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Effect of chronic sleep deprivation on condylar cartilage in rats
CONCLUSIONS: Chronic sleep deprivation can increase the expression of IL-1β, TNF-α and VEGF in condylar cartilage and aggravate osteoarthritis. Chronic sleep deprivation can lead to increase of IGF-1 in condylar cartilage tissue, which plays a crucial role in protecting and promoting the reconstruction of condylar cartilage. After chronic sleep deprivation, the expressions of IL-1β, TNF-α, IGF-1 and VEGF in the condylar cartilage of rats were decreased after 1 week of recovery, and the condylar cartilage underwent restorative reconstruction.PMID:36110071
Source: Shanghai Journal of Stomatology - September 16, 2022 Category: Dentistry Authors: Yue-Hui Bai Yang Liu Yu-Lan Cui Shan-Shan Jiang Chen Zhao Source Type: research

Influence of bilateral coronoidectomy on temporomandibular joint stress distribution after costochondral graft reconstruction: a finite element analysis
CONCLUSIONS: Coronoidectomy has an important impact on stress distribution in the TMJ area, and keeping the coronoid process is beneficial to maintain the mechanical balance. Bilateral CCG reconstruction with coronoidectomy for lengthy mandible advancement (≥ 8 mm) may lead to prominent increase in shear force beyond CCG resistance, resulting in a costal-cartilage junction fracture.PMID:36110067
Source: Shanghai Journal of Stomatology - September 16, 2022 Category: Dentistry Authors: Yi Mao Xu-Zhuo Chen Hai-Yi Qin Jin-Ze Zhen Ya-Ting Qiu Liang Huo Shan-Yong Zhang Source Type: research

Effect of chronic sleep deprivation on condylar cartilage in rats
CONCLUSIONS: Chronic sleep deprivation can increase the expression of IL-1β, TNF-α and VEGF in condylar cartilage and aggravate osteoarthritis. Chronic sleep deprivation can lead to increase of IGF-1 in condylar cartilage tissue, which plays a crucial role in protecting and promoting the reconstruction of condylar cartilage. After chronic sleep deprivation, the expressions of IL-1β, TNF-α, IGF-1 and VEGF in the condylar cartilage of rats were decreased after 1 week of recovery, and the condylar cartilage underwent restorative reconstruction.PMID:36110071
Source: Shanghai Journal of Stomatology - September 16, 2022 Category: Dentistry Authors: Yue-Hui Bai Yang Liu Yu-Lan Cui Shan-Shan Jiang Chen Zhao Source Type: research

Influence of bilateral coronoidectomy on temporomandibular joint stress distribution after costochondral graft reconstruction: a finite element analysis
CONCLUSIONS: Coronoidectomy has an important impact on stress distribution in the TMJ area, and keeping the coronoid process is beneficial to maintain the mechanical balance. Bilateral CCG reconstruction with coronoidectomy for lengthy mandible advancement (≥ 8 mm) may lead to prominent increase in shear force beyond CCG resistance, resulting in a costal-cartilage junction fracture.PMID:36110067
Source: Shanghai Journal of Stomatology - September 16, 2022 Category: Dentistry Authors: Yi Mao Xu-Zhuo Chen Hai-Yi Qin Jin-Ze Zhen Ya-Ting Qiu Liang Huo Shan-Yong Zhang Source Type: research

Effect of chronic sleep deprivation on condylar cartilage in rats
CONCLUSIONS: Chronic sleep deprivation can increase the expression of IL-1β, TNF-α and VEGF in condylar cartilage and aggravate osteoarthritis. Chronic sleep deprivation can lead to increase of IGF-1 in condylar cartilage tissue, which plays a crucial role in protecting and promoting the reconstruction of condylar cartilage. After chronic sleep deprivation, the expressions of IL-1β, TNF-α, IGF-1 and VEGF in the condylar cartilage of rats were decreased after 1 week of recovery, and the condylar cartilage underwent restorative reconstruction.PMID:36110071
Source: Shanghai Journal of Stomatology - September 16, 2022 Category: Dentistry Authors: Yue-Hui Bai Yang Liu Yu-Lan Cui Shan-Shan Jiang Chen Zhao Source Type: research

Influence of bilateral coronoidectomy on temporomandibular joint stress distribution after costochondral graft reconstruction: a finite element analysis
CONCLUSIONS: Coronoidectomy has an important impact on stress distribution in the TMJ area, and keeping the coronoid process is beneficial to maintain the mechanical balance. Bilateral CCG reconstruction with coronoidectomy for lengthy mandible advancement (≥ 8 mm) may lead to prominent increase in shear force beyond CCG resistance, resulting in a costal-cartilage junction fracture.PMID:36110067
Source: Shanghai Journal of Stomatology - September 16, 2022 Category: Dentistry Authors: Yi Mao Xu-Zhuo Chen Hai-Yi Qin Jin-Ze Zhen Ya-Ting Qiu Liang Huo Shan-Yong Zhang Source Type: research

Effect of chronic sleep deprivation on condylar cartilage in rats
CONCLUSIONS: Chronic sleep deprivation can increase the expression of IL-1β, TNF-α and VEGF in condylar cartilage and aggravate osteoarthritis. Chronic sleep deprivation can lead to increase of IGF-1 in condylar cartilage tissue, which plays a crucial role in protecting and promoting the reconstruction of condylar cartilage. After chronic sleep deprivation, the expressions of IL-1β, TNF-α, IGF-1 and VEGF in the condylar cartilage of rats were decreased after 1 week of recovery, and the condylar cartilage underwent restorative reconstruction.PMID:36110071
Source: Shanghai Journal of Stomatology - September 16, 2022 Category: Dentistry Authors: Yue-Hui Bai Yang Liu Yu-Lan Cui Shan-Shan Jiang Chen Zhao Source Type: research

Influence of bilateral coronoidectomy on temporomandibular joint stress distribution after costochondral graft reconstruction: a finite element analysis
CONCLUSIONS: Coronoidectomy has an important impact on stress distribution in the TMJ area, and keeping the coronoid process is beneficial to maintain the mechanical balance. Bilateral CCG reconstruction with coronoidectomy for lengthy mandible advancement (≥ 8 mm) may lead to prominent increase in shear force beyond CCG resistance, resulting in a costal-cartilage junction fracture.PMID:36110067
Source: Shanghai Journal of Stomatology - September 16, 2022 Category: Dentistry Authors: Yi Mao Xu-Zhuo Chen Hai-Yi Qin Jin-Ze Zhen Ya-Ting Qiu Liang Huo Shan-Yong Zhang Source Type: research

Effect of chronic sleep deprivation on condylar cartilage in rats
CONCLUSIONS: Chronic sleep deprivation can increase the expression of IL-1β, TNF-α and VEGF in condylar cartilage and aggravate osteoarthritis. Chronic sleep deprivation can lead to increase of IGF-1 in condylar cartilage tissue, which plays a crucial role in protecting and promoting the reconstruction of condylar cartilage. After chronic sleep deprivation, the expressions of IL-1β, TNF-α, IGF-1 and VEGF in the condylar cartilage of rats were decreased after 1 week of recovery, and the condylar cartilage underwent restorative reconstruction.PMID:36110071
Source: Shanghai Journal of Stomatology - September 16, 2022 Category: Dentistry Authors: Yue-Hui Bai Yang Liu Yu-Lan Cui Shan-Shan Jiang Chen Zhao Source Type: research

Influence of bilateral coronoidectomy on temporomandibular joint stress distribution after costochondral graft reconstruction: a finite element analysis
CONCLUSIONS: Coronoidectomy has an important impact on stress distribution in the TMJ area, and keeping the coronoid process is beneficial to maintain the mechanical balance. Bilateral CCG reconstruction with coronoidectomy for lengthy mandible advancement (≥ 8 mm) may lead to prominent increase in shear force beyond CCG resistance, resulting in a costal-cartilage junction fracture.PMID:36110067
Source: Shanghai Journal of Stomatology - September 16, 2022 Category: Dentistry Authors: Yi Mao Xu-Zhuo Chen Hai-Yi Qin Jin-Ze Zhen Ya-Ting Qiu Liang Huo Shan-Yong Zhang Source Type: research

Clinical and magnetic resonance imaging findings in patients with and without improvement after mandibular manipulation and conservative physical therapy for temporomandibular joint disorders.
Temporomandibular disorders (TMDs) present with characteristic clinical signs and symptoms, including temporomandibular joint (TMJ) pain and trismus, joint sounds, and facial pain. The risk of each TMD symptom is significantly higher in joints with anterior disk displacement without reduction (ADDWOR) 1. It has been reported that the prevalence of disk deformation and morphological changes in the TMJ are greater in ADDWOR than ADD with reduction (ADDWR) 2.
Source: Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics - September 16, 2022 Category: ENT & OMF Authors: Chinami Igarashi, Kaoru Kobayashi, Hirokazu Ito, Takashi Eda, Satuki Wake-Morita Tags: Original Article Source Type: research

Meet the Maker: A Portland dentist whose invention makes it less painful to chew
About 30% of dental patients complain of painful jaw joints, according to one study, leading to difficulty chewing and opening and closing of the mouth, accompanied by clicking and popping sounds. Dr. Maryam Motlagh is a Portland dentist who also once suffered from a TMJ disorder. That experience and her frustration with the clunky night guards on the market led her to invent a better mousetrap — or rather, a better jaw aligner. Motlagh, an honor graduate of the OHSU School of Dentistry, used…
Source: bizjournals.com Health Care:Physician Practices headlines - September 15, 2022 Category: American Health Authors: Elizabeth Hayes Source Type: news