninety administered on the mandibular right side. The order of the three injections will be assigned randomly and the dentist and subject will be blinded about which anesthetic the subject is given. The anesthetics used in this study are not experimental. An electric pulp tester will be used to test the lower back teeth (molars and premolars) for anesthesia in 3-minute time intervals for a total of 60 minutes. The pain of injection and postoperative pain will be recorded in a survey. The data will be statistically analyzed.

Being tested
Mandibular buccal Infiltration injection
Keywords
degree of pulpal anesthesia obtained, primary infiltration in the lower first molar

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Mandibular buccal Infiltration injectionProcedure or surgery

Study groups in NCT01567839
Study groupRoleWhat they receive
4% LidocaineExperimental1.8 mL of 4% lidocaine with 1:100,000 epinephrine
Receives: Procedure: Mandibular buccal Infiltration injection
4% ArticaineExperimental1.8 mL of 4% articaine with 1:100,000 epinephrine
Receives: Procedure: Mandibular buccal Infiltration injection
4% PrilocaineExperimental1.8 mL of 4% prilocaine with 1:200,000 epinephrine
Receives: Procedure: Mandibular buccal Infiltration injection

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Successful Pulpal Anesthesia.

    Two consecutive 80/80 readings (no patient response) during 60 minutes of testing with an electric pulp tester.

    Measured: 60 minutes

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted30 Mar 2012 (estimated)
  2. Study startMay 2012
  3. Primary completionMar 2013
  4. Study completionMay 2013

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Allocation
Randomised
Intervention model
Crossover
Masking
Triple blind
Who is masked
Participant, Investigator, Outcomes assessor
Enrolment
60 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01567839
Sponsor's protocol ID
4% dental local anesthetics
Status last verified
Nov 2013
First submitted
28 Mar 2012
Last updated
1 Jan 2014
Data monitoring committee
No

Publications

  • Kanaa MD, Whitworth JM, Corbett IP, Meechan JG. Articaine buccal infiltration enhances the effectiveness of lidocaine inferior alveolar nerve block. Int Endod J. 2009 Mar;42(3):238-46. doi: 10.1111/j.1365-2591.2008.01507.x.

    PubMed 19228214
  • Kanaa MD, Whitworth JM, Corbett IP, Meechan JG. Articaine and lidocaine mandibular buccal infiltration anesthesia: a prospective randomized double-blind cross-over study. J Endod. 2006 Apr;32(4):296-8. doi: 10.1016/j.joen.2005.09.016. Epub 2006 Feb 17.

    PubMed 16554198
  • Robertson D, Nusstein J, Reader A, Beck M, McCartney M. The anesthetic efficacy of articaine in buccal infiltration of mandibular posterior teeth. J Am Dent Assoc. 2007 Aug;138(8):1104-12. doi: 10.14219/jada.archive.2007.0324.

    PubMed 17670879
  • Haase A, Reader A, Nusstein J, Beck M, Drum M. Comparing anesthetic efficacy of articaine versus lidocaine as a supplemental buccal infiltration of the mandibular first molar after an inferior alveolar nerve block. J Am Dent Assoc. 2008 Sep;139(9):1228-35. doi: 10.14219/jada.archive.2008.0338.

    PubMed 18762633
  • Corbett IP, Kanaa MD, Whitworth JM, Meechan JG. Articaine infiltration for anesthesia of mandibular first molars. J Endod. 2008 May;34(5):514-8. doi: 10.1016/j.joen.2008.02.042.

    PubMed 18436027
  • Abdulwahab M, Boynes S, Moore P, Seifikar S, Al-Jazzaf A, Alshuraidah A, Zovko J, Close J. The efficacy of six local anesthetic formulations used for posterior mandibular buccal infiltration anesthesia. J Am Dent Assoc. 2009 Aug;140(8):1018-24. doi: 10.14219/jada.archive.2009.0313.

    PubMed 19654255

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Mandibular buccal Infiltration injection in people with Anesthetic Effectiveness, run by Ohio State University at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 1 Jan 2014. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 1 Jan 2014). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Successful Pulpal Anesthesia. (time frame: 60 minutes). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01567839, which also lists 6 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 1 Jan 2014.

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