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Tenyi A, Milutinović A, Vidmar J, Serša I, Cankar K. Assessment of dental pulp response to carries via MR T 2mapping and histological analysis. BMC Oral Health 2024; 24:428. [PMID: 38582832 PMCID: PMC10999077 DOI: 10.1186/s12903-024-04165-1] [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: 01/03/2024] [Accepted: 03/19/2024] [Indexed: 04/08/2024] Open
Abstract
OBJECTIVES The aim of our study was to assess the correlation between T2 relaxation times and their variability with the histopathological results of the same teeth in relation to caries progression. MATERIALS AND METHODS 52 extracted permanent premolars were included in the study. Prior to extractions, patients underwent magnetic resonance imaging (MRI) scanning and teeth were evaluated using ICDAS classification. Pulps of extracted teeth were histologically analysed. RESULTS MRI T2 relaxation times (ms) were 111,9 ± 11.2 for ICDAS 0, 132.3 ± 18.5* for ICDAS 1, 124.6 ± 14.8 for ICDAS 2 and 112. 6 ± 18.2 for ICDAS 3 group (p = 0,013). A positive correlation was observed between MRI T2 relaxation times and macrophage and T lymphocyte density in healthy teeth. There was a positive correlation between vascular density and T2 relaxation times of dental pulp in teeth with ICDAS score 1. A negative correlation was found between T2 relaxation times and macrophage density. There was a positive correlation between T2 relaxation time variability and macrophage and T lymphocyte density in teeth with ICDAS score 2. In teeth with ICDAS score 3, a positive correlation between T2 relaxation times and T2 relaxation time variability and lymphocyte B density was found. CONCLUSION The results of our study confirm the applicability of MRI in evaluation of the true condition of the pulp tissue. CLINICAL RELEVANCE With the high correlation to histological validation, MRI method serves as a promising imaging implement in the field of general dentistry and endodontics.
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Affiliation(s)
- Ana Tenyi
- Medical Faculty, Department of dental diseases and normal dental morphology, Hrvatski trg 6, University of Ljubljana, Ljubljana, Slovenia.
| | - Aleksandra Milutinović
- Medical Faculty, Institute of histology and embryology, University of Ljubljana, Ljubljana, Slovenia
| | - Jernej Vidmar
- Institute of Radiology, University Medical Center Ljubljana, Ljubljana, Slovenia
- Medical Faculty, Institute of Physiology, University of Ljubljana, Ljubljana, Slovenia
| | - Igor Serša
- Jožef Stefan Institute, Ljubljana, Slovenia
| | - Ksenija Cankar
- Medical Faculty, Institute of Physiology, University of Ljubljana, Ljubljana, Slovenia
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Flick K, Smeets R, Gosau M, Meyer L, Hanning U, Kyselyova AA, Scheifele C, Höhmann B, Henningsen A. Assessment of the intrasinusidal volume before and after maxillary sinus augmentation using mri - a pilot study of eight patients. BMC Oral Health 2024; 24:142. [PMID: 38287339 PMCID: PMC10823631 DOI: 10.1186/s12903-024-03858-x] [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: 10/04/2023] [Accepted: 01/04/2024] [Indexed: 01/31/2024] Open
Abstract
PURPOSE The purpose of this study was to evaluate the suitability, accuracy, and reliability of a non-invasive 3-Tesla magnetic resonance imaging technique (3 T-MRI) for the visualization of maxillary sinus grafts in comparison to conventional, X-ray-based, established standard imaging techniques. METHODS A total of eight patients with alveolar bone atrophy who required surgical sinus floor augmentation in the course of dental implantation were included in this pilot study. Alongside pre-operative cone-beam computed tomography (CBCT), 3 T-MRI was performed before and 6 months after sinus floor augmentation. Two investigators measured the maxillary sinus volume preoperatively and after bone augmentation. RESULTS In all cases, MRI demonstrated accurately the volumes of the maxillary sinus grafts. Following surgery, the bony structures suitable for an implant placement increased at an average of 4.89 cm3, corresponding with the decrease of the intrasinusidal volumes. In general, interexaminer discrepancies were low and without statistical significance. CONCLUSION In this preliminary study, we could demonstrate the feasibility of MRI bone volume measurement as a radiation-free alternative with comparable accuracy to CT/CBCT before procedures like sinus floor augmentation. Nevertheless, costs and artifacts, also present in MRI, have to be taken into account. Larger studies will be necessary to justify the practicability of MRI bone volume evaluation.
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Affiliation(s)
- K Flick
- Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany.
- Division of "Regenerative Orofacial Medicine", Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | - R Smeets
- Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
- Division of "Regenerative Orofacial Medicine", Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - M Gosau
- Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
| | - L Meyer
- Department of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - U Hanning
- Department of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - A A Kyselyova
- Department of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - C Scheifele
- Dental Radiology Unit, Center for Dental and Oral Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - B Höhmann
- Department of Preventive and Restorative Dentistry, Center for Dental and Oral Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - A Henningsen
- Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
- Division of "Regenerative Orofacial Medicine", Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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Pei J, Liao X, Ge L, Liu J, Jiang X. Anterior cerebral falx plane in MR images to estimate the craniofacial midline. Sci Rep 2023; 13:16489. [PMID: 37779134 PMCID: PMC10543626 DOI: 10.1038/s41598-023-42807-6] [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: 04/07/2023] [Accepted: 09/14/2023] [Indexed: 10/03/2023] Open
Abstract
Multiple methods have been proposed for evaluating the symmetry of facial contour by utilizing the median sagittal plane of the skull as a reference and measuring the maxillofacial region. To replace the manual mark point analysis method, we used the anterior cerebral falx plane in MRI images as an indicator of the craniofacial midline. The MRI examination data of 30 individuals were analyzed with a MeVisLab workstation. Two independent examiners performed 15 anthropometric measurements (4 angular, 11 linear) and compared the MRI-based anterior cerebral falx plane with the manual mark point analysis of the craniofacial midline estimation. All measurements were repeated after 3 weeks. Statistical analyses included the repeatability and reproducibility of the 2 methods based on intra-observer and inter-observer correlation coefficients (ICCs), respectively. Precision was estimated by intergroup comparison of the coefficient of variation. The anterior falx plane derived from the MRI data resulted in an intra-observer ICC of 0.869 ± 0.065 (range 0.733-0.936) and inter-observer ICC of 0.876 ± 0.0417 (0.798-0.932) for all measurements, showing significant correlations with the ICC values obtained by the mark point method (p < 0.05). The coefficient of variation showed that the precisions of the 2 methods were statistically comparable. We conclude that, for MRI-based craniofacial midline estimation, measurements made using the anterior cerebral falx plane are as precise, repeatable, and reproducible as those using the manual mark point analysis method. It has a high potential for application in radiation-free 3-dimensional craniofacial analysis.
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Affiliation(s)
- Jun Pei
- Affiliated Hospital of Chifeng University, Yuanlin Road 98, Chi Feng, 150400, Neimenggu, China
| | - Xu Liao
- Affiliated Hospital of Chifeng University, Yuanlin Road 98, Chi Feng, 150400, Neimenggu, China
| | - Lingling Ge
- Affiliated Hospital of Chifeng University, Yuanlin Road 98, Chi Feng, 150400, Neimenggu, China
| | - Jianwei Liu
- Affiliated Hospital of Chifeng University, Yuanlin Road 98, Chi Feng, 150400, Neimenggu, China
| | - Xiling Jiang
- Affiliated Hospital of Chifeng University, Yuanlin Road 98, Chi Feng, 150400, Neimenggu, China.
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Artificial Intelligence in Orthopedic Radiography Analysis: A Narrative Review. Diagnostics (Basel) 2022; 12:diagnostics12092235. [PMID: 36140636 PMCID: PMC9498096 DOI: 10.3390/diagnostics12092235] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 09/12/2022] [Accepted: 09/13/2022] [Indexed: 11/17/2022] Open
Abstract
Artificial intelligence (AI) in medicine is a rapidly growing field. In orthopedics, the clinical implementations of AI have not yet reached their full potential. Deep learning algorithms have shown promising results in computed radiographs for fracture detection, classification of OA, bone age, as well as automated measurements of the lower extremities. Studies investigating the performance of AI compared to trained human readers often show equal or better results, although human validation is indispensable at the current standards. The objective of this narrative review is to give an overview of AI in medicine and summarize the current applications of AI in orthopedic radiography imaging. Due to the different AI software and study design, it is difficult to find a clear structure in this field. To produce more homogeneous studies, open-source access to AI software codes and a consensus on study design should be aimed for.
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Sekhoacha M, Riet K, Motloung P, Gumenku L, Adegoke A, Mashele S. Prostate Cancer Review: Genetics, Diagnosis, Treatment Options, and Alternative Approaches. Molecules 2022; 27:5730. [PMID: 36080493 PMCID: PMC9457814 DOI: 10.3390/molecules27175730] [Citation(s) in RCA: 163] [Impact Index Per Article: 81.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Revised: 08/29/2022] [Accepted: 08/30/2022] [Indexed: 01/07/2023] Open
Abstract
Prostate cancer is one of the malignancies that affects men and significantly contributes to increased mortality rates in men globally. Patients affected with prostate cancer present with either a localized or advanced disease. In this review, we aim to provide a holistic overview of prostate cancer, including the diagnosis of the disease, mutations leading to the onset and progression of the disease, and treatment options. Prostate cancer diagnoses include a digital rectal examination, prostate-specific antigen analysis, and prostate biopsies. Mutations in certain genes are linked to the onset, progression, and metastasis of the cancer. Treatment for localized prostate cancer encompasses active surveillance, ablative radiotherapy, and radical prostatectomy. Men who relapse or present metastatic prostate cancer receive androgen deprivation therapy (ADT), salvage radiotherapy, and chemotherapy. Currently, available treatment options are more effective when used as combination therapy; however, despite available treatment options, prostate cancer remains to be incurable. There has been ongoing research on finding and identifying other treatment approaches such as the use of traditional medicine, the application of nanotechnologies, and gene therapy to combat prostate cancer, drug resistance, as well as to reduce the adverse effects that come with current treatment options. In this article, we summarize the genes involved in prostate cancer, available treatment options, and current research on alternative treatment options.
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Affiliation(s)
- Mamello Sekhoacha
- Department of Pharmacology, University of the Free State, Bloemfontein 9300, South Africa
| | - Keamogetswe Riet
- Department of Health Sciences, Central University of Technology, Bloemfontein 9300, South Africa
| | - Paballo Motloung
- Department of Health Sciences, Central University of Technology, Bloemfontein 9300, South Africa
| | - Lemohang Gumenku
- Department of Health Sciences, Central University of Technology, Bloemfontein 9300, South Africa
| | - Ayodeji Adegoke
- Department of Pharmacology, University of the Free State, Bloemfontein 9300, South Africa
- Cancer Research and Molecular Biology Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan 200005, Nigeria
| | - Samson Mashele
- Department of Health Sciences, Central University of Technology, Bloemfontein 9300, South Africa
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Abkai C, Hourfar J, Glockengießer J, Ulrici J, Hell E, Rasche V, Ludwig B. Ultra short time to Echo (UTE) MRI for cephalometric analysis-Potential of an x-ray free fast cephalometric projection technique. PLoS One 2021; 16:e0257224. [PMID: 34516568 PMCID: PMC8437275 DOI: 10.1371/journal.pone.0257224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 04/18/2021] [Indexed: 12/03/2022] Open
Abstract
OBJECTIVES A novel magnetic resonance imaging (MRI) scan protocol is presented on the basis of ultra-short time to echo (UTE). By this MRI cephalometric projections (MCPs) can be acquired without the need of post processing in one shot. Different technical parameterizations of the protocol are performed. Their impact on the performance of MCPs is evaluated in comparison to the gold standard-the lateral cephalometric radiography (LCR) for cephalometric analysis (CA) in orthodontics. METHODS Seven MCPs with various scan parameters influencing the scan duration and one LCR are used from one subject. 40 expert assessors performed CA for 14 predefined cephalometric landmarks. Relative metric distances and absolute angular measurements were calculated. Statistical analysis is presented and the deviations are highlighted to demonstrate the potential of the method for further analysis. RESULTS The MCPs are acquired in 5-154 seconds, depending on resolution and contrast. Mean relative distances were 2.4-2.7 mm in MCPs and 1.6 mm in LCR, which demonstrate the accuracy and level of agreement of the expert assessors in identifying anatomical landmarks. In comparison to other studies, the presented MCP performed similar in angular analysis and demonstrated on average deviation of 1.2° ±1.1° in comparison to LCR. Despite the point articulare (Ar) and the related gonial angle the calculate distances and angles show outcomes in the range of ±2°/2mm. CONCLUSIONS MCPs can be acquired much faster in comparison to other techniques known from literature for CA. This study demonstrated the potential of the new method and showed first feasible results. Further research is needed to analyze the performance on a broad range of patients.
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Affiliation(s)
- Ciamak Abkai
- Dental office, Traben-Trarbach, Germany
- Sirona Dental Systems GmbH, Bensheim, Germany
| | - Jan Hourfar
- Department of Orthodontics, Saarland University, Homburg/Saar, Germany
| | | | | | - Erich Hell
- Sirona Dental Systems GmbH, Bensheim, Germany
| | - Volker Rasche
- Department of Internal Medicine II, Ulm-University, Ulm, Germany
| | - Björn Ludwig
- Dental office, Traben-Trarbach, Germany
- Department of Orthodontics, Saarland University, Homburg/Saar, Germany
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Capuani S, Gambarini G, Guarnieri R, Di Pietro G, Testarelli L, Di Nardo D. Nuclear Magnetic Resonance Microimaging for the Qualitative Assessment of Root Canal Treatment: An Ex Vivo Preliminary Study. Diagnostics (Basel) 2021; 11:1012. [PMID: 34205946 PMCID: PMC8228494 DOI: 10.3390/diagnostics11061012] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 05/27/2021] [Accepted: 05/30/2021] [Indexed: 02/07/2023] Open
Abstract
AIM To assess the potential ability of nuclear magnetic resonance micro-imaging (mMRI) to visualize and identify soft tissue debris and unfilled spaces inside radicular canals in endodontic treated extracted teeth, for understanding the causes of treatment failure. Toward this goal, multi-parametric mMRI and cone beam computed tomography (CBCT) were compared. METHODOLOGY A non-recoverable root treated human tooth was extracted due to endodontic failure and excessive mobility. It was examined with both CBCT and mMRI: CBCT was performed with 0.125 mm voxel size (GXCB-500, Kavo-Gendex, Brea, CA, USA) and mMRI was performed with a spectrometer operating at 9.4T magnetic field (Bruker Avance-400, Bruker, Billerica, MA, USA). The mMRI images were obtained with a microimaging probe. Relaxation times (T1 and T2) and diffusion-weighted acquisition sequences were used to obtain multi-parametric maps of the extracted tooth (slice thickness of 200 µm and in plane resolution of 30 × 30 µm2). RESULTS T1 and T2 maps identified unfilled spaces around and close to Gutta-percha cones instead of CBCT images that were not able to highlight this aspect. T1, T2 and apparent diffusion coefficient (ADC) assumed different values in dentine and in voids, characterized by different dimensions. Moreover, they were able to discriminate between infiltrations of water only and deposits of biological material. Because Gutta-percha cones are constituted of hard, non-porous material, they do not provide a signal and in mMRI images appear as zones of noise. CONCLUSIONS Unlike the CBCT exam, mMRI can detect soft tissue debris and unfilled spaces inside radicular canals. Therefore, this in vitro study showed the potential of mMRI to evaluate the quality of the root canal treatment, suggesting its potential benefit in determining the causes of endodontic failure, without the use of ionizing radiation.
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Affiliation(s)
- Silvia Capuani
- CNR ISC c/o Physics Department, Sapienza University of Rome, 00185 Rome, Italy; (S.C.); (G.D.P.)
- Museo Storico Della Fisica e Centro Studi e Ricerche Enrico Fermi, 00185 Rome, Italy
| | - Gianluca Gambarini
- Department of Oral and Maxillo Facial Sciences, Sapienza Università di Roma, 00161 Rome, Italy; (G.G.); (R.G.); (D.D.N.)
| | - Renzo Guarnieri
- Department of Oral and Maxillo Facial Sciences, Sapienza Università di Roma, 00161 Rome, Italy; (G.G.); (R.G.); (D.D.N.)
| | - Giulia Di Pietro
- CNR ISC c/o Physics Department, Sapienza University of Rome, 00185 Rome, Italy; (S.C.); (G.D.P.)
| | - Luca Testarelli
- Department of Oral and Maxillo Facial Sciences, Sapienza Università di Roma, 00161 Rome, Italy; (G.G.); (R.G.); (D.D.N.)
| | - Dario Di Nardo
- Department of Oral and Maxillo Facial Sciences, Sapienza Università di Roma, 00161 Rome, Italy; (G.G.); (R.G.); (D.D.N.)
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The Chairside Periodontal Diagnostic Toolkit: Past, Present, and Future. Diagnostics (Basel) 2021; 11:diagnostics11060932. [PMID: 34067332 PMCID: PMC8224643 DOI: 10.3390/diagnostics11060932] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 05/07/2021] [Accepted: 05/19/2021] [Indexed: 12/22/2022] Open
Abstract
Periodontal diseases comprise a group of globally prevalent, chronic oral inflammatory conditions caused by microbial dysbiosis and the host immune response. These diseases specifically affect the tooth-supporting tissues (i.e., the periodontium) but are also known to contribute to systemic inflammation. If left untreated, periodontal diseases can ultimately progress to tooth loss, lead to compromised oral function, and negatively impact the overall quality of life. Therefore, it is important for the clinician to accurately diagnose these diseases both early and accurately chairside. Currently, the staging and grading of periodontal diseases are based on recording medical and dental histories, thorough oral examination, and multiple clinical and radiographic analyses of the periodontium. There have been numerous attempts to improve, automate, and digitize the collection of this information with varied success. Recent studies focused on the subgingival microbiome and the host immune response suggest there is an untapped potential for non-invasive oral sampling to assist clinicians in the chairside diagnosis and, potentially, prognosis. Here, we review the available toolkit available for diagnosing periodontal diseases, discuss commercially available options, and highlight the need for collaborative research initiatives and state-of-the-art technology development across disciplines to overcome the challenges of rapid periodontal disease diagnosis.
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Ozen AC, Idiyatullin D, Adriany G, Jungst S, Kobayashi N, Groenke BR, Bock M, Garwood M, Nixdorf DR. Design of an Intraoral Dipole Antenna for Dental Applications. IEEE Trans Biomed Eng 2021; 68:2563-2573. [PMID: 33513097 DOI: 10.1109/tbme.2021.3055777] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
OBJECTIVE In dental MRI, intraoral coils provide higher signal-to-noise ratio (SNR) than coils placed outside the mouth. This study aims to design an intraoral dipole antenna and demonstrates the feasibility of combining it with an extraoral coil. METHODS Dipole antenna design was chosen over loop design, as it is open toward the distal; therefore, it does not restrain tongue movement. The dipole design offers also an increased depth-of-sensitivity that allows for MRI of dental roots. Different dipole antenna designs were simulated using a finite-difference-time-domain approach. Ribbon, wire, and multi-wire arms were compared. The best design was improved further by covering the ends of the dipole arms with a high-permittivity material. Phantom and in vivo measurements were conducted on a 3T clinical MRI system. RESULTS The best transmit efficiency and homogeneity was achieved with a multi-wire curved dipole antenna with 7 wires for each arm. With an additional high-permittivity cap the transmit field inhomogeneity was further reduced from 20% to 5% along the dipole arm. When combined with extraoral flexible surface-coil, the coupling between the coils was less than -32dB and SNR was increased. CONCLUSION Using intraoral dipole design instead of loop improves patient comfort. We demonstrated feasibility of the intraoral dipole combined with an extraoral flexible coil-array for dental MRI. Dipole antenna enabled decreasing imaging field-of-view, and reduced the prevalent signal from tongue. SIGNIFICANCE This study highlights the advantages and the main challenges of the intraoral RF coils and describes a novel RF coil that addresses those challenges.
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Sonesson M, Al-Qabandi F, Månsson S, Abdulraheem S, Bondemark L, Hellén-Halme K. Orthodontic appliances and MR image artefacts: An exploratory in vitro and in vivo study using 1.5-T and 3-T scanners. Imaging Sci Dent 2021; 51:63-71. [PMID: 33828963 PMCID: PMC8007402 DOI: 10.5624/isd.20200199] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 09/25/2020] [Accepted: 10/14/2020] [Indexed: 11/18/2022] Open
Abstract
Purpose The aim of this study was to assess the artefacts of 12 fixed orthodontic appliances in magnetic resonance images obtained using 1.5-T and 3-T scanners, and to evaluate different imaging sequences designed to suppress metal artefacts. Materials and Methods In vitro, study casts of 1 adult with normal occlusion were used. Twelve orthodontic appliances were attached to the study casts and scanned. Turbo spin echo (TSE), TSE with high readout bandwidth, and TSE with view angle tilting and slice encoding for metal artefact correction were used to suppress metal artefacts. Artefacts were measured. In vivo, 6 appliances were scanned: 1) conventional stainless-steel brackets; 2) nickel-free brackets; 3) titanium brackets; 4) a Herbst appliance; 5) a fixed retainer; and 6) a rapid maxillary expander. The maxilla, mandible, nasopharynx, tongue, temporomandibular joints, and cranial base/eye globes were assessed. Scores of 0, 1, 2, and 3 indicated no artefacts and minor, moderate, and major artefacts, respectively. Results In vitro, titanium brackets and the fixed retainer created minor artefacts. In vivo, titanium brackets caused minor artefacts. Conventional stainless-steel and nickel free brackets, the fixed retainer, and the rapid maxillary expander caused major artefacts in the maxilla and mandible. Conventional stainless-steel and nickel-free brackets caused major artefacts in the eye globe (3-T). TSE with high readout bandwidth reduced image artefacts in both scanners. Conclusion Titanium brackets, the Herbst appliance, and the fixed retainer caused minor artefacts in images of neurocranial structures (1.5-T and 3-T) when using TSE with high readout bandwidth.
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Affiliation(s)
- Mikael Sonesson
- Department of Orthodontics, Faculty of Odontology, Malmö University, Malmö, Sweden
| | - Fahad Al-Qabandi
- Department of Orthodontics, Faculty of Odontology, Malmö University, Malmö, Sweden
| | - Sven Månsson
- Medical Radiation Physics, Department of Translational Medicine, Lund University, Skåne University Hospital, Malmö, Sweden
| | - Salem Abdulraheem
- Department of Orthodontics, Faculty of Odontology, Malmö University, Malmö, Sweden.,Department of Orthodontics, Al-Jahra Specialty Dental Center, Ministry of Health, Kuwait, Sweden
| | - Lars Bondemark
- Department of Orthodontics, Faculty of Odontology, Malmö University, Malmö, Sweden
| | - Kristina Hellén-Halme
- Department of Oral and Maxillofacial Radiology, Faculty of Odontology, Malmö University, Malmö, Sweden
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11
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Bayrakdar IS, Yılmaz AB, Kaplan FA, Bilgir E, Orhan K. Evaluation of the snowing-like ultrasonographic features of intraosseous jaw pathologies. J Ultrason 2020; 20:e307-e310. [PMID: 33500799 PMCID: PMC7830146 DOI: 10.15557/jou.2020.0053] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 08/27/2020] [Indexed: 11/22/2022] Open
Abstract
Aim of the study: Ultrasonographic examination of intraosseous jaw pathologies may reveal interesting incidental, mobile hyperechoic particles ("snowflakes") in anechoic areas. Purpose of this study is to explain and discuss this snowing-like ultrasonographic feature of intraosseous jaw pathologies. Material and methods: This study included 113 patients admitted to our clinic for examination: 43 (38.05%) males and 70 (61.9%) females with a mean age of 34.9 ± 17.2 years (range: 6-72 years). A total of 120 intraosseous lesions were evaluated prior to surgery using ultrasonography; these included non-neoplastic, odontogenic, and non-odontogenic lesions. Results: In total, 5 (4.1%) of the 120 lesions exhibited snowing-like feature on ultrasonography, including 2 (1.6% of total) of 3 incisive canal cysts, 2 (1.6% of total) of 7 dentigerous cysts, and 1 (0.8% of total) of 19 odontogenic keratocysts. Conclusions: Snowflakes evident on ultrasonography of intraosseous jaw lesions may be specific to certain pathologies. Future studies correlating radiologic and pathologic features of intraosseous jaw lesions should focus on ultrasonographic snowing-like appearance in different types of lesions and explore why they occur.
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Affiliation(s)
- Ibrahim Sevki Bayrakdar
- Associate Professor, Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Eskisehir Osmangazi University, Eskişehir-Turkey
| | - Ahmet Berhan Yılmaz
- Professor, Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Ataturk University, Erzurum-Turkey
| | - Fatma Akkoca Kaplan
- Research Assistant, Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Eskisehir Osmangazi University, Eskişehir-Turkey
| | - Elif Bilgir
- Assistant Professor, Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Eskisehir Osmangazi University, Eskişehir-Turkey
| | - Kaan Orhan
- Professor, Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Ankara University, Ankara-Turkey
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Algarín JM, Díaz-Caballero E, Borreguero J, Galve F, Grau-Ruiz D, Rigla JP, Bosch R, González JM, Pallás E, Corberán M, Gramage C, Aja-Fernández S, Ríos A, Benlloch JM, Alonso J. Simultaneous imaging of hard and soft biological tissues in a low-field dental MRI scanner. Sci Rep 2020; 10:21470. [PMID: 33293593 PMCID: PMC7723060 DOI: 10.1038/s41598-020-78456-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 11/20/2020] [Indexed: 12/17/2022] Open
Abstract
Magnetic Resonance Imaging (MRI) of hard biological tissues is challenging due to the fleeting lifetime and low strength of their response to resonant stimuli, especially at low magnetic fields. Consequently, the impact of MRI on some medical applications, such as dentistry, continues to be limited. Here, we present three-dimensional reconstructions of ex-vivo human teeth, as well as a rabbit head and part of a cow femur, all obtained at a field strength of 260 mT. These images are the first featuring soft and hard tissues simultaneously at sub-Tesla fields, and they have been acquired in a home-made, special-purpose, pre-medical MRI scanner designed with the goal of demonstrating dental imaging at low field settings. We encode spatial information with two pulse sequences: Pointwise-Encoding Time reduction with Radial Acquisition and a new sequence we have called Double Radial Non-Stop Spin Echo, which we find to perform better than the former. For image reconstruction we employ Algebraic Reconstruction Techniques (ART) as well as standard Fourier methods. An analysis of the resulting images shows that ART reconstructions exhibit a higher signal-to-noise ratio with a more homogeneous noise distribution.
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Affiliation(s)
- José M Algarín
- MRILab, Institute for Molecular Imaging and Instrumentation (i3M), Spanish National Research Council (CSIC) and Universitat Politècnica de València (UPV), 46022, Valencia, Spain
| | | | - José Borreguero
- MRILab, Institute for Molecular Imaging and Instrumentation (i3M), Spanish National Research Council (CSIC) and Universitat Politècnica de València (UPV), 46022, Valencia, Spain
| | - Fernando Galve
- MRILab, Institute for Molecular Imaging and Instrumentation (i3M), Spanish National Research Council (CSIC) and Universitat Politècnica de València (UPV), 46022, Valencia, Spain
| | | | | | - Rubén Bosch
- MRILab, Institute for Molecular Imaging and Instrumentation (i3M), Spanish National Research Council (CSIC) and Universitat Politècnica de València (UPV), 46022, Valencia, Spain
| | | | - Eduardo Pallás
- MRILab, Institute for Molecular Imaging and Instrumentation (i3M), Spanish National Research Council (CSIC) and Universitat Politècnica de València (UPV), 46022, Valencia, Spain
| | - Miguel Corberán
- MRILab, Institute for Molecular Imaging and Instrumentation (i3M), Spanish National Research Council (CSIC) and Universitat Politècnica de València (UPV), 46022, Valencia, Spain
| | - Carlos Gramage
- MRILab, Institute for Molecular Imaging and Instrumentation (i3M), Spanish National Research Council (CSIC) and Universitat Politècnica de València (UPV), 46022, Valencia, Spain
| | | | | | - José M Benlloch
- MRILab, Institute for Molecular Imaging and Instrumentation (i3M), Spanish National Research Council (CSIC) and Universitat Politècnica de València (UPV), 46022, Valencia, Spain
| | - Joseba Alonso
- MRILab, Institute for Molecular Imaging and Instrumentation (i3M), Spanish National Research Council (CSIC) and Universitat Politècnica de València (UPV), 46022, Valencia, Spain.
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Nishimura DA, Choi IGG, Arita ES, Cortes ARG. Estimating bone mineral density using MRI in medicine and dentistry: a literature review. Oral Radiol 2020; 37:366-375. [PMID: 32930913 DOI: 10.1007/s11282-020-00484-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 09/02/2020] [Indexed: 11/29/2022]
Abstract
OBJECTIVES Studies performed in the medical area have shown that an indirect diagnosis of bone mineral density (BMD) is feasible by assessing the amount of bone marrow fat with non-ionizing magnetic resonance imaging (MRI). In dentistry, radiographic methods are still the most used for alveolar bone diagnosis. The present literature review aimed at addressing the role of MRI in assessing BMD in medicine and dentistry. METHODS MEDLINE and EMBASE databases were searched for articles published up to 2019. RESULTS A total of 428 potentially eligible papers were screened. Of these, 397 were excluded after title, abstract and keyword assessment, yielding 31 papers that potentially met the inclusion criteria. Eleven studies were then excluded because their full texts did not discuss the role of MRI in the indirect diagnosis of BMD. As a result, a total of 20 studies were finally identified as eligible for inclusion in this literature review. Most studies found satisfactory accuracy of MRI for indirectly assessing BMD by quantifying bone mineral fat (BMF). However, only one of these studies was on dentistry. CONCLUSION Within the limitations of this study, the present findings suggest that MRI is accurate to indirectly estimate bone density by assessing BMF, and could be clinically relevant during dental treatment planning.
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Affiliation(s)
- Danielle Ayumi Nishimura
- Department of Stomatology, School of Dentistry, University of São Paulo (USP), Av. Prof. Lineu Prestes, 2227, São Paulo, 05508-000, Brazil.
| | - Isabela Goulart Gil Choi
- Department of Stomatology, School of Dentistry, University of São Paulo (USP), Av. Prof. Lineu Prestes, 2227, São Paulo, 05508-000, Brazil
| | - Emiko Saita Arita
- Department of Stomatology, School of Dentistry, University of São Paulo (USP), Av. Prof. Lineu Prestes, 2227, São Paulo, 05508-000, Brazil
| | - Arthur Rodriguez Gonzalez Cortes
- Department of Stomatology, School of Dentistry, University of São Paulo (USP), Av. Prof. Lineu Prestes, 2227, São Paulo, 05508-000, Brazil
- Department of Dental Surgery, Faculty of Dental Surgery, University of Malta, Msida, Malta
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Mastrogiacomo S, Dou W, Jansen JA, Walboomers XF. Magnetic Resonance Imaging of Hard Tissues and Hard Tissue Engineered Bio-substitutes. Mol Imaging Biol 2020; 21:1003-1019. [PMID: 30989438 DOI: 10.1007/s11307-019-01345-2] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Magnetic resonance imaging (MRI) is a non-invasive diagnostic imaging tool based on the detection of protons into the tissues. This imaging technique is remarkable because of high spatial resolution, strong soft tissue contrast and specificity, and good depth penetration. However, MR imaging of hard tissues, such as bone and teeth, remains challenging due to low proton content in such tissues as well as to very short transverse relaxation times (T2). To overcome these issues, new MRI techniques, such as sweep imaging with Fourier transformation (SWIFT), ultrashort echo time (UTE) imaging, and zero echo time (ZTE) imaging, have been developed for hard tissues imaging with promising results reported. Within this article, MRI techniques developed for the detection of hard tissues, such as bone and dental tissues, have been reviewed. The main goal was thus to give a comprehensive overview on the corresponding (pre-) clinical applications and on the potential future directions with such techniques applied. In addition, a section dedicated to MR imaging of novel biomaterials developed for hard tissue applications was given as well.
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Affiliation(s)
- Simone Mastrogiacomo
- Department of Biomaterials, Radboud University Medical Center, Philips van Leijdenlaan 25, 6525 EX, Nijmegen, The Netherlands.
- Laboratory of Functional and Molecular Imaging, NINDS, National Institutes of Health, Building 10, 5S261, Bethesda, MD, 20892, USA.
| | - Weiqiang Dou
- Department of Radiology and Nuclear Medicine, Radboud University Medical Center, Geert Grooteplein Zuid 10, 6525 GA, Nijmegen, The Netherlands
- GE Healthcare, MR Research, Beijing, People's Republic of China
| | - John A Jansen
- Department of Biomaterials, Radboud University Medical Center, Philips van Leijdenlaan 25, 6525 EX, Nijmegen, The Netherlands
| | - X Frank Walboomers
- Department of Biomaterials, Radboud University Medical Center, Philips van Leijdenlaan 25, 6525 EX, Nijmegen, The Netherlands
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15
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Kindler S, Ittermann T, Bülow R, Holtfreter B, Klausenitz C, Metelmann P, Mksoud M, Pink C, Seebauer C, Kocher T, Koppe T, Krey KF, Metelmann HR, Völzke H, Daboul A. Does craniofacial morphology affect third molars impaction? Results from a population-based study in northeastern Germany. PLoS One 2019; 14:e0225444. [PMID: 31756203 PMCID: PMC6874347 DOI: 10.1371/journal.pone.0225444] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Accepted: 11/05/2019] [Indexed: 12/13/2022] Open
Abstract
Objectives It is still not clear why impaction of third molars occurs. Craniofacial morphology and facial parameters have been discussed to be strong predictors for third molar impaction. Thus, this study aimed to investigate the effect of craniofacial morphology on erupted or impacted third molars in a German population sample. Materials and methods Erupted and impacted third molars in 2,484 participants from the Study of Health in Pomerania were assessed by whole-body magnetic resonance imaging. Markers of facial morphology were determined in 619 individuals of those participants in whose 421 participants (16.7%) had at least one impacted third molar. Craniofacial morphology was estimated as linear measurements and was associated in a cross-sectional study design with impacted and erupted third molars by multinomial logistic regression models. Erupted third molars were used as reference outcome category and regression models were adjusted for age and sex. Results Maximum Cranial Width (Eurion-Eurion distance) was significantly associated with impacted third molars (RR: 1.079; 95% confidence interval 1.028–1.132). This association was even more pronounced in the mandible. Individuals with a lower total anterior facial height (Nasion-Menton distance) and a lower facial index also have an increased risk for impacted third molars in the mandible (RR 0.953; 95% confidence interval 0.913–0.996 and RR: 0.943; 95% confidence interval 0.894–0.995). No significant associations of third molar status with facial width (Zygion-Zygion distance), and sagittal cranial dimension (Nasion-Sella distance; Sella-Basion distance) were observed. Conclusion Individuals with an increased maximal cranial width have a higher risk for impaction of third molars in the mandible and in the maxilla. Individuals with a lower anterior total anterior facial height and lower facial index also have an increased risk for third molars impaction in the mandible. These findings could help orthodontic dentists, oral surgeons and oral and maxillofacial surgeons in decision-making for third molars removal in their treatment. These findings highlight the necessity of an additional analysis of the maximal cranial width by the Eurion- Eurion distance.
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Affiliation(s)
- Stefan Kindler
- Department of Oral and Maxillofacial Surgery/Plastic Surgery, University Medicine Greifswald, Greifswald, Germany
- * E-mail:
| | - Till Ittermann
- Institute for Community Medicine, University Medicine Greifswald, Greifswald, Germany
| | - Robin Bülow
- Institute for Diagnostic Radiology and Neuroradiology, University Medicine Greifswald, Greifswald, Germany
| | - Birte Holtfreter
- Department of Restorative Dentistry, Periodontology, Endodontology, and Preventive and Pediatric Dentistry, University Medicine Greifswald, Greifswald, Germany
| | - Catharina Klausenitz
- Institute for Diagnostic Radiology and Neuroradiology, University Medicine Greifswald, Greifswald, Germany
| | - Philine Metelmann
- Department of Orthodontics, University Medicine Greifswald, Greifswald, Germany
| | - Maria Mksoud
- Department of Oral and Maxillofacial Surgery/Plastic Surgery, University Medicine Greifswald, Greifswald, Germany
| | - Christiane Pink
- Department of Restorative Dentistry, Periodontology, Endodontology, and Preventive and Pediatric Dentistry, University Medicine Greifswald, Greifswald, Germany
| | - Christian Seebauer
- Department of Oral and Maxillofacial Surgery/Plastic Surgery, University Medicine Greifswald, Greifswald, Germany
| | - Thomas Kocher
- Department of Restorative Dentistry, Periodontology, Endodontology, and Preventive and Pediatric Dentistry, University Medicine Greifswald, Greifswald, Germany
| | - Thomas Koppe
- Department of Anatomy and Cell Biology, University Medicine Greifswald, Greifswald, Germany
| | - Karl-Friedrich Krey
- Department of Orthodontics, University Medicine Greifswald, Greifswald, Germany
| | - Hans-Robert Metelmann
- Department of Oral and Maxillofacial Surgery/Plastic Surgery, University Medicine Greifswald, Greifswald, Germany
| | - Henry Völzke
- Institute for Community Medicine, University Medicine Greifswald, Greifswald, Germany
| | - Amro Daboul
- Department of Prosthodontics, Gerodontology and Biomaterials, University Medicine Greifswald, Greifswald, Germany
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Maspero C, Abate A, Bellincioni F, Cavagnetto D, Lanteri V, Costa A, Farronato M. Comparison of a tridimensional cephalometric analysis performed on 3T-MRI compared with CBCT: a pilot study in adults. Prog Orthod 2019; 20:40. [PMID: 31631241 PMCID: PMC6801285 DOI: 10.1186/s40510-019-0293-x] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Accepted: 09/21/2019] [Indexed: 02/07/2023] Open
Abstract
OBJECTIVE Since the introduction of cone-beam computed tomography (CBCT) in dentistry, this technology has enabled distortion-free three-dimensional cephalometric analysis for orthodontic and orthognathic surgery diagnosis. However, CBCT is associated with significantly higher radiation exposure than traditional routine bidimensional examinations for orthodontic diagnosis, although low-dose protocols have markedly reduced radiation exposure over time. The objective of this preliminary feasibility study is to compare the accuracy and diagnostic capabilities of an already-validated three-dimensional cephalometric analysis on CBCT to those of an analysis on 3-T magnetic resonance imaging (3T-MRI) to assess whether the latter can deliver a comparable quality of information while avoiding radiation exposure. MATERIALS AND METHODS In order to test the feasibility of three-dimensional cephalometry on 3T-MRI, 18 subjects (4 male; 14 female) with mean age 37.8 ± SD 10.2, who had undergone both maxillofacial CBCT and maxillofacial 3T-MRI for various purposes within 1 month, were selected from the archive of the Department of Dentistry and Maxillofacial Surgery of Fondazione Ospedale Policlinico Maggiore, IRCCS, Milano, Italy. A three-dimensional cephalometric analysis composed of ten midsagittal and four bilateral landmarks and 24 measurements (11 angular, 13 linear) was performed on both scans using Mimics Research® v. 17.0 (NV, Technologielaan 15, 3001 Leuven, Belgium). Cephalometric analysis was performed twice by two independent orthodontists for each scan, and each orthodontist repeated the measurements 3 weeks later. Statistical analysis was performed with SPSS® 20.00 for Windows (IBM® Corporation, Sommers, NY, USA). A Bland-Altman test for each cephalometric value was performed to assess the agreement between the procedures. The intraclass correlation coefficient (ICC) was used to assess interobserver and intraobserver reliability. The coefficient of variation was used to evaluate precision. RESULTS Both procedures showed good reliability, with mean intraobserver ICCs of 0.977/0.971 for CBCT and 0.881/0.912 for MRI. The average interobserver ICCs were 0.965 for CBCT and 0.833 for MRI. A Bland-Altman analysis for the cephalometric tracing revealed a similar range of agreement between the two modalities; the bias range (mean ± SD) was - 0.25-0.66 mm (0.174 ± 0.31) for distances and - 0.41-0.54° (0.12 ± 0.33) for angles. CONCLUSIONS Within the main limitation of this pilot study, that is, the small sample, it is possible to state that cephalometric measurements on 3T-MRI seem to possess adequate reliability and repeatability and that they show satisfying agreement with values measured on CBCTs. An MRI examination does not expose patients to ionizing radiation and could provide an alternative to CBCT for three-dimensional cephalometrics in the future.
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Affiliation(s)
- Cinzia Maspero
- Department of Orthodontics, UOC Maxillofacial and Dental Surgery, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, 20142, Milan, Italy. .,University of Milan, Milan, Italy.
| | - Andrea Abate
- Department of Orthodontics, UOC Maxillofacial and Dental Surgery, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, 20142, Milan, Italy.,University of Milan, Milan, Italy
| | - Francesca Bellincioni
- Department of Orthodontics, UOC Maxillofacial and Dental Surgery, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, 20142, Milan, Italy.,University of Milan, Milan, Italy
| | - Davide Cavagnetto
- Department of Orthodontics, UOC Maxillofacial and Dental Surgery, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, 20142, Milan, Italy.,University of Milan, Milan, Italy
| | - Valentina Lanteri
- Department of Orthodontics, UOC Maxillofacial and Dental Surgery, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, 20142, Milan, Italy.,University of Milan, Milan, Italy
| | - Antonella Costa
- Department of Orthodontics, UOC Maxillofacial and Dental Surgery, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, 20142, Milan, Italy
| | - Marco Farronato
- Department of Orthodontics, UOC Maxillofacial and Dental Surgery, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, 20142, Milan, Italy.,University of Milan, Milan, Italy
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Rocha BDC, Rosa BSPA, Visconti MA. Utilização da imagem por ressonância magnética na odontologia: revisão de literatura. HU REVISTA 2019. [DOI: 10.34019/1982-8047.2018.v44.13936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
A Imagem por Ressonância Magnética (IRM) tem sido considerada a modalidade de escolha para o diagnóstico de processos patológicos que acometem a articulação temporomandibular, tecidos moles e outros processos inflamatórios. Devido a sua característica não invasiva e livre de radiação ionizante, novas aplicações para a técnica têm sido propostas e estudadas nas mais diversas áreas da Odontologia, como Endodontia, Dentística, Periodontia e Cirurgia Oral. O objetivo neste trabalho é apresentar uma revisão de literatura acerca da utilização da IRM na Odontologia, destacando as vantagens e limitações da técnica.
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State-of-the-Art Digital Imaging in Dentistry: Advanced Research of MRI, CT, CBCT, and Digital Intraoral Imaging. BIOMED RESEARCH INTERNATIONAL 2018; 2018:9057120. [PMID: 29854807 PMCID: PMC5964542 DOI: 10.1155/2018/9057120] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/11/2018] [Accepted: 03/11/2018] [Indexed: 12/25/2022]
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Oyetola EO, Adesina OM, Oluwadaisi A, Adewale A, Adewole O, Anizoba E. Temporomandibular Joint Pain: Clinical Presentations and Response to Conservative Treatments in a Nigerian Tertiary Hospital. J Int Soc Prev Community Dent 2017; 7:98-103. [PMID: 28584778 PMCID: PMC5452573 DOI: 10.4103/jispcd.jispcd_7_17] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Accepted: 04/07/2017] [Indexed: 11/23/2022] Open
Abstract
Aims and Objectives: The aims of this study are to determine the prevalence, pattern of presentation, and response to conservative (medical) interventions among patients who presented with temporomandibular joint (TMJ) pain in a Nigerian teaching hospital. Material and Methods: Consecutive patients who presented in Oral Medicine and Periodontology Clinic of Obafemi Awolowo University Teaching Hospitals' Complex on account of TMJ pain from January 2015 to December 2015 were recruited for the study. They were all interviewed and examined. The severity of pain was recorded using visual analog scale (VAS). Patients were treated with medications and physiotherapy. They were reviewed at 2, 4, and 6 weeks. Those who could not make the appointment were contacted through phone. The findings were recorded and analyzed using STATA version 11. Results: A total of 401 participants were seen, 55 presented on account of TMJ pain. The mean age of patients with TMJ pain was 54 ± 16.9 with 60% being female. Pain was present in all participants; other signs include clicking joint sound (85%), jaw deviation (64%), attrition (24%), and reduced mouth opening (23%). The left joint was more frequently affected (75%). Following 6 weeks of conservative treatments, none of the respondents had VAS score of more than 3. Conclusion: The prevalence of TMJ pain was 13%. TMJ was found to be more common in participants above 50 years with female predilection. Pain was most common symptom seen, and response to conservative treatments as assessed using VAS following 6-week of treatment showed complete remission of the pain.
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Affiliation(s)
- Elijah Olufemi Oyetola
- Department of Preventive and Community Dentistry, Obafemi Awolowo University, Ile Ife, Nigeria
| | | | - Adeniyi Oluwadaisi
- Department of Preventive and Community Dentistry, Obafemi Awolowo University, Ile Ife, Nigeria
| | - Adedotun Adewale
- Department of Preventive and Community Dentistry, Obafemi Awolowo University, Ile Ife, Nigeria
| | - Opeyemi Adewole
- Department of Preventive and Community Dentistry, Obafemi Awolowo University, Ile Ife, Nigeria
| | - E Anizoba
- Department of Preventive and Community Dentistry, Obafemi Awolowo University, Ile Ife, Nigeria
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