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Janjua OS, Jeelani W, Khan MI, Qureshi SM, Shaikh MS, Zafar MS, Khurshid Z. Use of Optical Coherence Tomography in Dentistry. Int J Dent 2023; 2023:4179210. [PMID: 38111754 PMCID: PMC10727803 DOI: 10.1155/2023/4179210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 10/31/2023] [Accepted: 11/06/2023] [Indexed: 12/20/2023] Open
Abstract
Optical coherence tomography (OCT) is an optics-based imaging technique, which may be called an "optical biopsy." It can be used to acquire structural information about a tissue at a resolution comparable to histopathology. OCT is based on the principle of low-coherence interferometry where near-infrared (NIR) light is shown on a tissue sample and then cross-sectional images are obtained based on backscattered light and echo time delay. Two main types of OCT are characterized as time-domain OCT (TD-OCT) and Fourier-domain OCT (FD-OCT). The applications of OCT in dentistry can be broadly divided into two groups, i.e., assessment of pathologies and assessment of surfaces and interfaces. Lately, OCT has made its transition from experimental laboratories to mainstream clinical applications. Starting from the short-term training courses, clinicians working in specialities like oral pathology, oral medicine, and oral implantology may find it a useful tool for their practices. It is now clear that OCT will be considered a gold standard diagnostic tool for the detection and characterization of several conditions and lesions of the orofacial region. However, the next challenge will be to incorporate it into the undergraduate and postgraduate curriculum and train dental healthcare staff in the use of these devices.
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Affiliation(s)
- Omer Sefvan Janjua
- Department of Oral and Maxillofacial Surgery, PMC Dental Institute, Faisalabad Medical University, Faisalabad, Pakistan
| | - Waqar Jeelani
- Department of Orthodontics, College of Dentistry, Bakhtawar Amin Medical and Dental College, Multan, Pakistan
| | | | - Sana Mehmood Qureshi
- Department of Oral Pathology, PMC Dental Institute, Faisalabad Medical University, Faisalabad, Pakistan
| | - Muhammad Saad Shaikh
- Department of Oral Biology, Sindh Institute of Oral Health Sciences, Jinnah Sindh Medical University, Karachi 75510, Pakistan
| | - Muhammad Sohail Zafar
- Department of Restorative Dentistry, College of Dentistry, Taibah University, Al Madinah, Al Munawwarah, 41311, Saudi Arabia
- School of Dentistry, University of Jordan, Amman 11942, Jordan
- Department of Dental Materials, Islamic International Dental College, Riphah International University, Islamabad 44000, Pakistan
| | - Zohaib Khurshid
- Department of Prosthodontics and Dental Implantology, College of Dentistry, King Faisal University, Al-Ahsa 31982, Saudi Arabia
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Higashi M, Mine A, Matsumoto M, Yumitate M, Hagino R, Ban S, Yamanaka A, Miura J, Minamino T, Van Meerbeek B, Yatani H. Do resin core build-ups obtain the benefits of higher bonding ability from direct or indirect technique? J Prosthodont Res 2021; 65:565-572. [PMID: 34053974 DOI: 10.2186/jpr.jpr_d_20_00275] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
PURPOSE This study evaluated the effects of different materials (composite resin system including a photo-cure adhesive (DC) vs. resin cement system including a self-etching primer (PV)) and techniques (direct vs. indirect) for resin core build-up on the bonding performance to root canal dentin. METHODS The human teeth were decoronated and root canal preparation was performed. All specimens were randomly divided into four groups according to the combinations of the methods (Direct or Indirect) and the materials (DC: Clearfil DC Core, Kuraray Noritake Dental or PV: Panavia V5, Kuraray Noritake Dental). Micro-tensile bond strength (μTBS) and push-out tests were performed. Scanning electron microscope observations of the interface were also performed, and microcomputed tomography and optical coherence tomography were applied to evaluate the sealing ability. RESULTS The Indirect group had significantly higher μTBSs than the Direct group in the DC group (P = 0.0076). The PV group had significantly higher bond strengths than the DC group in both the Direct and Indirect groups (P < 0.001). The Direct/PV group demonstrated significantly higher push-out bond strength than the Direct/DC group (P < 0.001). In the Direct/PV group, the formation of resin tags was observed even on the apical side of the canal. Microleakage was more clearly observed in the DC group than in the PV group. CONCLUSIONS PV has a higher bonding ability to root canal dentin than DC. When using DC, the indirect technique exhibited a higher bonding ability than the direct technique.
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Affiliation(s)
- Mami Higashi
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Osaka
| | - Atsushi Mine
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Osaka
| | - Mariko Matsumoto
- Department of Restorative Dentistry, Hokkaido University Graduate School of Dental Medicine, Hokkaido.,BIOMAT & University Hospitals Leuven, Department of Oral Health Sciences, KU Leuven (University of Leuven), Leuven
| | - Masahiro Yumitate
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Osaka
| | - Ryosuke Hagino
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Osaka
| | - Shintaro Ban
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Osaka
| | - Azusa Yamanaka
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Osaka
| | - Jiro Miura
- Division for Interdisciplinary Dentistry, Osaka University Dental Hospital, Osaka
| | - Takuya Minamino
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Osaka
| | - Bart Van Meerbeek
- BIOMAT & University Hospitals Leuven, Department of Oral Health Sciences, KU Leuven (University of Leuven), Leuven
| | - Hirofumi Yatani
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Osaka
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Iwashita T, Mine A, Matsumoto M, Nakatani H, Higashi M, Kawaguchi-Uemura A, Kabetani T, Tajiri Y, Imai D, Hagino R, Miura J, Minamino T, Yatani H. Effects of three drying methods of post space dentin bonding used in a direct resin composite core build-up method. J Prosthodont Res 2018; 62:449-455. [PMID: 29910001 DOI: 10.1016/j.jpor.2018.04.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Revised: 04/20/2018] [Accepted: 04/26/2018] [Indexed: 10/14/2022]
Abstract
PURPOSE The purpose of this study was to evaluate drying methods for post space dentin bonding in a direct resin composite core build-up method. METHODS Experiment 1: Four root canal plastic models, having diameters of 1.0 or 1.8mm and parallel or tapered shapes, were prepared. After drying each post space using three drying methods (air drying, paper-point drying, or ethanol drying, which involves filling the space with 99.5 vol% ethanol followed by air drying), the residual liquid in the models was weighed. Experiment 2: Thirty endodontically treated single-root teeth were dried using the above-described drying methods and filled with dual-cure resin composite. The bonded specimens were sectioned into square beams of approximately 1mm2 for microtensile bond strength (μTBS) testing. Nine teeth were observed through transmission electron microscopy (TEM) and micro computed tomography (μCT). The weight of residual liquid and μTBS were analyzed using Scheffé multiple comparison. RESULTS Experiment 1: The results of air drying were significantly different from those of paper-point drying (p<0.001) and ethanol drying (p<0.001), and no significant difference was observed between paper-point drying and ethanol drying. Experiment 2: The μTBS significantly decreased in the order of ethanol drying, paper-point drying, and air drying (air drying/ethanol drying: p<0.001, air drying/paper-point drying: p=0.048, ethanol drying/paper-point drying: p=0.032). TEM and μCT observation revealed a sufficient dentin/adhesive interface in the ethanol drying group. CONCLUSIONS Ethanol drying was found to be more effective for post space dentin bonding, as compared with air drying and paper-point drying.
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Affiliation(s)
- Taichi Iwashita
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Suita, Japan
| | - Atsushi Mine
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Suita, Japan.
| | - Mariko Matsumoto
- Department of Restorative Dentistry, Hokkaido University Graduate School of Dental Medicine, Sapporo, Japan
| | - Hayaki Nakatani
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Suita, Japan
| | - Mami Higashi
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Suita, Japan
| | - Asuka Kawaguchi-Uemura
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Suita, Japan
| | - Tomoshige Kabetani
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Suita, Japan
| | - Yuko Tajiri
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Suita, Japan
| | - Dai Imai
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Suita, Japan
| | - Ryosuke Hagino
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Suita, Japan
| | - Jiro Miura
- Division for Interdisciplinary Dentistry, Osaka University Dental Hospital, Suita, Japan
| | - Takuya Minamino
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Suita, Japan
| | - Hirofumi Yatani
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Suita, Japan
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Ayse Gozde T, Metin S, Mubin U. Evaluation of adaptation of ceramic inlays using optical coherence tomography and replica technique. Braz Oral Res 2018; 32:e005. [PMID: 29412222 DOI: 10.1590/1807-3107bor-2018.vol32.0005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 12/15/2017] [Indexed: 11/21/2022] Open
Abstract
Optical coherence tomography (OCT) has generally been used as a nondestructive technique to evaluate integrities of composite restorations. We investigated marginal and internal adaptations of ceramic inlay restorations with OCT and compared them to results with the silicone replica technique. Round-shaped class I cavities were prepared on 16 human maxillary first premolar teeth. Ceramic inlays were fabricated. Silicone replicas from inlays were obtained and sectioned to measure marginal and internal adaptations with a stereomicroscope (Leica Dfc 295, Bensheim, Germany). Inlays were cemented on respective teeth. Marginal and internal adaptations were then measured with the OCT system (Thorlabs, New Jersey, USA) in 200- μm intervals. Replica and OCT measurements were compared with independent samples t-tests. A paired t-test was used to evaluate the marginal and internal adaptations of each group (p < 0.05). Marginal and internal adaptations were 100.97 ± 31.36 and 113.94 ± 39.75 μm, respectively, using the replica technique and 28.97 ± 17.86 and 97.87 ± 21.83 μm, respectively, using OCT. The differences between the techniques were significant (p = 0.00 and p = 0.01, respectively). On evaluation within the groups, internal adaptation values were found to be significantly higher than the marginal adaptation values for the replica technique (p = 0.00) and OCT (p = 0.00). Therefore, the replica and OCT techniques showed different results, with higher values of marginal and internal adaptation found with the replica technique. Marginal and internal adaptation values of ceramic inlays, whether measured by replica or OCT techniques, were within clinically acceptable limits.
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Affiliation(s)
- Turk Ayse Gozde
- Ege University, Faculty of Dentistry, Department of Prosthodontics, Izmir, Turkey
| | - Sabuncu Metin
- Dokuz Eylül University, Department of Electrical and Electronics Engineering, Izmir, Turkey
| | - Ulusoy Mubin
- Ege University, Faculty of Dentistry, Department of Prosthodontics, Izmir, Turkey
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Machoy M, Seeliger J, Szyszka-Sommerfeld L, Koprowski R, Gedrange T, Woźniak K. The Use of Optical Coherence Tomography in Dental Diagnostics: A State-of-the-Art Review. JOURNAL OF HEALTHCARE ENGINEERING 2017; 2017:7560645. [PMID: 29065642 PMCID: PMC5534297 DOI: 10.1155/2017/7560645] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Revised: 05/02/2017] [Accepted: 05/31/2017] [Indexed: 12/14/2022]
Abstract
Optical coherence tomography provides sections of tissues in a noncontact and noninvasive manner. The device measures the time delay and intensity of the light scattered or reflected from biological tissues, which results in tomographic imaging of their internal structure. This is achieved by scanning tissues at a resolution ranging from 1 to 15 μm. OCT enables real-time in situ imaging of tissues without the need for biopsy, histological procedures, or the use of X-rays, so it can be used in many fields of medicine. Its properties are not only particularly used in ophthalmology, in the diagnosis of all layers of the retina, but also increasingly in cardiology, gastroenterology, pulmonology, oncology, and dermatology. The basic properties of OCT, that is, noninvasiveness and low wattage of the used light, have also been appreciated in analytical technology by conservators, who use it to identify the quality and age of paintings, ceramics, or glass. Recently, the OCT technique of visualization is being tested in different fields of dentistry, which is depicted in the article.
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Affiliation(s)
- Monika Machoy
- Division of Orthodontics, Pomeranian Medical University in Szczecin, Ul. Powstańców Wlkp 72, 70-111 Szczecin, Poland
| | - Julia Seeliger
- Division of Orthodontics, Technical University Dresden, Fetscherstrasse 74, 01307 Dresden, Germany
| | - Liliana Szyszka-Sommerfeld
- Division of Orthodontics, Pomeranian Medical University in Szczecin, Ul. Powstańców Wlkp 72, 70-111 Szczecin, Poland
| | - Robert Koprowski
- Department of Biomedical Computer Systems, Faculty of Computer Science and Materials Science, Institute of Computer Science, University of Silesia, Ul. Będzińska 39, 41-200 Sosnowiec, Poland
| | - Tomasz Gedrange
- Division of Orthodontics, Technical University Dresden, Fetscherstrasse 74, 01307 Dresden, Germany
| | - Krzysztof Woźniak
- Division of Orthodontics, Pomeranian Medical University in Szczecin, Ul. Powstańców Wlkp 72, 70-111 Szczecin, Poland
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Minamino T, Mine A, Matsumoto M, Sugawa Y, Kabetani T, Higashi M, Kawaguchi A, Ohmi M, Awazu K, Yatani H. Nondestructive observation of teeth post core-space using optical coherence tomography: comparison with microcomputed tomography and live images. JOURNAL OF BIOMEDICAL OPTICS 2015; 20:107001. [PMID: 26440617 DOI: 10.1117/1.jbo.20.10.107001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Accepted: 09/15/2015] [Indexed: 06/05/2023]
Abstract
No previous reports have observed inside the root canal using both optical coherence tomography (OCT) and x-ray microcomputed tomography (μCT) for the same sample. The purpose of this study was to clarify both OCT and μCT image properties from observations of the same root canal after resin core build-up treatment. As OCT allows real-time observation of samples, gap formation may be able to be shown in real time. A dual-cure, one-step, self-etch adhesive system bonding agent, and dual-cure resin composite core material were used in root canals in accordance with instructions from the manufacturer. The resulting OCT images were superior for identifying gap formation at the interface, while μCT images were better to grasp the tooth form. Continuous tomographic images from real-time OCT observation allowed successful construction of a video of the resin core build-up procedure. After 10 to 12 s of light curing, a gap with a clear new signal occurred at the root-core material interface, proceeding from the coronal side (6 mm from the cemento-enamel junction) to the apical side of the root.
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Affiliation(s)
- Takuya Minamino
- Osaka University Graduate School of Dentistry, Department of Fixed Prosthodontics, 1-8 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Atsushi Mine
- Osaka University Graduate School of Dentistry, Department of Fixed Prosthodontics, 1-8 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Mariko Matsumoto
- Osaka University Graduate School of Dentistry, Department of Fixed Prosthodontics, 1-8 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Yoshihiko Sugawa
- Osaka University Graduate School of Medicine, Course of Health Science, 1-7 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Tomoshige Kabetani
- Osaka University Graduate School of Dentistry, Department of Fixed Prosthodontics, 1-8 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Mami Higashi
- Osaka University Graduate School of Dentistry, Department of Fixed Prosthodontics, 1-8 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Asuka Kawaguchi
- Osaka University Graduate School of Dentistry, Department of Fixed Prosthodontics, 1-8 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Masato Ohmi
- Osaka University Graduate School of Medicine, Course of Health Science, 1-7 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Kunio Awazu
- Osaka University Graduate School of Engineering, Medical Beam Physics Laboratory, 2-1-A14 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Hirofumi Yatani
- Osaka University Graduate School of Dentistry, Department of Fixed Prosthodontics, 1-8 Yamadaoka, Suita, Osaka 565-0871, Japan
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