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Romanenko N, Tarasenko S, Davtyan A, Serezhnikova N, Djidjavadze S, Derevyankin A, Shchetinina E, Deryugin A, Burlak A. The features of the reparative regeneration of an oral mucosa wound created under the exposure of a laser at a wavelength of 445 nm (a pilot study). Lasers Med Sci 2024; 39:152. [PMID: 38849656 DOI: 10.1007/s10103-024-04105-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Accepted: 05/27/2024] [Indexed: 06/09/2024]
Abstract
In clinical practice, an innovative laser technology that provides contactless preparation of soft tissues with a wavelength of 445 nm has been introduced. This study aimed to investigate the morphological changes in the oral mucosa when exposed to laser radiation at a wavelength of 445 nm in the ablation mode.An experimental study was conducted to analyze the dynamics of reparative regeneration in the wound caused by that particular type of radiation, utilizing the procedure of lower lip frenuloplasty as an illustration. 48 sexually mature male laboratory rats were chosen as the research object. The procedure of preparing the oral vestibule was executed by employing a contactless laser beam with a wavelength of 445 nm and a power of 0.7 W in continuous mode (CW) and an uninitiated fiber.Histological examination showed that 25 min after the surgery, there were large areas of coagulation necrosis in the oral mucosa in the area affected by the blue laser. In 48 h, the area of necrosis decreased both in size and depth. By the 7th day after the surgery, the necrotic masses had grown into the connective tissue, while marginal regeneration of the epithelium was noted. By the 14th day, the wound surface was completely epithelialized, represented by fibrous scar tissue. Clinically, around the mandibular incisors, there was a wide area of attached keratinized gingiva.The findings of histological examination indicate a necrosis of coagulation type in the region of tissue ablation and also show the absence of phase II of the inflammatory response (the stage of exudation), which expedites the process of epithelialization of the oral mucosa wound.
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Affiliation(s)
- Natalia Romanenko
- Federal State Autonomous Educational Institution of Higher Education I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), Mozhaisky Val, 121059, Moscow, Russian Federation.
| | - Svetlana Tarasenko
- Federal State Autonomous Educational Institution of Higher Education I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), Mozhaisky Val, 121059, Moscow, Russian Federation
| | - Albert Davtyan
- Federal State Autonomous Educational Institution of Higher Education I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), Mozhaisky Val, 121059, Moscow, Russian Federation
| | - Natalia Serezhnikova
- Federal State Autonomous Educational Institution of Higher Education I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), Mozhaisky Val, 121059, Moscow, Russian Federation
| | - Sofiko Djidjavadze
- Federal State Autonomous Educational Institution of Higher Education I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), Mozhaisky Val, 121059, Moscow, Russian Federation
| | - Alexandre Derevyankin
- Federal State Autonomous Educational Institution of Higher Education I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), Mozhaisky Val, 121059, Moscow, Russian Federation
| | - Ekaterina Shchetinina
- Federal State Autonomous Educational Institution of Higher Education I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), Mozhaisky Val, 121059, Moscow, Russian Federation
| | - Anton Deryugin
- Federal State Autonomous Educational Institution of Higher Education I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), Mozhaisky Val, 121059, Moscow, Russian Federation
| | - Anastasiya Burlak
- Patrice Lumumba Peoples' Friendship University of Russia (RUDN University), Moscow, Russian Federation
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Giannelli M, Pinzani M, Lorenzini L, Fossi T, Bani D. Soft-Tissue Augmentation Around Dental Implants by a New Laser-Aided Pouch Roll Technique: Volumetric and Clinical Evaluation After 1 Year. J ORAL IMPLANTOL 2024; 50:153-159. [PMID: 38634530 DOI: 10.1563/aaid-joi-d-24-00013] [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: 12/07/2023] [Revised: 04/15/2024] [Accepted: 04/16/2024] [Indexed: 04/19/2024]
Abstract
The ultimate goal in implantology is to restore the whole tooth-gingival complex in a fashion that cannot be distinguished from the rest of the natural dentition. This study assesses the volumetric and clinical changes in vestibular gingival soft tissues, crucial for satisfactory engraftment and esthetic results, upon treatment with laser-aided pouch roll augmentation in second-stage surgery for dental implant uncovering. Twelve patients with mild ridge deficiencies in 16 edentulous sites, including distal elements, were enrolled and reevaluated for up to 1 year. Digital impressions, taken with an intraoral laser scanner and software, were analyzed before (day 0) and after (month 12) treatment. The digital STL files were superimposed to assess volumetric and linear dimensional variations in selected peri-implant regions of interest by 3D analysis software. Clinical periodontal parameters (probing depth [PD], bleeding on probing [BoP], plaque index [PI]) and subjective patient-reported outcomes were also evaluated. In all patients, the applied technique induced a substantial increase in the volume of the vestibular peri-implant gingiva at 12-month follow-up (range, 24%-69%, mean 40.4%) with respect to day 0. The gingival mucosa appeared normal at both inspection and evaluation of the periodontal parameters (PD 2.7 ± 1 mm; BoP 0.11 ± 0.2 seconds; PI 0.19 ± 0). Patients' satisfaction with perceived pain/discomfort and esthetic outcome was high. These findings indicate that laser-aided pouch roll flap is a safe, patient-liked procedure whose long-term effectiveness has been objectively demonstrated by volumetric and clinical assessment.
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Affiliation(s)
| | - Matteo Pinzani
- Odontostomatologic Laser Therapy Center, Florence, Italy
| | - Luca Lorenzini
- Odontostomatologic Laser Therapy Center, Florence, Italy
| | - Tiziana Fossi
- Odontostomatologic Laser Therapy Center, Florence, Italy
| | - Daniele Bani
- Department of Experimental & Clinical Medicine, Imaging Platform, University of Florence, Florence, Italy
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Bollen C, Hakobayan G, Jörgens M. One-piece versus two-piece ceramic dental implants. Br Dent J 2024; 236:383-387. [PMID: 38459309 PMCID: PMC10923691 DOI: 10.1038/s41415-024-7123-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 09/05/2023] [Accepted: 09/18/2023] [Indexed: 03/10/2024]
Abstract
In this narrative review, a structured comparison between one-piece and two-piece zirconia dental implants is highlighted. Ceramic dental implants have long ceased to be hype; on the contrary, they can offer a significant addition to the daily dental implant practice. Not only do their favourable aesthetics play a significant role, but their ability to work completely metal-free is of added value, particularly for patients with a proven allergy for Grade 5 titanium. Furthermore, the fact that peri-implantitis seems to appear only incidentally is an important supporting argument for their use as well. Whereas the original design of zirconia implants was formerly always of a one-piece/one-phase structure (the monobloc design), nowadays, two-piece/two-phase designs (the so-called hybrid concept) are also widely utilised to restore missing teeth. Both concepts have advantages and disadvantages, scientifically as well as clinically.For this paper, relevant articles from the recent scientific literature were selected from PubMed. The aim was to identify and summarise what has previously been published on one-piece versus two-piece ceramic implants. This article will compare the benefits and drawbacks of one-piece versus two-piece ceramic implants based on clinical- (design, different sizes, surgical protocol, prosthetics), scientific- (loading and eventual complications) and patient-related (costs and long-time perspectives) criteria.
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Affiliation(s)
- Curd Bollen
- Professor, Ulster University, College of Medicine and Dentistry, Birmingham, UK.
| | - Gagik Hakobayan
- Professor and Head of Department of Oral and Maxillofacial Surgery, Yerevan State Medical University after Mkhitar Heratsi, Yerevan, Armenia
| | - Martin Jörgens
- Professor, University of Sevilla, Spain; MUHAS University, Dar es Salaam, Tanzania
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Yue L, Huo HY, Yang W, Zhang YH. Clinical application of a positioning annular gingival cutter in minimally invasive stage II implant surgery. Technol Health Care 2024; 32:841-847. [PMID: 37545274 DOI: 10.3233/thc-230262] [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] [Indexed: 08/08/2023]
Abstract
BACKGROUND Dental implant restoration is an effective therapy for missing teeth and is widely used in clinical practice to provide more treatment options for patients. OBJECTIVE To explore the application of a positioning annular gingival cutter in minimally invasive stage II implant surgery and to evaluate its clinical effects. METHOD Stage II implant surgery using a positioning annular gingival cutter was performed on 15 selected patients at 15 implant sites with sufficient keratinized gingival width in the posterior region. The patient underwent crown restoration 2 weeks after surgery and returned for follow-up 3 months later. The surgical effects were recorded for each patient, including the duration of surgery, postoperative pain and swelling, keratinized gingiva width, probing depth (PD) measurements, and the percentage of bleeding on probing (BOP) before surgery, during crown restoration, and 3 months after crown restoration. The data were subjected to a paired sample t-test using Statistical Product and Service Solutions (SPSS) 25.0. RESULTS The duration of stage II implant surgery using a positioning annular gingival cutter was 9.23 ± 1.63 min, and the duration of postoperative pain and swelling was 0.73 ± 0.35 and 0.81 ± 0.35 d, respectively. The keratinized gingiva width was 2.93 ± 0.41 mm before surgery and 2.91 ± 0.46 mm after crown restoration, demonstrating no significant reduction (P> 0.05). The keratinized gingiva width remained stable 3 months after crown restoration, with an average of 2.85 ± 0.49 mm, without significant reduction (P> 0.05). No obvious inflammation is observed. PD was 2.60 ± 0.52 mm and BOP was 10%. CONCLUSION The use of a positioning annular gingival cutter in stage II implant surgery achieves a positive and stable clinical effect within a short time.
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Affiliation(s)
- Lei Yue
- Department of Oral and Maxillofacial Surgery, The Second Hospital of Hebei Medical University, Hebei, China
| | - Hai-Yang Huo
- Department of Medical Administration, The Second Hospital of Hebei Medical University, Hebei, China
| | - Wei Yang
- Department of Oral and Maxillofacial Surgery, The Second Hospital of Hebei Medical University, Hebei, China
| | - Ying-Huai Zhang
- Department of Oral and Maxillofacial Surgery, The Second Hospital of Hebei Medical University, Hebei, China
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Orozco J, Rico D, Barrios L, Hoyos V, Blanco P. Histological artifacts associated with laser and electroscalpel gingivectomy: Case series. BIOMEDICA : REVISTA DEL INSTITUTO NACIONAL DE SALUD 2023; 43:315-322. [PMID: 37871565 PMCID: PMC10617660 DOI: 10.7705/biomedica.6930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 08/23/2023] [Indexed: 10/25/2023]
Abstract
Introduction. Over time, efforts have been invested in the design of new instruments that overcome the disadvantages of the gold standard instrument in surgery, the scalpel. As a result, electronic equipment has emerged such as the electric scalpel and laser devices. The available evidence on these instruments suggests that the tissue response is related to each instrument’s physical and biological cutting principles. Objective. To compare the histological changes in gingiva samples associated with surgical cutting performed with a 940 nm diode laser, a 2780 nm erbium, chromium: yttriumscandium-gallium-garnet (Er,Cr:YSGG) laser, and an electric scalpel, by presenting a series of cases. Case presentation. We present three cases of healthy patients undergoing cosmetic surgery. The clinical examination revealed exposure of a keratinized gingiva band greater than 4 mm, normal color and texture in gingival tissue, with a firm consistency and no bleeding on periodontal probing. Gingivectomy was indicated with the following protocols: Diode laser of 940 nm at 1 W, in continuous mode; Er,Cr:YSGG laser of 2780 nm at 2.5 W, 75 Hz, H mode, air 20, water 40, gold tip MT4); and electric scalpel in cutting mode at power level four. Gingival tissue samples were taken and stored in 10% formaldehyde for histological analysis. Conclusion. All the evaluated cutting instruments generated histological changes produced by the thermal effect, the main ones being collagen coagulation and carbonization. The depth of thermal damage caused by the 2780 nm Er,Cr:YSGG laser was much lesser than that induced by the electric scalpel and the 940 nm diode laser.
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Affiliation(s)
- Jennifer Orozco
- Programa de Odontología, Corporación Universitaria Rafael Núñez, Cartagena, Colombia.
| | - David Rico
- Programa de Odontología, Corporación Universitaria Rafael Núñez, Cartagena, Colombia.
| | - Lía Barrios
- Grupo de Histopatología, Facultad de Medicina, Universidad de Cartagena, Cartagena, Colombia.
| | - Vivi Hoyos
- Programa de Odontología, Corporación Universitaria Rafael Núñez, Cartagena, Colombia.
| | - Pilar Blanco
- Medical Laser Latinoamérica, Santa Marta, Colombia.
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A Novel Concept of Combined High-Level-Laser Treatment and Transcutaneous Photobiomodulation Therapy Utilisation in Orthodontic Periodontal Interface Management. SENSORS 2022; 22:s22062263. [PMID: 35336433 PMCID: PMC8951072 DOI: 10.3390/s22062263] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Revised: 02/23/2022] [Accepted: 03/14/2022] [Indexed: 02/04/2023]
Abstract
This case report is aimed to demonstrate the synergetic effects of λ940 nm laser photobiomodulation (PBM) therapy in augmenting the advantages of high-level-laser treatment (HLLT)-mediated reaction orthodontic periodontal interface management. Materials and Methods: A 32-year-old female who presented with a persistent gummy smile of upper incisors and low upper midline frenum attachment post-orthodontic treatment, was seeking a better smile appearance. She had a history of delayed wound healing without underlying medical conditions; otherwise, she was fit and healthy. She underwent laser ablation of the upper midline frenum and gingivoplasty of the upper incisors region with λ940 nm and λ2780, respectively, as well as transcutaneous PBM therapy (λ940 nm) to accelerate wound healing. The laser protocols were as follows: λ2780 nm: power output—2 W, pulse width—60 μs, free running pulse (FRP), spot area—0.0016 cm2, pulse repetition rate—25 pulses per second (s), 80 mJ/pulse, 90 s, λ940 nm: 1.2 W, continuous wave (CW) emission mode, 300 μm, 60 s; whereas the adjunctive λ940 nm induced-PBM parameters were as follows: power output—1.4 W, CW—120 s, single application, spot area—2.8 cm2. An acceleration of the wound healing was observed on the 4th day of treatment with no immediate or post-operative complications. The results showed no functional or aesthetic relapses at a long-term follow-up of 6 months. The authors concluded that λ940 nm laser-PBM can provide a synergetic effect to HLLT in accelerating wound healing and offering a precision smile with minimal to none post-operative complications. It is safe and justifiable to utilise dual therapy over the conventional methods, which serves our patients’ needs in our daily practice and in various clinical indications. The concept and laser protocols of this clinical case report can pave the roadmap for future extensive studies.
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Tateno RY, Palma LF, Sendyk WR, Campos L. High-Power Diode Laser for Second-Stage Implant Surgery in an Anticoagulated Patient: A Clinical Case Letter. J ORAL IMPLANTOL 2021; 47:154-157. [PMID: 32663276 DOI: 10.1563/aaid-joi-d-20-00130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Ricardo Yudi Tateno
- Department of Post-Graduation in Implantology, School of Dentistry, University of Santo Amaro. São Paulo, SP, Brazil
| | - Luiz Felipe Palma
- Department of Morphology and Genetics, Federal University of São Paulo. São Paulo, SP, Brazil.,MSc Program, Ibirapuera University. São Paulo, SP, Brazil
| | - Wilson Roberto Sendyk
- Department of Post-Graduation in Implantology, School of Dentistry, University of Santo Amaro. São Paulo, SP, Brazil
| | - Luana Campos
- Department of Post-Graduation in Implantology, School of Dentistry, University of Santo Amaro. São Paulo, SP, Brazil.,Oral Medicine. Brazilian Institute of Cancer Control. São Paulo, SP, Brazil
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Hanke A, Fimmers R, Frentzen M, Meister J. Quantitative determination of cut efficiency during soft tissue surgery using diode lasers in the wavelength range between 400 and 1500 nm. Lasers Med Sci 2021; 36:1633-1647. [PMID: 33496905 PMCID: PMC8433103 DOI: 10.1007/s10103-020-03243-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 12/29/2020] [Indexed: 01/19/2023]
Abstract
Within the scope of this ex vivo study, the cut efficiency was investigated with eight diode laser wavelengths in the range from 400 to 1500 nm. Incisions on porcine gingiva samples were generated in CW-mode at a power range of 0.5–4 W using a bare fiber (∅ = 320 μm) in contact and non-contact mode at a cut speed of 2 mm/s. Cut depths, cut widths, and thermal damages were recorded based on histological sections and were evaluated via measurement masks. Moreover, with respect to the controllability of a therapeutic measure, an efficiency factor was defined. At powers above 2 W, for 445 nm, the maximum cut depth was 820 μm and 344 μm for 810 nm, respectively. At all wavelength and power ranges, the cut width averaged 125 μm. At minimum output power (0.5 W), the spatial expansion of the thermal damage in the tissue surface layer corresponds in the blue/green wavelength range from the very beginning of the laser impact to the fiber core diameter. It could be shown that increases in the diode laser power output do not correlate to the same extent with the incision depth nor with thermal damage to tissue.
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Affiliation(s)
- Amelie Hanke
- Department of Operative and Preventive Dentistry, Bonn University, Welschnonnenstrasse 17, 53111, Bonn, Germany
| | - Rolf Fimmers
- Institute for Medical Biometry, Informatics and Epidemiology (IMBIE), Bonn University, Sigmund-Freud-Strasse 25, 53105, Bonn, Germany
| | - Matthias Frentzen
- Department of Operative and Preventive Dentistry, Bonn University, Welschnonnenstrasse 17, 53111, Bonn, Germany
- Center of Dento-Maxillo-Facial Medicine, Bonn University, Welschnonnenstrasse 17, 53111, Bonn, Germany
| | - Jörg Meister
- Center of Dento-Maxillo-Facial Medicine, Bonn University, Welschnonnenstrasse 17, 53111, Bonn, Germany.
- Center of Applied Medical Laser Research and Biomedical Optics (AMLaReBO), Bonn University, Welschnonnenstrasse 17, 53111, Bonn, Germany.
- Laser Application in Medical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Velenjak Street, 19857-17443, Tehran, Iran.
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Insights on the Human Amniotic Membrane in Clinical Practice with a Focus on the New Applications in Retinal Surgery. REGENERATIVE ENGINEERING AND TRANSLATIONAL MEDICINE 2020. [DOI: 10.1007/s40883-020-00190-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Lay SummaryRecently, the use of the human amniotic membrane (hAM) has been extended to treat retinal disorders such as refractory macular holes, retinal breaks and dry and wet age-related macular degeneration. Not only the hAM has proved to be an excellent tool for repairing retinal tissue, but it has also shown a promising regeneration potential. This review aims to highlight the novel use of the hAM in treating retinal diseases. Although the hAM has been used in the ocular anterior segment reconstruction for more than 60 years, in the last 2 years, we have found in literature articles showing the use of the hAM in the retinal surgery field with interesting results in terms of tissue healing and photoreceptor regeneration.
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