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Zhou Q, Zhang Y, Ke J, Li Y. Treatment for adult female temporomandibular joint osteoarthritis-related severe retrognathia and anterior open bite using premolar extraction and customized lingual orthodontic appliance with vertical control for significant compensation: A case report. Int Orthod 2025; 23:101016. [PMID: 40328192 DOI: 10.1016/j.ortho.2025.101016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2025] [Revised: 04/16/2025] [Accepted: 04/20/2025] [Indexed: 05/08/2025]
Abstract
This case report presents a satisfactory lingual appliance orthodontic treatment in a 21-year-old woman diagnosed with Angle Class I anterior open bite (AOB) malocclusion and severe high-angle skeletal Class II retrognathia, which was attributed to bilateral temporomandibular osteoarthritis (TMJOA) and disc perforation. Because of the absence of joint symptoms and presence of bilateral condyles in a stable state, no conservative or surgical treatments were performed for this patient. Four first premolars and four third molars were extracted before bonding of the customized lingual brackets. No miniscrews were used during the orthodontic process. Space closure was performed using the double cable method. Finally, the maxillary molars were found to have intruded and moved mesially during the space-closing process, which resulted in a 2.9° decrease in the mandibular plane angle. Owing to the counter-clockwise rotation of the mandible, the chin moved anteriorly and superiorly. In addition, the anterior teeth were largely retracted because of the advantage of this customized lingual appliance, resulting in significant changes in the nasolabial angle and chin contour. Two-year follow-up examinations further confirmed that no obvious relapse in occlusion and no further condylar resorption, even though bilateral anterior disc displacement without reduction was revealed. In conclusion, a patient with TMJOA-related severe chin retrognathia and AOB treated with a lingual appliance showed satisfactory improvement in facial profile and occlusion.
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Affiliation(s)
- Qiang Zhou
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST), Key Laboratory of Oral Biomedicine Ministry of Education (KLOBM), School and Hospital of Stomatology, Wuhan University, Wuhan, Hubei province, China
| | - Yue Zhang
- Department of Orthodontics, Shenzhen Children's Hospital, Guangdong, China
| | - Jin Ke
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST), Key Laboratory of Oral Biomedicine Ministry of Education (KLOBM), School and Hospital of Stomatology, Wuhan University, Wuhan, Hubei province, China; Department of Trauma and Temporomandibular Joint Surgery, School and Hospital of Stomatology, Wuhan University, Wuhan, Hubei province, China
| | - Yingjie Li
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST), Key Laboratory of Oral Biomedicine Ministry of Education (KLOBM), School and Hospital of Stomatology, Wuhan University, Wuhan, Hubei province, China; Department of Trauma and Temporomandibular Joint Surgery, School and Hospital of Stomatology, Wuhan University, Wuhan, Hubei province, China.
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Ferrillo M, Nucci L, Giudice A, Calafiore D, Marotta N, Minervini G, d'Apuzzo F, Ammendolia A, Perillo L, de Sire A. Efficacy of conservative approaches on pain relief in patients with temporomandibular joint disorders: a systematic review with network meta-analysis. Cranio 2025; 43:258-274. [PMID: 36148997 DOI: 10.1080/08869634.2022.2126079] [Citation(s) in RCA: 42] [Impact Index Per Article: 42.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
OBJECTIVE The aim of this systematic review with meta-analysis was to evaluate the efficacy of conservative interventions in pain relief in patients with intracapsular temporomandibular disorders (TMD). METHODS PubMed, Scopus, and Web of Science were systematically searched until January 1st, 2022 to identify randomized controlled trials (RCTs) presenting patients with diagnosis of intracapsular TMD according to the Diagnostic Criteria for Temporomandibular Disorders (DC/TMD), conservative approaches as interventions, and pain intensity as outcome. RESULTS Out of 3372 papers, 13 RCTs were included, with 844 study participants. Most of them (n = 7) investigated the efficacy of splint appliance. Meta-analysis revealed that rehabilitative interventions had a significant overall effect size of 0.75 [0.17, 1.34], reporting splint appliance and laser therapy as significantly effective treatments. CONCLUSION Findings of this systematic review with network meta-analysis suggested that conservative approaches might be effective in pain relief of intracapsular TMD patients.
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Affiliation(s)
- Martina Ferrillo
- Dentistry Unit, Department of Health Sciences, University of Catanzaro "Magna Graecia", Catanzaro, Italy
| | - Ludovica Nucci
- Dentistry Unit, Multidisciplinary Department of Medical-Surgical and Dental Specialties, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Amerigo Giudice
- Dentistry Unit, Department of Health Sciences, University of Catanzaro "Magna Graecia", Catanzaro, Italy
| | - Dario Calafiore
- Physical Medicine and Rehabilitation Unit, Department of Neurosciences, ASST Carlo Poma, Mantova, Italy
| | - Nicola Marotta
- Physical Medicine and Rehabilitation Unit, Department of Medical and Surgical Sciences, University of Catanzaro "Magna Graecia", Catanzaro, Italy
| | - Giuseppe Minervini
- Dentistry Unit, Multidisciplinary Department of Medical-Surgical and Dental Specialties, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Fabrizia d'Apuzzo
- Dentistry Unit, Multidisciplinary Department of Medical-Surgical and Dental Specialties, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Antonio Ammendolia
- Physical Medicine and Rehabilitation Unit, Department of Medical and Surgical Sciences, University of Catanzaro "Magna Graecia", Catanzaro, Italy
| | - Letizia Perillo
- Dentistry Unit, Multidisciplinary Department of Medical-Surgical and Dental Specialties, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Alessandro de Sire
- Physical Medicine and Rehabilitation Unit, Department of Medical and Surgical Sciences, University of Catanzaro "Magna Graecia", Catanzaro, Italy
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Nozawa M, Fukuda M, Kotaki S, Araragi M, Akiyama H, Ariji Y. Can temporomandibular joint osteoarthritis be diagnosed on MRI proton density-weighted images with diagnostic support from the latest deep learning classification models? Dentomaxillofac Radiol 2025; 54:56-63. [PMID: 39067043 DOI: 10.1093/dmfr/twae040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 05/28/2024] [Accepted: 07/25/2024] [Indexed: 07/30/2024] Open
Abstract
OBJECTIVES This study aimed to clarify the performance of MRI-based deep learning classification models in diagnosing temporomandibular joint osteoarthritis (TMJ-OA) and to compare the developed diagnostic assistance with human observers. METHODS The subjects were 118 patients who underwent MRI for examination of TMJ disorders. One hundred condyles with TMJ-OA and 100 condyles without TMJ-OA were enrolled. Deep learning was performed with 4 networks (ResNet18, EfficientNet b4, Inception v3, and GoogLeNet) using 5-fold cross validation. Receiver operating characteristics (ROC) curves were drawn for each model and diagnostic metrics were determined. The performances of the 4 network models were compared using Kruskal-Wallis tests and post hoc Scheffe tests, and ROCs between the best model and human were compared using chi-square tests, with P < .05 considered significant. RESULTS ResNet18 had areas under the curves (AUCs) of 0.91-0.93 and accuracy of 0.85-0.88, which were the highest among the 4 networks. There were significant differences in AUC and accuracy between ResNet and GoogLeNet (P = .0264 and.0418, respectively). The kappa values of the models were large, 0.95 for ResNet and 0.93 for EfficientNet. The experts achieved similar AUC and accuracy values to the ResNet metrics, 0.94 and 0.85, and 0.84 and 0.84, respectively, but with a lower kappa of 0.67. Those of the dental residents showed lower values. There were significant differences in AUCs between ResNet and residents (P < .0001) and between experts and residents (P < .0001). CONCLUSIONS Using a deep learning model, high performance was confirmed for MRI diagnosis of TMJ-OA.
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Affiliation(s)
- Michihito Nozawa
- Department of Oral Radiology, Osaka Dental University, Osaka 540-0008, Japan
| | - Motoki Fukuda
- Department of Oral Radiology, Osaka Dental University, Osaka 540-0008, Japan
| | - Shinya Kotaki
- Department of Oral Radiology, Osaka Dental University, Osaka 540-0008, Japan
| | - Marino Araragi
- Department of Oral Radiology, Osaka Dental University, Osaka 540-0008, Japan
| | - Hironori Akiyama
- Department of Oral Radiology, Osaka Dental University, Osaka 540-0008, Japan
| | - Yoshiko Ariji
- Department of Oral Radiology, Osaka Dental University, Osaka 540-0008, Japan
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Zhu R, Yu J, Wang F, Chu J, Bao Y, Wang Q, Wei Y, Yuan J. Clinical observation on warming needle moxibustion combined with rehabilitation techniques in the treatment of anterior disc displacement without reduction. Clin Oral Investig 2024; 28:668. [PMID: 39609322 DOI: 10.1007/s00784-024-06072-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2024] [Accepted: 11/24/2024] [Indexed: 11/30/2024]
Abstract
OBJECTIVE To observe the effect of warming needle moxibustion combined with rehabilitation techniques on clinical symptoms and quality of life of patients with anterior disc displacement without reduction (ADDwoR). METHODS This randomized controlled trial included 66patients, with ADDwoR, attending the Hangzhou Hospital of Traditional Chinese Medicine. Patients were assigned to the Experimental (12 sessions of warming needle moxibustion combined with rehabilitation manipulation therapy) and Control (rehabilitation therapy only) group (n = 33, each). Duration of treatment was 4 weeks, with 3 times a week. Outcomes included VAS pain score, maximum mouth opening (MMO), mandibular function impairment score (MFIQ), oral health impact scale (OHIP-14 scale), and mandibular dysfunction index (Fricton score). Safety assessments during treatment included incidence of fainting, broken needle, bleeding, hematoma and scalding. RESULTS After treatment, the VAS scores, mandibular function impairment scores, oral health impact degree scale, and the scores of Dysfunction index (DI), palpation index (PI) and craniomandibular index (CMI) in the two groups were significantly decreased compared with before. While the maximum mouth opening was increased in both groups, the clinical efficacy evaluation showed the total significant rate of the control group was 59%, and the total significant rate of the experimental group was 83%, demonstrating a significant clinical efficacy difference between the two groups. CONCLUSION Compared to targeted rehabilitation exercises only, warming needle moxibustion combined with rehabilitation manipulation can not only improve the pain and maximum mouth opening, but also mandibular function impairment, mandibular joint disorder and oral health of patients with ADDwoR. CLINICAL TRIAL REGISTRATION http://www.chictr.org.cn/index.aspx , identififier: ChiCTR2200059039.
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Affiliation(s)
- Renjie Zhu
- Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Jing Yu
- Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China.
- Department of Acupuncture and Rehabilitation, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China.
| | - Fangli Wang
- Department of Acupuncture and Moxibustion, Zhejiang Province Ningbo City Beilun District Xinqi Street Community Health Service Center, Ningbo, Zhejiang, China
| | - Jiamei Chu
- Department of Acupuncture and Rehabilitation, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Yehua Bao
- Department of Acupuncture and Rehabilitation, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Qin Wang
- Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Yuanye Wei
- Department of Acupuncture and Rehabilitation, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Jianhui Yuan
- Department of Acupuncture and Rehabilitation, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
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Yap AU, Zhang XH, Cao Y, Fu KY. Degenerative temporomandibular joint diseases and their relation with sleep and emotional disturbance. Cranio 2024; 42:762-769. [PMID: 35285424 DOI: 10.1080/08869634.2022.2050976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
OBJECTIVE The relation of degenerative temporomandibular joint (TMJ) diseases (DJDs) with sleep and emotional disturbance were investigated. METHODS CBCT examination of patients (n = 358) with DC/TMD-defined intra-articular temporomandibular disorders was performed and stratified into NN: no DJD and no arthralgia; NA: no DJD with arthralgia; TO: osteoarthrosis; and TR: osteoarthritis. Sleep and emotional disturbance were assessed with the Pittsburgh Sleep Quality Index (PSQI) and Depression Anxiety Stress Scale-21 (DASS-21). Data were evaluated using non-parametric and multivariate logistic regression analyses (α = 0.05). RESULTS Distributions of NN, NA, TO, and TR groups were 23.2%, 27.1%,19.0%, and 30.7%, respectively. No significant differences in total-PSQI/DASS scores were detected among the four groups. The presence of pain and stress predicted poor quality sleep with odds ratios of 10.75 and 1.07, accordingly. CONCLUSION Sleep quality was affected more by arthralgia and stress than the presence of TMJ DJDs.
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Affiliation(s)
- Adrian Ujin Yap
- Center for TMD & Orofacial Pain, Peking University, Hospital & School of Stomatology, Beijing, BJ, China
- Department of Dentistry, Ng Teng Fong General Hospital, Jurong East, Singapore
- Faculty of Dentistry, National University of Singapore, Singapore
- National Dental Research Institute Singapore, National Dental Center Singapore and Duke-NUS Medical School, Singapore Health Services, Singapore
| | - Xian-Han Zhang
- Center for TMD & Orofacial Pain, Peking University, Hospital & School of Stomatology, Beijing, BJ, China
- Department of Oral & Maxillofacial Radiology, Peking University School & Hospital of Stomatology: National Clinical Research Center for Oral Diseases, Beijing, BJ, China
| | - Ye Cao
- Center for TMD & Orofacial Pain, Peking University, Hospital & School of Stomatology, Beijing, BJ, China
- Department of Oral & Maxillofacial Radiology, Peking University School & Hospital of Stomatology: National Clinical Research Center for Oral Diseases, Beijing, BJ, China
| | - Kai-Yuan Fu
- Center for TMD & Orofacial Pain, Peking University, Hospital & School of Stomatology, Beijing, BJ, China
- Department of Oral & Maxillofacial Radiology, Peking University School & Hospital of Stomatology: National Clinical Research Center for Oral Diseases, Beijing, BJ, China
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Fang ZY, Yang Y, Yao Y, Liu SS, Liu LK, Lu SJ, Zeng H, Cai B, Xu LL. Oral behaviors and anxiety are significant predictors of jaw function limitation in patients with anterior disc displacement without reduction. Arch Oral Biol 2024; 166:106033. [PMID: 38986191 DOI: 10.1016/j.archoralbio.2024.106033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 05/23/2024] [Accepted: 06/17/2024] [Indexed: 07/12/2024]
Abstract
OBJECTIVE We aimed to describe jaw function characteristics in patients with anterior disc displacement without reduction (ADDWoR) using the jaw function limitation scale (JFLS), and to investigate the effects of biopsychosocial risk factors on limited jaw function. DESIGN In this cross-sectional study of 636 patients with ADDWoR (females, 568; males, 68), we used the JFLS to assess jaw function. Behavioral, psychological, sociodemographic, and biomedical data were collected. Multivariate logistic regression analysis was used to determine risk factors affecting limited jaw function. A receiver operating characteristic curve was used to evaluate the predictive effect of these risk factors. RESULTS ADDWoR-associated limitations included restricted jaw mobility and mastication, which exceeded median global functional limitations scale scores, especially mouth opening to bite an apple and chewing tough food. Females had greater limitations in jaw mobility, verbal and emotional communication, and overall. Multivariate logistic regression analysis findings indicated that oral behaviors, anxiety, sex, pain intensity, and maximal mouth opening (MMO) were predictive of limited jaw function (area under the curve, 72 %). CONCLUSION Patients with ADDWoR reported mastication and jaw mobility restrictions, with females having more pronounced limitations, and specific risk factors identified as significant predictors of jaw function limitations. Along with pain relief and improvement in MMO, appropriate psychological counseling and oral behavioral correction facilitates recovery of jaw function in such patients.
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Affiliation(s)
- Zhong-Yi Fang
- Department of Rehabilitation Medicine, The Ninth People's Hospital Affiliated to Medical College of Shanghai Jiaotong University, Shanghai, China
| | - Yang Yang
- Department of Rehabilitation Medicine, The Ninth People's Hospital Affiliated to Medical College of Shanghai Jiaotong University, Shanghai, China
| | - Yuan Yao
- Department of Rehabilitation Medicine, The Ninth People's Hospital Affiliated to Medical College of Shanghai Jiaotong University, Shanghai, China
| | - Sha-Sha Liu
- Department of Rehabilitation Medicine, The Ninth People's Hospital Affiliated to Medical College of Shanghai Jiaotong University, Shanghai, China
| | - Li-Kun Liu
- Department of Rehabilitation Medicine, The Ninth People's Hospital Affiliated to Medical College of Shanghai Jiaotong University, Shanghai, China
| | - Shen-Ji Lu
- Department of Rehabilitation Medicine, The Ninth People's Hospital Affiliated to Medical College of Shanghai Jiaotong University, Shanghai, China
| | - Hong Zeng
- Department of Rehabilitation Medicine, The Ninth People's Hospital Affiliated to Medical College of Shanghai Jiaotong University, Shanghai, China
| | - Bin Cai
- Department of Rehabilitation Medicine, The Ninth People's Hospital Affiliated to Medical College of Shanghai Jiaotong University, Shanghai, China
| | - Li-Li Xu
- Department of Rehabilitation Medicine, The Ninth People's Hospital Affiliated to Medical College of Shanghai Jiaotong University, Shanghai, China.
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Fan PD, Han SLR, Cheng QY, Dan RC, Cheng JX, Tian YH, Xiang J, Wang J, Xiong X. Exploring the effect of disc displacement on the risk and severity of condylar erosion in adult temporomandibular disorder patients: A CBCT and MRI study. J Oral Rehabil 2024; 51:1166-1174. [PMID: 38514933 DOI: 10.1111/joor.13688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 01/08/2024] [Accepted: 03/10/2024] [Indexed: 03/23/2024]
Abstract
OBJECTIVE The objective of the study was to investigate the relationship between types of disc displacement (DD) diagnosed by magnetic resonance imaging (MRI), and the risk (presence or absence) and severity of condylar erosion (CE) graded using cone-beam computed tomography (CBCT) in adult Temporomandibular disorders (TMD) patients. METHODS A total of 353 TMD patients (283 females, 70 males) underwent MRI scans to categorise DD as normal (NA), anterior displacement with reduction (ADDR), or anterior displacement without reduction (ADDNR). CE severity was graded on a scale of 0-3 (absence, mild, moderate or severe) using CBCT. To establish the plausibility and cut-off points for CE diagnosis, the severity of CE was then further divided into three classifications: Grade 0 versus 1 + 2 + 3; Grades 0 + 1 versus 2 + 3; Grades 0 + 1 + 2 versus 3. Logistic regression analysis was performed, adjusting for age, gender and joint correlation. RESULTS ADDNR significantly increased the risk of CE compared with NA (OR = 10.04, 95% CI: [6.41, 15.73]) and showed a significant increase in CE severity across all classifications (ORs = 10.04-18.95). The effects of ADDNR were significant in both genders (p < .001) and had a greater impact in females. ADDR was predominantly associated with mild CE. CONCLUSIONS ADDNR significantly increased the risk and severity of CE independent of gender when compared to NA, whereas ADDR was mainly associated with mild CE. Slight cortical discontinuity may represent a subclinical diagnosis requiring further investigation.
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Affiliation(s)
- Pei-Di Fan
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chengdu, Sichuan, China
- West China School of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Sophie Lau Rui Han
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chengdu, Sichuan, China
- West China School of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Qiao-Yu Cheng
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chengdu, Sichuan, China
- West China School of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Rui-Chen Dan
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chengdu, Sichuan, China
- West China School of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Jun-Xin Cheng
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chengdu, Sichuan, China
- West China School of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Yi-Hong Tian
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chengdu, Sichuan, China
- West China School of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Jie Xiang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chengdu, Sichuan, China
- West China School of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Jun Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chengdu, Sichuan, China
- West China School of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Xin Xiong
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chengdu, Sichuan, China
- West China School of Stomatology, Sichuan University, Chengdu, Sichuan, China
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Xu T, Shuai J, Gu Z, Wu M. Salubrinal alleviates cartilage degradation in a rabbit temporomandibular joint osteoarthritis model. Oral Dis 2024; 30:2453-2462. [PMID: 37660361 DOI: 10.1111/odi.14731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 08/08/2023] [Accepted: 08/21/2023] [Indexed: 09/05/2023]
Abstract
OBJECTIVE To investigate and explain the beneficial effects of local intra-articular injection of Salubrinal on temporomandibular joint osteoarthritis (TMJOA) using a rabbit model of anterior disc displacement (ADD). METHODS Rabbits were divided and subjected to surgical ADD. Salubrinal was administered by intra-articular injection in the TMJ every other day for 2 and 4 weeks after operation. Histological examination and TUNEL staining were then performed. Immunohistochemistry, quantitative real-time PCR, and Western blot analysis were employed to evaluate the expression of endoplasmic reticulum (ER) stress-related markers, catabolic factors, extracellular matrix proteins, inflammatory factors, and nuclear factor-kappa B (NF-κB) activation. RESULTS In the ADD groups, we found that Salubrinal partly reversed condylar cartilage deterioration according to the histological analysis. Salubrinal reduced chondrocytes apoptosis while increased matrix components including Collagen II and Aggrecan. Meanwhile, Salubrinal downregulated the catabolic expression of MMP13, ADAMTS5, VEGF, TNF-α, and IL-1β. We also observed that Salubrinal inhibited ER stress activation by reducing the expression of GRP78, CHOP, ATF4, and Caspase-12. Additionally, Salubrinal suppressed the phosphorylation of NF-κB. CONCLUSION These results indicate that Salubrinal alleviates cartilage degradation following ADD, suggesting that intra-articular injection of Salubrinal is a potential therapeutic approach for preventing TMJOA.
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Affiliation(s)
- Ting Xu
- Department of Stomatology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jing Shuai
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou, China
| | - Zhiyuan Gu
- School of Stomatology, Zhejiang Chinese Medical University, Hangzhou, China
| | - Mengjie Wu
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou, China
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López JP, Orjuela MP, González LV, Peraza-Labrador AJ, Díaz-Baez D. Comparison of the Clinical Effectiveness of Intra-Articular Injection with Different Substances After TMJ Arthroscopy: A Systematic Review and Meta-Analysis. J Maxillofac Oral Surg 2024; 23:261-270. [PMID: 38601255 PMCID: PMC11001798 DOI: 10.1007/s12663-023-02047-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Accepted: 10/22/2023] [Indexed: 04/12/2024] Open
Abstract
Objective This systematic review aims to describe the clinical outcomes after TMJ arthroscopy followed by intra articular infiltration with different substances. Materials and Methods A literature search was carried out, the variables were Arthroscopy with different substances, pain and maximal mouth opening. The inclusion criteria were articles that reported infiltration of different substances after arthroscopy. Case series, observational studies, and randomized clinical trials were included. Exclusion criteria were studies that included arthrocentesis, animal studies, connective tissue disease, patients with previous surgeries. Results Of the 5 studies finally included, the population studied were 346 subjects, of which 315 were female. The mean age was 34.7 (16-77). Regarding diagnoses, Wilkes III and Wilkes IV were taken into account. The most commonly used substance was sodium hyaluronate/hyaluronic acid in 4 of the 5 studies. Conclusion Multiple substances have been infiltrated within the temporomandibular joint, with sodium hyaluronate/hyaluronic acid being the most studied. However, the benefit of substances like ATM artroscopia adyuvantes has not been clearly established. It is recommended in future studies that the substances and results be evaluated in the same way to obtain more homogeneous studies.
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Affiliation(s)
- Juan Pablo López
- Hospital Universitario Fundación Santa Fe de Bogotá, Bogotá, Colombia
- Universidad El Bosque, Bogotá, Colombia
| | | | - Luis Vicente González
- Hospital Universitario La Samaritana, Bogotá, Colombia
- Department of Oral Research, School of Dentistry, Institución Universitaria de Colegios de Colombia UNICOC, Bogotá, Colombia
| | - Alberto Jose Peraza-Labrador
- Centro de Odontología Integral, Acarigua, Portuguesa Venezuela
- Department of Diagnosis Sciences, Texas A&M University College of Dentistry, Dallas, TX USA
| | - David Díaz-Baez
- Unit of Basic Oral Investigation (UIBO) Facultad de odontología, Universidad El Bosque, Bogotá, Colombia
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10
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Gadd M, Attard A, Green J, Elledge ROC. Comorbid psychiatric conditions with temporomandibular disorders (TMD) in a tertiary referral clinic. Br J Oral Maxillofac Surg 2024; 62:318-323. [PMID: 38355385 DOI: 10.1016/j.bjoms.2023.12.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 12/26/2023] [Indexed: 02/16/2024]
Abstract
Patients with chronic pain have a higher prevalence of mood disorders with depression and anxiety contributing to higher pain intensity, emotional allodynia, and neuro-anatomical changes. We sought to quantify the prevalence of psychiatric comorbidities (PCs) in a tertiary referral clinic for temporomandibular disorders (TMDs). Medical records of all patients attending clinics run by three tertiary temporomandibular joint (TMJ) surgeons for the period January to April 2022 inclusive were audited for the prevalence of concomitant psychiatric conditions. A total of 166 patients were identified with a female to male ratio of 5:1 and mean (SD) age of 45.1 (15.2) years. A total of 124 (89.9%) patients were tertiary referrals and 72 (43.4%) patients had concomitant psychiatric diagnoses, with 58 (34.9%) being on some form of psychotropic medication (PM) (patients on anticonvulsants for neuropathic pain were not included). A majority of 136 (81.9%) patients had some form of intervention (including Dysport® and minimally invasive surgery) which appeared more common in patients with co-existing psychiatric issues (p < 0.05). A higher proportion of mental health issues exist among TMD patients in a tertiary referral clinic than would be expected in the general population. We suggest a holistic approach to patients with multidisciplinary care taking into account this prevalence to ensure decision-making that contextualises the patient and not simply the pathology.
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Affiliation(s)
- Madeleine Gadd
- College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK.
| | - Alan Attard
- Consultant Oral and Maxillofacial Surgeon, University Hospitals Birmingham NHS Foundation Trust, UK.
| | - Jason Green
- Consultant Oral and Maxillofacial Surgeon, University Hospitals Birmingham NHS Foundation Trust, UK.
| | - Ross O C Elledge
- Consultant Oral and Maxillofacial Surgeon, University Hospitals Birmingham NHS Foundation Trust, UK; Consultant Oral and Maxillofacial Surgeon / Honorary Senior Clinical Lecturer, University Hospitals Birmingham NHS Foundation Trust, UK.
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11
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Lenczewski K, Wójcik M. Functional connections between the temporomandibular joint and the hip joint. FIZJOTERAPIA POLSKA 2024; 24:122-125. [DOI: 10.56984/8zg2ef8r1m] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2024]
Abstract
Introduction. Some of the factors in the formation of temporomandibular joint disorders are changes in the central and peripheral nervous systems. In the context of creating connections between two joints, fascia and the concept of biotensegration are important. The tension created in the tissue is linearly distributed along the entire body. The creation of excessive tension within one structure can lead to the creation of identical tension in a distant structure.
Aim of the study. The research hypothesis was that soft tissue manual treatments of the temporomandibular joint, with a duration of 7 minutes per side would affect increased mobility in the hip joint for the motion of the abduction.
Results. The obtained value for the right and left hip joint shows a strong and positive correlation. This proves that the therapy performed had an effect on increasing the range of motion.
Conclusions. Myofascial release of the tissues of the temporomandibular joint had a positive effect on the increase in the range of motion for hip abduction.
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Affiliation(s)
- Kamila Lenczewski
- Student Research Centre Conocimiento, Poznan University of Physical Education, Faculty of Sport Sciences in Gorzow Wlkp., Poznań, Poland
| | - Małgorzata Wójcik
- Department of Physiotherapy, Poznan University of Physical Education, Faculty of Sport Sciences in Gorzow Wlkp, Poznan, Poland
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12
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Yap AU, Lei J, Park JW, Liu C, Kim SH, Lee BM, Fu KY. Age distribution of East Asian TMD patients and age-related differences in DC/TMD axis I findings. Cranio 2024:1-10. [PMID: 38369853 DOI: 10.1080/08869634.2024.2316081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/20/2024]
Abstract
OBJECTIVES The pattern of age distribution in East Asian temporomandibular disorder (TMD) patients and age-related differences in DC/TMD diagnostic subtypes/categories were evaluated. SUBJECTS AND METHODS TMD patients from two University-based centers in China and South Korea were enrolled. Axis I physical diagnoses were rendered according to DC/TMD. Patients were categorized into six age groups (15-24, 25-34, 35-44, 45-54, 55-64, and 65-84 years; Groups A-F respectively). RESULTS Youths/young adults (Groups A-C) formed 74.1% of TMD patients. TMJ disc displacements (74.9%), arthralgia (49.2%), and degenerative joint disease [DJD] (36.8%) were the most common TMD subtypes. The majority had combined (54.0%) and chronic (58.5%) TMDs. Youths/young adults and middle-aged/old adults had substantially lower frequencies of merely pain-related (6.2-14.5%) and intra-articular (13.8-16.8%) TMDs correspondingly. "Being female" increased the prospects of pain-related/combined TMDs by 96%/49%, respectively. CONCLUSIONS East Asian TMD patients comprised mostly of youths/young adults who had an alarmingly high prevalence of TMJ DJD.
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Affiliation(s)
- Adrian Ujin Yap
- Center for TMD & Orofacial Pain, Peking University School & Hospital of Stomatology, Beijing, China
- Department of Dentistry, Ng Teng Fong General Hospital and Faculty of Dentistry, National University Health System, Singapore, Singapore
- National Dental Research Institute Singapore, National Dental Centre Singapore and Duke-NUS Medical School, Singapore Health Services, Singapore, Singapore
| | - Jie Lei
- Center for TMD & Orofacial Pain, Peking University School & Hospital of Stomatology, Beijing, China
- National Center for Stomatology and National Clinical Research Center for Oral Diseases, Beijing, China
- National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing, China
| | - Ji Woon Park
- Dental Research Institute, Seoul National University, Seoul, Korea
- Department of Dental Biomaterials Science, Seoul National University School of Dentistry, Seoul, Korea
- Department of Oral Medicine, Seoul National University Dental Hospital, Seoul, Korea
| | - Chengge Liu
- Center for TMD & Orofacial Pain, Peking University School & Hospital of Stomatology, Beijing, China
- National Center for Stomatology and National Clinical Research Center for Oral Diseases, Beijing, China
- National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing, China
| | - Seong Hae Kim
- Department of Oral Medicine, Seoul National University Dental Hospital, Seoul, Korea
- Department of Oral Medicine & Oral Diagnosis, Seoul National University School of Dentistry, Seoul, Korea
| | - Byeong-Min Lee
- Dental Research Institute, Seoul National University, Seoul, Korea
| | - Kai-Yuan Fu
- Center for TMD & Orofacial Pain, Peking University School & Hospital of Stomatology, Beijing, China
- National Center for Stomatology and National Clinical Research Center for Oral Diseases, Beijing, China
- National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing, China
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13
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de Souza-Pinto GN, Herreira-Ferreira M, Grossmann E, Brasil DDM, Hara GF, Groppo FC, Iwaki LCV. Assessment of temporomandibular joint bone changes associated with anterior disc displacement: An MRI cross-sectional study. JOURNAL OF STOMATOLOGY, ORAL AND MAXILLOFACIAL SURGERY 2023; 124:101657. [PMID: 37866505 DOI: 10.1016/j.jormas.2023.101657] [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: 09/14/2023] [Revised: 10/17/2023] [Accepted: 10/19/2023] [Indexed: 10/24/2023]
Abstract
OBJECTIVE This cross-sectional study aimed to evaluate the presence of bone changes on magnetic resonance imaging (MRI) scans of patients with temporomandibular joint (TMJ) anterior disc displacement (ADD) with reduction (ADDWR) and without reduction (ADDWoR). METHODS TMJ-MRI scans were screened for the presence of ADD. 285 scans presented ADD, being further divided into ADDWR (n = 188) and ADDWoR (n = 97). Bone changes on the mandibular condyle and articular eminence were also assessed and computed. The chi-square test compared the association of these bone changes with the presence of ADDWR and ADDWoR, with a significance level of 5 %. Also, the prevalence ratio (PR) was calculated. RESULTS In the mandibular condyle, subchondral cyst (p = 0.035, PR = 1.08) and bone edema (p = 0.044, PR = 2.40), more prevalent on ADDWR, and generalized sclerosis (p = 0.015, PR = 1.04), more prevalent on ADDWoR, presented significant association with ADD. On the articular eminence, generalized sclerosis (p = 0.015, PR = 1.04) and articular surface flattening (p = 0.003, PR = 1.19) presented significant association with ADD, both more prevalent on ADDWoR. CONCLUSION Bone changes are usual findings in TMJ with ADD diagnosis. The real influence of ADD is not fully clear, although clinicians should be aware of patients with this condition, to provide an early diagnosis and improve patient´s prognosis.
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Affiliation(s)
| | - Matheus Herreira-Ferreira
- Department of Dentistry, State University of Maringá, Avenida Mandacaru, 1550 - 87080-000, Maringá, Brazil.
| | - Eduardo Grossmann
- Dentistry Faculty, Federal University of Rio Grande do Sul, Rua Ramiro Barcelos, 2492- 90035-004, Porto Alegre, Brazil.
| | - Danieli de Moura Brasil
- Piracicaba Dental School, State University of Campinas, Avenida Limeira, 901 - 13414-903, Piracicaba, Brazil.
| | - Giovana Felipe Hara
- Department of Dentistry, State University of Maringá, Maringá, Paraná, Brazil, Avenida Mandacaru, 1550 - 87080-000, Maringá, Brazil.
| | - Francisco Carlos Groppo
- Piracicaba Dental School, State University of Campinas, Avenida Limeira, 901 - 13414-903, Piracicaba, Brazil.
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14
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Valladares-Neto J, Acioli GMR, Teodoro AB, Evangelista K, Furquim BD', Silva MAG. Conservative and minimally invasive approaches to control idiopathic condylar resorption: a scoping review. Int J Oral Maxillofac Surg 2023; 52:1188-1196. [PMID: 37271625 DOI: 10.1016/j.ijom.2023.05.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 04/28/2023] [Accepted: 05/03/2023] [Indexed: 06/06/2023]
Abstract
Idiopathic condylar resorption (ICR) is an uncommon disease with multiple names that challenges orthodontic and surgical treatments. The aim of this study was to investigate the existing conservative and minimally invasive approaches to controlling ICR. A scoping literature review was conducted. Inclusion criteria were young patients with degenerative joint disease based on the Research Diagnostic Criteria for Temporomandibular Disorders or Diagnostic Criteria for Temporomandibular Disorders (DC/TMD) protocols, or ICR based on the DC/TMD expanded taxonomy protocol. Six electronic databases and the grey literature were searched, without restriction on year or language. Two reviewers independently performed the study selection and data extraction. Ten studies were selected from the 13,953 records identified. The total sample size was 424 patients; the female-to-male ratio was 7:1 and the mean age of the patients was 25.7 years. The main primary outcomes were pain, mandibular dysfunction, and condylar resorption. There is no guarantee of definitive success in the early management of ICR, despite the promising approaches studied, and there is no specific protocol to be followed. Therefore, close post-surgical follow-up is still required. This study highlights the need to standardize the nomenclature and diagnostic criteria, and assess the status of condylar activity/severity in future research.
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Affiliation(s)
- J Valladares-Neto
- Department of Orthodontics, School of Dentistry, Federal University of Goiás, Goiânia, Goiás, Brazil.
| | - G M R Acioli
- Postgraduate Program in Dentistry, School of Dentistry, Federal University of Goiás, Goiânia, Goiás, Brazil
| | - A B Teodoro
- Postgraduate Program in Dentistry, School of Dentistry, Federal University of Goiás, Goiânia, Goiás, Brazil
| | - K Evangelista
- Department of Orthodontics, School of Dentistry, Federal University of Goiás, Goiânia, Goiás, Brazil
| | | | - M A G Silva
- Department of Stomatology, School of Dentistry, Federal University of Goiás, Goiânia, Goiás, Brazil
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15
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Kulkarni R, Akintoye S. A Patient with Moderate-to-Severe Temporomandibular Joint Degenerative Joint Disease and Unilateral Joint Pain Presents for Oral Medicine Consult. Dent Clin North Am 2023; 67:637-639. [PMID: 37714613 DOI: 10.1016/j.cden.2023.05.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/17/2023]
Abstract
A patient presents with severe one-sided temporomandibular joint (TMJ) pain. Workup reveals a diagnosis of TMJ degenerative joint disease, articular disc disorder with reduction, and myofascial pain of the muscles of mastication. The patient's goals were to remain noninvasive in treatment. Conservative recommendations such as physical therapy, analgesics, and current occlusal appliance wear were recommended.
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Affiliation(s)
- Roopali Kulkarni
- Department of Oral Medicine, University of Pennsylvania School of Dental Medicine, Philadelphia, PA, USA.
| | - Sunday Akintoye
- Department of Oral Medicine, University of Pennsylvania School of Dental Medicine, Philadelphia, PA, USA
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16
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Yap AU, Marpaung C. Correlates between temporomandibular disorder severity, emotional distress, and eudaimonic well-being among young adults. Oral Dis 2023; 29:2780-2788. [PMID: 35942541 DOI: 10.1111/odi.14343] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 07/09/2022] [Accepted: 07/23/2022] [Indexed: 11/30/2022]
Abstract
OBJECTIVES This study examined the correlates between severity of temporomandibular disorders (TMDs), emotional distress, and eudaimonic well-being. SUBJECTS AND METHODS TMD severity, negative emotions, and eudaimonia were assessed with the Fonseca Anamnestic Index (FAI), Depression, Anxiety, Stress Scales-21 (DASS-21), and Psychological Well-being Scale-18 (PWBS-18) in a cohort of community young adults. Statistical evaluations were done with non-parametric tests/correlation and multivariate regression analyses (α = 0.05). RESULTS Amongst the 873 participants (mean age 19.8 ± 1.66 years), 40.7%, 49.0%, and 10.3% had no (NT), mild (MT), and moderate-to-severe (ST) TMD, respectively. Significant differences in total-DASS, depression, anxiety, and stress were ST ≥ MT > NT. Significant variances in total-PWSB and self-acceptance were NT > MT > ST while that for environmental mastery, positive relations, and purpose in life were NT > MT, ST. An inverse relationship was discerned between total-DASS and total-PWBS (correlation coefficient = -0.54). The prospect of ST was increased by anxiety but reduced by positive relations and self-acceptance. CONCLUSIONS Young adults with mild and moderate-to-severe TMD experienced substantially higher emotional distress and lower eudaimonia than those with no TMD. As emotional distress and eudaimonic well-being are interrelated, positive psychological interventions may be beneficial for managing TMD-related psychosocial disabilities.
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Affiliation(s)
- Adrian Ujin Yap
- Department of Dentistry, Ng Teng Fong General Hospital and Faculty of Dentistry, National University Health System, Singapore
- National Dental Research Institute, National Dental Centre Singapore and Duke-NUS Medical School, SingHealth, Singapore
- Department of Prosthodontics, Faculty of Dentistry, Trisakti University, Jakarta, Indonesia
| | - Carolina Marpaung
- Department of Prosthodontics, Faculty of Dentistry, Trisakti University, Jakarta, Indonesia
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17
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Yap AU, Lei J, Zhang XH, Fu KY. TMJ degenerative joint disease: relationships between CBCT findings, clinical symptoms, and signs. Acta Odontol Scand 2023; 81:562-568. [PMID: 37211630 DOI: 10.1080/00016357.2023.2215317] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 05/15/2023] [Indexed: 05/23/2023]
Abstract
OBJECTIVES The relationships between cone-beam computed tomography (CBCT) findings, Temporomandibular disorder (TMD) symptoms, and signs were investigated in patients with TMJ degenerative joint disease (DJD). MATERIAL AND METHODS Adult patients with Diagnostic Criteria for TMDs (DC/TMD)-defined intra-articular conditions were enrolled and subjected to CBCT assessment. The participants were organized into three groups, namely no (NT), early (ET), and late (LT) TMJ DJD based on radiographic findings. TMD symptoms/signs were appraised using the DC/TMD methodology. Statistical analyses were performed using Chi-square/non-parametric tests and Kappa statistics (α = 0.05). RESULTS The mean age of the participants (n = 877) was 30.60 ± 11.50 years (86.6% women). NT, ET, and LT were observed in 39.7%, 17.0%, and 43.3% of the study sample. Significant differences in the prevalence of TMD symptoms (TMD pain, TMJ sounds, opening, and closing difficulty) and signs (TMD/TMJ pain, TMJ clicking/crepitus, and opening limitation) were discerned among the three groups (p ≤ .001). TMD/TMJ pain and opening difficulty/limitation were more prevalent in early rather than late degenerative changes. While moderate agreements between symptoms and signs were observed for TMD pain/opening limitation, the concurrence for TMJ sounds was fair. CONCLUSIONS Young adults with TMJ sounds and pain should be examined with CBCT to establish the extent/progress of osseous changes.
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Affiliation(s)
- Adrian Ujin Yap
- Center for TMD & Orofacial Pain, Peking University School & Hospital of Stomatology, Beijing, P.R. China
- Department of Dentistry, Ng Teng Fong General Hospital, and Faculty of Dentistry, National University Health System, Singapore
- National Dental Research Institute Singapore, National Dental Centre Singapore and Duke-NUS Medical School, Singapore Health Services, Singapore
| | - Jie Lei
- Center for TMD & Orofacial Pain, Peking University School & Hospital of Stomatology, Beijing, P.R. China
- Department of Oral & Maxillofacial Radiology, Peking University School & Hospital of Stomatology, Beijing, P.R. China
- National Center for Stomatology and National Clinical Research Center for Oral Diseases, Beijing, P.R. China
- National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing, P.R. China
- Beijing Key Laboratory of Digital Stomatology, Beijing, P.R. China
| | - Xiao-Han Zhang
- Center for TMD & Orofacial Pain, Peking University School & Hospital of Stomatology, Beijing, P.R. China
- Department of Oral & Maxillofacial Radiology, Peking University School & Hospital of Stomatology, Beijing, P.R. China
- National Center for Stomatology and National Clinical Research Center for Oral Diseases, Beijing, P.R. China
- National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing, P.R. China
- Beijing Key Laboratory of Digital Stomatology, Beijing, P.R. China
| | - Kai-Yuan Fu
- Center for TMD & Orofacial Pain, Peking University School & Hospital of Stomatology, Beijing, P.R. China
- Department of Oral & Maxillofacial Radiology, Peking University School & Hospital of Stomatology, Beijing, P.R. China
- National Center for Stomatology and National Clinical Research Center for Oral Diseases, Beijing, P.R. China
- National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing, P.R. China
- Beijing Key Laboratory of Digital Stomatology, Beijing, P.R. China
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18
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Yap AU, Lei J, Fu KY, Kim SH, Lee BM, Park JW. DC/TMD Axis I diagnostic subtypes in TMD patients from Confucian heritage cultures: a stratified reporting framework. Clin Oral Investig 2023; 27:4459-4470. [PMID: 37243820 DOI: 10.1007/s00784-023-05067-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Accepted: 05/07/2023] [Indexed: 05/29/2023]
Abstract
OBJECTIVES This study proposed a conceptual framework for reporting Diagnostic Criteria for Temporomandibular Disorders (DC/TMD) Axis I conditions and investigated the prevalence of TMD subtypes/categories in patients from Confucian heritage cultures. Variances in gender, age, and TMD chronicity between Chinese (CN) and Korean (KR) patients were also explored. MATERIALS AND METHODS Subjects were recruited from consecutive patients seeking care at two University-based centers in Beijing and Seoul. Eligible patients completed a demographic survey as well as the DC/TMD Symptom Questionnaire and were clinically examined according to the DC/TMD methodology. Axis I diagnoses were subsequently rendered with the DC/TMD algorithms and documented using the stratified reporting framework. Statistical evaluations were performed with chi-square, Mann-Whitney U tests, and logistic regression analysis (α = 0.05). RESULTS Data of 2008 TMD patients (mean age 34.8 ± 16.2 years) were appraised. Substantial differences in female-to-male ratio (CN > KR), age (KR > CN), and TMD duration (KR > CN) were observed. Ranked frequencies of the most common Axis I diagnoses were: CN - disc displacements (69.7%) > arthralgia (39.9%) > degenerative joint disease (36.7%); KR - disc displacements (81.0%) > myalgia (60.2%) > arthralgia (56.1%). Concerning TMD categories, notable differences in the prevalence of intra-articular (CN 55.1% > KR 15.4%) and combined (KR 71.8% > CN 33.4%) TMDs were discerned. CONCLUSIONS Though culturally similar, the two countries require disparate TMD care planning/prioritization. While TMJ disorders in children/adolescents and young adults should be emphasized in China, the focus in Korea would be on TMD pain in young and middle-aged adults. CLINICAL RELEVANCE Besides culture, other variables including socioeconomic, environmental, and psychosocial factors can influence the clinical presentation of TMDs. Chinese and Korean TMD patients exhibited significantly more intra-articular and combined TMDs respectively.
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Affiliation(s)
- Adrian Ujin Yap
- Center for TMD & Orofacial Pain, Peking University School & Hospital of Stomatology, Beijing, China
- Department of Dentistry, Ng Teng Fong General Hospital and Faculty of Dentistry, National University Health System, Singapore, Singapore
- National Dental Research Institute Singapore, National Dental Centre Singapore and Duke-NUS Medical School, Singapore Health Services, Singapore, Singapore
| | - Jie Lei
- Center for TMD & Orofacial Pain, Peking University School & Hospital of Stomatology, Beijing, China
- National Center for Stomatology and National Clinical Research Center for Oral Diseases, Beijing, China
- National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing, China
| | - Kai Yan Fu
- Center for TMD & Orofacial Pain, Peking University School & Hospital of Stomatology, Beijing, China
- National Center for Stomatology and National Clinical Research Center for Oral Diseases, Beijing, China
- National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing, China
| | - Seong Hae Kim
- Department of Dental Biomaterials Science, Seoul National University School of Dentistry, Seoul, Korea
- Dental Research Institute, Seoul National University, Seoul, Korea
| | - Byeong-Min Lee
- Department of Oral Medicine, Seoul National University Dental Hospital, Seoul, Korea
| | - Ji Woon Park
- Dental Research Institute, Seoul National University, Seoul, Korea.
- Department of Oral Medicine, Seoul National University Dental Hospital, Seoul, Korea.
- Department of Oral Medicine & Oral Diagnosis, Seoul National University School of Dentistry, 101 Daehak-Ro, Jongno-Gu, Seoul, Korea.
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Topaloglu Yasan G, Adiloglu S, Tuz HH, Sahar D. Evaluation of clinical signs and magnetic resonance imaging findings in patients with temporomandibular disorders. J Craniomaxillofac Surg 2023; 51:441-447. [PMID: 37604767 DOI: 10.1016/j.jcms.2023.08.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 07/24/2023] [Accepted: 08/14/2023] [Indexed: 08/23/2023] Open
Abstract
This study assessed the relationship between clinical symptoms and magnetic resonance imaging (MRI) findings in temporomandibular disorders (TMD). A total of 324 temporomandibular joints (TMJs) from 162 patients were included. The TMJs were divided into three groups based on disc positions on MRI: normal disc position, anterior disc displacement with reduction (ADDwR), and anterior disc displacement without reduction (ADDwoR). Clinical findings included TMJ pain, TMJ noise, and maximum mouth opening (MMO). The disc configuration, disc positions, condylar morphology, and joint effusion were evaluated in proton density-weighted and T2-weighted open and closed-mouth sagittal sections. Patients comprised 135 females and 27 males, with a mean age of 37.63 ± 13.86 years. The VAS score was significantly higher in ADDwoR than in ADDwR (p = 0.007). Condylar sclerosis (β coefficient: 1.449, 95% confidence interval (CI): 0.505-2.393, p = 0.003) and condylar flattening (β coefficient: 1.024, 95% CI: 0.209-1.840, p = 0.014) had higher VAS scores than the other MRI findings in multiple regression analyses. Limited mouth opening (MO) was independently associated with ADDwoR. ADDwoR had a higher risk of having limited MO than normal disc position (odds ratio: 5.268), while there were no associations between limited MO and other MRI findings. None of the MRI findings showed significant performance in predicting TMJ noise. The convex and folded disc configuration percentages, the frequencies of osteophyte formation, and grade 3 effusion were significantly higher in the ADDwoR group. More severe clinical symptoms and a higher degree of disc deformity, osteophyte formation, and high-grade effusion were shown to be associated with ADDwoR.
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Affiliation(s)
| | - Selen Adiloglu
- Hacettepe University, Department of Oral and Maxillofacial Surgery, Turkey
| | - Hakan H Tuz
- Hacettepe University, Department of Oral and Maxillofacial Surgery, Turkey
| | - Dilek Sahar
- Hacettepe University, Department of Oral and Maxillofacial Surgery, Turkey
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Knezevic MJ, Knezevic A, Boban J, Maletin A, Milekic B, Koprivica DD, Puskar T, Semnic R. High-Field Magnetic Resonance Imaging of the Temporomandibular Joint Low Agreement with Clinical Diagnosis in Asymptomatic Females. Diagnostics (Basel) 2023; 13:1986. [PMID: 37370881 DOI: 10.3390/diagnostics13121986] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 05/29/2023] [Accepted: 06/01/2023] [Indexed: 06/29/2023] Open
Abstract
(1) Background: The aim of this study was to investigate the agreement between a clinical diagnosis based on research diagnostic criteria/temporomandibular disorders (RDC/TMD) and high-field magnetic resonance imaging (MRI) findings of temporomandibular joints (TMJs) in asymptomatic females. (2) Methods: A prospective study on 100 females (200 TMJs) was performed, using clinical examinations (RDC/TMD) and same-day MRIs of TMJs on a 3T MR unit. The inclusion criteria were as follows: females, age > 18, the presence of upper and lower incisors, and an understanding of the Serbian language. Descriptive statistics (means and standard deviations) and ANOVA with a post hoc Tukey test for differences among the patient subgroups was performed. The agreement between the clinical and MRI findings was determined using Cohen's kappa coefficient (k < 0.21 slight, 0.21-0.4 fair, 0.41-0.6 moderate, 0.61-0.8 substantial, and 0.81-1 almost perfect). The statistical significance was set at p ≤ 0.05. (3) Results: Normal findings were observed in 86.7%, disc dislocation (DD) was observed in 9.2%, and arthralgia/osteoarthritis/osteoarthrosis was observed in 2.6% of TMJs using RDC/TMD. On the MRI, normal findings were observed in 50.5%, disc dislocation was observed in 16.3%, and arthralgia/osteoarthritis/osteoarthrosis was observed in 23.5% of TMJs. The anterior DD with reduction showed fair agreement of the clinical and MRI findings (k = 0.240, p < 0.001) compared with the DD without reduction (k = 0.355, p < 0.001). Both showed high specificity (94.9% and 99.4%) but low sensitivity (24.2% and 25.0%). The sensitivity in osteoarthritic changes was low (4.8%), but the specificity remained high (96.2%). (4) Conclusions: The sensitivity of the clinical examination remains low compared with 3T MRI, especially in osteoarthritic changes and anterior DD with reduction. However, the number of false positive diagnoses using RDC/TMD is low in asymptomatic patients. RDC/TMD remains a sensible method for establishing a clinical diagnosis and avoiding the overtreatment of asymptomatic patients.
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Affiliation(s)
| | - Aleksandar Knezevic
- Faculty of Medicine Novi Sad, University of Novi Sad, 21000 Novi Sad, Serbia
- Medical Rehabilitation Clinic Clinical Centre of Vojvodina, 21000 Novi Sad, Serbia
| | - Jasmina Boban
- Faculty of Medicine Novi Sad, University of Novi Sad, 21000 Novi Sad, Serbia
- Institute for Oncology, Center for Imaging Diagnostic, 21208 Sremska Kamenica, Serbia
| | - Aleksandra Maletin
- Faculty of Medicine Novi Sad, University of Novi Sad, 21000 Novi Sad, Serbia
| | - Bojana Milekic
- Faculty of Medicine Novi Sad, University of Novi Sad, 21000 Novi Sad, Serbia
- Dentistry Clinic of Vojvodina, 21000 Novi Sad, Serbia
| | | | - Tatjana Puskar
- Faculty of Medicine Novi Sad, University of Novi Sad, 21000 Novi Sad, Serbia
- Dentistry Clinic of Vojvodina, 21000 Novi Sad, Serbia
| | - Robert Semnic
- Department of Radiology, Upssala University Hospital, 752 36 Upssala, Sweden
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Zhai X, Huang D, Hu Y, Li X, Wang J, Ma J, Li H, Hu M, Liu H, Jiang H. Cone-beam computed tomographic characteristics in degenerative temporomandibular joint disease patients with chewing side preference. Clin Oral Investig 2023; 27:2267-2276. [PMID: 37017756 DOI: 10.1007/s00784-023-04961-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 03/17/2023] [Indexed: 04/06/2023]
Abstract
OBJECTIVES This study is aimed at assessing the Cone-beam computed tomographic (CBCT) characteristics of temporomandibular joints (TMJ) in degenerative temporomandibular joint disease (DJD) patients with chewing side preference (CSP). MATERIALS AND METHODS CBCT images of 98 patients with DJD (67 with CSP and 31 without CSP) and 22 asymptomatic participants without DJD were measured retrospectively to compare the osteoarthritic changes and the morphology of TMJ. Quantitative analysis of the TMJ radiographic images was performed to present a comparison between the three inter-group groups and between the two sides of the joints. RESULTS The frequencies of the articular flattening and surface erosion occur more often in the preferred side joints of DJD patients with CSP than the contralateral side. In addition, the horizontal angle of condyle, the depth of glenoid fossa (DGF), and the inclination of articular eminence (IAE) were larger in DJD patients with CSP than that in asymptomatic participants (p<0.05). Also, the condylar anteroposterior dimension of preferred side joints was significantly less than that of non-preferred side (p=0.026), while the width of condyles (p=0.041) and IAE (p=0.045) was greater. CONCLUSIONS DJD patients with CSP appear to have a higher prevalence of osteoarthritic changes, with the morphological changes such as flat condyle, deep glenoid fossa, and steep articular eminence, which might be considered the characteristic imaging features. CLINICAL RELEVANCE This study found that CSP is a predisposing factor for the development of DJD, and attention should be paid to the existence of CSP in DJD patients during the clinical practice.
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Affiliation(s)
- Xiaoting Zhai
- Medical School of Chinese PLA, Beijing, China
- Department of Stomatology, First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Dongzong Huang
- Medical School of Chinese PLA, Beijing, China
- Department of Stomatology, First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Yifan Hu
- Medical School of Chinese PLA, Beijing, China
- Department of Stomatology, First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Xiaoxing Li
- Medical School of Chinese PLA, Beijing, China
- Department of Stomatology, First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Jiazhu Wang
- Department of Radiology, First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Junli Ma
- Department of Stomatology, General Hospital of Southern Theater of PLA, Guangzhou, China
| | - Hongbo Li
- Department of Stomatology, First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Min Hu
- Department of Stomatology, First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Hongchen Liu
- Department of Stomatology, First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Hua Jiang
- Department of Stomatology, First Medical Center of Chinese PLA General Hospital, Beijing, China.
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Işık G, Kenç S, Koyuncu BÖ, Günbay S, Günbay T. Does the Use of Injectable Platelet-Rich Fibrin After Arthrocentesis for Disc Displacement Without Reduction Improve Clinical Outcomes? J Oral Maxillofac Surg 2023:S0278-2391(23)00211-2. [PMID: 36924792 DOI: 10.1016/j.joms.2023.02.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 02/19/2023] [Accepted: 02/20/2023] [Indexed: 03/14/2023]
Abstract
PURPOSE Many studies have reported the role of arthrocentesis to alleviate symptoms of patients with disc displacement without reduction (DDWoR). Nevertheless, the benefit of injectable platelet-rich fibrin (i-PRF) remains unclear. The aim of this study was to answer the following question: among patients with DDWoR, do those treated with intra-articular injection of i-PRF after arthrocentesis, when compared to those treated with arthrocentesis only, have better clinical outcomes in terms of pain reduction and improvement of jaw movement? MATERIALS AND METHODS This single-blind randomized, controlled study included patients with diagnosed DDWoR, in the Department of Oral and Maxillofacial Surgery at the School of Dentistry, Ege University, who had localized joint pain and limited range of motion. Patients were treated either with arthrocentesis (AC group) or arthrocentesis in combination with intra-articular i-PRF injection (AC + i-PRF group). The predictor variable was treatment (ie, arthrocentesis with or without i-PRF). The primary outcome variable was pain (visual analog scale). The secondary outcome variables were maximum mouth opening, lateral and protrusive movements. Outcome variables were recorded at pretreatment and at the postoperative 1st, 2nd, 3rd, 6th, and 12th months. Statistical analysis was performed using the Brunner-Langer model, with a significance level P < .05. RESULTS This study comprised 76 patients (34 females/4 males, mean age 47.2 ± 9.1 for the AC + i-PRF group; 35 females/3 males, mean age 46.8 ± 10.2 for the AC group). The treatment success rate was 73.7% for the AC group and 100% for the AC + i-PRF group (P = .012). Pain levels in the AC + i-PRF group were found to decrease more than the AC group over 12 months postoperatively (palpation: -6.9 ± 1.2 vs -5.3 ± 1.3; chewing: -6.9 ± 1.5 vs -5.1 ± 1.7; jaw movements: -6.9 ± 1.1 vs -5.1 ± 1.4). This difference was statistically significant (P < .001). The degree of jaw movement in the AC + i-PRF group was found to increase more than the AC group over 12 months postoperatively (maximum mouth opening: 8.0 ± 2.1 vs 4.9 ± 2.0; contralateral: 1.8 ± 0.8 vs 0.2 ± 1.0; ipsilateral: 2.9 ± 1.3 vs 0.8 ± 1.5; protrusive: 2.6 ± 1.1 vs 0.8 ± 1.3). This difference was statistically significant (P < .001). CONCLUSION Intra-articular injection of i-PRF after arthrocentesis produced greater improvements in pain reduction and jaw movement when compared to arthrocentesis only. These results indicate that i-PRF used in combination with arthrocentesis is an effective adjunctive treatment.
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Affiliation(s)
- Gözde Işık
- Assistant Professor, Ege University, School of Dentistry, Department of Oral and Maxillofacial Surgery.
| | - Selin Kenç
- Research Assistant, Ege University, School of Dentistry, Department of Oral and Maxillofacial Surgery
| | - Banu Özveri Koyuncu
- Professor, Ege University, School of Dentistry, Department of Oral and Maxillofacial Surgery
| | - Sevtap Günbay
- Professor, Ege University, School of Dentistry, Department of Oral and Maxillofacial Surgery
| | - Tayfun Günbay
- Professor, Ege University, School of Dentistry, Department of Oral and Maxillofacial Surgery
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de Holanda GA, de Holanda TA, Boscato N, Casarin M. Temporomandibular joint involvement in individuals with ankylosing spondylitis: A scoping review. Arch Oral Biol 2023; 146:105609. [PMID: 36565536 DOI: 10.1016/j.archoralbio.2022.105609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 11/22/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022]
Abstract
OBJECTIVE This scoping review aimed to identify the signs and symptoms of temporomandibular joint (TMJ) involvement in individuals with ankylosing spondylitis (AS). DESIGN Systematic literature searches were performed on PubMed, Embase, and Web of Science databases (up to April 2022). Studies with signs and symptoms of temporomandibular joint disorder (TMD) in adults with AS were included. TMJ outcomes were extracted and analyzed qualitatively. RESULTS From 527 potentially eligible studies, 22 were included. A total of 4309 individuals with AS were evaluated, aged between 18 and 80 years, being males approximately 65% of the sample. Signs and symptoms of pain, tenderness to palpation on TMJ and masticatory muscles, joint noises (i.e., clicking or crepitus), limited mouth opening, disc displacement, and radiographic changes were often observed. CONCLUSION The available evidence shows that different signs and symptoms of TMD co-occur with AS disease, with a higher prevalence of TMD observed in individuals with AS than in individuals without AS. Indeed, it seems that individuals suffering from AS disease have an increased risk of developing TMD.
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Affiliation(s)
| | | | - Noéli Boscato
- Graduate Program in Dentistry, Universidade Federal de Pelotas (UFPel), Pelotas, RS, Brazil.
| | - Maísa Casarin
- Graduate Program in Dentistry, Universidade Federal de Pelotas (UFPel), Pelotas, RS, Brazil.
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Clinical and magnetic resonance imaging findings in patients with and without improvement after mandibular manipulation and conservative physical therapy for temporomandibular joint disorders. Oral Surg Oral Med Oral Pathol Oral Radiol 2023; 135:294-302. [PMID: 36307302 DOI: 10.1016/j.oooo.2022.09.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 08/26/2022] [Accepted: 09/05/2022] [Indexed: 11/21/2022]
Abstract
OBJECTIVE This study compared clinical and magnetic resonance imaging (MRI) findings in patients with anterior disk displacement without reduction (ADDWOR) who improved to anterior disk displacement with reduction (ADDWR) vs. patients who did not improve after mandibular manipulation (MM) and conservative self-administered physical therapy (CSAPT). STUDY DESIGN Of 15 patients diagnosed with ADDWOR by MRI, 7 improved to ADDWR (WOR-WR) and 8 did not improve (WOR-WOR). The clinical and MRI findings before and after therapy were compared in each group. RESULTS Significant differences between the groups included age, period of awareness of trismus, and maximum mouth opening (MMO). The MRI findings revealed significant differences in the degree of ADD and morphology of the disk and condyle. MMO significantly improved in the WOR-WR group between initial and follow-up visits. CONCLUSION Patients who were successfully treated with MM and CSAPT tended to be <30 years old, with a longer period of awareness of trismus, MMO <40 mm, a slight or moderate degree of ADD, no deformity of the disk, and no morphologic change in the condyle. Patients with ADDWOR who are treated with MM and CSAPT require an accurate clinical examination and MRI before treatment.
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Alhammadi MS. Dimensional and Positional Characteristics of the Temporomandibular Joint of Skeletal Class II Malocclusion with and without Temporomandibular Disorders. J Contemp Dent Pract 2022; 23:1203-1210. [PMID: 37125517 DOI: 10.5005/jp-journals-10024-3441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
AIM This study sought to evaluate dimensional and positional temporomandibular joint (TMJ) features in three-dimensions in skeletal class II malocclusion with and without temporomandibular disorders (TMDs). MATERIALS AND METHODS A total of 91 (182 joints) adult patients were divided into the following two groups: (1) Group I - TMD (n = 56; 112 joints) and (2) group II - non-TMD (n = 35; 70 joints). Dimensional and positional TMJ characteristics including glenoid fossae, mandibular condyles, and joint spaces were assessed using cone-beam computed tomography (CBCT). RESULTS The mandibular fossa in the TMD group was significantly more lateral than in the non-TMD group, and the mandibular fossa anterior wall inclination to the horizontal plane showed a significantly more vertically inclined wall in the TMD group compared to the non-TMD group. Significantly vertical mandibular condylar changes in the form of less vertical inclination, more vertical position, and lower vertical dimension (height) in addition to more upward position within the joint space were found. The TMD group showed significantly decreased superior and posterior joint spaces in addition to significantly increased medial joint spaces. CONCLUSION Patients with TMDs are associated with laterally positioned mandibular fossa with the more vertically inclined anterior wall. They are characterized by vertical mandibular condylar changes in the form of less vertical inclination, more vertical position, and lower vertical dimension (height) in addition to more upward positioning within the joint space is accompanied by a decrease in superior and posterior and an increase in medial joint spaces. CLINICAL SIGNIFICANCE The TMJ characteristics of skeletal class II make it more susceptible to TMDs and any orthodontic and/or surgical interventions in a direction possibly change these characteristics are to be considered.
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Affiliation(s)
- Maged S Alhammadi
- Department of Preventive Dental Sciences, College of Dentistry, Jazan University, Jazan, Saudi Arabia, Phone: +00966502209874, e-mail: , Orcid: https://orcid.org/0000-0002-1402-0470
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Advances in Tissue Engineering of the Temporomandibular Joint Disc: An Overview of Current Status and Future Directions. Int J Dent 2022; 2022:9696378. [PMID: 35910087 PMCID: PMC9337926 DOI: 10.1155/2022/9696378] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 05/08/2022] [Accepted: 07/08/2022] [Indexed: 11/17/2022] Open
Abstract
Advances in tissue engineering have progressed to potentially offer a solution to temporomandibular joint disc (TMJ) disorders not amenable to conservative therapies. Conclusive treatment options for patients with end-stage disc disorders requires discectomy and reconstruction of the articular disc with various materials. Tissue engineering TMJ disc is a promising alternative to the limited and sometimes inadequate clinical options in the management of such disorders. However, tissue engineering is far from completion for the TMJ disc regeneration. This review briefly discusses the properties of native disc, the mechanism by which TMJ disorders manifest, and how a tissue engineered disc could assuage the problems inherent in the management of such disorders. Furthermore, the review addresses and provides updates to relevant themes of tissue engineering in regards to the TMJ disc, namely, the scaffolds, cells and biomarkers, hurdles in tissue engineering of the disc, and its application in translation to the clinical practice and future directions.
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New curriculum standards for teaching temporomandibular disorders in dental schools. J Am Dent Assoc 2022; 153:395-398. [DOI: 10.1016/j.adaj.2021.11.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 11/12/2021] [Accepted: 11/23/2021] [Indexed: 11/16/2022]
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A clinical and MRI retrospective cohort study of patients with juvenile idiopathic arthritis (JIA) to determine if initial temporomandibular joint (TMJ) examination findings are associated with severity of TMJ arthritis. J Craniomaxillofac Surg 2022; 50:328-335. [DOI: 10.1016/j.jcms.2022.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Revised: 12/19/2021] [Accepted: 02/10/2022] [Indexed: 11/24/2022] Open
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Yap AU, Zhang XH, Cao Y, Fu KY. Functional, physical and psychosocial impact of degenerative temporomandibular joint disease. J Oral Rehabil 2021; 49:301-308. [PMID: 34862971 DOI: 10.1111/joor.13288] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Revised: 09/28/2021] [Accepted: 11/26/2021] [Indexed: 12/01/2022]
Abstract
OBJECTIVES This study evaluated the functional, physical and psychosocial impacts of TMJ degenerative joint disease (DJD). The bearing of TMJ osteoarthrosis/osteoarthritis and early/late TMJ DJD on oral health-related quality of life (OHRQoL) were also compared. METHODS Participants were enrolled from a TMD/oro-facial pain centre. Those diagnosed with intra-articular conditions based on the Diagnostic Criteria for Temporomandibular disorders (DC/TMD) were subjected to CBCT assessment and categorised into four discrete groups: NN-no TMJ DJD and no arthralgia; NA-no TMJ DJD with arthralgia; TO-TMJ osteoarthrosis; and TR-TMJ osteoarthritis. The TO/TR groups were subdivided into early/late TMJ osteoarthrosis (EO/LO) and osteoarthritis (ER/LR). OHRQoL was examined using the OHIP-TMD, and data were appraised with the Kruskal-Wallis/Mann-Whitney U tests (α = 0.05). RESULTS The study participant (n = 358) had a mean age of 31.85 ± 12.39 years (85.6% women). Frequencies of the TMD groups were as follows: NN-23.2%; NA-27.1%; TO-19.0%; and TR-30.7%. Participants with TR/NA had significantly worse OHRQoL than those with TO/NN. Additionally, participants with ER/LR reported significantly poorer OHRQoL than their counterparts with EO/LO. For all TMD groups and TMJ DJD subgroups, the psychological discomfort domain was generally the most impaired. Differences in global OHIP scores were significant between participants with and without arthralgia (i.e., NA-NN, ER-EO and LR-LO). CONCLUSIONS The presence of TMJ pain appeared to impair OHRQoL more than the severity of TMJ DJD. As psychological domains were most impacted, psychosocial care should be incorporated when managing patients with painful TMJ DJD.
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Affiliation(s)
- Adrian Ujin Yap
- Centre for TMD & Orofacial Pain, Peking University School & Hospital of Stomatology, Beijing, China.,Department of Dentistry, Ng Teng Fong General Hospital and Faculty of Dentistry, National University Health System, Singapore City, Singapore.,National Dental Centre Singapore and Duke-NUS Medical School, National Dental Research Institute Singapore, Singapore Health Services, Singapore City, Singapore
| | - Xiao-Han Zhang
- Centre for TMD & Orofacial Pain, Peking University School & Hospital of Stomatology, Beijing, China.,Department of Oral & Maxillofacial Radiology, Peking University School & Hospital of Stomatology, Beijing, China.,National Center of Stomatology & National Clincial Research Center for Oral Diseases, Beijing, China.,National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing, China.,Beijing Key Laboratory of Digital Stomatology, Beijing, China
| | - Ye Cao
- Centre for TMD & Orofacial Pain, Peking University School & Hospital of Stomatology, Beijing, China.,Department of Oral & Maxillofacial Radiology, Peking University School & Hospital of Stomatology, Beijing, China.,National Center of Stomatology & National Clincial Research Center for Oral Diseases, Beijing, China.,National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing, China.,Beijing Key Laboratory of Digital Stomatology, Beijing, China
| | - Kai-Yuan Fu
- Centre for TMD & Orofacial Pain, Peking University School & Hospital of Stomatology, Beijing, China.,Department of Oral & Maxillofacial Radiology, Peking University School & Hospital of Stomatology, Beijing, China.,National Center of Stomatology & National Clincial Research Center for Oral Diseases, Beijing, China.,National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing, China.,Beijing Key Laboratory of Digital Stomatology, Beijing, China
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Willenbrock D, Lutz R, Wuest W, Heiss R, Uder M, Behrends T, Wurm M, Kesting M, Wiesmueller M. Imaging temporomandibular disorders: Reliability of a novel MRI-based scoring system. J Craniomaxillofac Surg 2021; 50:230-236. [PMID: 34893389 DOI: 10.1016/j.jcms.2021.11.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 10/05/2021] [Accepted: 11/22/2021] [Indexed: 10/19/2022] Open
Abstract
The aim of this study was to assess the inter- and intrarater reliability of a recently proposed scoring system for temporomandibular disorders (TMD), based upon radiological findings from magnetic resonance imaging (MRI). Patients with clinically suspected uni- or bilateral TMD, and subsequently conducted MRI examination of both temporomandibular joints, were included in this study. MRI data were independently evaluated by two experienced radiologists according to the DLJ scoring system proposed by Wurm et al., which includes assessment of the following categories: articular disk (prefix 'D'), direction of disk luxation (prefix 'L'), and osseous joint alterations (prefix 'J'). 60 patients (49 female and 11 male) were eligible for analysis. No significant differences were found between both observers regarding 'D' and 'L' scores (p = 0.13 and p = 0.59, respectively). Significant differences were found for the assessment of subtle osseous changes ('J0' category: p = 0.041; 'J1' category: p = 0.018). Almost perfect intra- and interrater agreements were found for 'D' and 'L' categories (intrarater and interrater agreements for 'D': κ = 0.92 and κ = 0.84, respectively; intrarater and interrater agreements for 'L': κ = 0.93 and κ = 0.89, respectively). However, the assessment of 'J' categories revealed only moderate interrater agreement (κ = 0.49). The DLJ scoring system based upon MRI findings is feasible for routine clinical TMD assessment, and may help to simplify interdisciplinary communication between radiologists and clinicians.
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Affiliation(s)
- Dorina Willenbrock
- Department of Oral and Maxillofacial Surgery, Friedrich-Alexander-University Erlangen-Nuremberg, Glueckstrasse 11, 91054, Erlangen, Germany
| | - Rainer Lutz
- Department of Oral and Maxillofacial Surgery, Friedrich-Alexander-University Erlangen-Nuremberg, Glueckstrasse 11, 91054, Erlangen, Germany
| | - Wolfgang Wuest
- Institute of Radiology, Friedrich-Alexander-University Erlangen-Nuremberg, Maximiliansplatz 3, 91054, Erlangen, Germany
| | - Rafael Heiss
- Institute of Radiology, Friedrich-Alexander-University Erlangen-Nuremberg, Maximiliansplatz 3, 91054, Erlangen, Germany
| | - Michael Uder
- Institute of Radiology, Friedrich-Alexander-University Erlangen-Nuremberg, Maximiliansplatz 3, 91054, Erlangen, Germany
| | - Tessa Behrends
- Department of Oral and Maxillofacial Surgery, Friedrich-Alexander-University Erlangen-Nuremberg, Glueckstrasse 11, 91054, Erlangen, Germany
| | - Matthias Wurm
- Department of Oral and Maxillofacial Surgery, Friedrich-Alexander-University Erlangen-Nuremberg, Glueckstrasse 11, 91054, Erlangen, Germany
| | - Marco Kesting
- Department of Oral and Maxillofacial Surgery, Friedrich-Alexander-University Erlangen-Nuremberg, Glueckstrasse 11, 91054, Erlangen, Germany
| | - Marco Wiesmueller
- Institute of Radiology, Friedrich-Alexander-University Erlangen-Nuremberg, Maximiliansplatz 3, 91054, Erlangen, Germany.
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Marín-Miranda M, Juárez-López ML, Espinosa-Bautista A. [Photoelastic models applied to dental restorations]. REVISTA CIENTÍFICA ODONTOLÓGICA 2021; 9:e084. [PMID: 38463724 PMCID: PMC10919810 DOI: 10.21142/2523-2754-0904-2021-084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 12/01/2021] [Indexed: 03/12/2024] Open
Abstract
Objective To improve the understanding of the changes generated by restorative procedures through photoelastic models. Dental reconstruction should be based on principles of occlusion in order not to cause premature contact points during preparation and restoration procedures that can lead to disorders such as occlusal trauma, temporo-mandibullary joint dysfunction, or fractures. This paper presents a didactic method to objectively visualize occlusal loads and their distribution. Materials and methods Photoelastic models of teeth and maxillary segments were made to visualize the effects of dental preparations and restorations, as well as the wear of premature contact points. Results The direction, intensity and distribution of stresses in the crown and bone support were analyzed by photoelasticity. Conclusions The technique allows visualization of how the structures are affected from the cavity preparation, the different stresses with diamond or carbide burs, in addition to observing how a premature contact point not only affects the organ that contains it but also the surrounding structures.
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Affiliation(s)
- Miriam Marín-Miranda
- Facultad de Estudios Superiores Zaragoza, Universidad Nacional Autónoma de México. Ciudad de México, México. , Universidad Nacional Autónoma de México Facultad de Estudios Superiores Zaragoza Universidad Nacional Autónoma de México Ciudad de México Mexico
| | - María Lilia Juárez-López
- Facultad de Estudios Superiores Zaragoza, Universidad Nacional Autónoma de México. Ciudad de México, México. , Universidad Nacional Autónoma de México Facultad de Estudios Superiores Zaragoza Universidad Nacional Autónoma de México Ciudad de México Mexico
| | - Adrián Espinosa-Bautista
- Facultad de Ingeniería, Universidad Nacional Autónoma de México. Ciudad de México, México. Universidad Nacional Autónoma de México Facultad de Ingeniería Universidad Nacional Autónoma de México Ciudad de México Mexico
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Condylar erosion is predictive of painful closed lock of the temporomandibular joint: a magnetic resonance imaging study. Head Face Med 2021; 17:40. [PMID: 34507596 PMCID: PMC8431861 DOI: 10.1186/s13005-021-00291-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 08/24/2021] [Indexed: 12/19/2022] Open
Abstract
Background To assess whether magnetic resonance imaging (MRI) findings of condylar erosion (CE) are predictive of a specific clinical diagnosis of painful closed lock of the temporomandibular joint (TMJ), and to determine the strength of association between CE and types of internal derangement (ID). Methods Based upon sample size estimation, this retrospective paired-design study involved 62 patients, aged between 18 and 67 years. Inclusion criteria were the presence of a unilateral clinical diagnosis of arthralgia coexisting with disk displacement without reduction (‘AR and DDwoR/wLO’), assigned according to the Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD) Axis I, and the absence of signs and symptoms of TMJ pain and dysfunction on the contralateral TMJ side. Bilateral sagittal and coronal MR images were obtained to establish the prevalence of CE and TMJ ID types of disk displacement with (DDR) and without reduction (DDNR). Logistic regression analysis was used to compute odds ratios for CE and ID types. Confounding variables adjusted for were age, sex, time since pain onset, pain intensity, and type of ID. Results In the regression analysis, the MRI items of DDR (p = 0.533) and DDNR (p = 0.204) dropped out as nonsignificant in the diagnostic clinical ‘AR and DDwoR/wLO’ group. Significant increases in the risk of ‘AR and DDwoR’ occurred with CE (3.1:1 odds ratio; p = 0.026). The presence of CE was significantly related to DDNR (adjusted OR = 43.9; p < 0.001). Conclusions The data suggest CE as a dominant factor in the definition of painful closed lock of the TMJ, support the view that joint locking needs to be considered as a frequent symptom of osteoarthritis, and emphasize a strong association between the MRI items of CE and DDNR.
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González LV, López JP, Díaz-Báez D, Orjuela MP, Chavez M. Clinical outcomes of operative arthroscopy and temporomandibular medical infiltration with platelet-rich fibrin in upper and lower articular space. J Craniomaxillofac Surg 2021; 49:1162-1168. [PMID: 34384651 DOI: 10.1016/j.jcms.2021.07.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 07/31/2021] [Indexed: 10/20/2022] Open
Abstract
This study aims to describe the short-term therapeutic results of patients treated with operative arthroscopy and medical infiltration with platelet-rich fibrin in upper and lower articular space. The study design is descriptive observational with retrospective case series of patients with Wilkes II and III. These patients were managed with operative arthroscopy viscosupplementation with platelet-rich fibrin (PRF) and were followed up for up to 8 months to evaluate their response to treatment. 17 patients were included in the study. In the pre-surgical assessment (T1) mean VAS was 7.1 and MID was 22.2 mm. Eight months later (T4) a relevant improvement in both mentioned variables MID 38.2 ± 4.1 and VAS 1.1 ± 0.2 was observed. Regarding the reduction of pain, a significant improvement in symptoms were found, this being 84.6% ± 3.5% and in mandibular mobility satisfactory results were also obtained, improving in 41.7% ± 20.9%. Within the limitations of the study temporomandibular joint arthroscopy and medical infiltration platelet-rich fibrin viscosupplementation is a procedure of limited invasiveness that shows promising results.
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Affiliation(s)
| | - Juan Pablo López
- Universidad El Bosque, Bogotá, Colombia; Hospital Universitario Santa Fe de Bogotá, Bogotá, Colombia.
| | - David Díaz-Báez
- Universidad El Bosque, Bogotá, Colombia; Unit of Basic Oral Investigation (UIBO), Facultad de Odontología, Universidad El Bosque, Bogotá, Colombia
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Emshoff R, Bertram A, Hupp L, Rudisch A. A logistic analysis prediction model of TMJ condylar erosion in patients with TMJ arthralgia. BMC Oral Health 2021; 21:374. [PMID: 34303363 PMCID: PMC8305951 DOI: 10.1186/s12903-021-01687-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 06/24/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND In terms of diagnostic and therapeutic management, clinicians should adequately address the frequent aspects of temporomandibular joint (TMJ) osteoarthritis (OA) associated with disk displacement. Condylar erosion (CE) is considered an inflammatory subset of OA and is regarded as a sign of progressive OA changes potentially contributing to changes in dentofacial morphology or limited mandibular growth. The purpose of this study was to establish a risk prediction model of CE by a multivariate logistic regression analysis to predict the individual risk of CE in TMJ arthralgia. It was hypothesized that there was a closer association between CE and magnetic resonance imaging (MRI) indicators. METHODS This retrospective paired-design study enrolled 124 consecutive TMJ pain patients and analyzed the clinical and TMJ-related MRI data in predicting CE. TMJ pain patients were categorized according to the research diagnostic criteria for temporomandibular disorders (RDC/TMD) Axis I protocol. Each patient underwent MRI examination of both TMJs, 1-7 days following clinical examination. RESULTS In the univariate analysis analyses, 9 influencing factors were related to CE, of which the following 4 as predictors determined the binary multivariate logistic regression model: missing posterior teeth (odds ratio [OR] = 1.42; P = 0.018), RDC/TMD of arthralgia coexistant with disk displacement without reduction with limited opening (DDwoR/wLO) (OR = 3.30, P = 0.007), MRI finding of disk displacement without reduction (OR = 10.96, P < 0.001), and MRI finding of bone marrow edema (OR = 11.97, P < 0.001). The model had statistical significance (chi-square = 148.239, Nagelkerke R square = 0.612, P < 0.001). Out of the TMJs, 83.9% were correctly predicted to be CE cases or Non-CE cases with a sensitivity of 81.4% and a specificity of 85.2%. The area under the receiver operating characteristic curve was 0.916. CONCLUSION The established prediction model using the risk factors of TMJ arthralgia may be useful for predicting the risk of CE. The data suggest MRI indicators as dominant factors in the definition of CE. Further research is needed to improve the model, and confirm the validity and reliability of the model.
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Affiliation(s)
- Rüdiger Emshoff
- Orofacial Pain and TMD Unit, University Clinic of Oral and Maxillofacial Surgery, Medical University of Innsbruck, Anichstraße 35, 6020, Innsbruck, Austria.
| | - Annika Bertram
- Otto Von Guericke University of Magdeburg, Magdeburg, Germany
| | - Linus Hupp
- University Clinic of Oral and Maxillofacial Surgery, Medical University of Innsbruck, Innsbruck, Austria
| | - Ansgar Rudisch
- University Clinic of Radiology, Medical University of Innsbruck, Innsbruck, Austria
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González LV, López JP, Díaz-Báez D, Gómez-Delgado A. Correlation between MRI-diagnosed joint effusion and demographic, clinical, imaging, and arthroscopic findings of the temporomandibular joint. J Craniomaxillofac Surg 2021; 49:1169-1174. [PMID: 34246539 DOI: 10.1016/j.jcms.2021.06.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Revised: 06/04/2021] [Accepted: 06/30/2021] [Indexed: 10/20/2022] Open
Abstract
Our study aimed to evaluate the diagnostic accuracy of MRI in cases of joint effusion and documented its relationship with clinical and arthroscopic findings. A cross-sectional study was carried out, using the following selection criteria: clinical, radiological, and MRI-based diagnosis of joint pathology; joint pain; and indication for minimally invasive management with arthroscopy. Arthroscopic analysis, included synovitis, adhesions, chondromalacia, and disc perforations. These variables were recorded and compared with MRI findings of effusion. Data were analyzed using chi-square and Fisher's exact tests. In total, 44 temporomandibular joints were studied, of which 38 corresponded to women; 21 cases were diagnosed as Wilkes IV-V, with effusion found in all of them. The presence of effusion was significantly related to synovitis (p = 0.031) and adherences (p = 0.042). Pain was significantly related to the presence of effusion (p = 0.002), Wilkes advanced stages (p = 0.006), synovitis (p = 0.031), and adherences (p = 0.004). Regarding maximum mouth opening, there was no significant correlation with the variables studied, aside from gender and Wilkes classification. There was a significant correlation between the presence of joint effusion detected by MRI and clinical and arthroscopic findings. This suggests that effusion diagnosed by magnetic resonance has a significant value. Therefore, an adequate presurgical examination should be considered before submitting the patient to an invasive diagnostic procedure.
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Affiliation(s)
- Luis Vicente González
- Oral and Maxillofacial Surgeon, Hospital Universitario La Samaritana, Bogotá, Colombia
| | - Juan Pablo López
- Oral and Maxillofacial Service, Hospital Universitario Fundación Santa Fe de Bogotá, Colombia; Oral and Maxillofacial Surgery Resident, Universidad El Bosque, Bogotá, Colombia.
| | - David Díaz-Báez
- Unit of Basic Oral Investigation (UIBO), Facultad de Odontología, Universidad El Bosque, Bogotá, Colombia
| | - Andrés Gómez-Delgado
- Oral and Maxillofacial Surgeon, Hospital San Juan de Dios and Hospital UNIBE, San José, Costa Rica; Oral and Maxillofacial Surgery Residency Program, Universidad El Bosque, Bogotá, Colombia
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Is the Temporomandibular Joints' Reciprocal Clicking Related to the Morphology and Position of the Mandible, as Well as to the Sagittal Position of Lower Incisors?-A Case-Control Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18094994. [PMID: 34066772 PMCID: PMC8125905 DOI: 10.3390/ijerph18094994] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 04/28/2021] [Accepted: 05/07/2021] [Indexed: 01/25/2023]
Abstract
The number of patients diagnosed with temporomandibular joint (TMJ) internal derangements, who are seeking orthodontic treatment, is increasing. The aim of the study was to assess the relationship between the presence of TMJ reciprocal clicking and the morphology and position of the mandible, and position of lower incisors, examined on the lateral cephalograms. Fifty patients diagnosed with reciprocal clicking in at least one of the TMJs and 55 patients with no symptoms of TMJ dysfunction were included in the study. Cephalometric analysis was used for the assessment of: skeletal class, sagittal and vertical position of the mandible, angle of the mandible, inclination of the mandibular ramus and the mandibular corpus, as well as for the assessment of the position of the mandibular incisors. The statistical significance level was set at p = 0.05. There were no statistically significant differences between the examined groups regarding the sagittal and vertical position of the mandible, as well as regarding the sagittal position of the mandibular incisors. Presence of TMJ reciprocal clicking is not associated with the position and the morphology of the mandible, as well as with the sagittal position of the mandibular incisors. Patients with early stages of TMJ internal derangements do not present any significant changes in Cephalometrics. Patients diagnosed with TMJ internal derangements before orthodontic treatment require an interdisciplinary approach to the treatment, including physiotherapy.
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