Clinical Outcomes Maxilla: Buffered 1% Lidocaine vs. Non-buffered 2% Lidocaine

University of North Carolina (UNC)

Status: Completed

Conditions: Anesthesia

Treatments: Drug: Lidocaine

Study type: Interventional

Funder types: Other

Identifiers

NCT02747186

16-0068b

Details and patient eligibility

About

Anecdotal data suggest that the buffered form of the local anesthetic is more potent at equal dosages, and a lower dosage of the buffered drug might be used with an effect equal to higher dosage not buffered. Clinical data are needed to confirm these anecdotal data. No published data exist comparing buffered local anesthetics at lower drug concentrations to current dosages commonly used in dental and oral surgical procedures

Full description

Specific Aims:

Compare clinical depths of pulpal anesthesia for maxillary molar and canine teeth at 30min intervals post injection after maxillary field block anesthesia with buffered 1% lidocaine with 1/100,000 epinephrine as compared to non-buffered 2% lidocaine with 1/100,000 epinephrine.

Hypotheses:

No differences exist in anesthetic depth for pulpal anesthesia after intraoral injection for maxillary field block anesthesia between buffered 1% lidocaine with 1/100,000 epinephrine as compared to non-buffered 2% lidocaine with 1/100,000 epinephrine.

Study Time Frame: 6 months: Month One Recruit 24 volunteers as subjects, Prepare case-books. Months Two-Three Clinical Study. Months Four-Five Analyze Lab data. Month Six Prepare Abstracts, Papers Methods: Blinded, Randomized Clinical Design, Recruit subjects with Institutional Review Board approved consent at University of North Carolina. Subjects will serve as their own controls in a cross-over AB/BA study design which is uniform within sequences, uniform within periods, and balanced. Randomized subjects to be injected orally for maxillary field block (Posterior alveolar, Anterior alveolar, Palatal sensory nerves) alternatively with 4cc of buffered 1% lidocaine with 1/100,000 epinephrine and 4cc non-buffered of 2% lidocaine with 1/100,000 epinephrine.

Assessment: pre, and post-anesthetic administration for pulpal anesthesia with cold, electronic pulp test at maxillary molar and canine at 30 minute intervals.

Enrollment: 24 patients

Sex: All

Ages: 18 to 30 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• American Society of Anesthesiologists Risk Classification I Willingness to participate in two sessions

Exclusion criteria

• Allergy to lidocaine class of anesthetic drugs Local anesthetic drug use in past week Current symptoms teeth or oral mucosa

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Crossover Assignment

Masking: Double Blind

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24 participants in 2 patient groups

Buffered 1% lidocaine

Active Comparator group

Description:

In week One each subject would receive the anesthetic, 5cc, to block the Posterior alveolar, Anterior alveolar, Palatal nerves.Maxillary molar and canine tested for pulpal anesthesia. At least a week later, injections for the maxillary field block would involve the alternate local anesthetic combination. Maxillary molar and canine tested for pulpal anesthesia.

Treatment:

Drug: Lidocaine

Non-Buffered lidocaine

Active Comparator group

Description:

In week One each subject would receive the anesthetic, 5cc, to block the Posterior alveolar, Anterior alveolar, Palatal nerves. Maxillary molar and canine tested for pulpal anesthesia. At least a week later, injections for the maxillary field block would involve the alternate local anesthetic combination. Maxillary molar and canine tested for pulpal anesthesia.

Treatment:

Drug: Lidocaine