Analyze Diet
Animals : an open access journal from MDPI2025; 15(10); doi: 10.3390/ani15101426

Thermal Effects of High-Intensity Laser Therapy on the Temporomandibular Joint Area in Clinically Healthy Racehorses-A Pilot Study.

Abstract: The aim of the present study was to assess the thermal effects of high-intensity laser therapy (HILT) on the temporomandibular joint (TMJ) area of clinically healthy Thoroughbred racehorses. The study was conducted on 21 clinically healthy Thoroughbreds in regular training. The horses were subjected to thermographic examinations before and immediately after a HILT session to measure changes in the body surface temperature in the TMJ area. The left TMJ was subjected to therapy, while the contralateral joint served as a control. Statistically significant differences in the body surface temperature in the TMJ area-before and after HILT-were found (p < 0.001). The body surface temperature of the area examined was higher by an average of 2.0 °C after HILT, compared to the temperature measured before HILT. The results prove the thermal effect of HILT in the TMJ area, which can be helpful in determining the appropriate and safe HILT parameters for the treatment of TMJ injuries and inflammation.
Publication Date: 2025-05-15 PubMed ID: 40427303PubMed Central: PMC12108243DOI: 10.3390/ani15101426Google Scholar: Lookup
The Equine Research Bank provides access to a large database of publicly available scientific literature. Inclusion in the Research Bank does not imply endorsement of study methods or findings by Mad Barn.
  • Journal Article

Summary

This research summary has been generated with artificial intelligence and may contain errors and omissions. Refer to the original study to confirm details provided. Submit correction.

This study reveals that high-intensity laser therapy (HILT) causes a significant increase in body surface temperature in the temporomandibular joint (TMJ) area of healthy Thoroughbred racehorses. This suggests that HILT could potentially be effective in treating injuries and inflammation in this area.

Objective of the Study

  • The study aimed to gauge the thermal effects of high-intensity laser therapy (HILT) on the temporomandibular joint (TMJ) area of Thoroughbred racehorses.

Methodology

  • The study was performed on 21 clinically healthy Thoroughbreds that were in regular training.
  • Each horse underwent thermographic examinations before and immediately after a HILT session to assess any changes in the body surface temperature in the TMJ area.
  • The researchers chose to conduct the therapy on the left TMJ, using the right joint as a control for comparison.

Results

  • The researchers found a significant difference (p < 0.001) in the body surface temperature of the TMJ area before and after the HILT session.
  • The body surface temperature of the treated area was, on average, 2.0 °C higher after the HILT, compared to the temperature before the therapy.

Conclusion

  • The outcomes of the study confirmed the thermal effect of HILT on the TMJ area.
  • These results may aid in determining the correct and safe parameters for using HILT in the treatment of TMJ injuries and inflammation in horses.

Cite This Article

APA
Soroko-Dubrovina M, Zielińska P, Dudek KD, Śniegucka K, Nawrot K. (2025). Thermal Effects of High-Intensity Laser Therapy on the Temporomandibular Joint Area in Clinically Healthy Racehorses-A Pilot Study. Animals (Basel), 15(10). https://doi.org/10.3390/ani15101426

Publication

ISSN: 2076-2615
NlmUniqueID: 101635614
Country: Switzerland
Language: English
Volume: 15
Issue: 10

Researcher Affiliations

Soroko-Dubrovina, Maria
  • Institute of Animal Breeding, Wroclaw University of Environmental and Life Sciences, Chelmonskiego 38C, 51-160 Wroclaw, Poland.
Zielińska, Paulina
  • Department of Surgery, Wroclaw University of Environmental and Life Sciences, pl. Grunwaldzki 51, 50-366 Wroclaw, Poland.
Dudek, Krzysztof D
  • Faculty of Mechanical Engineering, Wroclaw University of Science and Technology, 50-370 Wroclaw, Poland.
Śniegucka, Karolina
  • Institute of Animal Breeding, Wroclaw University of Environmental and Life Sciences, Chelmonskiego 38C, 51-160 Wroclaw, Poland.
Nawrot, Karolina
  • Institute of Animal Breeding, Wroclaw University of Environmental and Life Sciences, Chelmonskiego 38C, 51-160 Wroclaw, Poland.

Conflict of Interest Statement

The authors declare no conflicts of interest.

References

This article includes 35 references
  1. Alvites R.D., Maurício A.C.. Equine musculoskeletal pathologies: Clinical approaches and therapeutical perspectives—A review.. Vet. Sci. 2024;11:190.
    pmc: PMC11126110pubmed: 38787162
  2. Zati A., Valent A.. Physical Therapy: New Technologies in Rehabilitation Medicine.. Edizioni Minerva Medica; Turin, Italy: 2006. pp. 162–185. (In English).
  3. Khalid M.Z.. Mechanism of Laser/Light Beam Interaction at Cellular and Tissue Level and Study of the Influential Factors for the Application of Low Level Laser Therapy.. arXiv 20161606.04800.
  4. Thomsen S.. Pathological analysis of photothermal and photomechanical effects of laser-tissue interactions.. Photochem. Photobiol. 1991;53:825–835.
  5. Martins I.S., Silva H.F., Lazareva E.N., Chernomyrdin N.V., Zaytsev K.I., Oliveira L.M., Tuchin V.V.. Measurement of tissue optical properties in a wide spectral range: A review.. Biomed. Opt. Express. 2023;14:249–298.
    doi: 10.1364/BOE.479320pmc: PMC9841994pubmed: 36698664google scholar: lookup
  6. Zhao L., Zhang X., Wang X., Guan X., Zhang W., Ma J.. Recent advances in selective photothermal therapy of tumor.. J. Nanobiotechnol. 2021;19:335.
    doi: 10.1186/s12951-021-01080-3pmc: PMC8543909pubmed: 34689765google scholar: lookup
  7. Insero G., Mercatelli L., Cimmino M.C., Donato R.G., Romano G., Fusi F., Guasti A.. Risks associated with laser radiation reflections in a healthcare environment: A surface reflectance study in the range 250 nm–25 μm.. Healthc. Low-Resour. Settings. 2024;12:S169.
    doi: 10.4081/hls.2024.12802google scholar: lookup
  8. Klifto K.M., Asif M., Hultman C.S.. Laser management of hypertrophic burn scars: A comprehensive review.. Burns Trauma. 2020;8:tkz002.
    doi: 10.1093/burnst/tkz002pmc: PMC7175764pubmed: 32346540google scholar: lookup
  9. Zielińska P., Kiełbowicz Z., Paczuska J.. High intensity laser therapy (HILT) in treatment of orthopedic diseases in horses.. Med. Weter. 2015;7:373–376.
  10. Pluim M., Martens A., Vanderperren K., Sarrazin S., Koene M., Luciani A., Van Weeren P., Delesalle C.. Short- and long-term follow-up of 150 sports horses diagnosed with tendinopathy or desmopathy by ultrasonographic examination and treated with high-power laser therapy.. Res. Vet. Sci. 2018;119:232–238.
    doi: 10.1016/j.rvsc.2018.06.003pubmed: 30005398google scholar: lookup
  11. Quiney L., Murray R., Dyson S.. Management of primary injuries of the medial collateral ligament of the carpus in two horses.. J. Equine Vet. Sci. 2020;86:102878.
    doi: 10.1016/j.jevs.2019.102878pubmed: 32067669google scholar: lookup
  12. Zielińska P., Soroko-Dubrovina M., Dudek K., Ruzhanova-Gospodinova I.S.. A preliminary study of the influence of high intensity laser therapy (HILT) on skin surface temperature and longissimus dorsi muscle tone changes in Thoroughbred racehorses with back pain.. Animals 2023;13:794.
    doi: 10.3390/ani13050794pmc: PMC10000047pubmed: 36899651google scholar: lookup
  13. Zielińska P., Śniegucka K., Kiełbowicz Z.. A case series of 11 horses diagnosed with bone spavin treated with high intensity laser therapy (HILT). J. Equine Vet. Sci. 2023;120:104188.
    doi: 10.1016/j.jevs.2022.104188pubmed: 36470513google scholar: lookup
  14. Zielińska P., Soroko M., Godlewska M., Śniegucka K., Dudek K., Howell K.. Photothermal effects of high-intensity laser therapy on the superficial digital flexor tendon area in clinically healthy racehorses.. Animals 2022;12:1253.
    doi: 10.3390/ani12101253pmc: PMC9137476pubmed: 35625098google scholar: lookup
  15. Godlewska M., Soroko M., Zielińska P.. Assessment of vein diameter and body surface temperature after high-intensity laser therapy (HILT) on the tarsal joint in healthy horses.. J. Equine Vet. Sci. 2020;93:103198.
    doi: 10.1016/j.jevs.2020.103198pubmed: 32972685google scholar: lookup
  16. Godlewska M., Soroko M., Zielińska P., Dudek K.. Use of thermography for assessment of high-intensity laser therapy in racehorses: Pilot study.. Med. Weter. 2020;76:593–596.
    doi: 10.21521/mw.6442google scholar: lookup
  17. Carmalt J.L.. Equine poor performance: The logical, progressive, diagnostic approach to determining the role of the temporomandibular joint.. J. Am. Vet. Med. Assoc. 2024;262:397–404.
    doi: 10.2460/javma.23.09.0513pubmed: 38016273google scholar: lookup
  18. Jasiński T., Turek B., Kaczorowski M., Brehm W., Skierbiszewska K., Domino M.. Equine temporomandibular joint diseases: A systematic review.. Equine Vet. J. 2024:accepted.
    doi: 10.1111/evj.14462pubmed: 39861936google scholar: lookup
  19. Carmalt J.L., Waldner C., Epp T., Finnen A., Townsend H.G.. The effect of acute equine temporomandibular joint inflammation on rein tension and 3D kinematics of movement.. Front. Vet. Sci. 2023;10:10317175.
    pmc: PMC10317175pubmed: 37404776
  20. Cota L., Leale D.M., Baroni M.P.. Regional and disease-related differences in properties of the equine temporomandibular joint disc.. J. Biomech. 2019;83:54–61.
  21. Arredondo J., Agut A., Rodríguez M.J., Sarriá R., Latorre R.. Anatomy of the temporomandibular joint in the cat: A study by microdissection, cryosection and vascular injection.. J. Feline Med. Surg. 2013;15:111–116.
    doi: 10.1177/1098612X12462704pmc: PMC10816651pubmed: 23015066google scholar: lookup
  22. Ekici Ö., Dündar Ü., Gökay G.D., Büyükbosna M.. Evaluation of the efficiency of different treatment modalities in individuals with painful temporomandibular joint disc displacement with reduction: A randomised controlled clinical trial.. Br. J. Oral Maxillofac. Surg. 2022;60:350–356.
    doi: 10.1016/j.bjoms.2021.08.001pubmed: 34756640google scholar: lookup
  23. National Research Council. Nutrient Requirements of Horses.. 6th ed. National Academies Press; Washington, DC, USA: 2007.
  24. Zielińska P., Soroko M., Howell K., Godlewska M., Hildebrand W., Dudek K.. Comparison of the effect of high-intensity laser therapy (HILT) on skin surface temperature and vein diameter in pigmented and non-pigmented skin in healthy racehorses.. Animals 2021;11:1965.
    doi: 10.3390/ani11071965pmc: PMC8300361pubmed: 34209183google scholar: lookup
  25. de la Barra Ortiz H.A., Arias M., Meyer von Schauensee M., Liebano R.E.. Efficacy of high-intensity laser therapy in patients with temporomandibular joint disorders: A systematic review and meta-analysis.. Lasers Med. Sci. 2024;39:210.
    doi: 10.1007/s10103-024-04162-4pubmed: 39112804google scholar: lookup
  26. Pedullà E., Meli G.A., Garufi A., Mandalà M.L., Blandino A., Cascone P.. Neuropathic pain in temporomandibular joint disorders: Case-control analysis by MR imaging.. AJNR Am. J. Neuroradiol. 2009;30:1414–1418.
    doi: 10.3174/ajnr.A1575pmc: PMC7051545pubmed: 19357384google scholar: lookup
  27. Matheson E.M., Fermo J.D., Blackwelder R.S.. Temporomandibular Disorders: Rapid Evidence Review.. Am. Fam. Physician. 2023;107:52–58.
    pubmed: 36689971
  28. Insero G., Romano G.. Laser photo-induced effects: A focus on the photothermal interaction.. Energy Health. 2024;24:1–4.
  29. Hinchcliff K.W., Kaneps A.J., Geor R.J.. Equine Sports Medicine and Surgery.. 3rd ed. Elsevier; London, UK: 2020.
  30. Lee M.W., Suh D.H.. Complications of Laser Therapy and Protective Measures in Dermatology.. Lasers Med. Sci. 2018;33:1077–1085.
  31. Mester E., Mester A.F., Mester A.. The Biomedical Effects of Laser Application.. Lasers Surg. Med. 2000;5:31–39.
    doi: 10.1002/lsm.1900050105pubmed: 3982191google scholar: lookup
  32. Joensen J., Demmink J.H., Johnson M.I., Iversen V.V., Lopes-Martins R.Á.B., Bjordal J.M.. The thermal effects of therapeutic lasers with 810 and 904 nm wavelengths on human skin.. Photomed. Laser Surg. 2011;29:145–153.
    doi: 10.1089/pho.2010.2793pubmed: 21219241google scholar: lookup
  33. Tunley B.V., Henson F.M.D.. Reliability and repeatability of thermographic examination and the normal thermographic image of the thoracolumbar region in the horse.. Equine Vet. J. 2004;36:306–312.
    doi: 10.2746/0425164044890652pubmed: 15163036google scholar: lookup
  34. Na Lampang K., Isawirodom A., Rungsri P.. Correlation and agreement between infrared thermography and a thermometer for equine body temperature measurements.. Vet. World. 2023;16:2464–2470.
  35. Roy R.C., Cockram M., Riley C.B.. Factors affecting the measurement of skin temperature of horses using digital infrared thermography.. Acta Sci. Vet. Sci. 2020;2:9–16.