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Romero-Reyes M, Arman S, Teruel A, Kumar S, Hawkins J, Akerman S. Pharmacological Management of Orofacial Pain. Drugs 2023; 83:1269-1292. [PMID: 37632671 DOI: 10.1007/s40265-023-01927-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/26/2023] [Indexed: 08/28/2023]
Abstract
Orofacial pain is a category of complex disorders, including musculoskeletal, neuropathic and neurovascular disorders, that greatly affect the quality of life of the patient. These disorders are within the fields of dentistry and medicine and management can be challenging, requiring a referral to an orofacial pain specialist, essential for adequate evaluation, diagnosis, and care. Management is specific to the diagnosis and a treatment plan is developed with diverse pharmacological and non-pharmacological modalities. The pharmacological management of orofacial pain encompasses a vast array of medication classes and approaches. This includes anti-inflammatory drugs, muscle relaxants, anticonvulsants, antidepressants, and anesthetics. In addition, as adjunct therapy, different injections can be integrated into the management plan depending on the diagnosis and needs. These include trigger point injections, temporomandibular joint (TMJ) injections, and neurotoxin injections with botulinum toxin and nerve blocks. Multidisciplinary management is key for optimal care. New and safer therapeutic targets exclusively for the management of orofacial pain disorders are needed to offer better care for this patient population.
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Affiliation(s)
- Marcela Romero-Reyes
- Brotman Facial Pain Clinic, School of Dentistry, University of Maryland, 650 W. Baltimore St, 1st Floor, Baltimore, MD, 21201, USA.
- Department of Pain and Neural Sciences, School of Dentistry, University of Maryland, 650 W. Baltimore St, 8th Floor, Baltimore, MD, 21201, USA.
| | - Sherwin Arman
- Orofacial Pain Program, Section of Oral Medicine, Oral Pathology and Orofacial Pain, University of California, Los Angeles, School of Dentistry, Los Angeles, CA, USA
| | | | - Satish Kumar
- Department of Periodontics, Arizona School of Dentistry and Oral Health, A.T. Still University, Mesa, AZ, USA
| | - James Hawkins
- Naval Postgraduate Dental School, Naval Medical Leader and Professional Development Command, Uniformed Services University of the Health Sciences Postgraduate Dental College, Baltimore, MD, USA
| | - Simon Akerman
- Department of Pain and Neural Sciences, School of Dentistry, University of Maryland, 650 W. Baltimore St, 8th Floor, Baltimore, MD, 21201, USA
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Chęciński M, Chęcińska K, Turosz N, Brzozowska A, Chlubek D, Sikora M. Current Clinical Research Directions on Temporomandibular Joint Intra-Articular Injections: A Mapping Review. J Clin Med 2023; 12:4655. [PMID: 37510770 PMCID: PMC10380303 DOI: 10.3390/jcm12144655] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 06/27/2023] [Accepted: 07/11/2023] [Indexed: 07/30/2023] Open
Abstract
This mapping review aims to identify and discuss current research directions on intracavitary temporomandibular joints (TMJs) injections. The inclusion criteria allowed studies published in the last full six years, based on patients diagnosed with temporomandibular joint disorders (TMDs), treated by TMJ intra-articular injections. Medical databases covered by the Association for Computing Machinery, Bielefeld Academic Search Engine, PubMed, and Elsevier Scopus engines were searched. The results were visualized with tables, charts, and diagrams. Of the 2712 records identified following the selection process, 152 reports were qualified for review. From January 2017, viscosupplementation with hyaluronic acid (HA) was the best-documented injectable administered into TMJ cavities. However, a significant growing trend was observed in the number of primary studies on centrifuged blood preparations administrations that surpassed the previously leading HA from 2021.
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Affiliation(s)
- Maciej Chęciński
- Department of Oral Surgery, Preventive Medicine Center, Komorowskiego 12, 30-106 Cracow, Poland
| | - Kamila Chęcińska
- Department of Glass Technology and Amorphous Coatings, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Mickiewicza 30, 30-059 Cracow, Poland
| | - Natalia Turosz
- Institute of Public Health, Jagiellonian University Medical College, Skawińska 8, 31-066 Cracow, Poland
| | - Anita Brzozowska
- Preventive Medicine Center, Komorowskiego 12, 30-106 Kraków, Poland
| | - Dariusz Chlubek
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University, Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland
| | - Maciej Sikora
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University, Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland
- Department of Maxillofacial Surgery, Hospital of the Ministry of Interior, Wojska Polskiego 51, 25-375 Kielce, Poland
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Intra-Articular Injections into the Inferior versus Superior Compartment of the Temporomandibular Joint: A Systematic Review and Meta-Analysis. J Clin Med 2023; 12:jcm12041664. [PMID: 36836198 PMCID: PMC9967437 DOI: 10.3390/jcm12041664] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 01/30/2023] [Accepted: 02/16/2023] [Indexed: 02/22/2023] Open
Abstract
This systematic review and meta-analysis aimed to validate the hypothesis that intra-articular injections into the inferior temporomandibular joint compartment are more efficient than analogous superior compartment interventions. Publications reporting differences between the above-mentioned techniques in the domains of revealing articular pain, decreasing the Helkimo index, and abolishing mandibular mobility limitation were included. Medical databases covered by the Bielefeld Academic Search Engine, Google Scholar, PubMed, ResearchGate, and Scopus engines were searched. The risk of bias was assessed using dedicated Cochrane tools (RoB2, ROBINS-I). The results were visualized with tables, charts, and a funnel plot. Six reports describing five studies with a total of 342 patients were identified. Of these, four trials on a total of 337 patients were qualified for quantitative synthesis. Each eligible report was at moderate risk of bias. From 19% to 51% improvement in articular pain, 12-20% lower Helkimo index, and 5-17% higher maximum mouth opening were observed. The evidence was limited by the small number of eligible studies, discrepancies regarding the substances used, possible biases, and the differences in observation times and scheduled follow-up visits. Despite the above, the advantage of inferior over superior compartment temporomandibular joint intra-articular injections is unequivocal and encourages further research in this direction.
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Januzzi E, Cunha TCA, Silva G, Souza BDM, Duarte ASB, Zanini MRS, Andrade AM, Pedrosa AR, Custódio ALN, Castro MAA. Viscosupplementation in the upper and lower compartments of the temporomandibular joint checked by ultrasonography in an ex vivo and in vivo study. Sci Rep 2022; 12:17976. [PMID: 36289252 PMCID: PMC9606122 DOI: 10.1038/s41598-022-21781-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 10/04/2022] [Indexed: 01/24/2023] Open
Abstract
Viscosupplementation (VS) of the temporomandibular joint (TMJ) aims to treat temporomandibular dysfunction (TMD) by stimulating synovial cells to improve intracapsular lubrication. The purpose of the present study was to assess a VS protocol planned with the aid of cone-beam computed tomography (CBCT) and checked by ultrasonography (US). The study was carried out in 3 stages. The first was to check the correspondence between the proposed facial reference points and the osseous components of the joint by means of CBCT. In the second stage, the upper and lower compartments of 20 TMJs of fresh frozen cadavers were injected with coloured liquids, and the accuracy of the technique was confirmed by dissecting the anatomical specimens. The third stage consisted of VS in 10 patients (20 TMJs), with real-time verification of the location of the needle tip by means of ultrasonography. CBCT confirmed the correct locations of the marked points used in the proposed VS protocol. The dissections showed that 13 of the 14 injections effectively reached the upper and lower compartments. The location of the needle tip was effectively verified by ultrasonography, confirming the correct access to both compartments. The proposed protocol was effective for accessing the upper and lower compartments of the TMJ. The evaluated protocol proved to be accurate, safe and clinically reproducible means of VS in the upper and lower compartments of the TMJ.
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Affiliation(s)
- Eduardo Januzzi
- grid.414826.d0000 0004 0496 9134Orofacial Pain Center of the Mater Dei Hospital, Belo Horizonte, Minas Gerais Brazil
| | | | | | | | | | | | | | | | - Antônio Luís Neto Custódio
- grid.8430.f0000 0001 2181 4888Biological Sciences Institute of the Federal University of Minas Gerais, Belo Horizonte, Minas Gerais Brazil
| | - Maurício Augusto Aquino Castro
- grid.8430.f0000 0001 2181 4888Department of Dental Clinics, Oral Pathology and Oral Surgery of the Faculty of Dentistry of the Federal University of Minas Gerais, Av. Antônio Carlos, 6627, Pampulha, Belo Horizonte, Minas Gerais CEP: 31.270-901 Brazil
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Hyder A, Tawfik BE, Elmohandes W. Efficacy of computer-guided versus conventional sodium hyaluronate injection in superior joint space in treatment of temporomandibular joint (TMJ) internal derangement: Comparative randomized controlled trial. JOURNAL OF STOMATOLOGY, ORAL AND MAXILLOFACIAL SURGERY 2022; 123:e321-e326. [PMID: 35545190 DOI: 10.1016/j.jormas.2022.05.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Revised: 04/23/2022] [Accepted: 05/04/2022] [Indexed: 06/15/2023]
Abstract
OBJECTIVES evaluate the feasibility and clinical outcomes of computer-guided sodium hyaluronate injection in superior joint space compared to conventional injection for the treatment of TMJ Internal Derangement (TMJ-ID). PATIENTS AND METHODS Randomized controlled trial conducted on 40 patients diagnosed with bilateral TMJ-ID divided into two groups. Group A treated with four computer-guided sodium hyaluronate injections in superior TMJ space with one-week intervals. Group B received similar injections but with the conventional method. The intraoperative assessment included total procedural time and patient convenience during the injection. The postoperative evaluation included maximum unassisted mouth opening (MUMO), modified Helkimo's clinical dysfunction index, and pain intensity on a visual analog scale (VAS). RESULTS Group A showed better improvement in maximum mouth opening and pain intensity than group B after a week of the second, third and fourth injection. At the six months, group A continued to show better improvement regarding maximum mouth opening, while improvement in pain and TMJ dysfunction was similar in both groups. There were differences between both groups regarding procedural time and patient convenience across the study except the time of the first injection, which was similar in both groups CONCLUSION: Using the virtual planning and injection guide for intra-articular TMJ injection is considered promising to increase the accuracy and efficacy of injectable material securing faster results besides rendering the procedure easily reproducible and simpler to both clinicians and patients. However, the authors could not ensure the long-term superiority of the computer-guided injection technique over the conventional one in light of the results of this study.
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Affiliation(s)
- AbdElKader Hyder
- Assistant Lecturer of Oral and Maxillofacial Surgery, Faculty of Dentistry, Al-Azhar University, 11884, ElNasr Road, Nasr City, Cairo, Egypt.
| | - Bahaa Eldin Tawfik
- Professor of Oral and Maxillofacial Surgery, Faculty of Dentistry, Al-Azhar University, Cairo, Egypt
| | - Wael Elmohandes
- Professor of Oral and Maxillofacial Surgery, Faculty of Dentistry, Al-Azhar University, Cairo, Egypt
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Sikora M, Sielski M, Chęciński M, Nowak Z, Czerwińska-Niezabitowska B, Chlubek D. Repeated Intra-Articular Administration of Platelet-Rich Plasma (PRP) in Temporomandibular Disorders: A Clinical Case Series. J Clin Med 2022; 11:jcm11154281. [PMID: 35893369 PMCID: PMC9331867 DOI: 10.3390/jcm11154281] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 07/19/2022] [Accepted: 07/20/2022] [Indexed: 02/06/2023] Open
Abstract
Background: Temporomandibular joint disorders (TMDs) are manifested, inter alia, by pain and limited scope of the mandibular abduction. Among the treatment strategies for these ailments, intra-articular injections of autologous blood preparations, including platelet-rich plasma (PRP), are administered. This prospective case series was aimed at assessing the effectiveness of repeated platelet-rich plasma (PRP) administration to the TMJ cavities in terms of reducing articular pain and increasing the mobility of the mandible. Material and methods: 40 consecutive patients diagnosed with TMJ pain qualified for the case series. The entire treatment program consisted of five PRP administrations and a summary appointment. Regression was analyzed for (1) intensity of spontaneous pain; (2) effectiveness of spontaneous pain relief; (3) mastication efficiency values; (4) painless mandibular abduction; (5) maximum mouth opening. The correlations between the abovementioned variable series were analyzed. Results: The mean spontaneous pain decreased consistently with successive PRP administrations in line with the regression model: −0.4x + 4.2 (R2 = 0.98). Articular pain improvement was reported in 71% of joints treated. Improvement in chewing quality at the end of the entire injection cycle was found in 63% of patients. The equations for the linear regression models for painless mandibular abduction (five applications of PRP) and maximum mouth opening (the first four applications of PRP) were x + 34 (R2 = 0.89) and 0.6x + 43.6 (R2 = 0.96), respectively. Improvement in these domains was found in 78% and 53% of patients, respectively. The strongest correlations were found between pain and chewing efficiency (−0.95), pain and painless mandible abduction (−0.96), and painless mandibular abduction and mastication efficiency (0.94). Conclusion: PRP injections into TMJ cavities should be considered as a low invasive, highly accessible form of treatment for various TMDs causing pain and mandible movement limitation.
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Affiliation(s)
- Maciej Sikora
- Department of Maxillofacial Surgery, Hospital of the Ministry of Interior, Wojska Polskiego 51, 25-375 Kielce, Poland; (M.S.); (M.S.)
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University, Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland
| | - Marcin Sielski
- Department of Maxillofacial Surgery, Hospital of the Ministry of Interior, Wojska Polskiego 51, 25-375 Kielce, Poland; (M.S.); (M.S.)
| | - Maciej Chęciński
- Department of Oral Surgery, Preventive Medicine Center, Komorowskiego 12, 30-106 Cracow, Poland;
| | - Zuzanna Nowak
- Department of Temporomandibular Disorders, Medical University of Silesia in Katowice, Traugutta 2, 41-800 Zabrze, Poland;
| | | | - Dariusz Chlubek
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University, Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland
- Correspondence:
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Chęciński M, Sikora M, Chęcińska K, Nowak Z, Chlubek D. The Administration of Hyaluronic Acid into the Temporomandibular Joints' Cavities Increases the Mandible's Mobility: A Systematic Review and Meta-Analysis. J Clin Med 2022; 11:jcm11071901. [PMID: 35407508 PMCID: PMC8999958 DOI: 10.3390/jcm11071901] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 03/26/2022] [Accepted: 03/28/2022] [Indexed: 12/28/2022] Open
Abstract
OBJECTIVES The purpose of this systematic review with meta-analysis is to identify clinical studies concerning the impact of intra-articular administration of hyaluronic acid (HA) on mandibular mobility and to make an attempt at determining the efficacy of HA in this indication. METHODS The review included primary studies involving groups of at least 10 patients who were diagnosed with pain in the temporomandibular joint and who were injected with hyaluronic acid as the only intervention. The outcomes pursued were changes in mandibular mobility and pain intensity. Four databases of medical articles were searched, including PubMed and BASE. The risk of bias was assessed using the Cochrane methodology tools. The therapy's efficacy was calculated in the domains of mandibular abduction, protrusive movement, lateral mobility, and pain relief. For these values, the regression and correlation with variables characterizing the interventions were analyzed. RESULTS In total, 16 reports on 20 study groups with a total of 1007 patients qualified for the review. The mean effectiveness in the domain of mandibular abduction over the 6-month follow-up period was 122% of the initial value, and the linear regression model can be expressed as 0.5x + 36. The level of pain in the same time frame decreased to an average of 29%. The severity of pain 6 months after the beginning of treatment positively correlates with the number of injections per joint (0.63), the total amount of drug administered in milliliters (0.62), and the volume of drug administered monthly per joint (0.50). LIMITATIONS In some studies, the patient groups were heterogeneous in terms of diagnosis. The studies varied depending on the joint into which the HA was administered. The synthesized studies differed with regard to the method of measuring the mandible abduction amplitude. CONCLUSIONS The increase in the amplitude of mandibular abduction was expressed as the quotient of the mean values during the observation periods, and the initial value was achieved in all study groups, and in the linear regression model, it was 0.5 mm on average per month. Multiple administrations of the drug may reduce the analgesic effectiveness of the treatment.
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Affiliation(s)
- Maciej Chęciński
- Preventive Medicine Center, Komorowskiego 12, 30-106 Kraków, Poland;
| | - Maciej Sikora
- Department of Maxillofacial Surgery, Hospital of the Ministry of Interior, Wojska Polskiego 51, 25-375 Kielce, Poland;
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University, Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland
| | - Kamila Chęcińska
- Department of Glass Technology and Amorphous Coatings, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Mickiewicza 30, 30-059 Kraków, Poland;
| | - Zuzanna Nowak
- Department of Temporomandibular Disorders, Medical University of Silesia in Katowice, Traugutta 2, 41-800 Zabrze, Poland;
| | - Dariusz Chlubek
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University, Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland
- Correspondence:
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Sultana Shuborna N, Khoo LK, Bhattarai BP, Chaiyasamut T, Kiattavorncharoen S, Pairuchvej V, Wongsirichat N. Intra-socket application of Hyaluronic acid reduces pain and swelling following wisdom teeth removal. JOURNAL OF ORAL MEDICINE AND ORAL SURGERY 2022. [DOI: 10.1051/mbcb/2021038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Background: Hyaluronic acid (HA) has the potential to promote wound healing. Pain and swelling with trismus are common sequalae post wisdom teeth removal. This study aims to investigate the effectiveness of intra-socket HA solution to reduce these uncomfortable post-operative events. Materials and methods: 30 patients underwent bilateral extractions of mandibular wisdom teeth for this study. Intra-socket application of 0.7 ml 20 mg/2 ml HA solution (Hyalgun) with Gel foam as a scaffold in study site versus Gel foam only on control site was conducted via a split mouth study design. Data collection of five facial reference points for swelling and maximum mouth opening was recorded during the pre-operative period and post-operative 2nd and 7th day. The VAS pain score at post-op 1st, 2nd and 3rd day and the number of analgesics for the 7-day post-operative duration were evaluated. Results: The HA group demonstrated statistically significant less swelling, trismus and analgesia consumption on the 2 and 7 days after surgery. VAS scores on day 1, 2 and 3 after surgery (P = 0.05) were significantly less in the HA group compared to the control group. Conclusion: The application of intra-socket HA has a positive effect for reducing postoperative pain and swelling with trismus after the lower third molar intervention (LTMI).
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Custódio ALN, Cameron A, Bakr M, Little C, Chrcanovic BR, Reher P. Positioning accuracy assessment of minimally invasive percutaneous injection techniques for the treatment of temporomandibular disorders. Dentomaxillofac Radiol 2020; 50:20200313. [PMID: 32706994 DOI: 10.1259/dmfr.20200313] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
OBJECTIVE The aim of the present study was to evaluate the accuracy of an extraoral CBCT-planned 3D-printed surgical guide aimed to percutaneous injection of substances into the temporomandibular joint (TMJ) and the lateral pterygoid muscle (LPM). METHODS Nine human cadaver heads were used. Pre-planning CBCT and facial scans were obtained and three percutaneous injection sites were planned: one for the lower compartment of the TMJ and two for the LPM. A digital surgical guide was then designed with small titanium sleeves and printed by a 3D printer. After the injections, new CBCT scans with the needles in place were obtained in order to assess the accuracy of the procedure in relation to the virtual planning. RESULTS The mean values for angle deviation were very low (range 1.13o-4.08o), the same happening for the mean difference in the length reached (range 1.82-2.64 mm), as well as for the mean difference in the needle tip dislocation (range 0.94-2.03 mm). CONCLUSION The guide seems to be a reliable tool for accurate percutaneous injection of drugs into the inferior compartment of the TMJ and the LPM. Further studies are necessary to test the efficacy and validate the method in an in vivo study.
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Affiliation(s)
- Antônio Luís Neto Custódio
- Department of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Andrew Cameron
- School of Dentistry and Oral Health, Griffith University, Gold Coast, Australia
| | - Mahmoud Bakr
- School of Dentistry and Oral Health, Griffith University, Gold Coast, Australia
| | - Chris Little
- Queensland College of Art, Griffith University, Gold Coast, Australia
| | | | - Peter Reher
- School of Dentistry and Oral Health, Griffith University, Gold Coast, Australia
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Short-Term Effects of Intra-Articular Hyaluronic Acid Administration in Patients with Temporomandibular Joint Disorders. J Clin Med 2020; 9:jcm9061749. [PMID: 32516934 PMCID: PMC7356604 DOI: 10.3390/jcm9061749] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 05/25/2020] [Accepted: 06/03/2020] [Indexed: 12/13/2022] Open
Abstract
The study described in this paper was conducted to assess the short-term outcomes of intra-articular administration of hyaluronic acid in patients with symptoms of temporomandibular joint disorders. A group of 40 patients suffering from temporomandibular joint disorders underwent a series of hyaluronic acid intra-articular injections. Questionnaires and clinical examinations were conducted to assess stress exposure of the subjects and to evaluate short-term treatment outcomes, i.e., reducing joint and muscle pain and increasing the mobility of the mandible. A weak positive correlation between stress exposure and pain was observed. As a result of treatment, 61% of subjects revealed a total reduction of muscle pain, while joint pain completely resolved in 88% of patients. Mandibular mobility increased by 11%, 31%, 9%, and 11% regarding opening, protrusive, and lateral right and left movements, respectively. The study confirms the short-term effectiveness of intra-articular administration of hyaluronic acid on reducing joint and muscle pain in patients with articular disc displacement. The treatment positively affected the mobility of the mandible in all directions. The verification of late treatment effects of hyaluronic acid viscosupplementation requires the continuation of the research.
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