Efficacy of Tetracaine/Oxymetazoline Nasal Spray for Endodontic Treatment
| Status: | Not yet recruiting |
|---|---|
| Conditions: | Dental |
| Therapuetic Areas: | Dental / Maxillofacial Surgery |
| Healthy: | No |
| Age Range: | 18 - Any |
| Updated: | 6/21/2018 |
| Start Date: | September 2018 |
| End Date: | July 2019 |
| Contact: | Michael Mittelsteadt, DDS |
| Email: | mpmitt@email.unc.edu |
| Phone: | 952-380-7204 |
Purpose:
To evaluate anesthetic efficacy and overall patient experience with use of Kovanaze
tetracaine/oxymetazoline nasal spray for root canal treatment of vital premolar and anterior
teeth needing root canal treatment.
Participants:
30 adult patients with a vital upper anterior or premolar tooth (#4-13) with a diagnosis
indicating need root canal treatment and who are seeking treatment in the UNC Chapel Hill
School of Dentistry.
Procedures (methods):
Qualifying patients will be anesthetized with tetracaine/oxymetazoline nasal spray anesthetic
in order to facilitate completion of their clinically required, standard of care root canal
treatment. Research procedures include blood pressure monitoring and pain assessment using a
visual analogue pain scale.
To evaluate anesthetic efficacy and overall patient experience with use of Kovanaze
tetracaine/oxymetazoline nasal spray for root canal treatment of vital premolar and anterior
teeth needing root canal treatment.
Participants:
30 adult patients with a vital upper anterior or premolar tooth (#4-13) with a diagnosis
indicating need root canal treatment and who are seeking treatment in the UNC Chapel Hill
School of Dentistry.
Procedures (methods):
Qualifying patients will be anesthetized with tetracaine/oxymetazoline nasal spray anesthetic
in order to facilitate completion of their clinically required, standard of care root canal
treatment. Research procedures include blood pressure monitoring and pain assessment using a
visual analogue pain scale.
The study will be undertaken in the UNC Chapel Hill School of Dentistry student clinics.
Eligible patients seeking treatment at the School of Dentistry will be recruited to the study
and written informed consent obtained.
Operator Training:
Operators will obtain online and in person training to ensure consistent, accurate use of the
nasal spray. Anesthesia of all study subjects will be performed by UNC Chapel Hill Graduate
Endodontics residents.
Patient Selection:
A total of thirty adult subjects (>18years old) seeking endodontic treatment will be
recruited to the study. Inclusion criteria are: American Society of Anesthesiologists class I
or II; Preoperative heart rate of 55 to 100 beats per minute; a maximum blood pressure
reading of 166/100 mmHg; maxillary anterior tooth or premolar with a diagnosis or treatment
plan which indicates root canal treatment.
Exclusion criteria are based on recommendations made by the FDA label as well the adverse
effects reported in prior clinical trials.
History, examination, and recruitment:
Information including history of present illness, vital signs (heart rate and blood pressure)
and medical history will be obtained. Standardized, calibrated examiners will perform a
standard endodontic clinical exam including the response to cold ascertained using a cold
stimulus (EndoIce, Coltène/Whaledent, Cuyahoga Falls, OH). Written informed consent will be
obtained from patients who meet the study criteria and agree to participate.
Participating patients will be asked to rate their current pain on a 100 mm Visual Analogue
Scale. No pain will correspond to 0 mm, mild pain as less than 30 mm, moderate to severe pain
from 30 to 100 mm.
Anesthesia:
Two intranasal sprays of anesthetic (each spray 6mg tetracaine HCl, 0.1mg oxymetazoline) will
be administered 4 minutes apart on the side of the tooth to be treated. After an interval of
10 minutes, pulpal anesthesia will be ascertained by re-evaluating pain level with the VAS
scale, as well as application of a cold stimulus. If adequate pulpal anesthesia is noted, the
operator will commence with treatment. If the patient has a positive response to cold
stimulus on the tooth or a persisting spontaneous moderate to severe pain on the VAS, then a
third spray of tetracaine/oxymetazoline will be administered. After a time interval of 4
minutes the operator will again test for pulpal anesthesia. If at this point pulpal
anesthesia is not noted then the failure to obtain adequate anesthesia will be recorded and
rescue anesthesia will be provided. Root canal treatment will be initiated immediately once
pulpal anesthesia has been ascertained. A timer will be started at this point in order to
record any subsequent time of failure.
Treatment:
The tooth will be isolated with a rubber dam and the pulp chamber will be accessed with a
high-speed dental handpiece. Standard root canal treatment will subsequently be initiated and
performed. If at any point during treatment the patient feels pain, the procedure will be
stopped and pain intensity will be assessed via the aforementioned VAS pain scale. A reported
moderate to severe pain score will necessitate additional anesthetic. The stage and time
after initiation of treatment that pain occurred (access, instrumentation, or obturation)
will be recorded. After three tetracaine/oxymetazoline sprays, rescue anesthesia will be
administered if a moderate to severe pain score persists.
Success will be defined as ability to perform complete cleaning and shaping of the tooth's
root(s). If additional rescue anesthesia is required at any point in during treatment, the
nasal spray anesthesia will be considered a failure. If rescue anesthesia is required during
subsequent stages of treatment, the stage will be recorded for subjective documentation.
Data Analysis:
An exact binomial test with a nominal 0.05 two-sided significance level will have 93% power
to detect the difference between the null hypothesis proportion of 0.5 (random chance) and
the alternative proportion of 0.8 when the sample size is 30. Secondary analysis will
evaluate the proportion of patients that demonstrated sufficient pulpal anesthesia to
commence treatment. For patients who required rescue anesthesia, the stage of treatment and
time until rescue was needed will be analyzed. The success rate of premolars vs. anterior
teeth will also be evaluated.
Eligible patients seeking treatment at the School of Dentistry will be recruited to the study
and written informed consent obtained.
Operator Training:
Operators will obtain online and in person training to ensure consistent, accurate use of the
nasal spray. Anesthesia of all study subjects will be performed by UNC Chapel Hill Graduate
Endodontics residents.
Patient Selection:
A total of thirty adult subjects (>18years old) seeking endodontic treatment will be
recruited to the study. Inclusion criteria are: American Society of Anesthesiologists class I
or II; Preoperative heart rate of 55 to 100 beats per minute; a maximum blood pressure
reading of 166/100 mmHg; maxillary anterior tooth or premolar with a diagnosis or treatment
plan which indicates root canal treatment.
Exclusion criteria are based on recommendations made by the FDA label as well the adverse
effects reported in prior clinical trials.
History, examination, and recruitment:
Information including history of present illness, vital signs (heart rate and blood pressure)
and medical history will be obtained. Standardized, calibrated examiners will perform a
standard endodontic clinical exam including the response to cold ascertained using a cold
stimulus (EndoIce, Coltène/Whaledent, Cuyahoga Falls, OH). Written informed consent will be
obtained from patients who meet the study criteria and agree to participate.
Participating patients will be asked to rate their current pain on a 100 mm Visual Analogue
Scale. No pain will correspond to 0 mm, mild pain as less than 30 mm, moderate to severe pain
from 30 to 100 mm.
Anesthesia:
Two intranasal sprays of anesthetic (each spray 6mg tetracaine HCl, 0.1mg oxymetazoline) will
be administered 4 minutes apart on the side of the tooth to be treated. After an interval of
10 minutes, pulpal anesthesia will be ascertained by re-evaluating pain level with the VAS
scale, as well as application of a cold stimulus. If adequate pulpal anesthesia is noted, the
operator will commence with treatment. If the patient has a positive response to cold
stimulus on the tooth or a persisting spontaneous moderate to severe pain on the VAS, then a
third spray of tetracaine/oxymetazoline will be administered. After a time interval of 4
minutes the operator will again test for pulpal anesthesia. If at this point pulpal
anesthesia is not noted then the failure to obtain adequate anesthesia will be recorded and
rescue anesthesia will be provided. Root canal treatment will be initiated immediately once
pulpal anesthesia has been ascertained. A timer will be started at this point in order to
record any subsequent time of failure.
Treatment:
The tooth will be isolated with a rubber dam and the pulp chamber will be accessed with a
high-speed dental handpiece. Standard root canal treatment will subsequently be initiated and
performed. If at any point during treatment the patient feels pain, the procedure will be
stopped and pain intensity will be assessed via the aforementioned VAS pain scale. A reported
moderate to severe pain score will necessitate additional anesthetic. The stage and time
after initiation of treatment that pain occurred (access, instrumentation, or obturation)
will be recorded. After three tetracaine/oxymetazoline sprays, rescue anesthesia will be
administered if a moderate to severe pain score persists.
Success will be defined as ability to perform complete cleaning and shaping of the tooth's
root(s). If additional rescue anesthesia is required at any point in during treatment, the
nasal spray anesthesia will be considered a failure. If rescue anesthesia is required during
subsequent stages of treatment, the stage will be recorded for subjective documentation.
Data Analysis:
An exact binomial test with a nominal 0.05 two-sided significance level will have 93% power
to detect the difference between the null hypothesis proportion of 0.5 (random chance) and
the alternative proportion of 0.8 when the sample size is 30. Secondary analysis will
evaluate the proportion of patients that demonstrated sufficient pulpal anesthesia to
commence treatment. For patients who required rescue anesthesia, the stage of treatment and
time until rescue was needed will be analyzed. The success rate of premolars vs. anterior
teeth will also be evaluated.
Inclusion Criteria:
- American Society of Anesthesiologists class I or II
- Preoperative heart rate of 55 to 100 beats per minute
- Maximum blood pressure reading of 166/100 mmHg
- Maxillary anterior tooth or premolar with a diagnosis or treatment plan which
indicates root canal treatment
Exclusion Criteria:
- Inadequately controlled thyroid disease
- Five or more nosebleeds in the past month
- Known allergy to any study drug or para-aminobenzoic acid
- History of methemoglobinemia
- Taking monoamine oxidase inhibitors, tricyclic antidepressants (i.e. amitriptyline),
or non-selective beta adrenergic antagonists (i.e. propranolol);
- Taking oxymetazoline-containing products (i.e., Afrin) in the last 24 hours.
We found this trial at
1
site
Chapel Hill, North Carolina 27599
Principal Investigator: Michael Mittelsteadt, DDS
Phone: 952-380-7204
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