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Local AnesthesiaNCT05473819

Effectiveness of Sodium Bicarbonate Buffered Anaesthetic Solution on Pain During Injection

A study testing Buffered Local Anesthesia and Conventional Unbuffered Local Anesthesia in people with Local Anesthesia, run by Alexandria University at 1 site in Egypt.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

This study will test the effectiveness of addition of Sodium Bicarbonate as a buffering agent to the anaesthetic solution on minimizing the pain of injection and increasing the onset time and potency of the anaesthetic solution in children Read more about this study

Who is it for?
Ages 5 to 7 yearsHealthy volunteers can take part
Conditions the study is for
Local Anesthesia
What is being tested?
Buffered Local Anesthesia and Conventional Unbuffered Local Anesthesia
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
27 participants
Where
1 siteEgypt
Study dates
15 May 2022to 1 Sep 2022
Phase
Interventional
Are there results?
None posted in the registry

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 5 to 7 years
  • All sexes
  • Healthy volunteers accepted
  • Child

Who may be able to join

  • Age range from 5 - 7 years.
  • Children free of any systemic disease or special health care need (ASA I).
  • No previous bad dental experience.
  • Positive or definitely positive behaviour during preoperative assessments according to the Frankl Rating Scale (score 3 or 4)
  • Patients whom their lower primary molars bilaterally are indicated for pulpotomy.
  • Patients whom their parents will give consent to participate.
  • Patients who give multiple reliable responses while using the transcutaneous electric nerve stimulator device.

Who cannot join

  • Active sites of pathosis in area of injection that could affect anaesthetic assessment.
  • History of allergy to local anaesthesia.
  • Root resorption affecting more than one third of the root length.
  • Fractured crowns due to trauma.
  • Clinical signs and symptoms of pulp degeneration such as swelling or sinus tracts
  • Radiographic evidence of periapical or interradicular radiolucency
Show all 9Show fewer
  • Non restorable crowns.
  • Signs of mobility.
  • Ankylosed roots.

Trial locations and contacts

1 site in 1 country.

Egypt1 site
  • Kholoud Mamdouh Ahmed Nour

    Alexandria, 00203

Other trials in Egypt

About this study

Official title: Effectiveness of Sodium Bicarbonate Buffered Anaesthetic Solution on Pain During Inferior Alveolar Nerve Block in Children : a Randomised Controlled Clinical Trial

This study will test the effectiveness of addition of Sodium Bicarbonate as a buffering agent to the anaesthetic solution on minimizing the pain of injection and increasing the onset time and potency of the anaesthetic solution in children

Read the detailed description

27 healthy cooperative children will be enrolled in the study after taking their guardians' informed consent.

The study design will be a split mouth design where each patient will be received buffered anaesthetic solution (8.4% sodium bicarbonate will be added to the anaesthetic solution in ratio 1:19) in one side and conventional anaesthetic solution (4% articaine HCL with 1:1000000 epinephrine) in the other side.

The pain during injection for each patient in both sides will be then compared using objective and subjective methods.

The onset time of the anaesthesia in both sides will also be compared for each patient using Transcutaneous electric nerve stimulator device (TENS)

The results will be collected and mentioned.

Being tested
Buffered Local Anesthesia, Conventional Unbuffered Local Anesthesia
Keywords
buffered, sodium bicarbonate, inferior alveolar nerve block, pain, pulpotomy, articaine
Medical subject headings
Pain

What participants receive

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

  • Buffered Local AnesthesiaDrug

    Buffered local anesthesia will be administered after being previously prepared just before the injection time.

    Buffering Local Anesthetic Solutions Using 8.4% Sodium Bicarbonate in a 19:1 Ratio: Using the "REMOVE AND REPLACE hand buffering method"

    -Under sterile conditions, 0.09 mL of local anesthetic solution will be removed from the cartridge using a 0.5 mL syringe with a 28- gauge, 0.5-inch needle (Kendall Monoject Insulin Syringe [Tyco Healthcare, tyco.com] lot number 027501). Using a separate unused syringe, 0.09 mL of the commercially available 8.4% sodium bicarbonate will be removed from the 50 mL vial and immediately injected into the local anesthetic cartridge. The cartridge will be inverted 5 times to mix the solution, and no precipitation will be present.

  • Conventional Unbuffered Local AnesthesiaDrug

    The control group will receive the unbuffered conventional anaesthetic solution

Study groups in NCT05473819
Study groupRoleWhat they receive
Buffered Anaesthetic solutionExperimental8.4% sodium bicarbonate will be added to the 4% articaine HCL with 1:1000000 epinephrine carpule in ratio 19:1 the Articaine to the Sodium bicarbonate
Receives: Drug: Buffered Local Anesthesia
Conventional Anaesthetic solutionActive comparator4% Articaine HCL with 1:1000000 epinephrine Anaesthetic carpule
Receives: Drug: Conventional Unbuffered Local Anesthesia

What is being measured

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

  1. Pain during inferior alveolar nerve block injection

    Sound, Eye, Motor (SEM) Scale (Appendix II), will be used as an objective method for pain assessment. It comprises the following parameters: (1) Sound, (2) Eye, (3) Motor. For each child, the sounds, eye symptoms and body movements will be evaluated by the operator using the recorded video tapes. The slightest manifestations of the sound, eyes, or motion of the patient is graded in four levels: comfort, mild, moderate, and severe discomfort, and subsequently given grades 1 (comfort), 2 (mild discomfort), 3 (moderate discomfort), and 4 (severe discomfort), respectively. SEM score will be calculated by summing the three grades of the parameters

    Measured: during local anesthesia administration

Secondary outcomes (1)
  1. the onset time of the Anaesthesia

    Current Perception Threshold (CPT) detection using Transcutaneous Electric Nerve Stimulator (TENS) device. CPT baseline value is the lowest intensity at which the patient first report feeling the stimulus. It determines the Sensory Threshold (ST), which corresponds to the lowest current intensity capable of eliciting perception. The electrode will be placed on the proposed measuring site and the device will be turned on. The device will start the delivery of current at the lowest output intensity and then slowly increased until the patient reported feeling the stimulus. Patients will be instructed to state if they feel any sensation, at that time the delivery of electrical current will be terminated and CPT intensity will be recorded. Every 30 seconds after administration of anaesthesia, while set at the baseline CPT intensity recording for each patient, the electrode will be applied to the proposed measuring site on the anesthetized side, to detect the time of onset of anaesthesia.

    Measured: after local anesthesia administration

Timeline

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

  1. First posted26 Jul 2022
  2. Study start15 May 2022
  3. Primary completion1 Jun 2022
  4. Study completion1 Sep 2022 (estimated)

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 N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Model description
Split Mouth Design
Masking
Triple blind
Who is masked
Care provider, Investigator, Outcomes assessor
Enrolment
27 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05473819
Sponsor's protocol ID
2890
Status last verified
Jan 2022
First submitted
1 Jul 2022
Last updated
26 Jul 2022
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided: the results and the outcomes

Questions about this trial

What is this clinical trial studying?

A study testing Buffered Local Anesthesia and Conventional Unbuffered Local Anesthesia in people with Local Anesthesia, run by Alexandria University at 1 site in Egypt.

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 7 inclusion and 9 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: status not confirmed, as of the sponsor's last update on 26 Jul 2022. 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 Egypt. 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.

Are results available for this study?

Results are not available in the source record.

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?

Pain during inferior alveolar nerve block injection (time frame: during local anesthesia administration). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 26 Jul 2022.

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