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Kniha K, Haas L, Al-Sibai F, Kneer R, Möhlhenrich SC, Hermanns-Sachweh B, Hölzle F, Modabber A. Thermal implant removal in a pig jaw: a proof of concept study. Clin Oral Investig 2024; 28:400. [PMID: 38937381 PMCID: PMC11211192 DOI: 10.1007/s00784-024-05619-0] [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: 10/13/2023] [Accepted: 03/12/2024] [Indexed: 06/29/2024]
Abstract
OBJECTIVES The aim of this study was to evaluate whether thermal implant removal of osseointegrated implants is possible using a diode laser with an specific temperature-time interval. MATERIALS AND METHODS First, tooth extraction of the first three premolars was performed in the maxilla and mandible on both sides of 10 pig. After 3 months, implants were inserted into the upper and lower jaws of 10 pigs. After 3 more months, osseointegrated implants were heated with a laser device to a temperature of 50 °C for 1 min. After 14 days, the implant stability quotient (ISQ), torque-out values, and bone-to-implant contact (BIC) ratio were assessed using resonance frequency analysis. RESULTS ISQ values showed no significant differences within each group or between the control and test groups. Furthermore, torque-out and BIC value measurements presented no significant differences between the groups. CONCLUSIONS At 50°C, changes in the BIC values were noticeably smaller; however, these differences were not significant. Future studies should evaluate the same procedures at either a higher temperature or longer intervals. CLINICAL RELEVANCE With only 50 °C for 1 min, a dental implant will not de-integrate predictably.
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Affiliation(s)
- Kristian Kniha
- Department of Oral and Cranio-Maxillofacial Surgery, University Hospital RWTH, Pauwelstraße 30, Aachen, Germany.
- Private Clinic for Oral Surgery, Dres, Kniha, Rosental 6, 80331, Munich, Germany.
| | - Lorenz Haas
- Department of Oral and Cranio-Maxillofacial Surgery, University Hospital RWTH, Pauwelstraße 30, Aachen, Germany
| | - Faruk Al-Sibai
- Institute of Heat and Mass Transfer, RWTH Aachen University, Augustinerbach 6, 52056, Aachen, Germany
| | - Reinhold Kneer
- Institute of Heat and Mass Transfer, RWTH Aachen University, Augustinerbach 6, 52056, Aachen, Germany
| | | | - Benita Hermanns-Sachweh
- Private Institute for Implant Pathology, ZBMT, Campus Melaten, Pauwelsstaße 17, Aachen, Germany
| | - Frank Hölzle
- Department of Oral and Cranio-Maxillofacial Surgery, University Hospital RWTH, Pauwelstraße 30, Aachen, Germany
| | - Ali Modabber
- Department of Oral and Cranio-Maxillofacial Surgery, University Hospital RWTH, Pauwelstraße 30, Aachen, Germany
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Zhang J, Wang J, You J, Qin X, Chen H, Hu X, Zhao Y, Xia Y. Surface demineralized freeze-dried bone allograft followed by reimplantation in a failed mandibular dental implant. Regen Biomater 2023; 11:rbad102. [PMID: 38173777 PMCID: PMC10761198 DOI: 10.1093/rb/rbad102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 10/24/2023] [Accepted: 11/03/2023] [Indexed: 01/05/2024] Open
Abstract
The removal of a failed implant with high torque causes significant damage to the surrounding tissue, compromising bone regeneration and subsequent osseointegration in the defect area. Here, we report a case of carrier screw fracture followed by immediate implant removal, bone grafting and delayed reimplantation. A dental implant with a fractured central carrier screw was removed using the bur-forceps technique. The resulting three-wall bone defect was filled with granular surface demineralized freeze-dried bone allograft (SD-FDBA). Cone-beam computerized tomography was performed at 1 week, 6 months and 15 months postoperatively and standardized for quantitative evaluation. The alveolar bone width and height at 15 months post-surgery were about 91% of the original values, with a slightly lower bone density, calculated using the gray value ratio. The graft site was reopened and was found to be completely healed with dense and vascularized bone along with some residual bone graft. Reimplantation followed by restoration was performed 8 months later. The quality of regenerated bone following SD-FDBA grafting was adequate for osseointegration and long-term implant success. The excellent osteogenic properties of SD-FDBA are attributed to its human origin, cortical bone-like structure, partly demineralized surfaces and bone morphogenetic protein-2-containing nature. Further investigation with more cases and longer follow-up was required to confirm the final clinical effect.
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Affiliation(s)
- Jing Zhang
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, Jiangsu 210029, PR China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing Medical University, Nanjing, Jiangsu 210029, PR China
| | - Jie Wang
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, Jiangsu 210029, PR China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing Medical University, Nanjing, Jiangsu 210029, PR China
| | - Jiayi You
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, Jiangsu 210029, PR China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing Medical University, Nanjing, Jiangsu 210029, PR China
| | - Xuan Qin
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, Jiangsu 210029, PR China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing Medical University, Nanjing, Jiangsu 210029, PR China
| | - Huimin Chen
- Department of Restorative Dental Sciences, Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, PR China
| | - Xiantong Hu
- Senior Department of Orthopedics, The Fourth Medical Center of PLA General Hospital, Beijing, 100048, PR China
- Beijing Engineering Research Center of Orthopedics Implants, Beijing 100048, PR China
- State Key Laboratory of Military Stomatology, Xi'an 710032, PR China
| | - Yantao Zhao
- Senior Department of Orthopedics, The Fourth Medical Center of PLA General Hospital, Beijing, 100048, PR China
- Beijing Engineering Research Center of Orthopedics Implants, Beijing 100048, PR China
- State Key Laboratory of Military Stomatology, Xi'an 710032, PR China
| | - Yang Xia
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, Jiangsu 210029, PR China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing Medical University, Nanjing, Jiangsu 210029, PR China
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Tafuri G, Santilli M, Manciocchi E, Rexhepi I, D'Addazio G, Caputi S, Sinjari B. A systematic review on removal of osseointegrated implants: un update. BMC Oral Health 2023; 23:756. [PMID: 37833674 PMCID: PMC10576342 DOI: 10.1186/s12903-023-03438-5] [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: 07/13/2023] [Accepted: 09/21/2023] [Indexed: 10/15/2023] Open
Abstract
BACKGROUND Today dental implants represent an effective therapy in case of partial or total edentulism, with an excellent success rate. Despite the results obtained, there may be biological or mechanical complications during the therapy, which lead to the loss of the implant. This systematic review aims to evaluate the current state of the art in the literature on techniques used for the removal of dental implants. Various aspects will be analyzed, such as the success of the technique, any complications, and the advantages and disadvantages of their use. METHODS Two reviewers conducted a literature analysis (PubMed, Embase, Web of Science) of the last 20 years (2003-2023). The main criterion analyzed was the success of the technique, while secondary outcomes such as complications and risks of the technique were also analyzed. 258 articles were identified in the various search databases. 42 eligible articles were subsequently identified after an article screening. Only 18 full texts were subsequently included in the review. RESULTS A total of 18 articles were selected and 1142 implants and 595 patients were included. The main techniques used were the Counter-Torque Ratchet Technique (CTRT), Piezoelectric bone surgery (PBS), trephine drills, carbide burs, Erbium, Chromium, Yttrium, Scandium, Gallium, Garnett (Er:Cr:YSGG) laser and carbon dioxide (CO2) laser. Combined uses of techniques have been identified such as: PBS and trephine burs or carbide burs, trephine burs with the use of a 3d-printed guide, CTRT and trephine burs. The technique with the highest success rate, less morbidity for the patient, and less removal of bone appears to be the CTRT. CONCLUSIONS The use of conservative techniques, especially CTRT, in bone removal is useful to allow for immediate implant placement in the removal area. However, further studies with a high sample size are needed to be performed on all techniques, particularly new randomized controlled trials (RCTs) that allow for the analysis of the success of alternative techniques such as Laser and Piezosurgery, which appear to be very promising.
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Affiliation(s)
- Giuseppe Tafuri
- 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
| | - Manlio Santilli
- 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
| | - Eugenio Manciocchi
- 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
| | - Imena Rexhepi
- 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
| | - 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
| | - 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
| | - 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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Cheng FC, Wang CY, Chiang CP. Removal of failed implants by bone removal technique with a trephine bur: A case report. J Dent Sci 2023. [DOI: 10.1016/j.jds.2023.02.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023] Open
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Srivastava A. Considerations and techniques for removal of osseointegrated implants. J Prosthet Dent 2022; 128:843-844. [DOI: 10.1016/j.prosdent.2022.10.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 10/05/2022] [Accepted: 10/06/2022] [Indexed: 12/03/2022]
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Kochar SP, Reche A, Paul P. The Etiology and Management of Dental Implant Failure: A Review. Cureus 2022; 14:e30455. [DOI: 10.7759/cureus.30455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 10/18/2022] [Indexed: 11/07/2022] Open
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Passant Connection Screw of Dental Implants: An In Vitro SEM Preliminary Study. BIOMED RESEARCH INTERNATIONAL 2022; 2022:9720488. [PMID: 35496044 PMCID: PMC9050316 DOI: 10.1155/2022/9720488] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 03/24/2022] [Accepted: 04/05/2022] [Indexed: 11/30/2022]
Abstract
The use of dental implants in oral rehabilitations has become increasingly common, thanks to the safety and predictability of these rehabilitations. Unfortunately, dental implants, being alloplastic devices, are not free from biomechanical complications, especially in the case in which the connections are complex and involve several components. The aim of the study is to highlight what could be surface alterations using different screwing torques, or by repeating the screwing process several times. In this study, 40 passant screws (Osstem®, South Korea Dental Implant Ebony Gold®) were examined under a Zeiss EVO LS 10 scanning electron microscope (SEM), operating with an accelerating voltage of 20 kV. Passant screws were subdivided into 4 groups: 30 Nmm tightening torque; maximum tightening torque; 2 times 30 Nmm tightening torque; no screwing, new ones (control group). There are no significant differences in the surfaces of the passant screws in SEM images, and the 100% of the passant screws is free of defects or fractures. Surely, further studies and investigations will certainly be needed to allow improvement of these devices.
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Kniha K, Buhl EM, Hermanns-Sachweh B, Al-Sibai F, Bock A, Peters F, Hölzle F, Modabber A. Implant removal using thermal necrosis-an in vitro pilot study. Clin Oral Investig 2021; 25:265-273. [PMID: 32500401 PMCID: PMC7785554 DOI: 10.1007/s00784-020-03361-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 05/19/2020] [Indexed: 12/19/2022]
Abstract
OBJECTIVES The purpose of this pilot porcine cadaver study was to evaluate the feasible temperature thresholds, which affect osteocyte viability and bone matrix in a preclinical setup, assessing the potential of thermal necrosis for implant removal for further in vivo investigations. MATERIALS AND METHODS After implant bed preparation in the upper and lower jaw, temperature effects on the bone were determined, using two tempering pistons with integrated thermocouples. To evaluate threshold temperature and time intervals leading to bone necrosis, one piston generated warm temperatures at 49 to 56 °C for 10 s and the other generated cold temperatures at 5 to 1 °C for 30 s. Effects were assessed by a semi-quantitative, histomorphometrical scoring system, scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), and transmission electron microscopy (TEM). RESULTS The bone matrix was significantly degenerated starting at 51 °C for 10 s and 5 °C for 30 s. The osteocyte condition indicated significant bone damage beginning at cold temperatures of 2 °C. Temperature inputs starting at 53 °C led to decalcification and swollen mitochondria, which lost the structure of their inner cristae. CONCLUSIONS This study identified temperatures and durations, in both heat and cold, so that the number of samples may be kept low in further studies regarding temperature-induced bone necrosis. Levels of 51 °C for 10 s and 5 °C for 30 s have presented significant matrix degeneration. CLINICAL RELEVANCE Temperature thresholds, potentially leading to thermo-explantation of dental implants and other osseointegrated devices, were identified.
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Affiliation(s)
- Kristian Kniha
- Department of Oral and Cranio-Maxillofacial Surgery, RWTH Aachen University, Pauwelstraße 30, 52074, Aachen, Germany.
| | - Eva Miriam Buhl
- Institute of Pathology, Electron Microscopy Facility, RWTH Aachen University, Aachen, Germany
| | - Benita Hermanns-Sachweh
- Private Institute for Implant Pathology, ZBMT, Campus Melaten, Pauwelsstaße 17, 52074, Aachen, Germany
| | - Faruk Al-Sibai
- Institute of Heat and Mass Transfer, RWTH Aachen University, Augustinerbach 6, 52056, Aachen, Germany
| | - Anna Bock
- Department of Oral and Cranio-Maxillofacial Surgery, RWTH Aachen University, Pauwelstraße 30, 52074, Aachen, Germany
| | - Florian Peters
- Department of Oral and Cranio-Maxillofacial Surgery, RWTH Aachen University, Pauwelstraße 30, 52074, Aachen, Germany
| | - Frank Hölzle
- Department of Oral and Cranio-Maxillofacial Surgery, RWTH Aachen University, Pauwelstraße 30, 52074, Aachen, Germany
| | - Ali Modabber
- Department of Oral and Cranio-Maxillofacial Surgery, RWTH Aachen University, Pauwelstraße 30, 52074, Aachen, Germany
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Agarwalla SV, Ellepola K, Silikas N, Castro Neto AH, Seneviratne CJ, Rosa V. Persistent inhibition of Candida albicans biofilm and hyphae growth on titanium by graphene nanocoating. Dent Mater 2020; 37:370-377. [PMID: 33358443 DOI: 10.1016/j.dental.2020.11.028] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 10/30/2020] [Accepted: 11/26/2020] [Indexed: 01/01/2023]
Abstract
OBJECTIVES Candida albicanscolonizes biomaterial surfaces and are highly resistant to therapeutics. Graphene nanocoating on titanium compromises initial biofilm formation. However, its sustained antibiofilm potential is unknown. The objective of this study was to investigate the potential of graphene nanocoating to decrease long-term fungal biofilm development and hyphae growth on titanium. METHODS Graphene nanocoating was deposited twice (TiGD) or five times (TiGV) on grade 4 titanium with vacuum assisted technique and characterized with Raman spectroscopy and atomic force microscope. The biofilm formation and hyphae growth of C. albicans was monitored for seven days by CFU, XTT, confocal, mean cell density and scanning electronic microscopy (SEM). Uncoated titanium was the Control. All tests had three independent biological samples and were performed in independent triplicates. Data was analyzed with one- or two-way ANOVA and Tukey's HSD (α = 0.05). RESULTS Both TiGD and TiGV presented less biofilms at all times points compared with Control. The confocal and SEM images revealed few adhered cells on graphene coated samples, absence of hyphae and no features of a mature biofilm architecture. The increase in number of layers of graphene nanocoating did not improve its antibiofilm potential. SIGNIFICANCE The graphene nanocoating exerted a long-term persistent inhibitory effect on the biofilm formation on titanium. The fewer cells that were able to attach on graphene coated titanium were scattered and unable to form a mature biofilm with hyphae elements. The findings open opportunities to prevent microbial attachment and proliferation on implantable materials without the use of antibiotics.
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Affiliation(s)
| | - Kassapa Ellepola
- Louisiana State University Health Sciences Center, School of Dentistry, USA
| | - Nikolaos Silikas
- Division of Dentistry, School of Medical Sciences, University of Manchester, Manchester, United Kingdom
| | - A H Castro Neto
- Centre for Advanced 2D Materials and Graphene Research Centre, National University of Singapore, Singapore
| | - Chaminda Jayampath Seneviratne
- National Dental Centre Singapore, SingHealth, Duke NUS Medical School, 05, Hospital Avenue, National Dental Centre Singapor, Singapore.
| | - Vinicius Rosa
- Faculty of Dentistry, National University of Singapore, 9 Lower Kent Ridge Road, Singapore; Centre for Advanced 2D Materials and Graphene Research Centre, National University of Singapore, Singapore; NUS Craniofacial Research and Innovation Center, National University of Singapore, Singapore.
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Kniha K, Hölzle F, Al-Sibai F, Jörg J, Kneer R, Modabber A. Heat analysis of different devices for thermo-explantation of dental implants: a numeric analysis and preclinical in-vitro model. J ORAL IMPLANTOL 2020; 47:455-463. [PMID: 33270868 DOI: 10.1563/aaid-joi-d-20-00046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Thermal treatment may reverse the osseointegration of implants and could become an atraumatic controlled method for implant removal in the future. The aim of this non-random in vitro study was to empirically identify suitable sources for a controlled heating process, in order to generate a homogenous temperature distribution at a threshold level of 47°C for future in vivo research. Two different set-ups evaluating four different sources (water, laser, monopolar and an electrical joule heater device) were used to carry out infrared measurements and numerical calculations at 47°C along the implant axis and along the periimplant area at the axial plane. Furthermore, required time intervals to heat up the implant tip from 33°C to 47°C were determined. The monopolar electric device led to the most uneven and unpredictable implant heating and was therefore excluded. The thermal analysis suggested identical thermal distributions without any significant differences for water and electrical joule sources with a heat maximum at the implant shoulder (p > 0.05). On the other hand, the laser device may produce the temperature maximum in the middle of the implant without any afterglow effect (p < 0.01). When the implant was heated from 33°C up to 47°C, the water device indicated the fastest approach. Thermal distributions of water and laser sources may be suitable for clinical applications. For future research the numerical analysis may suggests an ideal time interval of 120s to 180s for a homogenous implant temperature of 47°C.
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Affiliation(s)
- Kristian Kniha
- Universitatsklinikum Aachen Department of oral and maxillofacial surgery Pauwelsstraße 30 GERMANY Aachen Nordrheinwestfalen 52074 Universitatsklinikum Aachen
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Titanium Corrosion in Peri-Implantitis. MATERIALS 2020; 13:ma13235488. [PMID: 33276474 PMCID: PMC7730765 DOI: 10.3390/ma13235488] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 11/10/2020] [Accepted: 11/20/2020] [Indexed: 11/17/2022]
Abstract
Titanium (Ti) corrodes clinically in the presence of bacteria. We investigated this phenomenon as a function of Ti particles found in biopsied tissues around peri-implantitis sites and surface roughness of failed Ti implants. Tissue biopsies were surgically collected from peri-implantitis sites, processed, and embedded in resin. The resin-embedded samples were hand trimmed to the region of interest and semi-thick (500 nm) sections were collected onto coverslips. One section was toluidine blue post-stained as a reference. The remainder sections were left unstained for energy-dispersive X-ray spectroscopy (EDX) analysis. Processed samples were examined under scanning electron microscopy (SEM) and EDX. Corresponding failed implants were also removed and examined under SEM and EDX. Five out of eight biopsied samples demonstrated the presence of Ti particles in the soft tissue, suggesting the true rate among all failures was between 24.5% and 91.5% (the lower bound of a 95% confidence interval for the true rate of Ti presence). SEM analysis of failed implant bodies also indicated changes in surface morphology and appeared less detailed with decreased weight percent of Ti on the surface of the failed implants. In conclusion, Ti particles were noted in 5/8 biopsied samples. Surface morphologies were smoother in failed implants compared with the reference implant.
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Solderer A, Al‐Jazrawi A, Sahrmann P, Jung R, Attin T, Schmidlin PR. Removal of failed dental implants revisited: Questions and answers. Clin Exp Dent Res 2019; 5:712-724. [PMID: 31890309 PMCID: PMC6934347 DOI: 10.1002/cre2.234] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 07/19/2019] [Accepted: 07/22/2019] [Indexed: 12/14/2022] Open
Abstract
Objectives This narrative review is aiming on showing reasons for implant failure, removal techniques, and respective clinical considerations; further, the survival rate of implants in previous failed sites is examined. Materials and methods Questions have been formulated, answered, and discussed through a literature search including studies assessing implant failure and removal up to 2018. Results Studies describing reasons for implant failure, implant removal techniques, and the reinsertion of implants in a previous failed site (n = 12) were included. To date, peri-implantitis is the main reason for late implant failure (81.9%). Trephine burs seem to be the best-known method for implant removal. Nevertheless, the counter-torque-ratchet-technique, because of the low invasiveness, should be the first choice for the clinician. Regarding zirconia implant removal, only scarce data are available. Implantation in previously failed sites irrespective of an early or late failure results in 71% to 100% survival over 5 years. Conclusion If removal is required, interventions should be based on considerations regarding minimally invasive access and management as well as predictable healing. (Post)Operative considerations should primarily depend on the defect type and the consecutive implantation plans.
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Affiliation(s)
- Alex Solderer
- Clinic of Conservative and Preventive DentistryUniversity of ZurichZurichSwitzerland
| | | | - Philipp Sahrmann
- Clinic of Conservative and Preventive DentistryUniversity of ZurichZurichSwitzerland
| | - Ronald Jung
- Clinic of Reconstructive DentistryUniversity of ZurichZurichSwitzerland
| | - Thomas Attin
- Clinic of Conservative and Preventive DentistryUniversity of ZurichZurichSwitzerland
| | - Patrick R. Schmidlin
- Clinic of Conservative and Preventive DentistryUniversity of ZurichZurichSwitzerland
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Wang WR, Chang XF, He LL. [Methods of removing failed implants]. HUA XI KOU QIANG YI XUE ZA ZHI = HUAXI KOUQIANG YIXUE ZAZHI = WEST CHINA JOURNAL OF STOMATOLOGY 2018; 36:212-214. [PMID: 29779286 DOI: 10.7518/hxkq.2018.02.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Implant restoration has become one of the most regular methods of restoring dentition defect or edentulous. Implant placement and osseointegration are partly unreserved (fracture, implant is not in the correct three-dimensional position and cannot be repaired, peri-implantitis-affected nonmobile implants) need to be removed. This article reviews the different methods of removing implants and discusses the limitations of each method, as well as the complications that may occur during the procedure.
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Affiliation(s)
- Wan-Rong Wang
- Dept. of Implant Dentistry, Hospital of Stomatology, Xi'an Jiaotong University, Xi'an 710000, China;State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Xiao-Feng Chang
- Dept. of Implant Dentistry, Hospital of Stomatology, Xi'an Jiaotong University, Xi'an 710000, China;Clinical Research Center of Shanxi Province for Dental and Maxillofacial Diseases, Xi'an 710000, China
| | - Long-Long He
- Dept. of Implant Dentistry, Hospital of Stomatology, Xi'an Jiaotong University, Xi'an 710000, China;Clinical Research Center of Shanxi Province for Dental and Maxillofacial Diseases, Xi'an 710000, China
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Annual review of selected scientific literature: Report of the committee on scientific investigation of the American Academy of Restorative Dentistry. J Prosthet Dent 2017; 118:281-346. [DOI: 10.1016/j.prosdent.2017.04.027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 04/27/2017] [Accepted: 04/27/2017] [Indexed: 01/19/2023]
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