17 results on '"Margaix, M."'
Search Results
2. Bisphosphonate-related osteonecrosis of the jaw: A preliminary study of salivary biomarkers: 49
- Author
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Jimenez, Y, Bagan, J V, Sheth, C, Soria, J M, Margaix, M, Sanchis, J M, Díaz, J M, and Poveda-Roda, R
- Published
- 2012
3. Tumors of the temporomandibular joint (TMJ): 52
- Author
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Poveda-Roda, R, Bagan, J V, Sanchis, J M, Díaz, J M, Margaix, M, Marzal, C, Cruz, M, and Hernandez, S
- Published
- 2012
4. Oral squamous cell carcinoma (OSCC) survival: influence of delay in consultation, diagnosis and treatment: 50
- Author
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Poveda-Roda, R, Bagán, J V, Díaz, J M, Sanchis, J M, Margaix, M, Sarrion, G, and Gavalda, C
- Published
- 2012
5. Myofascial Pain: Ultrasound Width of the Masseter Muscle
- Author
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Poveda-Roda R, Moreno P, Bagan J, and Margaix M
- Abstract
Aims: To determine whether subjects with temporomandibular disorders (TMD) manifesting as chronic myofascial pain (MFP) involving the masseter muscle present with significantly greater masseter muscle width, as evidenced by ultrasound, compared to individuals without MFP. Methods: A case-control study was carried out. A total of 31 subjects presenting with MFP of the masticatory muscles involving the masseter muscle and 35 controls with TMD but no diagnosis of MFP, matched by age and sex, were included. Ultrasound was used to measure the maximum width of both masseter muscles at the intermediate point between the origin and insertion of the muscle in the light occlusal contact (LOC) position and under maximum contraction. Each side was analyzed separately. Means were compared by using single-factor analysis of variance and Mann-Whitney U test; P < .05 was considered to reflect statistical significance. Results: In the study group, the right masseter muscle had a mean +/- standard deviation width of 8.6 +/- 1.8 mm under LOC (controls: 8.6 +/- 1.6 mm; P = .85) and 11.5 +/- 2.1 mm under maximum contraction (controls: 11.7 +/- 1.9 mm; P = .86). The analagous measures in the left masseter muscle were 8.6 +/- 1.6 mm under LOC (controls: 8.2 +/- 1.5 mm; P = .42) and 11.3 +/- 1.8 mm under maximum contraction (controls: 11.5 +/- 1.8 mm) (P = .79), respectively. The increase in width of the right masseter muscle was 2.9 +/- 2.1 mm (controls: 3.1 +/- 1.2 mm; P = .67) in absolute terms and 1.4 +/- 0.3 mm (controls: 1.4 +/- 0.2 mm; P = .91) in relative values (width at maximum contraction/LOC width). In the case of the left masseter muscle, the respective values were 2.8 +/- 1.7 mm (controls: 3.2 +/- 0.9 mm; P = .25) and 1.3 +/- 0.2 mm (controls: 1.4 +/- 0.1 mm; P = .32). Conclusion: There were no statistically significant differences in masseter muscle width between MFP subjects and control subjects under LOC conditions or maximum contraction. The increase in width under maximum contraction was likewise not significantly different between the groups.
- Published
- 2018
6. CYP2C8 gene polymorphism and bisphosphonate-related osteonecrosis of the jaw in patients with multiple myeloma
- Author
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Such E, Cervera J, Terpos E, Bagán JV, Avaria A, Gómez I, Margaix M, Ibañez M, Luna I, Cordón L, Roig M, Sanz MA, Dimopoulos MA, and de la Rubia J
- Subjects
stomatognathic diseases ,stomatognathic system - Abstract
Osteonecrosis of the jaw is an uncommon but potentially serious complication of bisphosphonate therapy in multiple myeloma. Previous studies showed that the presence of one or two minor alleles of the cytochrome P450, subfamily 2C polypeptide 8 gene (CYP2C8) polymorphism rs1934951 was an independent prognostic marker associated with development of osteonecrosis of the jaw in multiple myeloma patients treated with bisphosphonates. The aim of this study was to validate the frequency of SNP rs193451 in 79 patients with multiple myeloma. In 9 (22%) patients developing osteonecrosis of the jaw, a heterozygous genotype was found, in contrast with those who did not develop osteonecrosis of the jaw (n=4, 11%) or healthy individuals (n=6, 13%). We found no differences in the cumulative risk of developing osteonecrosis of the jaw between patients homozygous and heterozygous for the major allele. We were unable to confirm a significant association between this polymorphism and the risk of developing osteonecrosis of the jaw.
- Published
- 2011
7. Epstein-Barr virus in oral proliferative verrucous leukoplakia and squamous cell carcinoma : a preliminary study
- Author
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Jose Bagan, Jiménez, Y., Murillo, J., Poveda, R., Diaz, J. M., Gavaldá, C., Margaix, M., Scully, C., Alberola, T. M., Torres Puente, M., and Pérez Alonso, M.
- Subjects
stomatognathic diseases ,hemic and lymphatic diseases ,UNESCO::CIENCIAS MÉDICAS ,CIENCIAS MÉDICAS [UNESCO] - Abstract
The aim of this study was to analyze proliferative verrucous leukoplakia (PVL) and oral squamous cell carcinoma (OSCC) for the possible presence of Epstein-Barr virus (EBV). We studied three groups: Sub-Group 1 was composed of 10 patients with PVL, (6 of whom had developed OSCC); Sub-Group 2 comprised 5 patients with OSCC but no preceding PVL; and Sub-Group 3 were 5 controls with clinically normal oral mucosa. Oral biopsies from all cases were examined for Epstein-Barr virus (EBV) by nested PCR. EBV was detected in 60% of Sub-Group 1 patients (PVL ) and in 40% of Sub-Group 2 (OSCC), but in 0% of SubGroup 3 (controls).
- Published
- 2008
8. Pseudotumors and tumors of the temporomandibular joint. A review
- Author
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Poveda-Roda, R., primary, Bagan, JV., additional, Sanchis, JM., additional, and Margaix, M., additional
- Published
- 2013
- Full Text
- View/download PDF
9. Bisphosphonate-related osteonecrosis of the jaw: A preliminary study of salivary biomarkers
- Author
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Jimenez, Y., Bagan, J. V., Chirag Chandrakant Sheth, Soria, J. M., Margaix, M., Sanchis, J. M., Diaz, J. M., and Poveda-Roda, R.
10. Utility of imaging techniques in the diagnosis of oral cancer.
- Author
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Sarrión Pérez MG, Bagán JV, Jiménez Y, Margaix M, and Marzal C
- Subjects
- Carcinoma, Squamous Cell pathology, Early Detection of Cancer, Head and Neck Neoplasms diagnostic imaging, Head and Neck Neoplasms secondary, Humans, Magnetic Resonance Imaging, Mouth Neoplasms pathology, Neoplasm Invasiveness, Neoplasm Staging, Positron Emission Tomography Computed Tomography, Positron-Emission Tomography, Tomography, X-Ray Computed, Carcinoma, Squamous Cell diagnostic imaging, Mouth Neoplasms diagnostic imaging
- Abstract
Purpose: Imaging techniques such as magnetic resonance imaging (MRI), computed tomography (CT), and positron emission tomography (PET) are often used to complement the clinical exploration and staging of oral squamous cell carcinoma (OSCC). Which of these techniques is best in establishing correct staging and treatment planning is not clear, however. This study aims to determine which technique is most appropriate for diagnosing the primary tumor and for detecting bone invasion and neck metastases., Material and Methods: A Medline literature search was made over the last 10 years. In each selected study, we recorded the sample size and sensitivity, specificity and precision. Strengths and limitations of each study were assessed also., Results: Eight articles relating to detection of the primary tumor, 19 to bone invasion, and 28 to neck metastases were selected and compared., Conclusion: Despite the high precision of positron emission tomography (PET) or hybrid techniques in detecting the primary tumor, they have not replaced magnetic resonance imaging (MRI) or computed tomography (CT), particularly in the case of small lesions. MRI and CT are adequate techniques in the assessment of bone invasion.Recent studies have shown good results with PET-CT and cone-beam CT, but future studies are needed to demonstrate their benefits. Despite the high precision of PET and PET-CT, their use in assessing neck metastases remains subject to controversy, and their use in all patients with OSCC is not justified. CT and MRI are useful in determining the N category., (Copyright © 2015 European Association for Cranio-Maxillo-Facial Surgery. Published by Elsevier Ltd. All rights reserved.)
- Published
- 2015
- Full Text
- View/download PDF
11. Diagnostic validity (sensitivity and specificity) of panoramic X-rays in osteoarthrosis of the temporomandibular joint.
- Author
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Poveda-Roda R, Bagan J, Carbonell E, and Margaix M
- Subjects
- Female, Humans, Magnetic Resonance Imaging, Male, Middle Aged, Retrospective Studies, Sensitivity and Specificity, Osteoarthritis diagnostic imaging, Radiography, Panoramic, Temporomandibular Joint Disorders diagnostic imaging
- Abstract
Objective: To establish the diagnostic validity of panoramic X-rays (PRx) in temporomandibular osteoarthrosis (OA) using the clinical and imaging criteria (magnetic resonance imaging, MRI) of the Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD) as gold standards., Methods: Eighty-four patients with full clinical records (RDC/TMD), PRx, and MRI scans were selected. Two stomatologists evaluated the PRx for OA. The MRI findings were derived from the radiologist report. Intra/inter-examiner concordance was established. The diagnostic concordance between clinical signs and MRI was determined. Both were used as gold standards to calculate the validity of PRx in OA., Results: The diagnostic validity of PRx with MRI as gold standard was sensitivity=69.0% and specificity=67.9%. The diagnostic validity of PRx with clinical criteria as gold standard was sensitivity=61.6% and specificity=57.9%., Discussion: Panoramic X-rays have scant diagnostic validity in temporomandibular osteoarthrosis when taking MRI or clinical criteria of RDC/TMD as gold standards.
- Published
- 2015
- Full Text
- View/download PDF
12. Bisphosphonates-related osteonecrosis of the jaws: a preliminary study of salivary interleukins.
- Author
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Bagan J, Sheth CC, Soria JM, Margaix M, and Bagan L
- Subjects
- Biomarkers analysis, Bone Density Conservation Agents therapeutic use, Diphosphonates therapeutic use, Female, Humans, Imidazoles therapeutic use, Injections, Intravenous, Interleukin-1alpha analysis, Interleukin-1beta analysis, Male, Mandibular Diseases immunology, Maxillary Diseases immunology, Middle Aged, Proteome analysis, Zoledronic Acid, Bisphosphonate-Associated Osteonecrosis of the Jaw immunology, Interleukin 1 Receptor Antagonist Protein analysis, Interleukin-1 analysis, Saliva immunology, Salivary Proteins and Peptides analysis
- Abstract
Objective: The aim of this preliminary study was analyze the possible alterations in some salivary interleukins, usually associated with the inflammatory processes., Material and Methods: The study comprised three groups: group 1, with 26 cases with bisphosphonates-related osteonecrosis of the jaws (BRONJ). Group 2, with 29 patients who had received iBF but without BRONJ. Group 3, with 26 control patients not treated with BF and without oral lesions. We collected unstimulated whole saliva in all groups. A semiquantitative study was performed based on a cytokine array panel. We used the proteome profiler array for the study. We analyzed: Interleukin 1 alpha (IL-1α), interleukin-1 receptor antagonist (IL-1RA), and interleukin 1 beta (IL-1β)., Results: We found higher salivary values for all the cytokines studied in group 1 than in group 2 and 3. IL-1β showed the major differences compared with control group. (P < 0.05), Conclusions: This preliminary study confirms that there are alterations in these interleukins in patients with BRONJ. These results give support to further additional salivary studies on these biomarkers by quantitative measures., (© 2012 John Wiley & Sons A/S. Published by Blackwell Publishing Ltd.)
- Published
- 2013
- Full Text
- View/download PDF
13. Lichen sclerosus of the oral mucosa: a case report.
- Author
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Jiménez Y, Gavaldá C, Carbonell E, Margaix M, and Sarrión G
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- Adult, Female, Humans, Mouth Diseases pathology, Lichen Sclerosus et Atrophicus pathology, Mouth Mucosa pathology
- Abstract
Lichen sclerosus or lichen sclerosus et atrophicus is a chronic inflammatory disease predominantly affecting the genital mucosa and skin. Clinically, it is characterized by white atrophic plaques in the anogenital region. The lesions are generally asymptomatic, but may cause discomfort with itching and pain. Extragenital mucosal involvement is very unusual, and lesions limited to the oral mucosa are even less frequent. Knowledge of such lesions is important in order to establish a differential diagnosis with other white oral lesions, and histological confirmation is required. We present the case of a 31-year-old woman with a well delimited, pearly white lesion located in the upper gingival mucosa, lip mucosa and adjacent skin. The lesion had led to loss of periodontal attachment of the affected tooth, causing pain in response to tooth brushing. The biopsy confirmed lichen sclerosus, and treatment was provided in the form of intralesional corticoid injections, followed by improvement of the mucosal lesion, though without recovery of the periodontal loss.
- Published
- 2008
14. Pediatric dental care in a tertiary public hospital. Four years of experience in the Service of Stomatology of Valencia University General Hospital (Valencia, Spain).
- Author
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Poveda R, Jiménez Y, Gavaldá C, Sanchís JM, Carbonell E, Margaix M, and Sarrión G
- Subjects
- Adolescent, Child, Female, Hospitals, Public, Humans, Male, Spain, Time Factors, Child Health Services, Dental Service, Hospital
- Abstract
Unlabelled: A study is made of the experience gained with the Child Oral Care Program (Plan de Atención Dental Infantil, PADI) in the Service of Stomatology of Valencia University General Hospital (Valencia, Spain) after four years in operation (July 2003 - July 2007)., Study Design: The sample comprised 2626 children between 5-14 years of age, pertaining to department 9 of the Valencian public health system. A clinical history was compiled in each case, a radiological study was made, and a treatment plan was elaborated including fillings, extractions, and control visits., Results: Of the 2626 designated children, 2369 visited our Service - mostly referred from the Preventive Dental Care Units. A total of 5784 fillings were carried out (93.3% with silver amalgam, 5.6% with composites and the rest as provisional fillings). The permanent first molars were the teeth with the largest number of fillings (70.2% of the total). These were followed in order of frequency by the second molars (19.1%). As regards composite resin fillings, most involved the upper central incisors, followed by the upper lateral incisors. A total of 644 extractions were performed, corresponding to 110 permanent teeth and 534 temporary teeth. In the case of the permanent dentition, the first molars were the most commonly removed teeth. In the temporary dentition, the most frequently removed teeth were the second molars., Conclusions: The response of the population to this program has been very good, and reinforces the preventive measures already in place, with the provision of restorative treatments to improve the oral and dental health of the pediatric population, and yielding good results in terms of the program quality indicators. The Service of Stomatology (Valencia University General Hospital) is able to address the demand and offers the public health network integrated and continuous patient care.
- Published
- 2008
15. An update on the management of anticoagulated patients programmed for dental extractions and surgery.
- Author
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Jiménez Y, Poveda R, Gavaldá C, Margaix M, and Sarrión G
- Subjects
- Administration, Oral, Drug Monitoring, Humans, Oral Surgical Procedures, Risk Factors, Anticoagulants administration & dosage, Tooth Extraction
- Abstract
Oral anticoagulants (OACs) antagonizing vitamin K - fundamentally sodium warfarin and acenocoumarol - are widely used for preventing arterial thromboembolism in patients with atrial fibrillation and/or heart valve prostheses, and for the treatment and prevention of deep venous thrombosis and pulmonary embolism. The handling of these drugs requires correct monitorization and dose adjustment to obtain the desired therapeutic effect while minimizing the adverse effects associated both with excessive anticoagulation (which leads to bleeding) and with insufficient antithrombotic action (which can produce thrombosis). This is particularly important when patients must be subjected to surgical procedures such as tooth extractions. In this context, a number of management recommendations are available. The present study offers an update on the recommendations for the management of anticoagulated patients programmed for tooth extractions. In recent years, most studies do not recommend reducing or interrupting anticoagulation, or replacing it with heparin, prior to tooth extraction - provided therapeutic international normalized ration (INR) levels are maintained, with emphasis on the application of local measures such as antifibrinolytic agents, for the control of hemostasia.
- Published
- 2008
16. Epstein-Barr virus in oral proliferative verrucous leukoplakia and squamous cell carcinoma: A preliminary study.
- Author
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Bagan JV, Jiménez Y, Murillo J, Poveda R, Díaz JM, Gavaldá C, Margaix M, Scully C, Alberola TM, Torres Puente M, and Pérez Alonso M
- Subjects
- Adolescent, Adult, Aged, Aged, 80 and over, Female, Humans, Male, Middle Aged, Carcinoma, Squamous Cell virology, Herpesvirus 4, Human isolation & purification, Leukoplakia, Oral pathology, Leukoplakia, Oral virology, Mouth Neoplasms virology
- Abstract
The aim of this study was to analyze proliferative verrucous leukoplakia (PVL) and oral squamous cell carcinoma (OSCC) for the possible presence of Epstein-Barr virus (EBV). We studied three groups: Sub-Group 1 was composed of 10 patients with PVL, (6 of whom had developed OSCC); Sub-Group 2 comprised 5 patients with OSCC but no preceding PVL; and Sub-Group 3 were 5 controls with clinically normal oral mucosa. Oral biopsies from all cases were examined for Epstein-Barr virus (EBV) by nested PCR. EBV was detected in 60% of Sub-Group 1 patients (PVL ) and in 40% of Sub-Group 2 (OSCC), but in 0% of Sub-Group 3 (controls).
- Published
- 2008
17. A review of temporomandibular joint disease (TMJD). Part II: Clinical and radiological semiology. Morbidity processes.
- Author
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Poveda Roda R, Díaz Fernández JM, Hernández Bazán S, Jiménez Soriano Y, Margaix M, and Sarrión G
- Subjects
- Humans, Radiography, Temporomandibular Joint Disorders complications, Temporomandibular Joint Disorders diagnostic imaging, Temporomandibular Joint Disorders diagnosis
- Abstract
The clinical signs and symptoms of greatest semiologic value in temporomandibular joint disease (TMJD) are muscle pain, joint pain, limitations in mandibular movement, and joint sounds. Imaging studies of the joint are very useful for establishing the diagnosis and for discarding other disease processes, though in many cases diagnostic error results from the detection of a large proportion of patients with alterations in the imaging studies but with no associated clinical manifestations. Panoramic X-rays and magnetic resonance imaging are the most commonly used complementary techniques for diagnosing TMJD. MRI may be regarded as the imaging technique of choice, particularly when studying the soft tissues. Biochemical evaluation of the joint synovial fluid has improved our understanding of TMJD pathogenesis, though to date such parameters have not been extended to clinical practice. Myofascial pain with positive painful palpation of the masticatory muscles; joint disc displacements with reduction characterized by the presence of opening or opening and closing clicks; disc displacements without reduction characterized by limitations in oral aperture; and osteoarthritis / osteoarthrosis characterized by the auscultation of friction sounds during mandibular movement, are the morbidity processes most often seen in the context of TMJD. The present study offers a review of the semiology and morbidity processes of the temporomandibular joint.
- Published
- 2008
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