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The retrospective study aimed to evaluate the efficacy of the Auriculotemporal Nerve Block (ATNB) in achieving unrestricted mouth opening amount and in reducing the pain scores in those patients diagnosed with disc displacement with (DDWR) and without reduction (DDWOR) according to the Diagnostic Criteria for Temporomandibular Disorders, who could not benefit from noninvasive methods but did not want further invasion.
The records of 410 patients referred to the Department of Oral and Maxillofacial Surgery with TMD symptoms were reviewed to determine the treatment modalities used and their outcomes. The subjects were examined and diagnosed according to the Turkish translation version of The Diagnostic Criteria for Temporomandibular Disorders (DC/TMD-Axis 1 questionnaire and examination form). The pain intensity, maximal mouth opening (MMO) amounts, and self-reported outcome variables of twenty-two patients who underwent non-invasive therapies (occlusal stabilization splints, behavioral modifications, physical therapy, pharmacotherapy) but did not benefit from them and volunteered for the ATNB instead of invasive therapies (arthrocentesis, arthroscopy, and discectomy) were also evaluated. Prior to the ATNB, written informed consent was obtained from each participant. Also, each participant was warned about complications of the ATNB before the administration, such as hematoma at the injection site, positive aspiration, and temporary anesthesia of the facial nerve.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Auriculotemporal Nerve Block Administration | Experimental | A total of 3 doses of Auriculotemporal Nerve Block (ATNB) were administered to involved participants. Local anesthetic solutions containing Articaine Hydrochloride (80 mg / 2 ml) and epinephrine bitartrate (0.02 mg / 2 ml) were used for ATNB application. The injections were repeated on follow-up visits in the first and fourth weeks. The maximal mouth opening amounts, pain intensity values (via VAS scale), and self-reported outcomes were evaluated at the pre-injection, first week, fourth week, and sixth-month follow-up controls. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| local anaesthetic injection | Procedure | The head and neck of the condyle were detected by palpating the pretragal area. Then, the needle was inserted anterior to the junction of the tragus and the lobule. After 0.5 ml the solution was subcutaneously infiltrated, the needle was protruded until it touched the neck of the condyle. Aspiration was performed to avoid intravenous injections, and the remaining solution was injected thereafter. |
| Measure | Description | Time Frame |
|---|---|---|
| Baseline Pain Intensity | Pain intensity was measured using a 10-point Visual Analog Scale (VAS), in which 0 referred to 'no pain', 5 referred to 'moderate pain,' and 10 referred to 'excruciating pain'. The patients were asked to mark their pain intensities on VAS scale. | At the initial visit before starting anesthetic administration. |
| Post-injection Pain Intensity | Pain intensity was measured using a 10-point Visual Analog Scale (VAS), in which 0 referred to 'no pain', 5 referred to 'moderate pain,' and 10 referred to 'excruciating pain'. The patients were asked to mark their pain intensities on VAS scale. | At six months follow-up visit |
| Change From Baseline Maximal Mouth Opening on Post-Injection Follow Up Visits | All patients' maximal mouth opening were measured and recorded as the distance between upper and lower right central incisors. | At the first week, fourth week and sixth month. |
| Measure | Description | Time Frame |
|---|---|---|
| Overall Satisfaction With The Applied Treatment | Patients were asked dichotomously to define the ATNB as successful/unsuccessful, according to their experience. The patients' responses were recorded individually. | At the six-month follow-up visit |
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Inclusion Criteria:
Exclusion Criteria:
Patients with
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| Name | Affiliation | Role |
|---|---|---|
| Mehmet K. Tümer, AssocProfDr | Alanya Alaaddin Keykubat University | Study Director |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Tokat Gaziosmanpasa University, Faculty of Dentistry | Tokat Province | 60100 | Turkey (Türkiye) |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| Background | NASCIMENTO, Mirella Marques Mercês do, et al. Anesthetic blockage of the auriculotemporal nerve and its clinical implications. Odontologia ClÃnico-CientÃfica (Online), 2011, 10.2: 143-146. | ||
| 17588187 | Background | Ayesh EE, Ernberg M, Svensson P. Effects of local anesthetics on somatosensory function in the temporomandibular joint area. Exp Brain Res. 2007 Jul;180(4):715-25. doi: 10.1007/s00221-007-0893-4. Epub 2007 Feb 15. | |
| 23229236 |
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The data regarding participants were made available in the manuscript
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| ID | Term |
|---|---|
| D013705 | Temporomandibular Joint Disorders |
| ID | Term |
|---|---|
| D017271 | Craniomandibular Disorders |
| D008336 | Mandibular Diseases |
| D007571 | Jaw Diseases |
| D009140 | Musculoskeletal Diseases |
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| ID | Term |
|---|---|
| D000772 | Anesthesia, Local |
| ID | Term |
|---|---|
| D000765 | Anesthesia, Conduction |
| D000758 | Anesthesia |
| D000760 | Anesthesia and Analgesia |
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Participants whose Temporomandibular disorders (TMD)-related complaints continued despite occlusal stabilization splint, NSAIDs and centrally acting muscle relaxant treatments were administered a total of 3 doses of Auriculotemporal Nerve Block (ATNB).
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| Result |
| Nascimento MM, Vasconcelos BC, Porto GG, Ferdinanda G, Nogueira CM, Raimundo RD. Physical therapy and anesthetic blockage for treating temporomandibular disorders: a clinical trial. Med Oral Patol Oral Cir Bucal. 2013 Jan 1;18(1):e81-5. doi: 10.4317/medoral.17491. |
| D007592 |
| Joint Diseases |
| D009135 | Muscular Diseases |
| D009057 | Stomatognathic Diseases |