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Guarnieri R, Reda R, Di Nardo D, Miccoli G, Pagnoni F, Zanza A, Testarelli L. Expression of IL-1β, IL-6, TNF-α, and a-MMP-8 in sites with healthy conditions and with periodontal and peri-implant diseases: A case-control study. J Dent Res Dent Clin Dent Prospects 2024; 18:135-142. [PMID: 39071212 PMCID: PMC11282203 DOI: 10.34172/joddd.40958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Accepted: 03/04/2024] [Indexed: 07/30/2024] Open
Abstract
Background This study evaluated the gingival crevicular fluid (GCF) and Peri- implant crevicular fluid (PICF) concentrations of interleukin-1 beta (IL-1β), interleukin-6 (IL-6), tumor necrosis factor-alpha (TNF-α) and active metalloproteinase-8 (a-MMP-8) in sites with healthy conditions vs. sites affected by periodontitis (PER) and peri-implantitis (PIM). Methods Periodontally healthy (PH) sites with PER, sites with peri-implant health (PIH), and sites with PIM were investigated intra-individually, according to the inclusion criteria of each group. Probing pocket depth (PPD), plaque index, gingival index, and the presence or absence of bleeding on probing (BoP) were evaluated. In GCF and PICF samples, IL-1β, IL-6, and TNF-α were quantified by ELISA Duoset® kit in combination with Ultramark® micro-ELISA digital reader; a-MMP8 concentration was analyzed by a chairside test (Perio/ImplantSafe®) in combination with a digital reader (ORALyzer®). Results The concentrations of IL-6 and IL-1β, TNF-α, and a-MMP-8 were significantly higher in the PIM and PER sites compared to healthy sites (P<0.05). Significantly higher concentrations of IL-1β and a-MMP-8 were found in PIM vs. PER sites (P<0.05), while the concentrations of IL-6 and TNF-α did not differ between the PIM and PER groups (P>0.05). Conclusion aMMP-8, IL-6, IL-1β, and TNF-α presented higher GCF/PICF concentrations in diseased periodontal and peri-implant sites. However, only the concentrations of IL-1β and a-MMP-8 were significantly higher in PIM than in PER sites.
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Affiliation(s)
- Renzo Guarnieri
- Private Practice, Treviso, Italy
- Department of Oral and Maxillofacial Sciences, Sapienza University of Rome, Rome, Italy
| | - Rodolfo Reda
- Department of Oral and Maxillofacial Sciences, Sapienza University of Rome, Rome, Italy
- Department of Prosthodontics and Implantology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Chennai, India
| | - Dario Di Nardo
- Department of Oral and Maxillofacial Sciences, Sapienza University of Rome, Rome, Italy
- Operative Research Unit of Dentistry, Policlinico Universitario Campus Bio-Medico Foundation, Via Alvaro del Portillo, Roma, Italy
| | - Gabriele Miccoli
- Department of Oral and Maxillofacial Sciences, Sapienza University of Rome, Rome, Italy
| | - Francesco Pagnoni
- Department of Oral and Maxillofacial Sciences, Sapienza University of Rome, Rome, Italy
| | - Alessio Zanza
- Department of Oral and Maxillofacial Sciences, Sapienza University of Rome, Rome, Italy
| | - Luca Testarelli
- Department of Oral and Maxillofacial Sciences, Sapienza University of Rome, Rome, Italy
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Li X, Al-Wesabi SN, Hu C, Wang L, Deng C, Li C, Man Y, Zhu G, Zhang G, Wu Y. Vascularized fascial flap for reconstruction of combined oral mucosa-mandibular defects: The multi-modal biological assessment. JOURNAL OF STOMATOLOGY, ORAL AND MAXILLOFACIAL SURGERY 2024; 125:101860. [PMID: 38565421 DOI: 10.1016/j.jormas.2024.101860] [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: 02/01/2024] [Accepted: 03/29/2024] [Indexed: 04/04/2024]
Abstract
OBJECTIVE The reconstruction of composite defects in the oral and maxillofacial region using vascularized fascial flaps, such as the fibular, iliac, and temporal fascial flaps, has gained increasing attention among surgeons. However, there remains uncertainty regarding the suitability of fascial flaps as transplants, as well as their healing processes and outcomes, due to their non-mucosal nature. This study aims to comprehensively assess the biological aspects of vascularized fascial flaps at clinical, histological, and genetic levels, with the goal of providing essential biological references for their clinical application. STUDY DESIGN This study enrolled three patients who underwent reconstruction of combined oral mucosa-mandibular defects using fibular vascularized fascial flaps between 2020 and 2023. Data regarding changes in the appearance of the fascial flaps, bulk-RNA sequencing, and histological slices of initial fascia, initial gingiva, and transformed fascia were collected and analyzed. RESULTS Within three months, the fascial flaps exhibited rapid epithelial coverage and displayed distinct characteristics resembling mucosa. High-throughput RNA sequencing analyses and histological slices revealed that the transformed fascia exhibited tissue structures similar to mucosa and demonstrated unique advantages in promoting blood vessel formation and reducing scarring through the high-level expression of relevant genes. CONCLUSION These findings emphasize the potential and feasibility of utilizing vascularized fascial flaps for oral mucosa reconstruction, establishing their unique advantage as transplant materials, and providing significant biological information and references for their selection and clinical application.
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Affiliation(s)
- Xinhui Li
- State Key Laboratory of Oral Diseases &National Clinical Research Center for Oral Diseases& Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China; Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China.
| | - Saddam Noman Al-Wesabi
- State Key Laboratory of Oral Diseases &National Clinical Research Center for Oral Diseases& Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China; Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China.
| | - Chen Hu
- State Key Laboratory of Oral Diseases &National Clinical Research Center for Oral Diseases& Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China; Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Lei Wang
- State Key Laboratory of Oral Diseases &National Clinical Research Center for Oral Diseases& Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China; Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Chen Deng
- State Key Laboratory of Oral Diseases &National Clinical Research Center for Oral Diseases& Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China; Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Chunjie Li
- State Key Laboratory of Oral Diseases &National Clinical Research Center for Oral Diseases& Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China; Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Yi Man
- State Key Laboratory of Oral Diseases &National Clinical Research Center for Oral Diseases& Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China; Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Guiquan Zhu
- State Key Laboratory of Oral Diseases &National Clinical Research Center for Oral Diseases& Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China; Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Gaowei Zhang
- State Key Laboratory of Oral Diseases &National Clinical Research Center for Oral Diseases& Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China; Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China.
| | - Yingying Wu
- State Key Laboratory of Oral Diseases &National Clinical Research Center for Oral Diseases& Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China; Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China.
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Di Domenico GL, Di Martino M, Arrigoni G, Aroca S, de Sanctis M. Multiple coronally advanced flap with a selective use of connective tissue graft: A 3-year prospective clinical and histological study. J Periodontol 2023; 94:1200-1209. [PMID: 37036093 DOI: 10.1002/jper.22-0632] [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: 10/24/2022] [Revised: 02/15/2023] [Accepted: 03/29/2023] [Indexed: 04/11/2023]
Abstract
BACKGROUND The purpose of the present study was to prospectively evaluate the 3-year changes in the gingival dimensions following multiple coronally advanced flap (MCAF) with selective use of connective tissue graft (CTG). In addition, the secondary aim was to histologically identify the factors related to phenotype changes. METHODS Twenty patients treated with MCAF and site-specific application of a CTG were available for the 3-year follow-up. Outcome measures included complete root coverage (CRC), recession reduction, keratinized tissue width (KTW), marginal tissue thickness changes, and primary flap position. Biopsies were harvested at one of the sites treated with the adjunct of CTG. All sections were stained with hematoxylin and eosin, Masson trichrome, Verhoeff-van Gieson, tenascin, and alcian blue stain for semiquantitative evaluation. RESULTS At 3 years, CRC was detected in 86% of sites treated with MCAF alone and 81% of sites treated with MCAF + CTG. The 47% of sites treated with MCAF + CTG presented an apical shift of primary flap from its original position. Linear regression showed a significant association between KTW change and the initial KTW in MCAF-treated sites, while both initial KTW and position of primary flap were statistically significantly associated factors with KTW changes in the MCAF + CTG group. In all the biopsies examined, there is always a marked and clear separation between the connective tissue of the gingival flap and the palatal connective tissue of the graft. CONCLUSIONS The selective use of CTG is an effective treatment for multiple gingival recessions. Only a limited increase in KTW can be expected in a bilaminar technique if, during the healing phases, the connective tissue is maintained completely covered.
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Affiliation(s)
| | - Maria Di Martino
- Department of Periodontology, Vita-Salute San Raffaele University, Milan, Italy
| | - Gianluigi Arrigoni
- Department of Pathology, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Sofia Aroca
- 26K Center for Clinical Research, Paris, France
- Department of Periodontology, Bern University, Bern, Switzerland
| | - Massimo de Sanctis
- Department of Periodontology, Vita-Salute San Raffaele University, Milan, Italy
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Gaggi G, Di Credico A, D'Addazio G, Ghinassi B, Argentieri G, Caputi S, Di Baldassarre A, Sinjari B. Impact on peri-implant connective tissue of laser treated versus traditional healing abutments: a human clinical trials. BMC Oral Health 2023; 23:425. [PMID: 37370064 DOI: 10.1186/s12903-023-03148-y] [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: 03/27/2023] [Accepted: 06/20/2023] [Indexed: 06/29/2023] Open
Abstract
BACKGROUND Dental implant is the principal treatment for edentulism and the healthiness of the peri-implant tissue has a pivotal role for its longterm success. In addition, it has been shown that also the topography of the healing abutment can influence the outcome of the restoration. The objective of this human clinical trial was to assess the impact of a novel laser-treated healing abutment on peri-implant connective tissue and extracellular matrix proteins compared to the conventional machined surface, which served as the control group. METHODS During second surgical stage a customized healing abutment were inserted on 30 single dental implants. Healing abutments were realized with two alternated different surface (two side laser-treated surfaces and two side machined surfaces) in order to be considered both as test and control on the same implant and reduce positioning bias. Following the soft tissue healing period (30 ± 7 days) a 5 mm circular biopsy was retrieved. Immuno-histochemical and quantitative real-time PCR (qPCR) analyses were performed on Collagen, Tenascin C, Fibrillin I, Metalloproteinases (MMPs) and their inhibitor (TIMPs). 15 were processed for qPCR, while the other 15 were processed for immunohistochemical analysis. Paired t-test between the two groups were performed. A value of p < 0.05 was considered statistically significant. RESULTS Results revealed that the connective tissue facing the laser-treated surface expressed statistically significant lower amount of MMPs (p < 0.05) and higher level of TIMPs 3 (p < 0.05), compared to the tissue surrounding the machined implant, which, in turn expressed also altered level of extracellular matrix protein (Tenascin C, Fibrillin I (p < 0.05)) and Collagen V, that are known to be altered also in peri-implantitis. CONCLUSIONS In conclusion, the laser-treated surface holds promise in positively influencing wound healing of peri-implant connective tissue. Results demonstrated that topographic nature of the healing abutments can positively influence mucosal wound healing and molecular expression. Previous studies have been demonstrated how laser treatment can rightly influence integrity and functionality of the gingiva epithelium and cell adhesion. Regarding connective tissue different molecular expression demonstrated a different inflammatory pattern between laser treated or machined surfaces where laser treated showed better response. Targeted interventions and preventive measures on peri- implant topography could effectively minimize the risk of peri-implant diseases contributing to the long-term success and durability of restoration. However, new studies are mandatory to better understand this phenomenon and the role of this surface in the peri-implantitis process. TRIAL REGISTRATION: This trial is registered with ClinicalTrials.gov Identifier: (Registration Number: NCT05754970 ). Registered 06/03/2023, retrospectively registered.
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Affiliation(s)
- Giulia Gaggi
- Human Anatomy and Cell Differentiation Lab, Department of Medicine and Aging Sciences, University "G.d'Annunzio" of Chieti-Pescara, 66100, Chieti, Italy
| | - Andrea Di Credico
- Human Anatomy and Cell Differentiation Lab, Department of Medicine and Aging Sciences, University "G.d'Annunzio" of Chieti-Pescara, 66100, Chieti, Italy
| | - Gianmaria D'Addazio
- Unit of Prosthodontics, Department of Innovative Technologies in Medicine and Dentistry, University "G. d'Annunzio" of Chieti-Pescara, 66100, Chieti, Italy
- Electron Microscopy Laboratory, University "G. d'Annunzio" of Chieti-Pescara, 66100, Chieti, Italy
| | - Barbara Ghinassi
- Human Anatomy and Cell Differentiation Lab, Department of Medicine and Aging Sciences, University "G.d'Annunzio" of Chieti-Pescara, 66100, Chieti, Italy
| | - Giulio Argentieri
- Unit of Prosthodontics, Department of Innovative Technologies in Medicine and Dentistry, University "G. d'Annunzio" of Chieti-Pescara, 66100, Chieti, Italy
- Electron Microscopy Laboratory, University "G. d'Annunzio" of Chieti-Pescara, 66100, Chieti, Italy
| | - Sergio Caputi
- Unit of Prosthodontics, Department of Innovative Technologies in Medicine and Dentistry, University "G. d'Annunzio" of Chieti-Pescara, 66100, Chieti, Italy
- Electron Microscopy Laboratory, University "G. d'Annunzio" of Chieti-Pescara, 66100, Chieti, Italy
| | - Angela Di Baldassarre
- Human Anatomy and Cell Differentiation Lab, Department of Medicine and Aging Sciences, University "G.d'Annunzio" of Chieti-Pescara, 66100, Chieti, Italy.
| | - Bruna Sinjari
- Unit of Prosthodontics, Department of Innovative Technologies in Medicine and Dentistry, University "G. d'Annunzio" of Chieti-Pescara, 66100, Chieti, Italy
- Electron Microscopy Laboratory, University "G. d'Annunzio" of Chieti-Pescara, 66100, Chieti, Italy
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5
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Khorramdel A, Pourabbas R, Sadighi M, Kashefimehr A, Mousavi S. Effect of photodynamic therapy as an adjunctive to mechanical debridement on the nonsurgical treatment of peri-implant mucositis: A randomized controlled clinical trial. Dent Res J (Isfahan) 2023. [DOI: 10.4103/1735-3327.367900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
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Flores V, Venegas B, Donoso W, Ulloa C, Chaparro A, Sousa V, Beltrán V. Histological and Immunohistochemical Analysis of Peri-Implant Soft and Hard Tissues in Patients with Peri-Implantitis. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19148388. [PMID: 35886240 PMCID: PMC9321452 DOI: 10.3390/ijerph19148388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 04/26/2022] [Accepted: 06/06/2022] [Indexed: 11/26/2022]
Abstract
Currently, researchers are focused on the study of cytokines as predictive biomarkers of peri-implantitis (PI) in order to obtain an early diagnosis and prognosis, and for treatment of the disease. The aim of the study was to characterize the peri-implant soft and hard tissues in patients with a peri-implantitis diagnosis. A descriptive observational study was conducted. Fifteen soft tissue (ST) samples and six peri-implant bone tissue (BT) samples were obtained from 13 patients who were diagnosed with peri-implantitis. All the samples were processed and embedded in paraffin for histological and immunohistochemical analyses. A descriptive and quantitative analysis of mast cells and osteocytes, A proliferation-inducing ligand (APRIL), B-cell activating factor (BAFF), osteonectin (ON), and ∝-smooth muscle actin (∝-SMA) was performed. We observed the presence of mast cells in peri-implant soft tissue in all samples (mean 9.21 number of mast cells) and osteocytes in peri-implant hard tissue in all samples (mean 37.17 number of osteocytes). The expression of APRIL-ST was 32.17% ± 6.39%, and that of APRIL-BT was 7.09% ± 5.94%. The BAFF-ST expression was 17.26 ± 12.90%, and the BAFF-BT was 12.16% ± 6.30%. The mean percentage of ON was 7.93% ± 3.79%, and ∝-SMA was 1.78% ± 3.79%. It was concluded that the expression of APRIL and BAFF suggests their involvement in the bone resorption observed in peri-implantitis. The lower expression of osteonectin in the peri-implant bone tissue can also be associated with a deficiency in the regulation of bone remodeling and the consequent peri-implant bone loss.
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Affiliation(s)
- Valentina Flores
- Program of Master in Dental Sciences, Universidad de La Frontera, Temuco 4780000, Chile;
| | - Bernardo Venegas
- Department of Stomatology, Faculty of Health Sciences, Universidad de Talca, Talca 3460000, Chile; (B.V.); (W.D.)
| | - Wendy Donoso
- Department of Stomatology, Faculty of Health Sciences, Universidad de Talca, Talca 3460000, Chile; (B.V.); (W.D.)
| | - Camilo Ulloa
- Department of Surgical Stomatology, Postgraduate Program in Periodontology, School of Dentistry, Universidad de Concepción, Concepción 4070386, Chile;
| | - Alejandra Chaparro
- Department of Oral Pathology and Conservative Dentistry, Faculty of Dentistry, Universidad de Los Andes, Santiago 7620001, Chile;
| | - Vanessa Sousa
- Periodontology and Periodontal Medicine, Center for Host-Microbiome Interactions, Faculty of Dentistry, Oral and Craniofacial Sciences, King’s College London, Guy’s Hospital, London SE1 9RT, UK;
| | - Víctor Beltrán
- Program of Master in Dental Sciences, Universidad de La Frontera, Temuco 4780000, Chile;
- Clinical Investigation and Dental Innovation Center (CIDIC), Dental School and Center for Translational Medicine (CEMT-BIOREN), Universidad de La Frontera, Temuco 4780000, Chile
- Correspondence:
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Dioguardi M, Cantore S, Scacco S, Quarta C, Sovereto D, Spirito F, Alovisi M, Troiano G, Aiuto R, Garcovich D, Crincoli V, Laino L, Covelli M, Malcangi A, Lo Muzio L, Ballini A, Di Cosola M. From Bench to Bedside in Precision Medicine: Diabetes Mellitus and Peri-Implantitis Clinical Indices with a Short-Term Follow-Up: A Systematic Review and Meta-Analysis. J Pers Med 2022; 12:jpm12020235. [PMID: 35207724 PMCID: PMC8878354 DOI: 10.3390/jpm12020235] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 01/31/2022] [Accepted: 02/05/2022] [Indexed: 02/04/2023] Open
Abstract
Background and objective: Diabetes mellitus (DM) refers to a group of metabolic disorders characterized by hyperglycemia resulting from impaired secretion or action of insulin. The high levels of glucose in the blood can negatively affect the healing processes through alterations in vascularization, bone remodeling, and with increased susceptibility to infections. Diabetes mellitus is therefore a risk factor not only for many systemic diseases, but also for localized problems such as peri-implantitis. The objective of this systematic review was to identify a clear relationship between peri-implant inflammation indices and glycemic levels, through the investigation of prospective studies that report data on a short-term follow-up period. Our hypothesis was that peri-implant inflammatory indices may already present themselves in a statistically significant way as altered in patients with DM compared to patients without DM. Materials and methods: This review was reported according to the Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA). Results: More than 992 records were identified in the PubMed, Scopus, and Cochrane Central Register of Controlled Trial electronic databases and only seven studies were included in the meta-analysis. The results of the meta-analysis report worse outcomes in patients with DM, even in the short period of six months, for peri-implatitis inflammation indices, such as Marginal bone loss (standardized (Std). mean difference (MD) 12\6 months 0.81 [0.45, 1.17]\1.82 [0.53, 3.10]), Bleeding on probing (Std. MD 12\6 months 2.84 [1.34, 4.34]\3.44 [1.41, 5.50]), Probing depth (Std. MD 12\6 months 1.14 [0.60, 1.68]\2.24 [0.66, 3.83]), and the plaque index (Std. MD 12 months 2.83 [0.09, 5.57]). Conclusion: The literature linking glycaemic control to peri-implant disease is highly heterogeneous due to lack of consistency of the definition of peri-implantitis and its clinical indicators among studies. Therefore, interpretation of finding and relevance to clinical practice should be considered on individual bases. In the era of personalized medicine, the clinician should utilize individualized information from translational researches and analyze all risk factors to provide the patient with evidence-based treatment options.
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Affiliation(s)
- Mario Dioguardi
- Department of Clinical and Experimental Medicine, University of Foggia, Via Rovelli 50, 71122 Foggia, Italy; (M.D.); (C.Q.); (D.S.); (F.S.); (G.T.); (L.L.M.); (M.D.C.)
| | - Stefania Cantore
- Department of Basic Medical Sciences, Neurosciences and Sensory Organs, University of Bari “Aldo Moro”, 70124 Bari, Italy;
- Faculty of Dentistry (Fakulteti i Mjekësisë Dentare-FMD), University of Medicine, 1001 Tirana, Albania
- Correspondence: (S.C.); (S.S.); (A.B.)
| | - Salvatore Scacco
- Department of Basic Medical Sciences, Neurosciences and Sensory Organs, University of Bari “Aldo Moro”, 70124 Bari, Italy;
- Correspondence: (S.C.); (S.S.); (A.B.)
| | - Cristian Quarta
- Department of Clinical and Experimental Medicine, University of Foggia, Via Rovelli 50, 71122 Foggia, Italy; (M.D.); (C.Q.); (D.S.); (F.S.); (G.T.); (L.L.M.); (M.D.C.)
| | - Diego Sovereto
- Department of Clinical and Experimental Medicine, University of Foggia, Via Rovelli 50, 71122 Foggia, Italy; (M.D.); (C.Q.); (D.S.); (F.S.); (G.T.); (L.L.M.); (M.D.C.)
| | - Francesca Spirito
- Department of Clinical and Experimental Medicine, University of Foggia, Via Rovelli 50, 71122 Foggia, Italy; (M.D.); (C.Q.); (D.S.); (F.S.); (G.T.); (L.L.M.); (M.D.C.)
| | - Mario Alovisi
- Department of Surgical Sciences, Dental School, University of Turin, 10127 Turin, Italy;
| | - Giuseppe Troiano
- Department of Clinical and Experimental Medicine, University of Foggia, Via Rovelli 50, 71122 Foggia, Italy; (M.D.); (C.Q.); (D.S.); (F.S.); (G.T.); (L.L.M.); (M.D.C.)
| | - Riccardo Aiuto
- Department of Biomedical, Surgical, and Dental Science, University of Milan, 20122 Milan, Italy;
| | - Daniele Garcovich
- Department of Dentistry, Universidad Europea de Valencia, Paseo de la Alameda 7, 46010 Valencia, Spain;
| | - Vito Crincoli
- Department of Basic Medical Sciences, Neurosciences and Sensory Organs, University of Bari “Aldo Moro”, 70124 Bari, Italy;
| | - Luigi Laino
- Multidisciplinary Department of Medical-Surgical and Odontostomatological Specialties, University of Campania “Luigi Vanvitelli”, 80121 Naples, Italy;
| | - Michele Covelli
- Interuniversity Research Center “Population, Environment and Heath”—CIRPAS, University of Bari “Aldo Moro”, 70124 Bari, Italy;
| | - Annarita Malcangi
- Public Local Health Company (Azienda Sanitaria Locale, ASL), B.A.T, 76125 Trani, Italy;
| | - Lorenzo Lo Muzio
- Department of Clinical and Experimental Medicine, University of Foggia, Via Rovelli 50, 71122 Foggia, Italy; (M.D.); (C.Q.); (D.S.); (F.S.); (G.T.); (L.L.M.); (M.D.C.)
| | - Andrea Ballini
- Department of Basic Medical Sciences, Neurosciences and Sensory Organs, University of Bari “Aldo Moro”, 70124 Bari, Italy;
- Faculty of Dentistry (Fakulteti i Mjekësisë Dentare-FMD), University of Medicine, 1001 Tirana, Albania
- School of Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy
- Correspondence: (S.C.); (S.S.); (A.B.)
| | - Michele Di Cosola
- Department of Clinical and Experimental Medicine, University of Foggia, Via Rovelli 50, 71122 Foggia, Italy; (M.D.); (C.Q.); (D.S.); (F.S.); (G.T.); (L.L.M.); (M.D.C.)
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Periodontitis Stage III-IV, Grade C and Correlated Factors: A Histomorphometric Study. Biomedicines 2019; 7:biomedicines7020043. [PMID: 31212787 PMCID: PMC6632030 DOI: 10.3390/biomedicines7020043] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Accepted: 06/10/2019] [Indexed: 11/17/2022] Open
Abstract
Background: Periodontitis is a disease that leads to serious functional and esthetic dysfunctions. Periodontitis exists in different forms, and its etiology is related to multiple component causes. Two key processes involved in the evolution of this pathology are angiogenesis and inflammatory infiltrate. The aim of this study was to understand if important factors such as smoking, gender, age, plaque, pus, and probing pocket depth could influence the histomorphological pattern of generalized stage III–IV, grade C periodontitis (GPIII–IVC), which is a particular form of periodontitis. Methods: Eighteen subjects with GPIII–IVC were enrolled in this study. The percentage of inflammatory cells and the vascular area were measured and evaluated in relation to each periodontal disease-associated factor. Results: Females showed a significant increase in the percentage of inflammatory cells compared to males (6.29% vs. 2.28%, p-value = 0.020) and it was higher in non-smokers than in smokers (4.56% vs. 3.14%, p-value = 0.048). Young patients showed a significant increase in vascular area percentage compared to older patients (0.60% vs. 0.46%, p-value = 0.0006) and this percentage was also higher in non-smokers compared to smokers (0.41% vs. 0.55%, p-value = 0.0008). The vascular area was also more than halved in subjects with residual plaque on tooth surfaces (0.74% vs. 0.36%, p-value = 0.0005). Conclusions: These results suggested that even if these factors are commonly related to the worsening of periodontal status, some of them (pus and periodontal probing depth (PPD)) do not affect the inflammatory and vascular patterns.
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Song Z, Weigl P, Wang B. Correlations of inflammatory cytokines, oxidative stress markers, and matrix metalloproteinases in gingival crevicular fluid with peri-implantitis. EUR J INFLAMM 2019. [DOI: 10.1177/2058739219845542] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
This study aimed to analyze the correlations of inflammatory cytokines, oxidative stress markers, and matrix metalloproteinases (MMPs) in gingival crevicular fluid (GCF) with peri-implantitis (PI). Forty patients receiving dental implantation were enrolled. There were 52 implants, which were divided into PI group (42 implants) and health implant (HI) group (10 implants). Fifty-two healthy teeth (HT) with the same names with affected teeth in the patients were selected as the control group. The periodontal status was recorded. The GCF was collected and quantified. The levels of interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α), hypersensitive C-reactive protein (hs-CRP), superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), malondialdehyde (MDA), MMP-13, and MMP-8 were detected using enzyme-linked immunosorbent assay (ELISA). Results showed that the probing depth, sulcus bleeding index, GCF volume, and TNF-α, IL-6, hs-CRP, MMP-8, and MMP-13 levels in GCF in PI group were significantly higher than HI and HT groups, respectively ( P < 0.01 or P < 0.05). The SOD and GSH-Px levels in PI group were significantly lower than HI and HT groups, respectively ( P < 0.05). Excepting hs-CRP, there was no significant difference of each index between HI and HT groups ( P > 0.05). In conclusion, TNF-α, IL-6, hs-CRP, SOD, GSH-Px, MMP-8, and MMP-13 are involved in the occurrence of PI, and they may be used as auxiliary indicators to evaluate the degree of PI. In addition, the clinical periodontal index probing depth and sulcus bleeding index are positively correlated with GCF volume, hs-CRP, MMP-8, and MMP-13.
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Affiliation(s)
- Zhiming Song
- Faculty of Oral and Dental Medicine, J.W. Goethe University, Frankfurt, Germany
| | - Paul Weigl
- Faculty of Oral and Dental Medicine, J.W. Goethe University, Frankfurt, Germany
| | - Bi Wang
- Department of Stomatology, University Hospital, Tsinghua University, Beijing, China
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Abstract
PURPOSE Recently, implantology has shifted its focus from implant placement to periimplant disease early detection, prevention, and treatment. The purpose of this article was to review the current understanding of the biomarkers associated with periimplant diseases. MATERIALS AND METHODS A search of PubMed was conducted up to August 2013 with keywords "peri-implantitis" and "biomarkers." Selected articles addressed the relationship between biomarkers and periimplant mucositis or peri-implantitis. RESULTS Biomarkers have been shown to possess potential in detecting periimplant diseases. For example, interleukin (IL)-1β levels were shown to be a good marker to detect periimplant mucositis lesions before they progress to peri-implantitis. Matrix metalloproteinase (MMP)-8 levels in periimplant sulcus fluid may be useful for monitoring the progression of periimplant disease. Osteoprotegerin (OPG) and receptor activator of NFκB ligand (RANKL) were found to be significantly higher in peri-implantitis sites compared with healthy implant sites. CONCLUSION Biomarkers such as IL-1β, MMP-8, OPG, RANKL, and others have shown promising outcomes in differentiating from periimplant disease to health. However, because of varying results, additional evidence is needed to validate the links reported.
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Cho YD, Shin JC, Yoon HI, Ku Y, Ryoo HM, Kim DJ, Kim DG, Han JS. Characterization of Human Gingival Fibroblasts on Zirconia Surfaces Containing Niobium Oxide. MATERIALS (BASEL, SWITZERLAND) 2015; 8:6018-6028. [PMID: 28793548 PMCID: PMC5512668 DOI: 10.3390/ma8095288] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Revised: 08/25/2015] [Accepted: 09/02/2015] [Indexed: 11/17/2022]
Abstract
It was indicated that tetragonal zirconia polycrystal (TZP) containing yttria (Y₂O₃) and niobium oxide (Nb₂O₅) ((Y,Nb)-TZP) could be an adequate dental material to be used at esthetically important sites. The (Y,Nb)-TZP was also proved to possess its osteogenic potential comparable with those conventional dental implant material, titanium (Ti). The objective of the current study was to characterize cellular response of human gingival fibroblasts (HGFs) to smooth and rough surfaces of the (Y,Nb)-TZP disc, which were obtained by polishing and sandblasting, respectively. Various microscopic, biochemical, and molecular techniques were used to investigate the disc surfaces and cellular responses for the experimental (Y,Nb)-TZP and the comparing Ti groups. Sandblasted rough (Y,Nb)-TZP (Zir-R) discs had the highest surface roughness. HGFs cultured on polished (Y,Nb)-TZP (Zir) showed a rounded cell morphology and light spreading at 6 h after seeding and its proliferation rate significantly increased during seven days of culture compared to other surfaces. The mRNA expressions of type I collagen, integrin α2 and β1 were significantly stimulated for the Zir group at 24 h after seeding. The current findings, combined with the previous results, indicate that (Y,Nb)-TZP provides appropriate surface condition for osseointegration at the fixture level and for peri-implant mucosal sealing at the abutment level producing a suitable candidate for dental implantation with an expected favorable clinical outcome.
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Affiliation(s)
- Young-Dan Cho
- Department of Periodontology, School of Dentistry, Seoul National University, Seoul 110-749,.
| | - Ji-Cheol Shin
- Department of Prosthodontics, School of Dentistry, Seoul National University, Seoul 110-749,.
| | - Hyung-In Yoon
- Department of Prosthodontics, School of Dentistry, Seoul National University, Seoul 110-749,.
| | - Young Ku
- Department of Periodontology, School of Dentistry, Seoul National University, Seoul 110-749,.
| | - Hyun-Mo Ryoo
- Department of Molecular Genetics, School of Dentistry and Dental Research Institute, BK21 Program, Seoul National University, Seoul 110-749, Korea.
| | - Dae-Joon Kim
- Department of Advanced Materials Engineering, Sejong University, Seoul 143-747, Korea.
| | - Do-Gyoon Kim
- Division of Orthodontics, College of Dentistry, Ohio State University, Columbus, OH 43210, USA.
| | - Jung-Suk Han
- Department of Prosthodontics, School of Dentistry, Seoul National University, Seoul 110-749,.
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Janska E, Mohr B, Wahl G. Correlation between peri-implant sulcular fluid rate and expression of collagenase2 (MMP8). Clin Oral Investig 2015; 20:261-6. [DOI: 10.1007/s00784-015-1501-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Accepted: 06/01/2015] [Indexed: 11/28/2022]
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13
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AQP1 expression in human gingiva and its correlation with periodontal and peri-implant tissue alterations. Acta Histochem 2014; 116:898-904. [PMID: 24698289 DOI: 10.1016/j.acthis.2014.02.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2014] [Revised: 02/25/2014] [Accepted: 02/26/2014] [Indexed: 11/22/2022]
Abstract
Aquaporins (AQPs) are a family of hydrophobic integral membrane proteins that function as transmembrane channels and play an important role in tissue homeostasis. Aquaporin-1 (AQP1), in particular, has been reported to be involved in several biological processes including inflammation, angiogenesis, wound healing and others. Periodontitis and peri-implantitis can be defined as inflammatory processes that affect the tissues surrounding a tooth or an osseointegrated implant, respectively. To date, there are limited data about the involvement of AQPs in these diseases. The aim of this study was to evaluate the possible link between the histomorphological alterations and the expression of AQP1 in healthy, pathological and healed periodontal and peri-implant gingival tissues. The results obtained showed that changes in organization of collagen fibers were observed in periodontitis and peri-implantitis, together with an increase in the percentage of area occupied by inflammatory cell infiltration and an increase of AQP1 immunostaining, which was located in the endothelial cells of the vessels within the lamina propria. Moreover, in healed periodontal and peri-implant mucosa a restoration of histomorphological alterations was observed together with a concomitant decrease of AQP1 immunostaining. These data suggested a possible link between the degree of inflammatory state and the presence of AQP1, where the latter could be involved in the chain of inflammatory reactions triggered at periodontal and peri-implant levels.
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Loreto C, Galanti C, Musumeci G, Rusu MC, Leonardi R. Immunohistochemical analysis of matrix metalloproteinase-13 in human caries dentin. Eur J Histochem 2014; 58:2318. [PMID: 24704999 PMCID: PMC3980212 DOI: 10.4081/ejh.2014.2318] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2013] [Revised: 01/08/2014] [Accepted: 01/09/2014] [Indexed: 11/23/2022] Open
Abstract
The immunoexpression profile of matrix metalloproteinase-13 was investigated for the first time in dentin of human caries and healthy teeth. Twelve permanent premolars (10 caries and 2 sound) were decalcified in ethylenediaminetetraacetic acid and processed for embedding in paraffin wax. Sections 3-4 µm in thickness were cut and processed for immunohistochemistry. A mouse monoclonal anti-metalloproteinase-13 antibody was used for localisation using an immunoperoxidase technique. Dentinal immunoreactivity was detected in all teeth; it was weak in sound teeth and strong close to the caries area. These in vivo findings suggest a role for metalloproteinase-13 in the development and progression of adult human dental tissue disorders.
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Cellular populations of periimplant tissues: cytological analysis with sulcular microbrushing. IMPLANT DENT 2014; 23:98-102. [PMID: 24384742 DOI: 10.1097/id.0000000000000029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE Cellular populations of gingival crevicular fluid cytological analysis of integrated implants sites have been investigated by using sulcular cytological brushing, as a means of providing an objective and reproducible technique for monitoring periimplant tissue health. MATERIALS AND METHODS A total of 60 patients with osteointegrated implants bearing at least for 2 years were divided in 2 groups, A and B. Group A consisted of 30 subjects who presented scarce oral hygiene. In Group B, 30 subjects with a good oral hygiene were included. RESULTS Comparative analysis of the data obtained by sulcular microbrushing of the 2 groups put into evidence significative differences in the expression of the microbiological and the cytological parameters. CONCLUSION Clinical monitoring of parodontal and periimplant tissues makes use of several diagnostic tests ranging from clinical and radiological tests to biological assays. However, none of these techniques allows to evaluate periimplant tissue cytological status. This preliminary study suggested sulcular microbrushing might be a useful tool in the early diagnosis and in the micrological monitoring of peri-implantitis.
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Franková J, Pivodová V, Růžička F, Tománková K, Šafářová K, Vrbková J, Ulrichová J. Comparing biocompatibility of gingival fibroblasts and bacterial strains on a different modified titanium discs. J Biomed Mater Res A 2013; 101:2915-24. [DOI: 10.1002/jbm.a.34598] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2012] [Revised: 01/08/2013] [Accepted: 01/09/2013] [Indexed: 11/09/2022]
Affiliation(s)
- Jana Franková
- Department of Medical Chemistry and Biochemistry; Faculty of Medicine and Dentistry; Palacký University Olomouc; Olomouc; Czech Republic
| | - Veronika Pivodová
- Department of Medical Chemistry and Biochemistry; Faculty of Medicine and Dentistry; Palacký University Olomouc; Olomouc; Czech Republic
| | - Filip Růžička
- Department of Microbiology; Faculty of Medicine; Masaryk University and St. Anne's University Hospital; Brno; Czech Republic
| | - Kateřina Tománková
- Department of Medical Biophysics; Faculty of Medicine and Dentistry; Institute of Translation Medicine; Palacký University Olomouc; Olomouc; Czech Republic
| | - Klára Šafářová
- Regional Centre of Advanced Technologies and Materials; Faculty of Science; Palacký University Olomouc; Olomouc; Czech Republic
| | - Jana Vrbková
- Department of Mathematical Analysis and Applications of Mathematics; Faculty of Science; Palacký University Olomouc; Olomouc; Czech Republic
| | - Jitka Ulrichová
- Department of Medical Chemistry and Biochemistry; Faculty of Medicine and Dentistry; Palacký University Olomouc; Olomouc; Czech Republic
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Arakawa H, Uehara J, Hara ES, Sonoyama W, Kimura A, Kanyama M, Matsuka Y, Kuboki T. Matrix metalloproteinase-8 is the major potential collagenase in active peri-implantitis. J Prosthodont Res 2012; 56:249-55. [PMID: 23083963 DOI: 10.1016/j.jpor.2012.07.002] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2012] [Revised: 07/13/2012] [Accepted: 07/30/2012] [Indexed: 11/30/2022]
Abstract
PURPOSE Current clinical procedures to control or regenerate bone loss due to peri-implantitis are not predictable neither accomplish complete resolution. Therefore, early detection of the onset and the active periods of bone loss are crucial for prevention of extensive peri-implant bone resorption. This study aimed to determine a possible association between the presence of collagenases (MMP-1, MMP-8 and MMP-13) in peri-implant sulcular fluid (PISF) and active periods of bone loss by annually adjusted vertical bone loss (AVBL) measurements. METHODS Intended sample consisted of 76 consecutive patients who received oral implant treatment at the Fixed Prosthodontic Clinic of Okayama University Hospital from 1990 to 2000. Twelve subjects were lost to follow-up or refused to participate. Consequently, the actual sample consisted of 64 patients who were followed-up for at least one year. Those patients with AVBL>0.6mm were included in the severe peri-implantitis group, and randomly selected, age-, gender- and implantation site-matched healthy patients (AVBL<0.3mm) comprised the control group. PISF samples were collected from both groups and further analyzed by western blot for detection of collagenases. RESULTS Four patients presented severe peri-implantitis. MMP-8 was the only collagenase detected in peri-implant sites with ongoing bone loss. PISF samples from control group showed no positive reactions to any collagenase. CONCLUSION This study showed MMP-8 as a possible marker for progressive bone loss in peri-implantitis.
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Affiliation(s)
- Hikaru Arakawa
- Oral Rehabilitation and Regenerative Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Japan
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Schulz S, Tomakidi P, Mauth C, Kohal R, Steinberg T. Interactive Fibroblast-Keratinocyte Co-cultures: AnIn Vivo-Like Test Platform for Dental Implant-Based Soft Tissue Integration. Tissue Eng Part C Methods 2012; 18:785-96. [DOI: 10.1089/ten.tec.2012.0027] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Simon Schulz
- Department of Oral Biotechnology, Dental School, University Hospital Freiburg, Freiburg, Germany
| | - Pascal Tomakidi
- Department of Oral Biotechnology, Dental School, University Hospital Freiburg, Freiburg, Germany
| | | | - Ralf Kohal
- Department of Prosthodontics, Dental School, University Hospital Freiburg, Freiburg, Germany
| | - Thorsten Steinberg
- Department of Oral Biotechnology, Dental School, University Hospital Freiburg, Freiburg, Germany
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20
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Effects of different implant-abutment connections on micromotion and stress distribution: prediction of microgap formation. J Dent 2012; 40:467-74. [PMID: 22366313 DOI: 10.1016/j.jdent.2012.02.009] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2011] [Revised: 02/15/2012] [Accepted: 02/16/2012] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVES The aim of this study was to analyse micromotion and stress distribution at the connections of implants and four types of abutments: internal hexagonal, internal octagonal, internal conical and trilobe. METHODS A three dimensional (3D) model of the left posterior mandible was reconstructed from medical datasets. Four dental implant systems were designed and analysed independently in a virtual simulation of a first molar replacement. Material properties, contact properties, physiological loading and boundary conditions were assigned to the 3D model. Statistical analysis was performed using one-way analysis of variance (ANOVA) with a 95% confidence interval and Tukey's Honestly Significant Difference (HSD) multiple comparison test. RESULTS The internal hexagonal and octagonal abutments produced similar patterns of micromotion and stress distribution due to their regular polygonal design. The internal conical abutment produced the highest magnitude of micromotion, whereas the trilobe connection showed the lowest magnitude of micromotion due to its polygonal profile. CONCLUSIONS Non-cylindrical abutments provided a stable locking mechanism that reduced micromotion, and therefore reduced the occurrence of microgaps. However, stress tends to concentrate at the vertices of abutments, which could lead to microfractures and subsequent microgap formation.
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OSTEOBLAST AND GINGIVAL FIBROBLAST MARKERS IN DENTAL IMPLANT STUDIES. Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub 2011; 155:109-16. [DOI: 10.5507/bp.2011.021] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
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Verardi S, Quaranta M, Bordin S. Peri-implantitis fibroblasts respond to host immune factor C1q. J Periodontal Res 2010; 46:134-40. [DOI: 10.1111/j.1600-0765.2010.01323.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Canullo L, Pellegrini G, Allievi C, Trombelli L, Annibali S, Dellavia C. Soft tissues around long-term platform switching implant restorations: a histological human evaluation. Preliminary results. J Clin Periodontol 2010; 38:86-94. [PMID: 21062338 DOI: 10.1111/j.1600-051x.2010.01641.x] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Giannelli M, Bani D, Tani A, Pini A, Margheri M, Zecchi-Orlandini S, Tonelli P, Formigli L. In vitro evaluation of the effects of low-intensity Nd:YAG laser irradiation on the inflammatory reaction elicited by bacterial lipopolysaccharide adherent to titanium dental implants. J Periodontol 2009; 80:977-84. [PMID: 19485829 DOI: 10.1902/jop.2009.080648] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND The bacterial endotoxin lipopolysaccharide (LPS) represents a prime pathogenic factor of peri-implantitis because of its ability to adhere tenaciously to dental titanium implants. Despite this, the current therapeutic approach to this disease remains based mainly on bacterial decontamination, paying little attention to the neutralization of bioactive bacterial products. The purpose of the present study was to evaluate whether irradiation with low-energy neodymium-doped:yttrium, aluminum, and garnet (Nd:YAG) laser, in addition to the effects on bacterial implant decontamination, was capable of attenuating the LPS-induced inflammatory response. METHODS RAW 264.7 macrophages or human umbilical vein endothelial cells were cultured on titanium disks coated with Porphyromonas gingivalis LPS, subjected or not to irradiation with the Nd:YAG laser, and examined for the production of inflammatory cytokines and the expression of morphologic and molecular markers of cell activation. RESULTS Laser irradiation of LPS-coated titanium disks significantly reduced LPS-induced nitric oxide production and cell activation by the macrophages and strongly attenuated intercellular adhesion molecule-1 and vascular cell adhesion molecule expression, as well as interleukin-8 production by the endothelial cells. CONCLUSION By blunting the LPS-induced inflammatory response, Nd:YAG laser irradiation may be viewed as a promising tool for the therapeutic management of peri-implantitis.
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Affiliation(s)
- Marco Giannelli
- Department of Odontostomatology, University of Florence, Florence, Italy
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