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Piedra-Cascón W, Pérez-López J, Veiga-López B, Oteo-Morilla C, Pose-Rodriguez JM, Gallas-Torreira M. Influence of base designs on the manufacturing accuracy of vat-polymerized diagnostic casts using two different technologies. J Prosthet Dent 2024:S0022-3913(24)00285-3. [PMID: 38714457 DOI: 10.1016/j.prosdent.2024.04.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 04/02/2024] [Accepted: 04/04/2024] [Indexed: 05/09/2024]
Abstract
STATEMENT OF PROBLEM Diagnostic casts can incorporate different base designs and be manufactured using different vat-polymerization technologies. However, the influence of the interrelation between the base design and the 3D printing technology on the casts' final accuracy remains unclear. PURPOSE The purpose of this in vitro study was to assess the influence of different base designs of 3D printed casts on the accuracy of 2 vat-polymerization technologies. MATERIAL AND METHODS A digital maxillary cast was obtained and used to generate 3 different base designs: solid (S group), honeycombed (HC group), and hollow (H group). The HC and H groups were subdivided based on the wall thickness of the cast design, resulting in 2 subgroups with thicknesses of 1 mm (HC1 and H1) and 2 mm (HC2 and H2) (N=100, n=10). Eleven reference cubes were added to each specimen for subsequent measurements. Specimens were manufactured by using 2 vat-polymerization 3D printers: Nextdent 5100 (ND group) and Sonic Mini 4K (SM4K group) and a resin material suitable for both 3D printers (Nextdent Model 2.0). A coordinate measuring machine quantified the linear and 3-dimensional discrepancies between the digital cast and each reference specimen. Trueness was defined as the average absolute dimensional discrepancy between the virtual cast and the specimens produced through additive manufacturing (AM), while precision was delineated as the standard deviation in dimensional discrepancies between the digital cast and the AM specimens. The data were analyzed using the Kruskal-Wallis and Mann-Whitney U pairwise comparison tests (α=.05). RESULTS For the NextDent group the trueness ranged from 21.83 µm to 28.35 µm, and the precision ranged from 17.82 µm to 37.70 µm. For the Phrozen group, the trueness ranged from 45.15 µm to 64.51 µm, and the precision ranged from 33.51 µm to 48.92 µm. The Kruskal-Wallis test showed significant differences on the x-, y-, and z-axes and in the 3D discrepancy (all P<.001). On the x-axis, the Mann-Whitney U test showed significant differences for the Phrozen group between the H-2 and H-1 groups (P=.001), H-2 and S groups (P<.001), and HC-2 and S groups (P=.012). On the y-axis, significant differences were found in the Phrozen group between the H-2 and H-1 groups (P=.001), the H-2 and S, H-1 and HC-1, and HC-1 and S groups (P<.001), the H-1 and HC-2 groups (P=.007), and the HC-2 and S groups (P=.009). The NextDent group exhibited significant differences, particularly among the HC-1 and H-2 groups (P=.004), H-1 (P=.020), and HC-2 (P=.001) groups; and on the z-axis significant differences were found in the Phrozen group between the H-2 and H-1 and S groups and the HC-2 group and H-1 and S groups (both P<.001). In the NextDent group, significant differences were found between the H-2 and HC-2 (P=.047) and HC-1 (P=.028) groups. For the 3D discrepancy analysis, significant differences were found in the Phrozen group between the H-2 and H-1 and S groups (P<.001), the H-1 and HC-2 groups (P=.001), the S and HC-1 and HC-2 groups (P<.001), and the H-1 and HC-1 groups (P=.002). In the NextDent group, significant differences were observed between the H-2 and HC-1 groups (P=.012). CONCLUSIONS The accuracy of digital casts depends on the manufacturing trinomial and base design of the casts. The honeycomb and hollow based designs provided the highest accuracy in the NextDent and Phrozen groups respectively for the material polymer tested. All specimens fell in the clinically acceptable range.
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Affiliation(s)
- Wenceslao Piedra-Cascón
- Doctoral student, Doctoral Program in Dental Science, Stomatology Area, Department of Surgery and Medical-Surgery Specialities, University of Santiago de Compostela (USC), Santiago de Compostela, Spain; Affiliate Faculty, Esthetic Dentistry Program, Complutense University of Madrid (UCM), Madrid, Spain; Private practice, Oviedo, Spain; and Researcher, Movumtech, Madrid, Spain.
| | | | | | - Carlos Oteo-Morilla
- Affiliate Faculty Graduate in Esthetic Dentistry Program, Complutense University of Madrid (UCM), Madrid, Spain; and Private practice, Madrid, Spain
| | - Jose Manuel Pose-Rodriguez
- Associated Lecturer, Adult Comprehensive Dental Clinic, Stomatology Area, Department of Surgery and Medical-Surgery Specialities, Digital Dentistry Unit of the School of Dentistry, Faculty of Medicine and Dentistry, University of Santiago de Compostela (USC), Santiago de Compostela, Spain
| | - Mercedes Gallas-Torreira
- Senior Lecturer, Planning and Management in Dental Clinics, Stomatology Area, Department of Surgery and Medical-Surgery Specialities, Digital Dentistry Unit of the School of Dentistry, Faculty of Medicine and Dentistry, University of Santiago de Compostela (USC), Santiago de Compostela, Spain
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Al-Tarawneh ZA, Pena-Cristóbal M, Cernadas E, Suarez-Peñaranda JM, Fernández-Delgado M, Mbaidin A, Gallas-Torreira M, Gándara-Vila P. OralImmunoAnalyser: a software tool for immunohistochemical assessment of oral leukoplakia using image segmentation and classification models. Front Artif Intell 2024; 7:1324410. [PMID: 38469158 PMCID: PMC10925674 DOI: 10.3389/frai.2024.1324410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Accepted: 02/01/2024] [Indexed: 03/13/2024] Open
Abstract
Oral cancer ranks sixteenth amongst types of cancer by number of deaths. Many oral cancers are developed from potentially malignant disorders such as oral leukoplakia, whose most frequent predictor is the presence of epithelial dysplasia. Immunohistochemical staining using cell proliferation biomarkers such as ki67 is a complementary technique to improve the diagnosis and prognosis of oral leukoplakia. The cell counting of these images was traditionally done manually, which is time-consuming and not very reproducible due to intra- and inter-observer variability. The software presently available is not suitable for this task. This article presents the OralImmunoAnalyser software (registered by the University of Santiago de Compostela-USC), which combines automatic image processing with a friendly graphical user interface that allows investigators to oversee and easily correct the automatically recognized cells before quantification. OralImmunoAnalyser is able to count the number of cells in three staining levels and each epithelial layer. Operating in the daily work of the Odontology Faculty, it registered a sensitivity of 64.4% and specificity of 93% for automatic cell detection, with an accuracy of 79.8% for cell classification. Although expert supervision is needed before quantification, OIA reduces the expert analysis time by 56.5% compared to manual counting, avoiding mistakes because the user can check the cells counted. Hence, the SUS questionnaire reported a mean score of 80.9, which means that the system was perceived from good to excellent. OralImmunoAnalyser is accurate, trustworthy, and easy to use in daily practice in biomedical labs. The software, for Windows and Linux, with the images used in this study, can be downloaded from https://citius.usc.es/transferencia/software/oralimmunoanalyser for research purposes upon acceptance.
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Affiliation(s)
- Zakaria A. Al-Tarawneh
- Computer Science Department, Mutah University, Karak, Jordan
- Centro Singular de Investigación en Tecnoloxías Intelixentes da USC, Universidade de Santiago de Compostela (USC), Santiago de Compostela, Spain
| | - Maite Pena-Cristóbal
- Oral Medicine, Oral Surgery and Implantology Unit, MedOralRes Group of University of Santiago, Santiago de Compostela, Spain
| | - Eva Cernadas
- Centro Singular de Investigación en Tecnoloxías Intelixentes da USC, Universidade de Santiago de Compostela (USC), Santiago de Compostela, Spain
| | - José Manuel Suarez-Peñaranda
- Pathological Anatomy Service, University Hospital Complex of Santiago (CHUS), Santiago de Compostela, Spain
- Department of Forensic Sciences and Pathology, University of Santiago, Santiago de Compostela, Spain
| | - Manuel Fernández-Delgado
- Centro Singular de Investigación en Tecnoloxías Intelixentes da USC, Universidade de Santiago de Compostela (USC), Santiago de Compostela, Spain
| | - Almoutaz Mbaidin
- Computer Science Department, Mutah University, Karak, Jordan
- Centro Singular de Investigación en Tecnoloxías Intelixentes da USC, Universidade de Santiago de Compostela (USC), Santiago de Compostela, Spain
| | - Mercedes Gallas-Torreira
- Oral Medicine, Oral Surgery and Implantology Unit, MedOralRes Group of University of Santiago, Santiago de Compostela, Spain
| | - Pilar Gándara-Vila
- Oral Medicine, Oral Surgery and Implantology Unit, MedOralRes Group of University of Santiago, Santiago de Compostela, Spain
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Vilar-Villanueva M, Somoza-Martín JM, Blanco-Carrión A, García-García A, García-Carnicero T, Marichalar-Mendía X, Gallas-Torreira M, Gándara-Vila P. Importance of the vaporization margin during CO 2 laser treatment of oral leukoplakia: A survival study. Oral Dis 2023; 29:2689-2695. [PMID: 35942539 DOI: 10.1111/odi.14345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 07/16/2022] [Accepted: 08/05/2022] [Indexed: 11/29/2022]
Abstract
OBJECTIVES The main purpose of this study was to assess the response of oral leukoplakia to CO2 laser vaporization treatment, as well as determining possible factors that may affect recurrence of lesions. MATERIALS AND METHODS A retrospective study was conducted, in which the medical records of patients who had been clinically and histologically diagnosed with oral leukoplakia and treated with CO2 laser between 1996 and 2019 at the Oral Medicine Teaching Unit of the Faculty of Dentistry of the University of Santiago de Compostela were reviewed. RESULTS Fifty-eight patients were included: 36 female and 22 male subjects, with a mean age of 63.7 years old (SD ±13.1). The average follow-up time was 57.5 months (SD ±57.9). A relapse rate of 52.6% was determined. Of all the studied variables, the margin was the only one for which a statistically significant association with recurrence of lesions was demonstrated (p < 0.05). CONCLUSION The vaporization of lesions using CO2 laser with a safety margin of at least 3 mm from the clinical limits of OL is a key factor in preventing recurrence.
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Affiliation(s)
- Marta Vilar-Villanueva
- Oral Medicine, Oral Surgery and Implantology Unit, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - José Manuel Somoza-Martín
- Oral Medicine, Oral Surgery and Implantology Unit, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - Andrés Blanco-Carrión
- Oral Medicine, Oral Surgery and Implantology Unit, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - Abel García-García
- Oral Medicine, Oral Surgery and Implantology Unit, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - Tamara García-Carnicero
- Oral Medicine, Oral Surgery and Implantology Unit, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - Xabier Marichalar-Mendía
- Department of Nursing I, University of the Basque Country (UPV/EHU), Leioa, Bizkaia, Spain
- Biocruces Bizkaia Health Research Institute, Barakaldo, Bizkaia, Spain
- Osakidetza, Hospital Universitario Cruces, Barakaldo, Bizkaia, Spain
| | - Mercedes Gallas-Torreira
- School of Medicine and Dentistry, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - Pilar Gándara-Vila
- Oral Medicine, Oral Surgery and Implantology Unit, University of Santiago de Compostela, Santiago de Compostela, Spain
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Piedra-Cascón W, Adhikari RR, Özcan M, Krishnamurthy VR, Revilla-León M, Gallas-Torreira M. Accuracy assessment (trueness and precision) of a confocal based intraoral scanner under twelve different ambient lighting conditions. J Dent 2023; 134:104530. [PMID: 37116740 DOI: 10.1016/j.jdent.2023.104530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Revised: 04/05/2023] [Accepted: 04/25/2023] [Indexed: 04/30/2023] Open
Abstract
OBJECTIVES . The ambient lighting condition has been identified as an important factor that influences the accuracy of intraoral scanners (IOSs). The purpose of this study was to evaluate the influence of 12 different ambient lighting conditions on the accuracy of a confocal based IOS (PrimeScan). MATERIALS AND METHODS . A typodont was digitized using a laboratory scanner (L2i) to obtain a reference standard tessellation language (STLr) file. A restorative dentist recorded the scans using an IOS (PrimeScan) under 12 different ambient lighting conditions where the luminosity was measured using a light meter (LX1330B Light Meter). Twelve groups were created, namely 0-, 500-, 1000-, 2000-, 3000-, 4000-, 5000-, 6000-, 7000-, 8000-, 9000-, and 10 000-lux groups. Ten STL files were recorded per group. The STLr file was used as a reference with which to compare the distortion of the 120 STL files obtained using a software program (Meshlab). The normality Shapiro-Wilk test indicated that the distributions were not normal. Therefore, the nonparametric Kruskal-Wallis and pairwise multicomparison tests were used to analyze the data (α = 0.05). RESULTS . The group with the 1000-lux lighting condition obtained the smallest median ±interquartile range (IQR) with scanning distortion values of 69.5 ±97.4 µm, followed by the 8000-lux group with a median ±IQR of 166.5 ±318.1 µm. The 0-lux group presented the highest distortion values with a mean ±IQR of 355.5 ±488.0 µm (p < 0.05). CONCLUSIONS . Ambient lighting conditions influenced the accuracy of the IOS tested. The highest accuracy values were obtained with 1000 lux. The lowest scanning accuracy was obtained with 0 lux.
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Affiliation(s)
- Wenceslao Piedra-Cascón
- Doctoral Student, Doctoral Progamme in Dental Science, Stomatology Area, Department of Surgery and Medical-Surgery Specialitites. University of Santiago de Compostela, Spain. Affiliate Faculty Esthetic Dentistry Program, Complutense University of Madrid. Researcher at MovumTech, Spain
| | - Riddhi R Adhikari
- Graduate Research Assistant J. Mike Walker '66 Department of Mechanical Engineering, Texas A&M University, College Station, TX
| | - Mutlu Özcan
- Professor and Head, Dental Materials Unit, Center for Dental and Oral Medicine, University of Zürich, Switzerland
| | - Vinayak R Krishnamurthy
- Assistant Faculty J. Mike Walker '66 Department of Mechanical Engineering, Texas A&M University, College Station, TX
| | - Marta Revilla-León
- Affiliate Assistant Professor, Graduate Prosthodontics, Department of Restorative Dentistry, School of Dentistry, University of Washington, Seattle, Wash; Director of Research and Digital Dentistry, Kois Center, Seattle, Wash; and Adjunct Professor, Department of Prosthodontics, Tufts University, Boston, MA
| | - Mercedes Gallas-Torreira
- Senior Lecturer in Planification and Management in Dental Clinics. Stomatology Area, Department of Surgery and Medical-Surgery Specialities. Digital Dentistry Unit of the School of Dentistry, Faculty of Medicine and Dentistry. University of Santiago de Compostela, Spain..
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Camolesi GCV, Marichalar-Mendía X, Padín-Iruegas ME, Spanemberg JC, López-López J, Blanco-Carrión A, Gándara-Vila P, Gallas-Torreira M, Pérez-Sayáns M. Efficacy of photobiomodulation in reducing pain and improving the quality of life in patients with idiopathic burning mouth syndrome. A systematic review and meta-analysis. Lasers Med Sci 2022; 37:2123-2133. [PMID: 35122543 PMCID: PMC9148274 DOI: 10.1007/s10103-022-03518-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 01/28/2022] [Indexed: 12/28/2022]
Abstract
Burning mouth syndrome is a chronic condition, which is characterised by a burning sensation or pain in the mucosa of the oral cavity. Treatment options include antidepressants, antipsychotics, anticonvulsants, analgesics, hormone replacement therapies and more recently photobiomodulation. This study aims to perform a systematic review with meta-analysis in order to determine the effect of photobiomodulation on pain relief and the oral health-related quality of life associated with this condition. A bibliographical search of the Pubmed, Embase, Web of Science and Scopus databases was conducted. Only randomised clinical trials were included. Pain and quality of life were calculated as mean difference and pooled at different treatment points (baseline = T0 and final time point = Tf) and laser modality. From a total of 103 records, 7 articles were retrieved for inclusion. PBM group had a greater decrease in pain than control group at Tf with a mean difference = − 2.536 (IC 95% − 3.662 to − 1.410; I2 = 85.33%, p < 0.001). An improvement in oral health-related quality of life was observed in both groups, although this was more significant in the photobiomodulation group mean difference = − 5.148 (IC 95% − 8.576 to − 1.719; I2 = 84.91%, p = 0.003). For the red laser, a greater improvement than infrared was observed, in pain, mean difference = − 2.498 (IC 95% − 3.942 to − 1.053; I2 = 79.93%, p < 0.001), and in quality of life, mean difference = − 8.144 (IC 95% − 12.082 to − 4.206; I2 = 64.22%, p = 0.027). Photobiomodulation, in particular, red laser protocols, resulted in improvement in pain and in quality of life of burning mouth syndrome patients.
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Affiliation(s)
- Gisela Cristina Vianna Camolesi
- Faculty of Medicine and Dentistry, University of Santiago de Compostela, Santiago de Compostela C.P, Entrerríos s/n, 15782, Galicia, Spain.,Oral Medicine, Oral Surgery and Implantology Unit (MedOralRes), Faculty of Medicine and Dentistry, University of Santiago de Compostela, Santiago de Compostela C.P, Entrerríos s/n, 15782, Galicia, Spain
| | - Xabier Marichalar-Mendía
- Nursing I Department, University of the Basque Country (UPV/EHU), C.P. 48940, Leioa, Bizkaia, Spain
| | - Maria Elena Padín-Iruegas
- Human Anatomy and Embryology Area, Department of Functional Biology and Health Sciences, Faculty of Physiotherapy, Pontevedra, Spain.
| | - Juliana Cassol Spanemberg
- Oral Medicine and Public Health, Faculty of Dentistry, Universidad Fernando Pessoa-Canarias, Santa María de Guía, Calle de la Juventud s/n, C.P. 35450, Gran Canaria, Spain
| | - Jose López-López
- Department of Odontostomatology, Faculty of Medicine and Health Sciences, School of Dentistry, University of Barcelona//Oral Health and Masticatory System Group-IDIBELL, C.P. 08907, Barcelona, Cataluña, Spain
| | - Andrés Blanco-Carrión
- Oral Medicine, Oral Surgery and Implantology Unit (MedOralRes), Faculty of Medicine and Dentistry, University of Santiago de Compostela, Santiago de Compostela C.P, Entrerríos s/n, 15782, Galicia, Spain.,Health Research Institute of Santiago (IDIS) (ORALRES), Santiago de Compostela, Spain
| | - Pilar Gándara-Vila
- Oral Medicine, Oral Surgery and Implantology Unit (MedOralRes), Faculty of Medicine and Dentistry, University of Santiago de Compostela, Santiago de Compostela C.P, Entrerríos s/n, 15782, Galicia, Spain.,Health Research Institute of Santiago (IDIS) (ORALRES), Santiago de Compostela, Spain
| | - Mercedes Gallas-Torreira
- Oral Medicine, Oral Surgery and Implantology Unit (MedOralRes), Faculty of Medicine and Dentistry, University of Santiago de Compostela, Santiago de Compostela C.P, Entrerríos s/n, 15782, Galicia, Spain.,Health Research Institute of Santiago (IDIS) (ORALRES), Santiago de Compostela, Spain
| | - Mario Pérez-Sayáns
- Oral Medicine, Oral Surgery and Implantology Unit (MedOralRes), Faculty of Medicine and Dentistry, University of Santiago de Compostela, Santiago de Compostela C.P, Entrerríos s/n, 15782, Galicia, Spain.,Health Research Institute of Santiago (IDIS) (ORALRES), Santiago de Compostela, Spain
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Lorenzo-Pouso AI, Gallas-Torreira M, Pérez-Sayáns M, Chamorro-Petronacci CM, Alvarez-Calderon O, Takkouche B, Supuran CT, García-García A. Prognostic value of CAIX expression in oral squamous cell carcinoma: a systematic review and meta-analysis. J Enzyme Inhib Med Chem 2021; 35:1258-1266. [PMID: 32466707 PMCID: PMC7337009 DOI: 10.1080/14756366.2020.1772250] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Carbonic anhydrase IX (CAIX) is a hypoxia-related protein considered as a predictor for oral squamous cell carcinoma (OSCC) biological behaviour. Nevertheless, this prognostic value is still yet to be validated. We aim to quantify prognostic significance of CAIX overexpression in OSCC by meta-analysis. We performed searches in MEDLINE, EMBASE, SCOPUS, WOS, WHO’S databases, CPCI, and OATD from inception to August 2019. Overall survival (OS), disease-free survival (DFS), locoregional control (LC), and disease-specific survival (DSS) were considered as outcomes of interest. Overall 18 studies were included. CAIX overexpression was associated with worse OS (hazard ratio [HR] = 1.45 95% confidence interval [CI] 1.17–1.80) and DFS (HR = 1.98 95% CI 1.18–3.32). To the contrary, it was neither associated with LC (HR = 1.01 95% CI 0.50–2.02) nor with DSS (HR = 1.35 95% CI 0.78–2.33). Heterogeneity was negligible in all analyses except for DSS. Small studies effect was not significant for OS and DFS. This study shows that immunohistochemical CAIX assessment is a useful OSCC prognostic biomarker.
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Affiliation(s)
- Alejandro I Lorenzo-Pouso
- Oral Medicine, Oral Surgery and Implantology Unit, Faculty of Medicine and Odontology, The Health Research Institute Foundation, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - Mercedes Gallas-Torreira
- Oral Medicine, Oral Surgery and Implantology Unit, Faculty of Medicine and Odontology, The Health Research Institute Foundation, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - Mario Pérez-Sayáns
- Oral Medicine, Oral Surgery and Implantology Unit, Faculty of Medicine and Odontology, The Health Research Institute Foundation, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - Cintia M Chamorro-Petronacci
- Oral Medicine, Oral Surgery and Implantology Unit, Faculty of Medicine and Odontology, The Health Research Institute Foundation, University of Santiago de Compostela, Santiago de Compostela, Spain
| | | | - Bahi Takkouche
- Department of Preventive Medicine, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - Claudiu T Supuran
- Department of NEUROFARBA, Section of Pharmaceutical and Nutraceutical Sciences, University of Florence, Florence, Italy
| | - Abel García-García
- Oral Medicine, Oral Surgery and Implantology Unit, Faculty of Medicine and Odontology, The Health Research Institute Foundation, University of Santiago de Compostela, Santiago de Compostela, Spain
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7
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Chamorro-Petronacci C, Perez-Sayáns M, Padín-Iruegas ME, Marichalar-Mendia X, Gallas-Torreira M, García García A. Differential expression of snoRNAs in oral squamous cell carcinomas: new potential diagnostic markers. J Enzyme Inhib Med Chem 2018; 33:424-427. [PMID: 29372649 PMCID: PMC6010090 DOI: 10.1080/14756366.2018.1426574] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 01/07/2018] [Accepted: 01/08/2018] [Indexed: 01/16/2023] Open
Abstract
BACKGROUND Small nucleolar RNAs (snoRNAs) are small non-coding RNA sequences whose most studied function is ribosome biogenesis. The altered expression of snoRNA is observed in tumoral processes such as breast cancer and multiple myeloma. However, we have not found any references to snoRNAs in oral squamous cell carcinomas (OSCC) in the literature at the time this article was written. MATERIAL AND METHODS We have analyzed snoRNA expression in frozen OSCC tissue samples and have compared them to healthy controls. RNA was extracted from a total of eight OSCC samples and eight control samples, measuring the differential expression of small RNAs with the Affymetrix® miRNA 4.1 Array Plate microarray platform. RESULTS Results were analyzed using the Transcriptome Analysis Console 3.0 (TAC) software. We obtained a total of 16 deregulated snoRNAs of which one was over expressed and 15 were under expressed. SnoRNAs expression was altered in OSCC and could serve as a diagnostic marker.
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Affiliation(s)
- Cintia Chamorro-Petronacci
- Oral Medicine, Oral Surgery and Implantology Unit, Faculty of Medicine and Dentistry, Instituto de Investigación Sanitaria de Santiago (IDIS), Santiago de Compostela, Spain
| | - Mario Perez-Sayáns
- Oral Medicine, Oral Surgery and Implantology Unit, Faculty of Medicine and Dentistry, Instituto de Investigación Sanitaria de Santiago (IDIS), Santiago de Compostela, Spain
| | - Maria Elena Padín-Iruegas
- Anatomy and Human Embryology, Functional Biology and Health Science Department, Vigo University, Vigo, Spain
| | - Xabier Marichalar-Mendia
- Faculty of Medicine and Dentistry, Stomatology Department, Universidad del Pais Vasco/Euskal Herriko Unibertsitatea, Bilbao, Spain
| | - Mercedes Gallas-Torreira
- Oral Medicine, Oral Surgery and Implantology Unit, Faculty of Medicine and Dentistry, Instituto de Investigación Sanitaria de Santiago (IDIS), Santiago de Compostela, Spain
| | - Abel García García
- Oral Medicine, Oral Surgery and Implantology Unit, Faculty of Medicine and Dentistry, Instituto de Investigación Sanitaria de Santiago (IDIS), Santiago de Compostela, Spain
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Pérez-Sayáns M, Martínez-Martín JM, Chamorro-Petronacci C, Gallas-Torreira M, Marichalar-Mendía X, García-García A. 20 years of alveolar distraction: A systematic review of the literature. Med Oral Patol Oral Cir Bucal 2018; 23:e742-e751. [PMID: 30341270 PMCID: PMC6261008 DOI: 10.4317/medoral.22645] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2018] [Accepted: 10/01/2018] [Indexed: 11/28/2022] Open
Abstract
Background The Vertical Alveolar Distraction Osteogenesis (VADO) technique is an excellent solution for bone and soft tissue neoformation in areas in which there has been significant bone atrophy that hinders normal rehabilitation using dental implants. The goal of this systematic review is to analyze the most relevant articles published on VADO in the literature over the past 20 years. Material and Methods The review was performed by using the keywords: “alveolar ridge”, “distraction ostegenesis” and “dental implant”. This search produced a total result of 240 articles. The clinical studies and cases reported in humans amounted to 113 articles, 18 articles referred to studies developed on animals and 33 review articles. The presentation of this systematic analysis follows the criteria described in the PRISMA declaration. Results 22 articles complied with the inclusion criteria and 7 articles more were added manually, reaching a total sample of 29 studies. Following the analysis of the studies, they were classified into 18 high-quality, 10 mediumquality and 1 low-quality study. Only 4 studies achieved a maximum score of 9 (according to NewCastle Ottawa Scale, NOS). Conclusions VADO is a technique with greater potential in vertical gain. The performance of dental implants has a success and survival rate similar to dental implants placed on bones that are not subject to increase techniques. Key words:Vertical distraction osteogenesis, alveolar ridge, distraction osteogenesis, dental implant.
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Affiliation(s)
- M Pérez-Sayáns
- Facultad de Odontología, Santiago de Compostela, Entrerríos s/n, Santiago de Compostela, C.P. 15782, Spain,
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Gandara-Vila P, Perez-Sayans M, Suarez-Penaranda JM, Gallas-Torreira M, Somoza-Martin J, Reboiras-Lopez MD, Blanco-Carrion A, Garcia-Garcia A. Survival study of leukoplakia malignant transformation in a region of northern Spain. Med Oral Patol Oral Cir Bucal 2018; 23:e413-e420. [PMID: 29924757 PMCID: PMC6051679 DOI: 10.4317/medoral.22326] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Accepted: 05/22/2018] [Indexed: 11/26/2022] Open
Abstract
Background Oral leukoplakia is the most common potentially malignant disorder (PMD) of the oral cavity. The objectives of this study are to determine the clinicopathologic features in a group of patients with oral leukoplakia of Northern Spain (Galicia), determining the factors associated to clinical risk and analyzing the malignant transformation of these patients. Material and Methods We included 85 patients. We recorded sex and age, habits like alcohol and tobacco, size, clinical appearance, site, number of lesions, and presence or absence of dysplasia. We assess the association between risk factors and transformation and developed a logistic regression analysis. Finally we used the Kaplan-Meier and log-rank test for the survival analysis. Results 7 patients (8.2%) had malignant transformation. The mean follow-up of the patients was 4.13 years versus 5.58 years of those who developed carcinoma. Only location and initial dysplasia have a statistically significant relationship with malignant transformation, but when applied the long rank test only the presence of dysplasia remains statistically significant(P<0,026). Oral Cancer Free Survival was 81.9% (0.150) at 11 years for the group without dysplasia. Conclusions We found that the presence of dysplasia is the only risk factor that is statistically related to the development of a carcinoma. Key words:Leukoplakia, oral cancer and oral precancer, follow-up, malignant transformation.
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Affiliation(s)
- P Gandara-Vila
- Oral Medicine, Oral Surgery and Implantology Unit, Faculty of Medicine and Dentistry, Entrerrios s/n, Santiago de Compostela C.P. 15705,
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Pérez-Sayáns M, Suárez-Peñaranda JM, Aguirre-Urízar JM, Rodríguez-Tojo MJ, Barros-Angueira F, Gallas-Torreira M, García-García A. The use of tissue microarrays for semiquantitative evaluation of ATPaseC1 expression is ineffective. Biotech Histochem 2015; 90:439-44. [PMID: 25901422 DOI: 10.3109/10520295.2015.1023357] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
We described earlier the possible role of ATPaseC1 expression as a diagnostic and prognostic marker for oral cancer; others have reported its use for tumors of the lung and breast. We assessed ATPaseC1 expression in a sample of oral squamous cell carcinoma (OSCC) using tissue microarrays (TMAs) to analyze the relation between ATPaseC1 expression and clinical, histopathological and prognostic parameters. We performed a retrospective study of 48 cases of OSCC. We constructed TMAs using two different regions of each tumor. V-ATPaseC1 immunohistochemistry was performed and assessed semiquantitatively. ATPaseC1 staining was observed in most of the neoplastic cells in all tumors. Staining was diffusely cytoplasmic and, to a lesser extent, nuclear. The degree of concordance between the measurements performed in tissue microarray 1 (TMA1) and tissue microarray 2 (TMA2), as evaluated using the intra-class correlation coefficient (ICC), was low. We found great variability in the immunohistochemical staining of the different regions of each tumor. We found 16 cases with mild expression (33.3%), 20 with moderate expression (41.7%) and 12 with intense expression (25%). Differences in the clinical-pathological variables studied were not statistically significant. The difficulty of immunohistochemical evaluation, the heterogeneity of the carcinomas and the fact that evaluation of expression requires semiquantitative analysis render the reliability of the results obtained from TMA-based techniques questionable.
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Affiliation(s)
- M Pérez-Sayáns
- Oral Medicine, Oral Surgery and Implantology Unit, Faculty of Medicine and Dentistry, Institute of Sanitary Research of Santiago (IDIS) , Santiago de Compostela , Spain
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Pérez-Sayáns M, Suárez-Peñaranda JM, Torres-López M, Supuran CT, Gándara-Vila P, Gayoso-Diz P, Barros-Angueira F, Gallas-Torreira M, García-García A. The use of CA-IX as a diagnostic method for oral leukoplakia. Biotech Histochem 2014; 90:124-31. [PMID: 25297562 DOI: 10.3109/10520295.2014.965276] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The presence and degree of dysplasia are important diagnostic and prognostic criteria for oral leukoplakia, but evaluation of dysplasia is difficult and subjective. Carbonic anhydrase-IX (CA-IX) is expressed primarily in tumor cells and is considered a specific hypoxia marker. We investigated the role of CA-IX in oral leukoplakia. We investigated 30 specimens of oral leukoplakia and 35 dysplasia specimens adjacent to the tumor margin. We analyzed clinical variables including age, sex, degree of dysplasia, and smoking, clinical appearance of leukoplakia, number of lesions, location, size, clinical monitoring, malignant transformation and recurrence. For the immunohistochemical study, we used a noncommercial monoclonal antibody against human CA-IX MAb M75. We found greater CA-IX positivity in nonsmokers, erythroplakia and mottled leukoplakia, those located on the tongue, patients with multiple lesions, 2-4 cm leukoplakias and in recurrent cases, although differences were not statistically significant. All lesions in all samples without dysplasia were negative for CA-IX; however, for all other categories of dysplasia, the percentages of positivity and negativity varied. Regarding the diagnostic index values, we found a sensitivity of 32%, specificity of 100%, a positive predictive value of 100% and a negative predictive value of 13%. Leukoplakias appear mainly in females and potentially are malignant; more than 90% have some degree of dysplasia, and therefore require close clinical and histopathological monitoring. The CA-IX immunohistochemical marker may be useful for screening samples without dysplasia owing to its high specificity.
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Affiliation(s)
- M Pérez-Sayáns
- Oral Medicine, Oral Surgery and Implantology Unit, Faculty of Medicine and Dentistry, Institute of Sanitary Research of Santiago , Entrerrios s/n, Santiago de Compostela C.P. 15782 , Spain
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Inocêncio Faria A, Gallas-Torreira M, López-Ratón M, Crespo-Vázquez E, Rodríguez-Núñez I, López-Castro G. Radiological infrabony defects after impacted mandibular third molar extractions in young adults. J Oral Maxillofac Surg 2013; 71:2020-8. [PMID: 24071377 DOI: 10.1016/j.joms.2013.07.029] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2012] [Revised: 05/29/2013] [Accepted: 07/22/2013] [Indexed: 10/26/2022]
Abstract
PURPOSE To estimate the prevalence of infrabony defects and their healing at the distal aspect of mandibular second molars (M2s) after extraction of impacted mandibular third molars (M3s). MATERIALS AND METHODS This prospective clinical study included 22 young healthy patients (21.03 ± 4.51 yr old). Thirty-seven surgical extractions of high-risk periodontal and mesioangular impacted M3s in close contact with adjacent M2s were performed. Radiographic bone height (RBH), radiographic infrabony defects (RIDs), and bone loss (BL) were recorded at baseline and 3, 6, and 12 months after surgery. RBH and RIDs were measured from the tip of a periodontal gauge to the root apex and to the cementoenamel junction of the M2, respectively; BL was calculated by dividing the length of the M2 root into thirds and categorized as slight, moderate, or severe. RESULTS Only 26 extracted teeth were included in all radiographic assessments. Mean RID size at baseline was 4.54 ± 1.87 mm. At 12 months, an average recovery of 2.80 ± 2.36 mm (P < .001) was recorded, for a mean RID size of 1.78 ± 1.65 mm. Statistically significant differences in RBH and RIDs were found at all assessments (P < .05). Improved bone healing was registered during the postoperative period, with higher values during the first 3 months (1.3 mm; P < .01). Most RIDs of at least 4 mm associated with moderate or slight BL decreased to no larger than 3 mm without BL. For moderate BL, the bone gain pattern was gradual and continuous, whereas for slight BL, the pattern was variable. CONCLUSIONS In young healthy patients, a high-risk periodontal impacted M3 leads to an RID of at least 4 mm associated with slight or moderate BL at the distal aspect of the M2, which decreases to no larger than 3 mm 12 months after surgery. Bone healing is clinically and statistically significant at 12 months, with the most notable changes at the first 3-month follow-up.
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Affiliation(s)
- Ana Inocêncio Faria
- PhD Student, Department of Stomatology, Faculty of Medicine and Dentistry, University of Santiago de Compostela, A Coruña, Spain
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