Trial Outcomes & Findings for Clinical Outcomes of Buffered 1% Lidocaine vs. Non-buffered 2% Lidocaine (NCT NCT02708433)

NCT ID: NCT02708433

Last Updated: 2018-09-04

Results Overview

Subject's Mandibular first molar teeth tested before anesthetic and every 30 minutes after for response to Cold and Electric Pulp Test as reported by subjects as a "yes" or "no."

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

23 participants

Primary outcome timeframe

Every 30 minutes up to 120 minutes total

Results posted on

2018-09-04

Participant Flow

Participant milestones

Participant milestones
Measure
Buffered 1% Lidocaine, Then Non-buffered 2% Lidocaine
At each treatment visit, participants were injected orally for mandibular block (inferior alveolar, lingual, buccal nerves). For this arm, participants first received Buffered 1% Lidocaine followed by a 1-week washout, then Non-buffered 2% Lidocaine.
Non-Buffered 2% Lidocaine, Then Buffered 1% Lidocaine
At each treatment visit, participants were injected orally for mandibular block (inferior alveolar, lingual, buccal nerves). For this arm, participants first received Non-Buffered 2% Lidocaine followed by a 1-week washout, then Buffered 1% Lidocaine.
First Intervention (Visit 1)
STARTED
12
11
First Intervention (Visit 1)
COMPLETED
12
11
First Intervention (Visit 1)
NOT COMPLETED
0
0
Washout (at Least 1 Week)
STARTED
12
11
Washout (at Least 1 Week)
COMPLETED
12
11
Washout (at Least 1 Week)
NOT COMPLETED
0
0
Second Intervention (Visit 2)
STARTED
12
11
Second Intervention (Visit 2)
COMPLETED
12
11
Second Intervention (Visit 2)
NOT COMPLETED
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

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

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
All Participants
n=23 Participants
All participants who were randomized to received either Buffered 1% Lidocaine or Non-buffered 2% Lidocaine
Age, Categorical
<=18 years
0 Participants
n=5 Participants
Age, Categorical
Between 18 and 65 years
23 Participants
n=5 Participants
Age, Categorical
>=65 years
0 Participants
n=5 Participants
Sex: Female, Male
Female
13 Participants
n=5 Participants
Sex: Female, Male
Male
10 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
22 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
Region of Enrollment
United States
23 Participants
n=5 Participants

PRIMARY outcome

Timeframe: Every 30 minutes up to 120 minutes total

Subject's Mandibular first molar teeth tested before anesthetic and every 30 minutes after for response to Cold and Electric Pulp Test as reported by subjects as a "yes" or "no."

Outcome measures

Outcome measures
Measure
Buffered 1% Lidocaine, Then Non-buffered 2% Lidocaine
n=23 Participants
At each treatment visit, participants were injected orally for mandibular block (inferior alveolar, lingual, buccal nerves). For this arm, participants first received Buffered 1% Lidocaine followed by a 1-week washout, then Non-buffered 2% Lidocaine.
Non-Buffered 2% Lidocaine, Then Buffered 1% Lidocaine
n=23 Participants
At each treatment visit, participants were injected orally for mandibular block (inferior alveolar, lingual, buccal nerves). For this arm, participants first received Non-Buffered 2% Lidocaine followed by a 1-week washout, then Buffered 1% Lidocaine.
Mean Time to Pulpal Response After Mandibular Molar Anesthesia
99 Minutes
Standard Deviation 49
98 Minutes
Standard Deviation 45

PRIMARY outcome

Timeframe: Every 30 minutes up to 120 minutes total

Subject's Mandibular canine teeth will be tested before anesthetic and every 30 minutes after for response to Cold and Electronic Pulp Test for presence of anesthesia as reported by participants "yes" or "no."

Outcome measures

Outcome measures
Measure
Buffered 1% Lidocaine, Then Non-buffered 2% Lidocaine
n=23 Participants
At each treatment visit, participants were injected orally for mandibular block (inferior alveolar, lingual, buccal nerves). For this arm, participants first received Buffered 1% Lidocaine followed by a 1-week washout, then Non-buffered 2% Lidocaine.
Non-Buffered 2% Lidocaine, Then Buffered 1% Lidocaine
n=23 Participants
At each treatment visit, participants were injected orally for mandibular block (inferior alveolar, lingual, buccal nerves). For this arm, participants first received Non-Buffered 2% Lidocaine followed by a 1-week washout, then Buffered 1% Lidocaine.
Mean Time to Pulpal Response After Mandibular Canine Anesthesia
82 Minutes
Standard Deviation 48
85 Minutes
Standard Deviation 48

Adverse Events

Buffered 1% Lidocaine

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Non-Buffered 2% Lidocaine

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Adverse event data not reported

Additional Information

Raymond P. White, Jr. DDS, PhD

University of North Carolina at Chapel Hill

Phone: 919-537-3944

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place