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Laser and Optical Technology in Dentistry
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Laser and Optical Technology in Dentistry

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Applied Dentistry and Oral Sciences".

Deadline for manuscript submissions: closed (30 September 2023) | Viewed by 7481

Special Issue Editors

Prof. Dr. Irene Shuping Zhao

E-Mail Website
Guest Editor
1. School of Dentistry, Shenzhen University Health Science Center, Shenzhen 518060, China
2. Faculty of Dentistry, University of Hong Kong, Hong Kong 999077, China
Interests: fluoride; dental caries; silver diamine fluoride; laser
Prof. Dr. Georgios E. Romanos

E-Mail Website
Guest Editor
Department of Periodontics and Endodontics, School of Dental Medicine, Stony Brook University, 106 Rockland Hall, Stony Brook, NY 11794-8700, USA
Interests: peri-implantitis; lasers; advances in material research; bone regeneration; materials; periodontal regeneration
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue provides a forum for the publication of papers on the technical, experimental, and clinical aspects of the use of dental lasers, including lasers in operative dentistry, cariology, periodontology, endodontics, implantology, prosthodontics, orthodontics, aesthetic dentistry, and oral surgery. In addition, this Special Issue will publish papers on the dental application of new lasers, basic laser–tissue interactions, photobiomodulation, photodynamic therapy, low-level laser therapy, photodiagnostics, and temporomandibular joint and muscle disorders and TMJ pain management.

Prof. Dr. Irene Shuping Zhao
Prof. Dr. Georgios E. Romanos
Guest Editors

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Published Papers (3 papers)

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Research

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11 pages, 4952 KiB  
Article
Interleukin-6 Expression of Osteogenic Cell Lines Grown on Laser-Treated and Hydroxyapatite-Coated Titanium Discs
by Ana Flávia Piquera Santos, Lara Cristina Cunha Cervantes, Roberta Okamoto, Antonio Carlos Guastaldi, Thallita Pereira Queiroz, Layla Panahipour, Reinhard Gruber and Francisley Ávila Souza
Appl. Sci. 2023, 13(23), 12646; https://doi.org/10.3390/app132312646 - 24 Nov 2023
Cited by 1 | Viewed by 1084
Abstract
The laser treatment and hydroxyapatite coating of dental implants are supposed to enhance osseointegration, but prior to preclinical testing, any negative impact on cell viability should be ruled out. This study aimed to evaluate the response of murine osteogenic cell lineage MC3T3-E1 and [...] Read more.
The laser treatment and hydroxyapatite coating of dental implants are supposed to enhance osseointegration, but prior to preclinical testing, any negative impact on cell viability should be ruled out. This study aimed to evaluate the response of murine osteogenic cell lineage MC3T3-E1 and the bone marrow-derived stromal cells ST2 to surface modifications of machined titanium discs, e.g., laser treatment without and with hydroxyapatite coating, as well as sandblasting followed by acid etching. Scanning electron microscopy and the contact angle measurements revealed that laser treatment caused a honeycomb surface and higher wettability compared to a machined or sandblasting acid-etched surface. Hydroxyapatite coating, however, not only reduced the viability of MC3T3-E1 and ST2 cells but also provoked the expression and release of interleukin-6. These findings suggest that the laser treatment of titanium supports its hydrophilicity, but adding hydroxyapatite can reduce cell viability and induce the concomitant release of inflammatory cytokines. Full article
(This article belongs to the Special Issue Laser and Optical Technology in Dentistry)
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13 pages, 2557 KiB  
Article
The Study of Tooth Erosion Tested by the Color Digital Holography (CDH) Detection System
by Haoxiang Li, Guangjun He, Qinghe Song, Haiting Xia, Zhiqiang Liu, Jing Liang and Ting Li
Appl. Sci. 2022, 12(17), 8613; https://doi.org/10.3390/app12178613 - 28 Aug 2022
Cited by 4 | Viewed by 1770
Abstract
This study presents a color digital holography (CDH) detection system that includes the optical path and a numerical calculation program to detect tooth erosion under different acid-etching conditions. Etched cattle enamel samples were pressurized within the elastic interval, and the CDH detection system [...] Read more.
This study presents a color digital holography (CDH) detection system that includes the optical path and a numerical calculation program to detect tooth erosion under different acid-etching conditions. Etched cattle enamel samples were pressurized within the elastic interval, and the CDH detection system was used to rebuild the three-dimensional deformation field of these samples. Young’s modulus of these samples was employed to evaluate the mechanical properties of enamels by statistical methods. The results show that Young’s modulus of enamel decreases with the increase in etching time, while it decreases slightly with the increase in the etching temperature, and the etching temperature has no effect on the non-etched enamels. Moreover, the detection process proves the CDH detection system has the advantages of high precision, full-field detection, and being non-destructive, fast, and stable. It is expected to have broad application potential for CDH detection systems in the detection of tooth erosion. Full article
(This article belongs to the Special Issue Laser and Optical Technology in Dentistry)
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Other

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9 pages, 4780 KiB  
Case Report
Revascularization of an Immature Permanent Tooth with Periapical Periodontitis Using Concentrated Growth Factor Assisted by Erbium Laser (2940 nm) Irrigation: A Case Report
by Lintong Yu, Yijie Zhou, Jiahui Li, Jing Cheng and Guangtai Song
Appl. Sci. 2022, 12(9), 4751; https://doi.org/10.3390/app12094751 - 9 May 2022
Cited by 3 | Viewed by 3614
Abstract
Revascularization has been incorporated into endodontic practice and become a viable treatment alternative for immature teeth with pulp necrosis. Thorough disinfection of the root canal is a key factor for successful revascularization. An erbium: yttrium–aluminium–garnet (Er: YAG) laser has been proved advantageous for [...] Read more.
Revascularization has been incorporated into endodontic practice and become a viable treatment alternative for immature teeth with pulp necrosis. Thorough disinfection of the root canal is a key factor for successful revascularization. An erbium: yttrium–aluminium–garnet (Er: YAG) laser has been proved advantageous for efficient root canal disinfection. This article reports one case of periapical periodontitis caused by a fractured occlusal tubercle. Revascularization assisted by Er: YAG laser irrigation was carried out with long-term follow up. During the process of treatment, we opened drainage to relieve the acute symptoms first. The necrotic pulp was removed, and then the root canal was rinsed with 0.5% sodium hypochlorite (NaOCl) solution assisted by Er: YAG laser irrigation, dried, and filled with a triple-antibiotic paste. After two weeks, the intracanal medication was removed, and 9 mL of whole vein blood was taken from the patient to prepare concentrated growth factor (CGF) after failing to induce enough blood into the canal system by over-instrumenting. The newly prepared CGF was transferred into the root canal. A 3 mm mineral trioxide aggregate (MTA) was placed directly on the thrombus of the CGF and then restored with glass-ionomer cement (GIC). The case was followed up for more than four years to record the clinical symptoms and imaging manifestations. Er: YAG irrigation is an efficient root canal disinfection protocol with the advantages of easy operation and minimal risk, which might be applicable to the revascularization of necrotic immature permanent teeth. Full article
(This article belongs to the Special Issue Laser and Optical Technology in Dentistry)
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