Analgesic Effects of Extraoral Ultrasound Block of Mandibular Nerve for the Extraction of Lower Third Molars

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

36 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-09-01

Study Completion Date

2023-12-31

Brief Summary

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This is a study about the dynamics and effects of different types of blocks (intraoral conduction anesthesia of the alveolar nerve and extraoral US block of the mandibular nerve) for extraction of lower third molars.

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Detailed Description

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Standard method of anesthesia for extraction of horizontally positioned lower thirdmolars is intraoral conduction anesthesia of the inferior alveolar nerve. However, the analgesiceffect of block is short and it is necessary to use analgesics. In this prospective clinical study,analgesic effect of ultrasound (US) -guided extraoral block of mandibular nerve will beinvestigated, in order to prolong pain-free time and reduce the use of analgesics associated withrisks (bleeding, hepatotoxicity).

Characteristics of alveolar nerve block and US block of the mandibular nerve will becompared, such as: pain during application of anesthesia, amount of anesthetic, duration ofanesthesia, need to use analgesics, time to and level of pain when using analgesics, andcomplications

Conditions

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Molar Impacted Teeth

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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US block of mandibular nerve

Extraoral ultrasound-guided block of the mandibular nerve will be performed iusing an ultrasound device. After visualisation of the pterygomandibular space, of the maxillary artery and the mandibular nerve next to it, at a depth of 2-4 cm, the detection of the maxillary artery is confirmed by Color Doppler. A needle enters between the coronoid and condylar processes, using the "out of plane" technique, near the maxillary artery, and after negative aspiration, local anesthetic ropivacaine (0.75%, 2.5 mL) will be applied.

Group Type EXPERIMENTAL

US guided block of mandibular nerve

Intervention Type PROCEDURE

Extraoral ultrasound-guided block of the mandibular nerve will be performed in the examined group using an ultrasound device, using ropivacaine (0.75%, 2.5 mL).

intraoral block of lower alveolar nerve

During the intraoral block of the inferior alveolar nerve, the patient will lie with his mouth wide open, and the inferior alveolar, lingual and buccal nerves will be anesthetized using two injections. The anesthetic used will be 40 mg/mL articaine chloride+0.01 mg/mL epinephrine: the planned amount of anesthetic is 2×1.7 mL, and if anesthesia is not achieved, an additional volume of anesthetic will be added as needed, until anesthesia

Group Type ACTIVE_COMPARATOR

Intraoral block of lower alveolar nerve

Intervention Type PROCEDURE

Block of lower alveolar nerve will be applied intraoraly using articaine+adrenaline

Interventions

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US guided block of mandibular nerve

Extraoral ultrasound-guided block of the mandibular nerve will be performed in the examined group using an ultrasound device, using ropivacaine (0.75%, 2.5 mL).

Intervention Type PROCEDURE

Intraoral block of lower alveolar nerve

Block of lower alveolar nerve will be applied intraoraly using articaine+adrenaline

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* age 18-64 years
* horizontally placed lower third molars
* ASA I or II group

Exclusion Criteria

* allergy to local anesthetics
* local infection at the site of needle puncture
* parotitis
* serious liver disease
* use of antiarrhythmics group III (eg amiodarone), anticoagulant or antithrombotic drugs
* lactation
* people who took an analgesic as a preventive measure before coming to the procedure

Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No