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Carneiro VSM, de Melo EL, de Oliveira Mota CCB, da Silva EJ, da Silva AF, Deama NS, Miranda JM, da Rocha SIS, de Lima Pires C, Gomes ASL, de Martínez Gerbi MEM. Optical clearing agents based on metallic and dielectric nanoparticles for caries diagnostic by optical coherence tomography. Clin Oral Investig 2024; 28:72. [PMID: 38175293 DOI: 10.1007/s00784-023-05473-6] [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: 09/25/2023] [Accepted: 12/20/2023] [Indexed: 01/05/2024]
Abstract
OBJECTIVE This study aimed to assess the effect of titanium dioxide (TiO2) and silver (Ag) nanoparticles dispersed in glycerol or water, serving as optical clearing agents nanocolloids (OCAs-NC), for improving optical coherence tomography (OCT) images and highlighting incipient lesions in ex vivo human teeth. MATERIALS AND METHODS Twelve human teeth with incipient lesions were divided into seven groups according to the OCA-NC; they were subjected to G1 (air), G2 (glycerol), G3 (TiO2 0.1%), G4 (TiO2 0.01%), G5 (TiO2 0.001%), G6 (AgNO3 10%), and G7 (AgNO3 100%). The OCA-NC was applied to the occlusal surface, and two-dimensional images of the specimens were analyzed using OCT (930 nm central wavelength; 100 nm bandwidth; 5 mW output power; axial resolution of 7/5.3 μm in water and air, respectively; lateral resolution of 8 μm; and light penetration depth of 1.6 mm inside the sample). RESULTS The findings demonstrated that the utilization of OCAs-NC containing metallic or dielectric nanoparticles (AgNO3 and TiO2) led to improved differentiation between sound and demineralized enamel on occlusal surfaces. Additionally, it enhanced the depth of image penetration when analyzing this hard tissue with OCT. CLINICAL RELEVANCE In the current context of minimally invasive dentistry, the use of OCAs-NC in conjunction with OCT can provide clinicians with early diagnosis, allowing for the determination of less/more invasive therapies and consequently halting the disease before cavitation of dental tissues occurs.
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Affiliation(s)
| | | | - Claudia Cristina Brainer de Oliveira Mota
- Dental School of Pernambuco, Universidade de Pernambuco Campus Arcoverde, Arcoverde, PE, Brazil
- Dental School, Centro Universitário Tabosa de Almeida, Caruaru, PE, Brazil
| | - Evair Josino da Silva
- Graduate Program in Dentistry, Universidade Federal de Pernambuco, Recife, PE, Brazil
| | | | - Nathalia Seimi Deama
- Graduate Program in Dentistry, Universidade de Pernambuco (PPGO-UPE), Recife, Brazil
| | | | | | - Caio de Lima Pires
- Graduate Program in Dentistry, Universidade de Pernambuco (PPGO-UPE), Recife, Brazil
| | - Anderson Stevens Leonidas Gomes
- Graduate Program in Dentistry, Universidade Federal de Pernambuco, Recife, PE, Brazil
- Department of Physics, Universidade Federal de Pernambuco, Recife, PE, Brazil
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Gruda Y, Albrecht M, Buckova M, Haim D, Lauer G, Koch E, Joehrens K, Schnabel C, Golde J, Li J, McLaughlin RA, Walther J. Characteristics of Clinically Classified Oral Lichen Planus in Optical Coherence Tomography: A Descriptive Case-Series Study. Diagnostics (Basel) 2023; 13:2642. [PMID: 37627901 PMCID: PMC10453426 DOI: 10.3390/diagnostics13162642] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 07/17/2023] [Accepted: 07/20/2023] [Indexed: 08/27/2023] Open
Abstract
Malignant transformation of oral lichen planus (OLP) into oral squamous cell carcinoma is considered as one of the most serious complications of OLP. For the early detection of oral cancer in OLP follow-up, accurate localization of the OLP center is still difficult but often required for confirmatory biopsy with histopathological examination. Optical coherence tomography (OCT) offers the potential for more reliable biopsy sampling in the oral cavity as it is capable of non-invasively imaging the degenerated oral layer structure. In this case-series study with 15 patients, features of clinically classified forms of OLP in OCT cross-sections were registered and correlated with available histologic sections. Besides patients with reticular, atrophic, erosive and plaque-like OLP, two patients with leukoplakia were included for differentiation. The results show that OCT yields information about the epithelial surface, thickness and reflectivity, as well as the identifiability of the basement membrane and the vessel network, which could be used to complement the visual clinical appearance of OLP variants and allow a more accurate localization of the OLP center. This forms the basis for further studies on OCT-assisted non-invasive clinical classification of OLP, with the aim of enabling decision support for biopsy sampling in the future.
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Affiliation(s)
- Yuliia Gruda
- Carl Gustav Carus Faculty of Medicine, Department of Medical Physics and Biomedical Engineering, TU Dresden, Fetscherstraße 74, 01307 Dresden, Germany; (Y.G.); (M.A.); (C.S.); (J.G.)
| | - Marius Albrecht
- Carl Gustav Carus Faculty of Medicine, Department of Medical Physics and Biomedical Engineering, TU Dresden, Fetscherstraße 74, 01307 Dresden, Germany; (Y.G.); (M.A.); (C.S.); (J.G.)
- Carl Gustav Carus Faculty of Medicine, Institute of Pathology, TU Dresden, Fetscherstraße 74, 01307 Dresden, Germany;
| | - Michaela Buckova
- Carl Gustav Carus Faculty of Medicine, Clinic and Policlinic of Oral- and Maxillofacial Surgery, TU Dresden, Fetscherstraße 74, 01307 Dresden, Germany; (M.B.); (D.H.); (G.L.)
| | - Dominik Haim
- Carl Gustav Carus Faculty of Medicine, Clinic and Policlinic of Oral- and Maxillofacial Surgery, TU Dresden, Fetscherstraße 74, 01307 Dresden, Germany; (M.B.); (D.H.); (G.L.)
| | - Guenter Lauer
- Carl Gustav Carus Faculty of Medicine, Clinic and Policlinic of Oral- and Maxillofacial Surgery, TU Dresden, Fetscherstraße 74, 01307 Dresden, Germany; (M.B.); (D.H.); (G.L.)
| | - Edmund Koch
- Carl Gustav Carus Faculty of Medicine, Department of Anesthesiology and Intensive Care Medicine, Clinical Sensoring and Monitoring, TU Dresden, Fetscherstraße 74, 01307 Dresden, Germany;
| | - Korinna Joehrens
- Carl Gustav Carus Faculty of Medicine, Institute of Pathology, TU Dresden, Fetscherstraße 74, 01307 Dresden, Germany;
| | - Christian Schnabel
- Carl Gustav Carus Faculty of Medicine, Department of Medical Physics and Biomedical Engineering, TU Dresden, Fetscherstraße 74, 01307 Dresden, Germany; (Y.G.); (M.A.); (C.S.); (J.G.)
- Carl Gustav Carus Faculty of Medicine, Department of Anesthesiology and Intensive Care Medicine, Clinical Sensoring and Monitoring, TU Dresden, Fetscherstraße 74, 01307 Dresden, Germany;
| | - Jonas Golde
- Carl Gustav Carus Faculty of Medicine, Department of Medical Physics and Biomedical Engineering, TU Dresden, Fetscherstraße 74, 01307 Dresden, Germany; (Y.G.); (M.A.); (C.S.); (J.G.)
| | - Jiawen Li
- Faculty of Sciences, Engineering and Technology, The University of Adelaide, Adelaide 5005, Australia;
- Institute for Photonics and Advanced Sensing, The University of Adelaide, Adelaide 5005, Australia;
| | - Robert A. McLaughlin
- Institute for Photonics and Advanced Sensing, The University of Adelaide, Adelaide 5005, Australia;
- Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide 5005, Australia
| | - Julia Walther
- Carl Gustav Carus Faculty of Medicine, Department of Medical Physics and Biomedical Engineering, TU Dresden, Fetscherstraße 74, 01307 Dresden, Germany; (Y.G.); (M.A.); (C.S.); (J.G.)
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Gambino A, Martina E, Panzarella V, Ruggiero T, Haddad GE, Broccoletti R, Arduino PG. Potential use of optical coherence tomography in oral potentially malignant disorders: in-vivo case series study. BMC Oral Health 2023; 23:540. [PMID: 37542232 PMCID: PMC10403886 DOI: 10.1186/s12903-023-03263-w] [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: 04/25/2023] [Accepted: 07/28/2023] [Indexed: 08/06/2023] Open
Abstract
BACKGROUND Evidence confirms that the use of Optical Coherence Tomography (OCT) in oral medicine can be a reliable aid for the diagnosis and management of Oral Potentially Malignant Disorders (OPMDs). Several authors described the ability of this system to detect the structural changes of the epithelia involved by the OPMDs. The purpose of this case series is to provide a suggestion for interpretation of OCT images from different OPMDs, compared to OCT images of healthy tissues. METHODS A sample of 11 OPMDs patients was recruited and analyzed with OCT. The images obtained were then compared with an OCT repertoire image. In this work the reflectance degree was considered, together with the analysis of the increased/decreased thicknesses of the various layers. Keratin Layer (KL), Epithelial Layer (EP), Lamina Propria (LP), Basal Membrane (BM) assessment, for each lesion, was performed. RESULTS OCT measurements of KL, EP and LP layers, together with BM assessing, should aid the physicians to recognize and describe different oral lesions, relating them to the corresponding oral pathology. CONCLUSION More studies like this, on larger samples, are needed to validate the results and provide, in the future, a kind of manual that could guide clinicians to correctly interpret the OCT images in relation to the causing pathologies. TRIAL REGISTRATION The present trial has been registered with ISRCTN (#17,893,224).
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Affiliation(s)
- Alessio Gambino
- Department of Surgical Sciences, CIR Dental School, University of Turin, Via Nizzan.230, 10123, Turin, Italy.
| | - Eugenio Martina
- Department of Surgical Sciences, CIR Dental School, University of Turin, Via Nizzan.230, 10123, Turin, Italy
| | - Vera Panzarella
- Department of Surgical, Oncological and Oral Sciences, University of Palermo, Palermo, Italy
| | - Tiziana Ruggiero
- Department of Surgical Sciences, CIR Dental School, University of Turin, Via Nizzan.230, 10123, Turin, Italy
| | - Giorgia El Haddad
- Department of Surgical Sciences, CIR Dental School, University of Turin, Via Nizzan.230, 10123, Turin, Italy
| | - Roberto Broccoletti
- Department of Surgical Sciences, CIR Dental School, University of Turin, Via Nizzan.230, 10123, Turin, Italy
| | - Paolo G Arduino
- Department of Surgical Sciences, CIR Dental School, University of Turin, Via Nizzan.230, 10123, Turin, Italy
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