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Jafari A, Vatanpour M, Barikrow N, Razavi P, Tour Savadkouhi S. Effect of erbium yttrium aluminium garnet laser dentin conditioning on dental pulp stem cells viability. Heliyon 2024; 10:e26954. [PMID: 38449629 PMCID: PMC10915375 DOI: 10.1016/j.heliyon.2024.e26954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 02/19/2024] [Accepted: 02/21/2024] [Indexed: 03/08/2024] Open
Abstract
Objective This study aims to investigate the effect of dentin conditioning by subablative Er:YAG (erbium-doped yttrium aluminium garnet) laser on dental pulp stem cells (DPSCs) viability. Methods For this in-vitro experimental study, root fragments were longitudinally hemisected after decoronation of single-rooted extracted teeth and preparation of root canals. Prepared samples were randomly assigned to 2 experimental groups (n = 17) as follows; 1) laser conditioning: irradiation with Er:YAG laser beams (2940 nm, 50 mJ per pulse, 20 Hz) 2) Chemical conditioning: 1.5% NaOCl, followed by phosphate-buffered saline (PBS), 17% EDTA, followed by PBS as a final rinse. The samples were ultraviolet-sterilized, and DPSCs were seeded on the samples. MTT assay was performed after 1, 4 and 7 days of incubation to assess the cell viability (n = 5/group per day). Also, after 7 days, two samples of each group underwent SEM (scanning electron microscope) analysis. Statistical analysis was done using independent t-test, one-way ANOVA and two-way ANOVA at a significance level of 0.05. Results Laser irradiated samples exhibited significantly higher cell viability of DPSCs on days 4 (p < 0.0001) and 7 (p < 0.0001), unlike day 1 (p = 0.131). SEM photomicrographs revealed that Er:YAG laser performed much better smear layer removal and created surface irregularities. Several different cell morphologies were observable on the laser-treated samples, which cells with cytoplasmic extensions being the most frequent. Conclusions Dentin conditioning by Er:YAG laser enhances DPSCs viability and can be a valuable modality for conditioning dentin to perform regenerative endodontic procedures. Further clinical studies are suggested.
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Affiliation(s)
- Aryan Jafari
- Dental School, Islamic Azad University of Medical Sciences, Tehran, Iran
| | - Mehdi Vatanpour
- Endodontic Department, Dental School, Islamic Azad University of Medical Sciences, Tehran, Iran
| | - Nooshin Barikrow
- Department of Molecular and Cellular Sciences, Faculty of Advanced Sciences & Technology, Tehran Medical Sciences Branch, Islamic Azad University, Tehran, Iran
| | - Pouyan Razavi
- Dental School, Islamic Azad University of Medical Sciences, Tehran, Iran
| | - Sohrab Tour Savadkouhi
- Dental Material Research Center, Dental School, Islamic Azad University of Medical Sciences, Tehran, Iran
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2
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Ramirez I, Bertolini GR, Candemil AP, Sousa-Neto MD, Souza-Gabriel AE. Chemical and morphological analysis of dentin irradiated by different high-power lasers: a systematic review. Lasers Med Sci 2023; 38:255. [PMID: 37932490 DOI: 10.1007/s10103-023-03912-0] [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: 06/20/2023] [Accepted: 10/12/2023] [Indexed: 11/08/2023]
Abstract
PURPOSE This systematic review provides an overview of the main chemical and morphological alterations generated on dentin by different high-power lasers' irradiation. METHODS The review was registered in PROSPERO (CRD42023394164) and PRISMA guidelines were followed. The search strategy was conducted on MEDLINE (PubMed), Embase (Elsevier), and Web of Science (Clarivate) databases. The eligibility criteria were established according to the PICOS strategy, focusing on in vitro and ex vivo studies that assessed the chemical and morphological changes in dentin using five high-power lasers: Nd:YAG (1064 nm), Er:YAG (2940 nm), Er, Cr:YSGG (2780 nm), diode (980 nm), and CO2 (10,600 nm). Publication range was from 2010 to 2022. Data was summarized in tables and risk of bias was assessed by QUIN tool. RESULTS The search resulted in 2255 matches and 57 studies composed the sample. The methods most used to assess the outcomes were scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS), and Raman. The studies presented "medium" and "low" risk of bias. The laser prevalently identified was the Er:YAG laser, associated with dentin ablation, absence of smear layer, and exposed tubules. The Nd:YAG laser generated vitreous surface and thermal damage, such as carbonization and cracks. The other lasers caused an irregular surface and no adverse thermal effects. Regarding the chemical structure, only the Er,Cr:YSGG laser caused collagen matrix reduction. The effects found were more intense with higher dosimetry. CONCLUSION Evidence available indicates that the irradiation of dentin with high-power lasers are related to morphological outcomes favorable to adhesive restorative procedures, with minimal changes in collagen matrix and mineral content. However, those observations should be carried carefully by clinicians and more clinical trials regarding the association of high-power laser irradiation and restorative procedure longevity are needed.
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Affiliation(s)
- Iago Ramirez
- Department of Restorative Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo (USP), Avenida do Café, s/n - USP's campus, Ribeirão Preto, SP, 14040-904, Brazil
| | - Gunther R Bertolini
- Department of Restorative Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo (USP), Avenida do Café, s/n - USP's campus, Ribeirão Preto, SP, 14040-904, Brazil
| | - Amanda P Candemil
- Department of Restorative Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo (USP), Avenida do Café, s/n - USP's campus, Ribeirão Preto, SP, 14040-904, Brazil
| | - Manoel D Sousa-Neto
- Department of Restorative Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo (USP), Avenida do Café, s/n - USP's campus, Ribeirão Preto, SP, 14040-904, Brazil
| | - Aline E Souza-Gabriel
- Department of Restorative Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo (USP), Avenida do Café, s/n - USP's campus, Ribeirão Preto, SP, 14040-904, Brazil.
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Tan KS. Erbium-doped yttrium aluminum garnet laser and advanced platelet-rich fibrin+ in periodontal diseases: Two case reports and review of the literature. World J Clin Cases 2022; 10:12337-12344. [PMID: 36483816 PMCID: PMC9724513 DOI: 10.12998/wjcc.v10.i33.12337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 10/05/2022] [Accepted: 10/26/2022] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND The goal of periodontal disease treatment is to completely remove bacteria and promote wound healing. The erbium-doped yttrium aluminum garnet (Er:YAG) laser is commonly used to treat periodontal disease. Advanced platelet-rich fibrin+ (A-PRF+) secrets growth factors that accelerates soft- and hard-tissue regeneration and wound healing. Herein I present 2 cases of patients with oral diseases treated with a combination of Er:YAG laser and A-PRF+.
CASE SUMMARY Case 1 was a female with pocket depth bone loss over 8 mm and infection of tooth 31 and 41, and severe advanced periodontitis with grade III mobility. Case 2 was a male with tooth 22 root end apical swelling and infection and alveolar bony defects. Clinical outcomes were recorded at 6 and 36 mo. In case 1, the Er:YAG laser was used to perform open flap debridement (100 mJ/pulse, 15 Hz) and remove calculus and granulation tissue (50 mJ/pulse, 30 Hz). In case 2 the laser was used to create a semilunar full thickness flap incision (80 mJ/pulse, 20 Hz) and eliminate the pathogen (100 mJ/pulse, 15 Hz). In both patients, A-PRF+ mixed with bone was used to fill bone defects, and A-PRF+ autologous membranes were used to cover tension-free primary flaps. There was no recurrent infection at 36 mo, and tissue regeneration and would healing occurred.
CONCLUSION Debridement with an Er:YAG laser followed by treatment with A-PRF+ is effective for the treatment periodontal diseases with bone defects.
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Affiliation(s)
- Kai-Seng Tan
- Dentistry, Ritz Digital Dental Clinic, New Taipei 238, Taiwan
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4
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Gurpegui Abud D, Shariff JA, Linden E, Kang PY. Erbium-doped: yttrium-aluminum-garnet (Er:YAG) versus scaling and root planing for the treatment of periodontal disease: A single-blinded split-mouth randomized clinical trial. J Periodontol 2021; 93:493-503. [PMID: 34286867 DOI: 10.1002/jper.21-0133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 07/10/2021] [Accepted: 07/10/2021] [Indexed: 11/06/2022]
Abstract
BACKGROUND This randomized, controlled clinical trial aimed to compare the differences in periodontal clinical outcomes, duration of the procedure, and patient's experience between conventional scaling and root planing and erbium-doped: yttrium-aluminum-garnet (Er:YAG) in the treatment of generalized moderate to severe chronic periodontitis or generalized Stages II or III, and Grade B periodontitis based on the Centers for Disease Control (CDC), American Academy of Periodontology (AAP), and European Federation of Periodontology (EFP) definitions. METHODS Thirty subjects were initially recruited. In a split-mouth fashion, right and left sides were randomly allocated into two treatment arms: conventional scaling and root planing (C-SRP) versus laser-assisted scaling and root planing (L-SRP). A blinded examiner recorded clinical measurements at baseline and 3 months. Duration of the procedure was also recorded for each visit, and the patient's experience was assessed with a questionnaire at baseline, 1, and 3 months. RESULTS The final sample consisted of 26 subjects. Both treatments resulted in overall improvement, but no significant differences were found between modalities for clinical attachment gain or probing depth reduction. The duration of the procedure was approximately half for L-SRP, and postoperative sensitivity was greater in C-SRP. CONCLUSIONS The low-energy protocol with Er:YAG (50 mJ) used for the non-surgical treatment of moderate-severe chronic or Stage II-III, Grade B periodontitis performed in this study population was a treatment modality that yielded similar clinical improvements when compared to conventional scaling and root planing.
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Affiliation(s)
- Daniela Gurpegui Abud
- Division of Periodontics, Section of Oral, Diagnostic and Rehabilitation Sciences, Columbia University College of Dental Medicine, New York, New York.,Periodontics, Touro College of Dental Medicine at New York Medical College, Hawthorne, New York
| | - Jaffer A Shariff
- Division of Periodontics, Section of Oral, Diagnostic and Rehabilitation Sciences, Columbia University College of Dental Medicine, New York, New York.,Periodontics, Touro College of Dental Medicine at New York Medical College, Hawthorne, New York
| | - Eric Linden
- Division of Periodontics, Section of Oral, Diagnostic and Rehabilitation Sciences, Columbia University College of Dental Medicine, New York, New York
| | - Philip Y Kang
- Division of Periodontics, Section of Oral, Diagnostic and Rehabilitation Sciences, Columbia University College of Dental Medicine, New York, New York
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Srisuwan T, Srisathian A. Improvement of apical papilla cell attachment after erbium, chromium-doped yttrium, scandium, gallium, and garnet laser application: a study in an ex vivo immature tooth model. Lasers Med Sci 2021; 37:1167-1174. [PMID: 34227042 DOI: 10.1007/s10103-021-03368-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 06/28/2021] [Indexed: 10/20/2022]
Abstract
The purposes of this study were (1) to investigate the direct effect of an Er,Cr:YSGG laser on human apical papilla cell (APC) proliferation and mineralization and (2) to examine the effect of Er,Cr:YSGG laser, when applied to an ex vivo immature tooth model, on APC attachment. An Er,Cr:YSGG laser at various power outputs (0.1, 0.5, and 1 W) was used at different positions (2, 5, or 8 mm from the cells) to irradiate cultured APCs. APC proliferation and mineralization were assessed at various intervals. For the cell attachment evaluation, ex vivo tooth models containing dentin samples were irrigated with either EDTA or normal saline solution (NSS) and supplemented with laser activation. Fibronectin-positive-staining cells were counted and analyzed. The number of APCs was significantly greater when power outputs of 0.1 W and 0.5 W were used than when 1 W was used (P < 0.05). The close contact of laser application, at 2 and 5 mm, exerted a negative effect on cell proliferation at 24 and 48 h. The application at 8 mm did not show the deterioration effect. APC mineralization was reduced after laser irradiation, regardless of the power and the tip positioning, at 21 days. APC attachment in all laser-activated groups was significantly greater than in the groups without laser. The use of Er,Cr:YSGG laser significantly promoted APC attachment on the root canal dentin.
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Affiliation(s)
- Tanida Srisuwan
- Department of Restorative Dentistry and Periodontology, Faculty of Dentistry, Chiang Mai University, Suthep Road, Muang, 50200, Chiang Mai, Thailand.
| | - Apichaya Srisathian
- McCormick Hospital, 133 Kaew-nawarat Road, Muang, 50000, Chiang Mai, Thailand
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Balhaddad AA, Ayoub HM, Gregory RL. In-Vitro Model of Scardovia wiggsiae Biofilm Formation and Effect of Nicotine. Braz Dent J 2020; 31:471-476. [PMID: 33146329 DOI: 10.1590/0103-6440202003207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 07/08/2020] [Indexed: 11/22/2022] Open
Abstract
Recently, Scardovia wiggsiae has been reported to be strongly associated with caries formation. This study aimed to establish an in vitro model of S. wiggsiae biofilm and to investigate the effect of nicotine on S. wiggsiae colony-forming units (CFUs) growth. S. wiggsiae biofilm was grown overnight using brain-heart infusion (BHI) broth supplemented with 5 g of yeast extract/L (BHI-YE). The overnight culture was used as an inoculum to grow S. wiggsiae biofilm on standardized enamel and dentin samples. Samples were incubated with different nicotine concentrations (0, 0.5, 1, 2, 4, 8, 16 and 32 mg/mL) for 3 days. The dissociated biofilms were diluted, spiral plated on blood agar plates, and incubated for 24 h. CFUs/mL were quantified using an automated colony counter. A two-way ANOVA was used to compare the effect of different nicotine concentrations on S. wiggsiae CFUs. This study demonstrated that S. wiggsiae biofilm could be initiated and formed in vitro. Increased CFUs was observed through 0.5-4 mg/mL and 0.5-8 mg/mL of nicotine using enamel and dentin substrates, respectively. 16 and 32 mg/mL of nicotine were determined as the minimum inhibitory concentration (MIC) and the minimum bactericidal concentration (MBC), respectively. S. wiggsiae formed greater biofilm on enamel than dentin specimens in response to the nicotine stimulus. This study demonstrated the negative effect of smoking on increasing S. wiggsiae biofilm. Establishing S. wiggsiae biofilm in vitro may allow researchers in the future to have a better understanding of caries pathogenesis and bacterial interaction.
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Affiliation(s)
- Abdulrahman A Balhaddad
- Imam Abdulrahman Bin Faisal University, Department of Restorative Dental Sciences, College of Dentistry, Dammam, Saudi Arabia
| | - Hadeel M Ayoub
- King Saud University, Dental Health Department, College of Applied Medical Sciences, Riyadh, Saudi Arabia.,Indiana University, School of Dentistry, Department of Biomedical and Applied Sciences
| | - Richard L Gregory
- Indiana University, School of Dentistry, Department of Biomedical and Applied Sciences
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7
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Deniz Sungur D, Aksel H, Ozturk S, Yılmaz Z, Ulubayram K. Effect of dentine conditioning with phytic acid or etidronic acid on growth factor release, dental pulp stem cell migration and viability. Int Endod J 2019; 52:838-846. [DOI: 10.1111/iej.13066] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Accepted: 12/12/2018] [Indexed: 11/28/2022]
Affiliation(s)
- D. Deniz Sungur
- Department of Endodontics Hacettepe University Faculty of Dentistry Ankara Turkey
| | - H. Aksel
- Department of Endodontics Hacettepe University Faculty of Dentistry Ankara Turkey
- Department of Periodontics and Endodontics School of Dental Medicine University at Buffalo Buffalo NY USA
| | - S. Ozturk
- Bioengineering Department Gebze Technical University KocaeliTurkey
- Bioengineering Division Institute for Graduate Studies in Science and Engineering Hacettepe University AnkaraTurkey
| | - Z. Yılmaz
- Department of Endodontics Hacettepe University Faculty of Dentistry Ankara Turkey
| | - K. Ulubayram
- Bioengineering Division Institute for Graduate Studies in Science and Engineering Hacettepe University AnkaraTurkey
- Department of Basic Pharmaceutical Sciences Faculty of Pharmacy Hacettepe University Ankara Turkey
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8
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Liu J, Andrukhov O, Laky M, Nürnberger S, Moritz A, Lyu P, Rausch-Fan X. Behavior of human periodontal ligament cells on dentin surfaces ablated with an ultra-short pulsed laser. Sci Rep 2017; 7:12738. [PMID: 28986527 PMCID: PMC5630637 DOI: 10.1038/s41598-017-12871-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Accepted: 09/15/2017] [Indexed: 12/20/2022] Open
Abstract
This study aimed to evaluate the effects of an ultrashort pulsed laser (USPL) (1064 nm, 20 ps, 100 kHz) with different laser fluences (F, 4, 6, 8 J/cm2) and pulse overlaps (PO, 0, 50%) on human periodontal ligament cells (hPDLs) behavior. Dentin samples were ablated with USPL with different combinations of fluences and pulse overlaps; some samples were ablated with an Er:YAG laser (2940 nm, 150 µs, 100 mJ/pulse, 5 J/cm2) and some samples were ground with a carbide bur. Then hPDLs were grown on the samples after different treatments. Dentin morphology and cell adhesion were observed with SEM and gene expressions were measured by RT-PCR. The results showed dentin surfaces ablated with USPL when F = 4 J/cm2, PO = 0, and F = 6 J/cm2, PO = 0 were partially intact with obvious ridges and valleys and cells on these surfaces grew mostly along the valleys. USPL ablated surfaces in other groups were entirely ablated and cell cluster formation was observed. The RT-PCR results showed an upregulation of osteocalcin of cells grown on the dentin after some laser treatment. It can be concluded that USPL could improve the attachment and differentiation of hPDLs and thus potentially promote periodontal tissue regeneration.
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Affiliation(s)
- Jing Liu
- Center of Digital Dentistry, Peking University School and Hospital of Stomatology, Beijing, 100081, China.,Division of Conservative Dentistry and Periodontology, School of Dentistry, Medical University of Vienna, Vienna, Austria.,Department of Prosthodontics, Peking University School and Hospital of Stomatology, Beijing, 100081, China.,National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing, 100081, China.,Research Center of Engineering and Technology for Digital Dentistry, Ministry of Health, Beijing, 100081, China
| | - Oleh Andrukhov
- Division of Conservative Dentistry and Periodontology, School of Dentistry, Medical University of Vienna, Vienna, Austria
| | - Markus Laky
- Division of Conservative Dentistry and Periodontology, School of Dentistry, Medical University of Vienna, Vienna, Austria
| | - Sylvia Nürnberger
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Austrian Cluster for Tissue Regeneration, AUVA Research Center, Vienna, Austria
| | - Andreas Moritz
- Division of Conservative Dentistry and Periodontology, School of Dentistry, Medical University of Vienna, Vienna, Austria
| | - Peijun Lyu
- Center of Digital Dentistry, Peking University School and Hospital of Stomatology, Beijing, 100081, China. .,Department of Prosthodontics, Peking University School and Hospital of Stomatology, Beijing, 100081, China. .,National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing, 100081, China. .,Research Center of Engineering and Technology for Digital Dentistry, Ministry of Health, Beijing, 100081, China.
| | - Xiaohui Rausch-Fan
- Division of Conservative Dentistry and Periodontology, School of Dentistry, Medical University of Vienna, Vienna, Austria.
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9
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Aoki A, Mizutani K, Schwarz F, Sculean A, Yukna RA, Takasaki AA, Romanos GE, Taniguchi Y, Sasaki KM, Zeredo JL, Koshy G, Coluzzi DJ, White JM, Abiko Y, Ishikawa I, Izumi Y. Periodontal and peri-implant wound healing following laser therapy. Periodontol 2000 2017; 68:217-69. [PMID: 25867988 DOI: 10.1111/prd.12080] [Citation(s) in RCA: 195] [Impact Index Per Article: 27.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/07/2014] [Indexed: 12/18/2022]
Abstract
Laser irradiation has numerous favorable characteristics, such as ablation or vaporization, hemostasis, biostimulation (photobiomodulation) and microbial inhibition and destruction, which induce various beneficial therapeutic effects and biological responses. Therefore, the use of lasers is considered effective and suitable for treating a variety of inflammatory and infectious oral conditions. The CO2 , neodymium-doped yttrium-aluminium-garnet (Nd:YAG) and diode lasers have mainly been used for periodontal soft-tissue management. With development of the erbium-doped yttrium-aluminium-garnet (Er:YAG) and erbium, chromium-doped yttrium-scandium-gallium-garnet (Er,Cr:YSGG) lasers, which can be applied not only on soft tissues but also on dental hard tissues, the application of lasers dramatically expanded from periodontal soft-tissue management to hard-tissue treatment. Currently, various periodontal tissues (such as gingiva, tooth roots and bone tissue), as well as titanium implant surfaces, can be treated with lasers, and a variety of dental laser systems are being employed for the management of periodontal and peri-implant diseases. In periodontics, mechanical therapy has conventionally been the mainstream of treatment; however, complete bacterial eradication and/or optimal wound healing may not be necessarily achieved with conventional mechanical therapy alone. Consequently, in addition to chemotherapy consisting of antibiotics and anti-inflammatory agents, phototherapy using lasers and light-emitting diodes has been gradually integrated with mechanical therapy to enhance subsequent wound healing by achieving thorough debridement, decontamination and tissue stimulation. With increasing evidence of benefits, therapies with low- and high-level lasers play an important role in wound healing/tissue regeneration in the treatment of periodontal and peri-implant diseases. This article discusses the outcomes of laser therapy in soft-tissue management, periodontal nonsurgical and surgical treatment, osseous surgery and peri-implant treatment, focusing on postoperative wound healing of periodontal and peri-implant tissues, based on scientific evidence from currently available basic and clinical studies, as well as on case reports.
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10
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Mehl C, Kern M, Schütte AM, Kadem LF, Selhuber-Unkel C. Adhesion of living cells to abutment materials, dentin, and adhesive luting cement with different surface qualities. Dent Mater 2016; 32:1524-1535. [PMID: 27717514 DOI: 10.1016/j.dental.2016.09.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2016] [Revised: 08/10/2016] [Accepted: 09/03/2016] [Indexed: 01/06/2023]
Abstract
OBJECTIVE We tested the adhesion properties of living gingival fibroblasts on three different implant abutment materials, adhesive resin used to bond bi-partite abutments, and human dentin. METHODS Discs of lithium disilicate (LS), zirconium dioxide (Zr), adhesive resin cement (AR), titanium (Ti), and human dentin (HD) were fabricated with three different levels of surface roughness (rough, machined, and polished). Ra and Rz, water contact angle, and cell detachment forces were measured. Cell detachment force was measured for single cells using single-cell force spectroscopy. Data were statistically analyzed using parametric tests (ANOVA, MANOVA, Bonferroni post-hoc tests). RESULTS Surface roughness significantly influenced the water contact angle for all materials (P≤0.05). Overall, HD showed the lowest contact angle, followed by LS, Ti, Zr, and AR (P≤0.05). Comparison of cell detachment forces between materials with rough and machined surfaces revealed no significant differences (P>0.05), with the exception of Zr compared to HD with rough surfaces (P=0.006). For polished surfaces, HD showed the highest detachment force (P≤0.0001), followed by Ti, AR, and Zr, which did not significantly differ from each other (P>0.05) and LS; Ti/AR was significantly different from LS (P≤0.05). Except for HD, where polished surfaces exhibited the highest cell detachment force (P≤0.002), most machined surfaces showed higher cell detachment forces than polished or rough surfaces. SIGNIFICANCE Implant abutments should ideally be provided with a machined like surface roughness for best cell adhesion.
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Affiliation(s)
- Christian Mehl
- Department of Prosthodontics, Propaedeutics and Dental Materials, Christian-Albrechts University at Kiel, Arnold-Heller-Straße 16, 24105, Kiel, Germany.
| | - Matthias Kern
- Department of Prosthodontics, Propaedeutics and Dental Materials, Christian-Albrechts University at Kiel, Arnold-Heller-Straße 16, 24105, Kiel, Germany.
| | - Anna-Marie Schütte
- Department of Prosthodontics, Propaedeutics and Dental Materials, Christian-Albrechts University at Kiel, Arnold-Heller-Straße 16, 24105, Kiel, Germany.
| | - Laith F Kadem
- Institute for Materials Science, Biocompatible Nanomaterials, University of Kiel, Kaiserstraße 2, 24143 Kiel, Germany.
| | - Christine Selhuber-Unkel
- Institute for Materials Science, Biocompatible Nanomaterials, University of Kiel, Kaiserstraße 2, 24143 Kiel, Germany.
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11
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Alghilan MA, Windsor LJ, Palasuk J, Yassen GH. Attachment and proliferation of dental pulp stem cells on dentine treated with different regenerative endodontic protocols. Int Endod J 2016; 50:667-675. [DOI: 10.1111/iej.12669] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Accepted: 06/06/2016] [Indexed: 12/15/2022]
Affiliation(s)
- M. A. Alghilan
- Department of Biomedical and Applied Sciences; Indiana University School of Dentistry; Indianapolis IN USA
- Department of Restorative Dental Science; King Saud bin Abdulaziz University for Health Sciences; Riyadh Saudi Arabia
| | - L. J. Windsor
- Department of Biomedical and Applied Sciences; Indiana University School of Dentistry; Indianapolis IN USA
| | - J. Palasuk
- Department of Biomedical and Applied Sciences; Indiana University School of Dentistry; Indianapolis IN USA
| | - G. H. Yassen
- Department of Biomedical and Applied Sciences; Indiana University School of Dentistry; Indianapolis IN USA
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12
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Lavu V, Sundaram S, Sabarish R, Rao SR. Root Surface Bio-modification with Erbium Lasers- A Myth or a Reality?? Open Dent J 2015; 9:79-86. [PMID: 25713635 PMCID: PMC4333616 DOI: 10.2174/1874210601509010079] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Revised: 12/03/2014] [Accepted: 12/10/2014] [Indexed: 12/19/2022] Open
Abstract
The objective of this literature review was to critically review the evidence available in the literature regarding the expediency of erbium family of lasers for root bio modification as a part of periodontal therapy. The literature search was performed on the Pubmed using MeSH words such as "lasers/therapeutic use, scaling, dental calculus, tooth root/anatomy and histology, ultrasonic therapy". The studies were screened and were grouped as follows: those evaluating a) efficacy for calculus removal with the Erbium family of laser b) root surface changes following Er YAG and Er Cr YSGG application c) comparative studies of the Er YAG, Er Cr YSGG lasers versus conventional methods of root surface modification d) Bio compatibility of root surface following Erbium laser treatment e) Studies on the combined efficacy of laser root modification with conventional methods towards root surface bio-modification f) Studies on effectiveness of root surface bio-modification prior to root coverage procedures. In conclusion, the erbium family has a proven anti-bacterial action, predictable calculus removal, minimal root substance removal, and appears to favor cell attachment. The Erbium family of lasers appears to be a useful adjunct for the management of periodontal disease.
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Affiliation(s)
- Vamsi Lavu
- Department of Periodontics, Faculty of Dental Sciences, Sri Ramachandra University, Porur, Tamil Nadu, Chennai, India
| | - Subramoniam Sundaram
- Department of Periodontics, Faculty of Dental Sciences, Sri Ramachandra University, Porur, Tamil Nadu, Chennai, India
| | - Ram Sabarish
- Department of Periodontics, Faculty of Dental Sciences, Sri Ramachandra University, Porur, Tamil Nadu, Chennai, India
| | - Suresh Ranga Rao
- Department of Periodontics, Faculty of Dental Sciences, Sri Ramachandra University, Porur, Tamil Nadu, Chennai, India
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