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Barbosa DF, Bana LF, Berzin F, Júnior AJM. Combined Therapy for Associated Orofacial Disorders-A Challenging Case Report. Eur J Dent 2022; 16:947-949. [PMID: 35820439 DOI: 10.1055/s-0042-1749365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
Abstract
Health promotion and disease prevention link intricately with lifestyle habits such as a healthy diet, physical activity, and good sleep quality. Temporomandibular joint (TMJ) dysfunction and associated disorders can take away sleep and well-being depending on the form and intensity that affect the individual. A multidisciplinary effort has contributed to significant health advances, improving clinical outcomes concerning TMJ dysfunction. This report presents the case of a 37-year-old Caucasian female physical educator with a good healthy diet with complaints of tooth tightening, constant TMJ and neck pain, and tinnitus. The patient was treated with inferior occlusal splint placement and selective occlusal adjustments based on neuro-occlusal rehabilitation. The patient reported relief of pain symptoms with occlusal and body balance, discontinued analgesic medication, and maintained the occlusal splint to practice sports and sleep due to the perception of improved physical performance and sleep, and quality of life. Based on this report, it is necessary to analyze the causes and define the effects of different disorders to establish their diagnosis and treatment and changing patterns to reestablish functional balance.
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Affiliation(s)
- Denise Fernandes Barbosa
- Division of Surgical Sciences, Department of Otorhinolaryngology, School of Medical Sciences, University of Campinas, UNICAMP, Campinas, São Paulo, Brazil
| | - Laura Fernandes Bana
- Department of Morphology, Dentistry School of Piracicaba, Piracicaba, São Paulo, Brazil
| | - Fausto Berzin
- Department of Morphology, Dentistry School of Piracicaba, Piracicaba, São Paulo, Brazil
| | - Almiro José Machado Júnior
- Division of Surgical Sciences, Department of Otorhinolaryngology, School of Medical Sciences, University of Campinas, UNICAMP, Campinas, São Paulo, Brazil
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Lee JD, Becker JI, Larkin LM, Almarza AJ, Kapila SD. Morphologic and histologic characterization of sheep and porcine TMJ as large animal models for tissue engineering applications. Clin Oral Investig 2022; 26:5019-5027. [PMID: 35359187 PMCID: PMC9276584 DOI: 10.1007/s00784-022-04472-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Accepted: 03/21/2022] [Indexed: 11/26/2022]
Abstract
Objective The aim of this study was to compare and characterize the structural and ultrastructural organization of the temporomandibular joint (TMJ) between two large animal models for use in the development of tissue engineering strategies. Materials and methods Whole TMJs from sheep and pigs were evaluated with micro-computed tomography (μCT) for morphology and quantitative analyses of bone parameters. Histological examination was performed on the TMJ disc and its attachments to investigate regional distribution of collagen, elastin, and glycosaminoglycans (GAGs). Results μCT analyses demonstrate higher bone mineral density (BMD) in the temporal fossa compared to the mandibular condyle in both species, with this variable being significantly higher in sheep than pig. Quantitative morphometry of the trabecular condyle reveals no statistical differences between the species. Histology demonstrates similar structural organization of collagen and elastin between species. Elastin staining was nearly twofold greater in sheep than in the pig disc. Finally, Safranin-O staining for GAGs in the TMJ disc was localized to the intermediate zone in the sheep but was absent from the porcine disc. Conclusions Our findings show some important differences in the pig and sheep TMJ μCT variables and histology and composition of the disc and discal attachment. These disparities likely reflect differences in masticatory and TMJ functional loading patterns between the two species and provide insights into large animal models towards human applications. Clinical relevance As with the established pig model, the sheep is a suitable large animal model for TMJ research such as regenerative strategies, with specific considerations for design parameters appropriate for human-analog applications.
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Affiliation(s)
- Jonah D Lee
- Department of Molecular & Integrative Physiology, University of Michigan School of Medicine, Ann Arbor, MI, 48109, USA
- Animal Care and Use Office, Office of Research, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Josh I Becker
- Department of Molecular & Integrative Physiology, University of Michigan School of Medicine, Ann Arbor, MI, 48109, USA
| | - Lisa M Larkin
- Department of Molecular & Integrative Physiology, University of Michigan School of Medicine, Ann Arbor, MI, 48109, USA
| | - Alejandro J Almarza
- Department of Oral and Craniofacial Sciences, School of Dental Medicine, University of Pittsburgh, Pittsburgh, PA, 15261, USA
- Center of Craniofacial Regeneration, University of Pittsburgh, Pittsburgh, PA, 15261, USA
- Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, Pittsburgh, PA, 15261, USA
| | - Sunil D Kapila
- Section of Orthodontics, School of Dentistry, University of California Los Angeles School of Dentistry, 10833 Le Conte Avenue, CHS 33-089, Box 951668, Los Angeles, CA, 90095, USA.
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Arzi B, Nolta JA, Vapniarsky N. The oromaxillofacial region as a model for a one-health approach in regenerative medicine. Am J Vet Res 2022; 83:291-297. [PMID: 35175935 DOI: 10.2460/ajvr.21.12.0208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The concept of a one-health approach in regenerative medicine has gained tremendous momentum in the scientific and public communities in recent years. Knowledge derived from this approach informs innovative biomedical research, clinical trials, and practice. The ultimate goal is to translate regenerative strategies for curing diseases and improving the quality of life in animals and people. Building and fostering strong and enthusiastic interdisciplinary and transdisciplinary collaboration between teams with a wide range of expertise and backgrounds is the cornerstone to the success of the one-health approach and translational sciences. The veterinarian's role in conducting clinical trials in client-owned animals with naturally occurring diseases is critical and unique as it may potentially inform human clinical trials. The veterinary regenerative medicine and surgery field is on a steep trajectory of discoveries and innovations. This manuscript focuses on oromaxillofacial-region regeneration to exemplify how the concept of interdisciplinary and transdisciplinary collaboration and the one-health approach influenced the authors' work experience at the University of California-Davis.
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Affiliation(s)
- Boaz Arzi
- Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California-Davis, Davis, CA.,Veterinary Institute for Regenerative Cures, School of Veterinary Medicine, University of California-Davis, Davis, CA
| | - Jan A Nolta
- Department of Cell Biology and Human Anatomy, School of Medicine, University of California-Davis, Davis, CA.,Institute for Regenerative Cures, School of Medicine, University of California-Davis, Davis, CA
| | - Natalia Vapniarsky
- Veterinary Institute for Regenerative Cures, School of Veterinary Medicine, University of California-Davis, Davis, CA.,Department of Pathology, Microbiology and Immunology, School of Veterinary Medicine, University of California-Davis, Davis, CA
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Bielajew BJ, Donahue RP, Espinosa MG, Arzi B, Wang D, Hatcher DC, Paschos NK, Wong MEK, Hu JC, Athanasiou KA. Knee orthopedics as a template for the temporomandibular joint. Cell Rep Med 2021; 2:100241. [PMID: 34095872 PMCID: PMC8149366 DOI: 10.1016/j.xcrm.2021.100241] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Although the knee joint and temporomandibular joint (TMJ) experience similar incidence of cartilage ailments, the knee orthopedics field has greater funding and more effective end-stage treatment options. Translational research has resulted in the development of tissue-engineered products for knee cartilage repair, but the same is not true for TMJ cartilages. Here, we examine the anatomy and pathology of the joints, compare current treatments and products for cartilage afflictions, and explore ways to accelerate the TMJ field. We examine disparities, such as a 6-fold higher article count and 2,000-fold higher total joint replacement frequency in the knee compared to the TMJ, despite similarities in osteoarthritis incidence. Using knee orthopedics as a template, basic and translational research will drive the development and implementation of clinical products for the TMJ. With more funding opportunities, training programs, and federal guidance, millions of people afflicted with TMJ disorders could benefit from novel, life-changing therapeutics.
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Affiliation(s)
- Benjamin J Bielajew
- Department of Biomedical Engineering, University of California, Irvine, Irvine, CA, USA
| | - Ryan P Donahue
- Department of Biomedical Engineering, University of California, Irvine, Irvine, CA, USA
| | - M Gabriela Espinosa
- Department of Biomedical Engineering, University of California, Irvine, Irvine, CA, USA
| | - Boaz Arzi
- Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California, Davis, Davis, CA, USA
| | - Dean Wang
- Department of Orthopaedic Surgery, University of California, Irvine Medical Center, Orange, CA, USA
| | | | - Nikolaos K Paschos
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Mark E K Wong
- Department of Oral and Maxillofacial Surgery, University of Texas School of Dentistry, Houston, TX, USA
| | - Jerry C Hu
- Department of Biomedical Engineering, University of California, Irvine, Irvine, CA, USA
| | - Kyriacos A Athanasiou
- Department of Biomedical Engineering, University of California, Irvine, Irvine, CA, USA
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