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Herrera-Pérez P, García-De-La-Fuente AM, Andia-Larrea E, Marichalar-Mendia X, Aguirre-Urizar JM, Aguirre-Zorzano LA. Clinical analysis of the tooth-implant papilla for two narrow-diameter titanium-zirconium implants in the anterior area: prospective controlled clinical study. BMC Oral Health 2024; 24:310. [PMID: 38443879 PMCID: PMC10916199 DOI: 10.1186/s12903-024-04075-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Accepted: 02/26/2024] [Indexed: 03/07/2024] Open
Abstract
BACKGROUND Rehabilitation of the anterior area when the mesio-distal space is reduced is a challenge for the clinician, due to the patient's anatomical limitations and aesthetic requirements. Narrow Diameter Implants (NDI) are an option of treatment when the standard diameter implant is not possible, but the evidence is scarce. This prospective clinical study aims to analyze the formation of the tooth-implant papilla between the implant and the adjacent natural tooth in the maxillary lateral incisors and mandibular incisors. METHODS A total of 40 patients treated with NDI, of titanium-zirconium (Ti-Zr) alloy i.e., 2.9 mm Test Group (TG) and 3.3 mm Control Group (CG), were included. The mesiodistal distance between the adjacent natural teeth was used for implant selection, maintaining 1.5 mm between the fixation and the adjacent tooth. Clinical assessment was performed by a clinical examiner at 6 and 12 months after the final prosthesis. The primary variable was the Jemt Papillary Index. Also, implant survival rate (SR), complications, Implant Stability Quotient (ISQ), and patient-reported outcomes measures (PROMs) such as aesthetics, chewing, phonation, comfort, and self-esteem were analyzed. RESULTS A significant amount of papilla filling was observed concerning the baseline, with a trend towards more formation of the papilla in the TG, with a JPI score of 3. No significant differences were observed between the two groups regarding implant SR, clinical parameters, and complications. In terms of PROMs, a higher satisfaction in the TG was observed, with significant intergroup differences for aesthetics, comfort, self-esteem, and primary stability ISQ (TG: 59.05 (SD: 5.4) vs. CG: 51.55 (SD: 5.7)). CONCLUSIONS The 2.9 mm diameter Ti-Zr implants achieved a formation of papilla similar to 3.3 mm implants in the anterior region at 12 months of follow-up after the final prosthetic restoration. The use of Ti-Zr implants with a diameter of 2.9 mm to rehabilitate single teeth in areas of the anterior region, where the mesiodistal distance is limited, showed favorable clinical results and a high degree of satisfaction during 1 year of observation similar to 3.3 mm dental implants. TRIAL REGISTRATION This study was retrospectively registered in ClinicalTrials.gov with the number NCT05642520, dated 18/11/2022.
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Affiliation(s)
| | - Ana María García-De-La-Fuente
- Research Group: GIU21/042Department of StomatologyFaculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), Barrio Sarriena S/N, 48940, Leioa, Biscay, Spain.
| | - Eztizen Andia-Larrea
- International University of Catalunya, Barcelona, Spain
- Department of Stomatology, University of the Basque Country (UPV/EHU), Biscay, Spain
| | - Xabier Marichalar-Mendia
- Research Group: GIU21/042, Department of Nursery I, University of the Basque Country (UPV/EHU), Biscay, Spain
| | - José Manuel Aguirre-Urizar
- Research Group: GIU21/042Department of StomatologyFaculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), Barrio Sarriena S/N, 48940, Leioa, Biscay, Spain
| | - Luis Antonio Aguirre-Zorzano
- Research Group: GIU21/042Department of StomatologyFaculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), Barrio Sarriena S/N, 48940, Leioa, Biscay, Spain
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Assaf A, Saad M, Hijawi S. Use of narrow-diameter implants in the posterior segments of the jaws: A retrospective observational study of 2 to 11 years. J Prosthet Dent 2023; 130:840-848. [PMID: 35190196 DOI: 10.1016/j.prosdent.2022.01.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 12/30/2021] [Accepted: 01/04/2022] [Indexed: 12/14/2022]
Abstract
STATEMENT OF PROBLEM The placement of narrow-diameter implants (NDIs) in the posterior region is still debated in view of the high biomechanical risks in these areas. PURPOSE The purpose of this retrospective observational study was to evaluate the success and survival rates of NDIs restored with fixed prostheses in the posterior region (primary outcome) and analyze whether splinting multiple units (prosthesis design) affects the biological and mechanical complications (secondary outcome). MATERIAL AND METHODS Dental records from 2 private clinics were reviewed for NDIs in the posterior region installed between 2009 and 2018. Ninety study participants (58 women and 32 men) aged between 21 and 84 years (mean age 49.9 years) were recalled for the assessment of implant survival and success of 160 NDIs previously provided for partial posterior edentulism associated with moderate horizontal bone loss or reduced interradicular space (105 premolars and 55 molars). The implants were restored with metal-ceramic single crowns or splinted multiple-unit prostheses, either screw-retained or cemented on custom (n=100) or stock titanium abutments (n=60). Peri-implant probing depth (PPD), bleeding on probing (BOP), bone quality, type of edentulism, and patient satisfaction were scored. The chi-squared test for independence and 2-sample Welch t test were performed for statistical analysis (α=.05). RESULTS The overall success rate was 89.37%. One implant had been removed 4 years after loading, another after 9 years, yielding a cumulative survival rate of 98.75%. Fourteen implants exhibited PPD > 5 mm. One implant and 1 abutment screw fractured, and 16 restorations demonstrated porcelain chipping. The chi-squared test showed no significant relationship between prosthetic design and complications whether biological (P=.087) or mechanical (P=.805). Eighty-two percent of patients were satisfied with esthetics, 76% with function, 85% with total duration of treatment, and 90% with overall treatment cost. CONCLUSIONS Within the limitations of this retrospective study, NDIs may be considered a reliable option to replace posterior teeth. The prosthetic design had no significant impact on biological or mechanical complications.
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Affiliation(s)
- André Assaf
- Clinical Associate Professor, Department of Prosthodontics, Faculty of Dentistry, Beirut Arab University, Beirut, Lebanon; Former Head, Dental Biomaterials and Technology Unit, Faculty of Dentistry, Lebanese University, Beirut, Lebanon.
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Khaohoen A, Sornsuwan T, Chaijareenont P, Poovarodom P, Rungsiyakull C, Rungsiyakull P. Biomaterials and Clinical Application of Dental Implants in Relation to Bone Density-A Narrative Review. J Clin Med 2023; 12:6924. [PMID: 37959389 PMCID: PMC10649288 DOI: 10.3390/jcm12216924] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Revised: 10/29/2023] [Accepted: 11/02/2023] [Indexed: 11/15/2023] Open
Abstract
Titanium has been the material of choice for dental implant fixtures due to its exceptional qualities, such as its excellent balance of rigidity and stiffness. Since zirconia is a soft-tissue-friendly material and caters to esthetic demands, it is an alternative to titanium for use in implants. Nevertheless, bone density plays a vital role in determining the material and design of implants. Compromised bone density leads to both early and late implant failures due to a lack of implant stability. Therefore, this narrative review aims to investigate the influence of implant material/design and surgical technique on bone density from both biomechanical and biological standpoints. Relevant articles were included for analysis. Dental implant materials can be fabricated from titanium, zirconia, and PEEK. In terms of mechanical and biological aspects, titanium is still the gold standard for dental implant materials. Additionally, the macro- and microgeometry of dental implants play a role in determining and planning the appropriate treatment because it can enhance the mechanical stress transmitted to the bone tissue. Under low-density conditions, a conical titanium implant design, longer length, large diameter, reverse buttress with self-tapping, small thread pitch, and deep thread depth are recommended. Implant material, implant design, surgical techniques, and bone density are pivotal factors affecting the success rates of dental implant placement in low-density bone. Further study is required to find the optimal implant material for a clinical setting's bone state.
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Affiliation(s)
- Angkoon Khaohoen
- Department of Prosthodontics, Faculty of Dentistry, Chiang Mai University, Chiang Mai 50200, Thailand; (A.K.); (P.C.); (P.P.)
| | - Tanapon Sornsuwan
- Department of Restorative Dentistry, Faculty of Dentistry, Naresuan University, Phitsanulok 65000, Thailand;
| | - Pisaisit Chaijareenont
- Department of Prosthodontics, Faculty of Dentistry, Chiang Mai University, Chiang Mai 50200, Thailand; (A.K.); (P.C.); (P.P.)
| | - Pongsakorn Poovarodom
- Department of Prosthodontics, Faculty of Dentistry, Chiang Mai University, Chiang Mai 50200, Thailand; (A.K.); (P.C.); (P.P.)
| | - Chaiy Rungsiyakull
- Department of Mechanical Engineering, Faculty of Engineering, Chiang Mai University, Chiang Mai 50200, Thailand;
| | - Pimduen Rungsiyakull
- Department of Prosthodontics, Faculty of Dentistry, Chiang Mai University, Chiang Mai 50200, Thailand; (A.K.); (P.C.); (P.P.)
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Verma A, Agrawal KK, Chand P, Ramashanker, Tripathi S, Arya D. Clinical Outcomes of Titanium Zirconium and Titanium Dental Implants under Immediate Functional Loading in Posterior Mandibular Region. Indian J Dent Res 2023; 34:365-370. [PMID: 38739813 DOI: 10.4103/ijdr.ijdr_313_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Accepted: 09/08/2023] [Indexed: 05/16/2024] Open
Abstract
BACKGROUND Studies comparing the clinical performance of titanium zirconium (Ti-Zr) and titanium (Ti) dental implants subjected to immediate loading in the posterior mandibular region where occlusal forces are higher are sparse in the current literature. Hence, the study aimed to evaluate and compare the clinical outcomes of Ti-Zr and Ti dental implants under immediate functional loading in the mandibular posterior region. METHODS Forty participants fulfilling the predetermined selection criteria were randomly grouped based on dental implant used; Titanium zirconium (Ti-Zr):20, and Titanium (Ti):20. Dental implants were placed through a standard full-thickness mucoperiosteal flap approach and loaded immediately fulfilling the principle of implant protective occlusion. Clinical parameters including crestal bone loss (CBL), modified plaque index (MPI), probing depth (PD) and modified sulcular bleeding index (MSBI) were measured at baseline and follow-up visits (4, 8, and 12 months). Obtained data were compared with standard tests such as the t-test, Chi-square test, and Mann-Whitney U test. RESULTS On intergroup comparison, CBL was more in the Ti-Zr group as compared to the Ti group at 4 months (0.72 ± 0.16 mm versus 0.70 ± 0.13 mm), but it was less at 8 months (1.08 ± 0.16 mm versus 1.13 ± 0.13 mm) and 12 months (1.19 ± 0.17 mm versus 1.24 ± 0.12 mm) but the difference was not statistically significant (P > 0.05). Mann-Whitney test also revealed no statistically significant difference in MPI, PD and MSBI at 4 months, 8 months and 12 months recall (P > 0.05). CONCLUSIONS CBL and periodontal parameters of Ti-Zr dental implants were found similar to Ti dental implants under immediate loading in the posterior mandibular region. However, further studies are needed to determine its long-term efficacy and cost-effectiveness.
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Affiliation(s)
- Aditi Verma
- Department of Prosthodontics, King George's Medical University, Lucknow, Uttar Pradesh, India
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Stricker A, Bergfeldt T, Fretwurst T, Addison O, Schmelzeisen R, Rothweiler R, Nelson K, Gross C. Impurities in commercial titanium dental implants - A mass and optical emission spectrometry elemental analysis. Dent Mater 2022; 38:1395-1403. [PMID: 35781168 DOI: 10.1016/j.dental.2022.06.028] [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: 02/19/2022] [Revised: 06/19/2022] [Accepted: 06/22/2022] [Indexed: 11/17/2022]
Abstract
OBJECTIVE Titanium (Ti) is considered bioinert and is still regarded as the "gold standard" material for dental implants. However, even 'commercial pure' Ti will contain minor fractions of elemental impurities. Evidence demonstrating the release of Ti ions and particles from 'passive' implant surfaces is increasing and has been attributed to biocorrosion processes which may provoke immunological reactions. However, Ti observed in peri-implant tissues has been shown to be co-located with elements considered impurities in biomedical alloys. Accordingly, this study aimed to quantify the composition of impurities in commercial Ti dental implants. METHODS Fifteen commercial titanium dental implant systems were analyzed using inductively coupled plasma-mass spectrometry (ICP-MS) and optical emission spectrometry (ICP-OES). RESULTS The elemental composition of implants manufactured from commercially pure grades of Ti, Ti-6Al-4V, and the TiZr alloy (Roxolid) conformed to the respective ISO/ASTM standards or manufacturers´ data (TiZr/Roxolid). However, all implants investigated included exogenous metal contaminants including Ni, Cr, Sb, and Nb to a variable extent. Other contaminants detected in a fraction of implants included As and the radionuclides U-238 and Th-232. SIGNIFICANCE Although all Ti implant studies conformed with their standard compositions, potentially allergenic, noxious metals and even radionuclides were detected. Since there are differences in the degree of contamination between the implant systems, a certain impurity fraction seems technically avoidable. The clinical relevance of these findings must be further investigated, and an adaptation of industry standards should be discussed.
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Affiliation(s)
- Andres Stricker
- Department of Oral and Maxillofacial Surgery, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Hugstetter Str. 55, 79106 Freiburg im Breisgau, Germany.
| | - Thomas Bergfeldt
- Institute of Applied Materials - Applied Material Physics (IAM-AWP), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany.
| | - Tobias Fretwurst
- Department of Oral and Maxillofacial Surgery, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Hugstetter Str. 55, 79106 Freiburg im Breisgau, Germany.
| | - Owen Addison
- Centre for Oral, Clinical & Translational Sciences, Faculty of Dentistry, Oral and Craniofacial Sciences, King's College London, Guy's Hospital, Great Maze Pond, SE1 9RT London, UK.
| | - Rainer Schmelzeisen
- Department of Oral and Maxillofacial Surgery, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Hugstetter Str. 55, 79106 Freiburg im Breisgau, Germany.
| | - René Rothweiler
- Department of Oral and Maxillofacial Surgery, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Hugstetter Str. 55, 79106 Freiburg im Breisgau, Germany.
| | - Katja Nelson
- Department of Oral and Maxillofacial Surgery, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Hugstetter Str. 55, 79106 Freiburg im Breisgau, Germany.
| | - Christian Gross
- Department of Oral and Maxillofacial Surgery, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Hugstetter Str. 55, 79106 Freiburg im Breisgau, Germany.
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Xie B, Chen J, Zhao T, Shen J, Dörsam I, He Y. Three-Dimensional Finite Element Analysis of Anterior Fixed Partial Denture Supported by Implants with Different Materials. Ann Anat 2022; 243:151943. [DOI: 10.1016/j.aanat.2022.151943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 02/17/2022] [Accepted: 03/17/2022] [Indexed: 11/17/2022]
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Tan T, Zhao Q, Kuwae H, Ueno T, Chen P, Tsutsumi Y, Mizuno J, Hanawa T, Wakabayashi N. Surface properties and biocompatibility of sandblasted and acid-etched titanium-zirconium binary alloys with various compositions. Dent Mater J 2021; 41:266-272. [PMID: 34866118 DOI: 10.4012/dmj.2021-210] [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: 11/23/2022]
Abstract
Ti-Zr alloys have been investigated as an alternative to commercially pure Ti (c.p.Ti). According to our previous studies on the mechanical properties of Ti-Zr alloys, a Zr proportion in the range of 30-50 mol% has competitive advantages over Ti-10Zr and c.p.Ti. The aim of this study is to evaluate the biological response to Ti-Zr alloys with different compositions and their surface characteristics. Alloy surfaces are modified by sandblasting and sulfuric acid etching. As a result, similar surface structures are observed for c.p.Ti, Ti-10Zr, and Ti-30Zr, whereas Ti-50Zr does not form a micro-rough structure by the same treatment process. No significant difference is found in the viability of cells on c.p.Ti, Ti-10Zr, and Ti-30Zr, whereas lower cell attachment levels are detected on Ti-50Zr. In summary, Ti-30Zr reliably forms a micro-rough structure, which provides one evidence for its application in a new dental implant material.
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Affiliation(s)
- Tianbo Tan
- Removable Partial Prosthodontics, Department of Masticatory Function Rehabilitation, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
| | - Qian Zhao
- Removable Partial Prosthodontics, Department of Masticatory Function Rehabilitation, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
| | - Hiroyuki Kuwae
- Research Organization for Nano and Life Innovation, Waseda University
| | - Takeshi Ueno
- Removable Partial Prosthodontics, Department of Masticatory Function Rehabilitation, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
| | - Peng Chen
- Department of Metallic Biomaterials, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University
| | - Yusuke Tsutsumi
- Research Center for Structural Materials, National Institute for Materials Science
| | - Jun Mizuno
- Research Organization for Nano and Life Innovation, Waseda University
| | - Takao Hanawa
- Department of Metallic Biomaterials, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University
| | - Noriyuki Wakabayashi
- Removable Partial Prosthodontics, Department of Masticatory Function Rehabilitation, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
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Lin IP, Lai EHH, Chen SH, Sun TC, Chang JZC, Sun JS. Restoration of a wide edentulous posterior site with two small-diameter implants: Biologically-driven alternative treatment. J Formos Med Assoc 2021; 121:1295-1301. [PMID: 34593273 DOI: 10.1016/j.jfma.2021.09.011] [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] [Received: 08/25/2021] [Revised: 09/15/2021] [Accepted: 09/17/2021] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND/PURPOSE Crestal bone stability, implant rigidity and occlusal loading are issues with small-diameter implants. This article demonstrates the use of two small-diameter implants replacing a missing wide edentulous site and discusses factors that may affect bone changes. METHODS Patients who wanted to restore an edentulous space measuring from 12 to 14 mm wide in the posterior region were offered an alternative treatment option, using two narrow or regular-diameter implants instead of one wide implant. In the study, the crestal bone stability of 12 implants in 6 edentulous sites was assessed by cone beam CTs and periapical radiographs in follow-up visits for up to 4 years. RESULTS The bone level of all the implants was stable at buccal, lingual, mesial and distal sites, with mean values < 1 mm. The average buccal bone thickness was 1.15 ± 1.07 mm and lingual was 1.86 ± 0.89 mm, meaning that implants were surrounded by a sufficient amount of bone. The good treatment outcome may be attributed to the capability of fabricating better emergence profiles, angles (Mean: 20.67 ± 7.82° at the mesial and 20.25 ± 8.23° at the distal site) and cleansable embrasures of prostheses which are key to maintaining good oral hygiene and implant health. CONCLUSION Using two narrow or regular-diameter implants to replace a single edentulous site measured around 12-14 mm wide in posterior region seemed to be a feasible treatment option. It is especially suitable for sites with ridge atrophy and/or patients suffering from systemic diseases.
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Affiliation(s)
- I-Ping Lin
- Division of Periodontology, Department of Dentistry, National Taiwan University Hsin-Chu Hospital, Hsinchu, Taiwan; Graduate Institute of Clinical Dentistry, School of Dentistry, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Eddie Hsiang-Hua Lai
- School of Dentistry, College of Medicine, National Taiwan University, Taipei, Taiwan.
| | - Szu-Han Chen
- Division of Prosthodontics, Department of Dentistry, National Taiwan University Hsin-Chu Hospital, Hsinchu, Taiwan
| | - Teresa Chanting Sun
- Department of Periodontology, Mackay Memorial Hospital, Taipei, Taiwan; Department of Periodontology, School of Dentistry, National Defense Medical Center and Tri-Service General Hospital, Taipei, Taiwan
| | | | - Jui-Sheng Sun
- Department of Orthopedics, China Medical University Hospital, Taichung City, Taiwan
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Eskan MA, Uzel G, Yilmaz S. A fixed reconstruction of fully edentulous patients with immediate function using an apically tapered implant design: a retrospective clinical study. Int J Implant Dent 2020; 6:77. [PMID: 33225376 PMCID: PMC7680819 DOI: 10.1186/s40729-020-00271-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Accepted: 10/27/2020] [Indexed: 11/25/2022] Open
Abstract
Background Immediate function has become an accepted treatment modality for fixed restorations in completely edentulous jaws. It is known that implant microtopography (surface) may enhance osseointegration, while implant macrotopography (macrodesign) plays an important role in primary stability in the patient requiring an immediate loading. The aim of this retrospective study was to evaluate the clinical and radiographic outcomes of the edentulous subjects treated with narrow and/or regular diameter, which placed and loaded immediately. Methods Forty-two consecutive patients received 171 implants, including regular and narrow diameter implants (NDIs). Each jaw, 19 mandibles and 24 maxillae, was treated with a fixed-full arch prosthesis according to the Straumann® Pro Arch concept. The majority (95%) of the restorations were supported by four implants, of which the posterior two implants were tilted. A provisional functional acrylic prosthesis was delivered on the day of surgery. All patients were followed up to 55 months. Cumulative survival rate was determined using Kaplan-Meier analysis. Radiological measurement of marginal bone level was performed. Results The overall follow-up time for survival rate was up to 55 months. Four implants (3 implants in maxilla, 1 implant in mandible) were lost, resulting in an overall cumulative implant survival rate of 97.7%. Implant survival rate in the axial and tilted implants was not statistically significant. The mean of interproximal marginal bone loss was 0.15 mm after 24 months. Good soft tissue health was observed in almost 99% of patients. The final prosthesis survival rate was 100%. Conclusions The results of this retrospective pilot study indicated that total edentulous patients requiring an immediate implant placement and loading can be successfully treated with this implant design. The improved mechanical properties of these implants might give a more conservative treatment option for the jaws showing a severe horizontal alveolar bone resorption. Supplementary Information The online version contains supplementary material available at 10.1186/s40729-020-00271-1.
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Affiliation(s)
- Mehmet Akif Eskan
- Clinic Eska, Polat Tower, Fulya Mah., Yesilcimen Sk. Sisli, Istanbul, Turkey. .,College of Dental Medicine, Department of Periodontics, NOVA Southeastern University, Fort Lauderdale, FL, USA.
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Cruz RS, Lemos CAA, de Batista VES, Yogui FC, Oliveira HFF, Verri FR. Narrow-diameter implants versus regular-diameter implants for rehabilitation of the anterior region: a systematic review and meta-analysis. Int J Oral Maxillofac Surg 2020; 50:674-682. [PMID: 33158693 DOI: 10.1016/j.ijom.2020.10.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 09/16/2020] [Accepted: 10/02/2020] [Indexed: 12/26/2022]
Abstract
The aim of this systematic review and meta-analysis was to evaluate studies comparing implant survival rates, marginal bone loss (MBL), and mechanical and biological complication rates between narrow-diameter implants (NDIs) and regular-diameter implants (RDIs) used for oral rehabilitation in the anterior region. The review was conducted according to the PRISMA checklist. Two independent reviewers performed a comprehensive search of the PubMed/MEDLINE, Embase, Scopus, and Cochrane Library databases for studies published until May 2020. A total of 843 implants (484 NDIs and 359 RDIs) were included. No significant difference in implant survival rate (risk difference (RD) 0.01, 95% confidence interval (CI) -0.01 to 0.03; P=0.34), MBL (standardised mean difference -0.51mm, 95% CI -1.29 to 0.26mm; P=0.19), mechanical complications (RD 0.01, 95% CI -0.02 to 0.04; P=0.40), or biological complications (RD 0.01, 95% CI -0.09 to 0.11; P=0.85) was found between the implant groups. Within the limitations of this study, it is concluded that NDIs are an effective alternative to RDIs due to similar survival rates, MBL, and mechanical and biological complication rates. However, future studies are highly encouraged due to the small number of interventional studies on this topic.
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Affiliation(s)
- R S Cruz
- Department of Dental Materials and Prosthodontics, Aracatuba Dental School, UNESP - Universidade Estadual Paulista, Campus of Aracatuba, Sao Paulo, Brazil.
| | - C A A Lemos
- Department of Dentistry, Federal University of Juiz de Fora (UFJF), Campus Governador Valadares, Governador Valadares, MG, Brazil
| | - V E S de Batista
- Department of Prosthodontics, Presidente Prudente Dental School, University of the West of São Paulo (UNOESTE), Presidente Prudente, Brazil
| | - F C Yogui
- Department of Dental Materials and Prosthodontics, Aracatuba Dental School, UNESP - Universidade Estadual Paulista, Campus of Aracatuba, Sao Paulo, Brazil
| | - H F F Oliveira
- Department of Dental Materials and Prosthodontics, Aracatuba Dental School, UNESP - Universidade Estadual Paulista, Campus of Aracatuba, Sao Paulo, Brazil
| | - F R Verri
- Department of Dental Materials and Prosthodontics, Aracatuba Dental School, UNESP - Universidade Estadual Paulista, Campus of Aracatuba, Sao Paulo, Brazil
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Jiang J, Zhou C, Zhao Y, He F, Wang X. Development and properties of dental Ti-Zr binary alloys. J Mech Behav Biomed Mater 2020; 112:104048. [PMID: 32920276 DOI: 10.1016/j.jmbbm.2020.104048] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 08/17/2020] [Accepted: 08/19/2020] [Indexed: 11/15/2022]
Abstract
In this study, two medium Zr-containing Ti-based alloys with commercially pure titanium as control were systematically investigated to assess their potential biomedical application. After samples subjected to TMP and CR, it was found that the Zr addition significantly affected the microstructure, phase constitutions, mechanical properties and cytocompatibility. The microstructural results showed that increasing Zr concentrations resulted in more refined grains. Furthermore, Zr changed the phase constitution: CR Ti-20Zr was formed by the single α-phase while CR Ti-30Zr alloy was formed by the coexistence of α and deformation-induced FCC phases. The P-type FCC phase was dominant and more prone to occur than the B-type one. The mechanical tests demonstrated that the increasing Zr content led to a simultaneous increase in micro-hardness, strength and plasticity of CR samples due to the combined effects of solution strengthening, work hardening and the FCC phase. The SEM fractography indicated that the brittle fracture of CR Ti-20Zr due to deformation twins and ductile fracture of CR Ti-30Zr because of FCC phase. Furthermore, Ti-Zr alloys presented comparable cytocompatibility to the CP-Ti control based on cell viability, proliferation and intracellular O2- content of MSCs. Specifically, alkaline phosphatase activity in BMSCs were significantly higher for grain refined CR Ti-30Zr. Considering all these results, CR Ti-30Zr alloy exhibited the optimal comprehensive performance to be potential dental materials.
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Affiliation(s)
- Jie Jiang
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Chuan Zhou
- Department of Prosthodontics, The Affiliated Stomatology Hospital, School of Medicine, Zhejiang University, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Hangzhou 310006, Zhejiang, China
| | - Yanwei Zhao
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Fuming He
- Department of Prosthodontics, The Affiliated Stomatology Hospital, School of Medicine, Zhejiang University, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Hangzhou 310006, Zhejiang, China.
| | - Xiaoxiang Wang
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China.
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12
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Barker E, AlQobaly L, Shaikh Z, Franklin K, Moharamzadeh K. Implant Soft-Tissue Attachment Using 3D Oral Mucosal Models-A Pilot Study. Dent J (Basel) 2020; 8:E72. [PMID: 32645887 PMCID: PMC7558259 DOI: 10.3390/dj8030072] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 06/23/2020] [Accepted: 07/03/2020] [Indexed: 01/25/2023] Open
Abstract
PURPOSE The aim of this study was to investigate soft-tissue attachment to different metal, ceramic, and polymer implant surfaces using an inflamed, three-dimensional (3D), tissue-engineered, human oral mucosal model, as well as multiple-endpoint qualitative and quantitative biological approaches. METHODS Normal human oral fibroblasts, OKF6/TERT-2 keratinocytes and THP-1 monocytes were cultured, and full-thickness, 3D oral mucosal models were engineered inside tissue culture inserts. Sand-blasted and acid-etched (SLA) and machined (M) titanium-zirconium alloy (TiZr; commercially known as Roxolid; Institut Straumann AG, Switzerland), ceramic (ZrO2), and polyether ether ketone (PEEK) rods (Ø 4 mm × 8 mm) were inserted into the center of tissue-engineered oral mucosa following a Ø 4mm punch biopsy. Inflammation was simulated with addition of the lipopolysaccharide (LPS) of Escherichia coli (E. coli) and tumor necrosis factor (TNF)-alpha to the culture medium. Implant soft-tissue attachment was assessed using histology, an implant pull-test with PrestoBlue assay, and scanning electron microscopy (SEM). RESULTS Inflamed, full-thickness, 3D human oral mucosal models with inserted implants were successfully engineered and histologically characterized. The implant pull-test with PrestoBlue assay showed higher viability of the tissue that remained attached to the TiZr-SLA surface compared to the other test groups. This difference was statistically significant (p < 0.05). SEM analysis showed evidence of epithelial cell attachment on different implant surfaces. CONCLUSIONS The inflamed, 3D, oral mucosal model has the potential to be used as a suitable in vitro test system for visualization and quantification of implant soft-tissue attachment. The results of our study indicate greater soft tissue attachment to TiZr-SLA compared to TiZr-M, ceramic, and PEEK surfaces.
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Affiliation(s)
| | | | | | | | - Keyvan Moharamzadeh
- School of Clinical Dentistry, University of Sheffield, Western Bank, Sheffield S10 2TN, UK; (E.B.); (L.A.); (Z.S.); (K.F.)
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13
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Souza JGS, Bertolini M, Costa RC, Lima CV, Barão VAR. Proteomic profile of the saliva and plasma protein layer adsorbed on Ti-Zr alloy: the effect of sandblasted and acid-etched surface treatment. BIOFOULING 2020; 36:428-441. [PMID: 32456471 DOI: 10.1080/08927014.2020.1769613] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 05/02/2020] [Accepted: 05/11/2020] [Indexed: 06/11/2023]
Abstract
Titanium-zirconium (Ti-Zr) alloy has been widely used as a biomaterial for implant devices, and it is commonly treated by sandblasting followed by acid etching (SLA) to improve biological responses. Although protein adsorption is the first biological response, the effect of this SLA treatment on the proteomic profile of proteins adsorbed from saliva and blood plasma has not been tested. In this study, the proteomic profile was evaluated by liquid chromatography coupled with tandem mass spectrometry (LC-MS/MS). Streptococcus sanguinis was used to test whether the protein layer affects bacterial adhesion. SLA treatment affected the proteomic profile, showing exclusive proteins adsorbed from saliva (14) and plasma (3). However, both groups exhibited close patterns of intensity for common proteins, molecular functions and biological processes mediated by proteins. Interestingly, Ti-ZrSLA showed higher bacterial adhesion (∼1.9 fold over) for the surface coated with plasma proteins. Therefore, SLA treatment of Ti-Zr alloy changed the proteomic profile, which may affect bacterial adhesion.
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Affiliation(s)
- João Gabriel Silva Souza
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo, Brazil
| | - Martinna Bertolini
- School of Dental Medicine, University of Connecticut (UCONN), Farmington, CT, USA
| | - Raphael Cavalcante Costa
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo, Brazil
| | | | - Valentim Adelino Ricardo Barão
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo, Brazil
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14
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Araki H, Nakano T, Ono S, Yatani H. Three-dimensional finite element analysis of extra short implants focusing on implant designs and materials. Int J Implant Dent 2020; 6:5. [PMID: 31993827 PMCID: PMC6987289 DOI: 10.1186/s40729-019-0202-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 12/11/2019] [Indexed: 12/24/2022] Open
Abstract
AIM When using short implants, fracture of the implant body and bone resorption are a concern because stress concentrates on and around a short implant. The purpose of this research is to investigate the differences in stress distribution between tissue level (TL) and bone level (BL) implant body designs, and between commercially pure titanium (cpTi) and the newer titanium-zirconium (TiZr) alloy in using short implants. MATERIALS AND METHODS Models of TL and BL implants were prepared for three-dimensional finite element analysis. The implants were produced in 10 mm, 8 mm, and 6 mm lengths, and the TL was also produced in a 4-mm length. A static load of 100 N inclined at 30° to the long axis was applied to the buccal side of the model. The largest maximum principal stress value in the cortical bone and the largest von Mises stress value in the implant body were evaluated. RESULTS Stress concentration was observed at the connection part of the implant, especially above the bone in TL and within the bone in BL. In the TL design, tensile stress occurred on the buccal side and compressive stress on the lingual side of the cortical bone. Conversely, in the BL design, tensile stress occurred on the lingual side of the cortical bone. CpTi and TiZr showed a similar stress distribution pattern. The maximum stress values were lower in the TL design than the BL design, and they were lower with TiZr than cpTi for both the cortical bone and implant body. The maximum value tended to increase as the length of the implant body decreased. In addition, the implant body design was more influential than its length, with the TL design showing a stress value similar to the longer BL design. CONCLUSION Using TiZr and a TL design may be more useful mechanically than cpTi and a BL design when the length of the implant body must be shorter because of insufficient vertical bone mass in the mandible.
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Affiliation(s)
- Haruka Araki
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Osaka, 565-0871, Japan
| | - Tamaki Nakano
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Osaka, 565-0871, Japan.
| | - Shinji Ono
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Osaka, 565-0871, Japan
| | - Hirofumi Yatani
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Osaka, 565-0871, Japan
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15
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Cabrera-Domínguez JJ, Castellanos-Cosano L, Torres-Lagares D, Pérez-Fierro M, Machuca-Portillo G. Clinical performance of titanium-zirconium implants with a hydrophilic surface in patients with controlled type 2 diabetes mellitus: 2-year results from a prospective case-control clinical study. Clin Oral Investig 2019; 24:2477-2486. [PMID: 31701247 DOI: 10.1007/s00784-019-03110-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Accepted: 10/01/2019] [Indexed: 12/21/2022]
Abstract
OBJECTIVE Analyze the 2-year clinical performance of single-unit titanium-zirconium (TiZr) alloy narrow-diameter (3.3 mm) dental implants with a hydrophilic surface (Straumann® Roxolid®, SLActive®) in patients with controlled type 2 diabetes mellitus (T2DM), measured using the glycated hemoglobin A (HbA1c) concentration test, compared with results in individuals without T2DM. MATERIAL AND METHODS The studied sample consisted of 28 patients, 14 with T2DM (study group) and 14 without (control group). The plaque index, bleeding on probing, probing depth, clinical attachment level, gingival biotype, and marginal bone loss (MBL) at the site of the implants were assessed. HbA1c levels were assessed in all patients during each checkup. RESULTS Two years after implant placement and prosthetic restoration no implant failures were reported in either group, resulting in 100% survival and success rates in both groups. No statistically significant differences in MBL were found between the control and study groups (p > 0.05). CONCLUSIONS Within the limitations of this study, it can be concluded that reduced-diameter TiZr alloy implants with a hydrophilic surface represent a safe and predictable treatment option for patients with well-controlled T2DM. The clinical performance was comparable with that observed in individuals without T2DM in the medium term. CLINICAL RELEVANCE The narrow implants placed in patients with T2DM with well-controlled glycemia (HbA1c) showed a marginal bone loss and success and survival rates similar to those of the control group without DM2, in the medium term.
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Affiliation(s)
- José J Cabrera-Domínguez
- Master's Program for Special Care in Dentistry, School of Dentistry, University of Seville, Seville, Spain
| | - Lizett Castellanos-Cosano
- Master's Program for Special Care in Dentistry, School of Dentistry, University of Seville, Seville, Spain
| | | | - Manuel Pérez-Fierro
- Master's Program for Special Care in Dentistry, School of Dentistry, University of Seville, Seville, Spain
| | - Guillermo Machuca-Portillo
- Special Care in Dentistry, School of Dentistry, University of Seville, c/ Avicena s/n, 41009, Seville, Spain.
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16
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Alrabiah M. Comparison of survival rate and crestal bone loss of narrow diameter dental implants versus regular dental implants: A systematic review and meta-analysis. ACTA ACUST UNITED AC 2018; 10:e12367. [DOI: 10.1111/jicd.12367] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Accepted: 06/29/2018] [Indexed: 01/11/2023]
Affiliation(s)
- Mohammed Alrabiah
- Department of Prosthetic Dental Science; College of Dentistry; King Saud University; Riyadh Saudi Arabia
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17
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Cordeiro JM, Faverani LP, Grandini CR, Rangel EC, da Cruz NC, Nociti Junior FH, Almeida AB, Vicente FB, Morais BR, Barão VA, Assunção WG. Characterization of chemically treated Ti-Zr system alloys for dental implant application. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 92:849-861. [DOI: 10.1016/j.msec.2018.07.046] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Revised: 06/11/2018] [Accepted: 07/18/2018] [Indexed: 12/21/2022]
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18
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Schiegnitz E, Al‐Nawas B. Narrow‐diameter implants: A systematic review and meta‐analysis. Clin Oral Implants Res 2018; 29 Suppl 16:21-40. [DOI: 10.1111/clr.13272] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/16/2018] [Indexed: 01/19/2023]
Affiliation(s)
- Eik Schiegnitz
- Department of Oral and Maxillofacial Surgery, Plastic Surgery University Medical Centre of the Johannes Gutenberg‐University Mainz Mainz Germany
| | - Bilal Al‐Nawas
- Department of Oral and Maxillofacial Surgery, Plastic Surgery University Medical Centre of the Johannes Gutenberg‐University Mainz Mainz Germany
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19
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Cruz RS, Lemos CAA, Oliveira HFF, de Souza Batista VE, Pellizzer EP, Verri FR. Comparison of the Use of Titanium–Zirconium Alloy and Titanium Alloy in Dental Implants: A Systematic Review and Meta-Analysis. J ORAL IMPLANTOL 2018; 44:305-312. [DOI: 10.1563/aaid-joi-d-17-00233] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The aim of this study was to compare the values of bone-implant contact (BIC) and removal torque (RTQ) reported in different animal studies for titanium–zirconium (TiZr) and titanium (Ti) dental implants. This review has been registered at PROSPERO under number CRD42016047745. We undertook an electronic search for data published up until November 2017 using the PubMed/Medline, Embase, and The Cochrane Library databases. Eligibility criteria included in vivo studies, comparisons between Ti and TiZr implants in the same study, and studies published in English that evaluated BIC and RTQ. After inclusion criteria, 8 studies were assessed for eligibility. Of the 8 studies, 7 analyzed BIC outcome and 3 analyzed RTQ outcome. Among such studies, 6 studies were considered for meta-analysis of quantitative for BIC and 2 studies for RTQ. There was no significant difference for BIC analysis (P = .89; random ration [RR]: −0.21; 95% confidence interval [CI]: −3.14 to 2.72). The heterogeneity of the primary outcome studies was considered low (7.19; P = .21; I2: 30%). However, the RTQ analysis showed different results favoring the TiZr dental implants (P = .001; RR: 23.62; 95%CI: 9.15 to 38.10). Low heterogeneity was observed for RTQ (χ2: 1.25; P = .26; I2: 20%). Within the limitations of this study, there was no difference between TiZr and Ti alloys implants in terms of BIC. However, TiZr implants had higher RTQ than Ti alloys.
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Affiliation(s)
- Ronaldo Silva Cruz
- Department of Dental Materials and Prosthodontics, Aracatuba Dental School, UNESP – Univ Estadual Paulista, Aracatuba Dental School, Sao Paulo, Brazil
| | - Cleidiel Aparecido Araujo Lemos
- Department of Dental Materials and Prosthodontics, Aracatuba Dental School, UNESP – Univ Estadual Paulista, Aracatuba Dental School, Sao Paulo, Brazil
| | - Hiskell Francine Fernandes Oliveira
- Department of Dental Materials and Prosthodontics, Aracatuba Dental School, UNESP – Univ Estadual Paulista, Aracatuba Dental School, Sao Paulo, Brazil
| | - Victor Eduardo de Souza Batista
- Department of Prosthodontics, Presidente Prudente Dental School, University of Western São Paulo - UNOESTE, Presidente Prudente, Brazil
| | - Eduardo Piza Pellizzer
- Department of Dental Materials and Prosthodontics, Aracatuba Dental School, UNESP – Univ Estadual Paulista, Aracatuba Dental School, Sao Paulo, Brazil
| | - Fellippo Ramos Verri
- Department of Dental Materials and Prosthodontics, Aracatuba Dental School, UNESP – Univ Estadual Paulista, Aracatuba Dental School, Sao Paulo, Brazil
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20
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Badran Z, Struillou X, Strube N, Bourdin D, Dard M, Soueidan A, Hoornaert A. Clinical Performance of Narrow-Diameter Titanium-Zirconium Implants: A Systematic Review. IMPLANT DENT 2018; 26:316-323. [PMID: 28114266 DOI: 10.1097/id.0000000000000557] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE Implant-supported prosthetic rehabilitations are in constant augmentation in everyday dental practice. This is largely due to increasing demand from patients for fixed or implant-stabilized prosthesis, although they are frequently reticent to complex preimplant bone augmentation surgeries, whenever bone volume is lacking. Narrow-diameter implants (NDI; ≤3.5 mm) have been developed to offer relatively simple implant solutions in challenging bone-deficient sites. However, concerns regarding their mechanical properties have been raised. Special titanium-zirconium material (Ti-Zr), with superior mechanical resistance, compared with pure titanium alloys has been introduced into the market. The purpose of this systematic review was to determine the available data on clinical performance of Ti-Zr NDI. MATERIALS AND METHODS A literature search of all available clinical articles dealing with Ti-Zr NDI has been carried out. After including only prospective clinical trials, 14 papers were retrieved for thorough reviewing. CONCLUSION Short-term results from preliminary clinical reports are quite promising, although the number of published studies and the follow-up periods are still insufficient to determine the real benefit of this hybrid material compared with titanium, especially when using NDI.
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Affiliation(s)
- Zahi Badran
- *Clinical Instructor, Department of Oral Implantology, Faculty of Dental Surgery, University of Nantes, Nantes, France; Associate Professor, Department of Periodontology, Faculty of Dental surgery, (Inserm U791/UIC 11) CHU de Nantes, France. †Clinical Instructor, Department of Oral Implantology, Faculty of Dental Surgery, University of Nantes, Nantes, France. ‡Adjunct Assistant Professor, Department of Periodontology and Implant Dentistry, College of Dentistry, New York University, New York, NY, and Institut Straumann, Basel, Switzerland. §Professor and Head, Department of Periodontology, Faculty of Dental surgery, (Inserm U791/UIC 11) CHU de Nantes, Nantes, France. ¶Associate Professor and Head, Department of Oral Implantology, Faculty of Dental Surgery, University of Nantes, Nantes, France
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21
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de Souza AB, Sukekava F, Tolentino L, César-Neto JB, Garcez-Filho J, Araújo MG. Narrow- and regular-diameter implants in the posterior region of the jaws to support single crowns: A 3-year split-mouth randomized clinical trial. Clin Oral Implants Res 2017; 29:100-107. [DOI: 10.1111/clr.13076] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/07/2017] [Indexed: 12/20/2022]
Affiliation(s)
| | - Flávia Sukekava
- Division of Periodontics; School of Dentistry; University of São Paulo; São Paulo Brazil
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22
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Iegami CM, Uehara PN, Sesma N, Pannuti CM, Tortamano Neto P, Mukai MK. Survival rate of titanium-zirconium narrow diameter dental implants versus commercially pure titanium narrow diameter dental implants: A systematic review. Clin Implant Dent Relat Res 2017; 19:1015-1022. [DOI: 10.1111/cid.12527] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Revised: 07/26/2017] [Accepted: 07/31/2017] [Indexed: 12/11/2022]
Affiliation(s)
- Carolina Mayumi Iegami
- Department of Prosthodontics; University of Sao Paulo, School of Dentistry, Sao Paulo; Brazil
| | | | - Newton Sesma
- Department of Prosthodontics; University of Sao Paulo, School of Dentistry, Sao Paulo; Brazil
| | | | - Pedro Tortamano Neto
- Department of Prosthodontics; University of Sao Paulo, School of Dentistry, Sao Paulo; Brazil
| | - Márcio Katsuyoshi Mukai
- Department of Prosthodontics; University of Sao Paulo, School of Dentistry, Sao Paulo; Brazil
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23
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Is there scientific evidence favoring the substitution of commercially pure titanium with titanium alloys for the manufacture of dental implants? MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 71:1201-1215. [DOI: 10.1016/j.msec.2016.10.025] [Citation(s) in RCA: 114] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2016] [Revised: 10/07/2016] [Accepted: 10/16/2016] [Indexed: 11/22/2022]
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Abstract
STATEMENT OF PROBLEM Evidence is limited on the efficacy of narrow-diameter implants (NDIs) in the posterior jaw. PURPOSE The purpose of this systematic review was to assess the survival of NDIs and provide guidelines for their safe use. MATERIALS AND METHODS Electronic search of the English-language literature enriched by hand search to identify suitable publications was made. Only peer-reviewed clinical studies published from January 1990 through March 2014 were included. RESULTS Seventeen studies with a total of 1644 implants met the inclusion criteria, with an observation period from 1 up to 12 years. The mean survival rate of 98.6% was reported. Technical and other complications were observed. CONCLUSION Short-term clinical data suggest that NDIs may serve in the posterior jaw as an alternative to standard-diameter implants. However, certain clinical conditions must be observed to assure long-term success.
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25
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Prasad S, Hambrook C, Reigle E, Sherman K, Bansal N, Hefti A. Implant Treatment in the Predoctoral Clinic: A Retrospective Database Study of 1091 Patients. J Prosthodont 2016; 26:559-567. [DOI: 10.1111/jopr.12570] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/16/2016] [Indexed: 01/08/2023] Open
Affiliation(s)
- Soni Prasad
- Department of General Dental Science; Marquette University School of Dentistry; Milwaukee WI
| | - Christopher Hambrook
- Department of Oral and Maxillofacial Surgery; University of Florida College of Dentistry; Gainesville FL
| | - Eric Reigle
- Access Community Health Centers; Dodgeville WI
| | - Katherine Sherman
- Department of Mathematics, Statistics, and Computer Science; Marquette University School of Dentistry; Milwaukee WI
| | - Naveen Bansal
- Department of Mathematics, Statistics, and Computer Science; Marquette University School of Dentistry; Milwaukee WI
| | - Arthur Hefti
- Division of Periodontology; Ohio State University College of Dentistry; Columbus OH
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26
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Akimoto T, Ueno T, Tsutsumi Y, Doi H, Hanawa T, Wakabayashi N. Evaluation of corrosion resistance of implant-use Ti-Zr binary alloys with a range of compositions. J Biomed Mater Res B Appl Biomater 2016; 106:73-79. [PMID: 27860159 DOI: 10.1002/jbm.b.33811] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Revised: 10/05/2016] [Accepted: 10/27/2016] [Indexed: 11/12/2022]
Abstract
Although titanium-zirconium (Ti-Zr) alloy has been adopted for clinical applications, the ideal proportion of Zr in the alloy has not been identified. In this study, we investigated the biocompatibility of Ti-Zr alloy by evaluating its corrosion resistance to better understand whether there is an optimal range or value of Zr proportion in the alloy. We prepared pure Ti, Ti-30Zr, Ti-50Zr, Ti-70Zr, and pure Zr (mol% of Zr) samples and subjected them to anodic polarization and immersion tests in a lactic acid + sodium chloride (NaCl) solution and artificial saliva. We observed pitting corrosion in the Ti-70Zr and Zr after exposure to both solutions. After the immersion test, we found that pure Ti exhibited the greatest degree of dissolution in the lactic acid + NaCl solution, with the addition of Zr dramatically reducing Ti ion dissolution, with the reduction ultimately exceeding 90% in the case of the Ti-30Zr. Hence, although the localized corrosion resistance under severe conditions was compromised when the Zr content was more than 70%, metal ion release reduced owing to Zr addition and the corresponding formation of a stable passive layer. The results suggest that Ti-30Zr or a Zr proportion of less than 50% would offer an ideal level of corrosion resistance for clinical applications. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 73-79, 2018.
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Affiliation(s)
- Teisuke Akimoto
- Removable Partial Prosthodontics, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8549, Japan
| | - Takeshi Ueno
- Removable Partial Prosthodontics, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8549, Japan
| | - Yusuke Tsutsumi
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo, 101-0062, Japan.,Graduate School of Engineering, The University of Tokyo, Bunyko, Tokyo, 113-8656, Japan
| | - Hisashi Doi
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo, 101-0062, Japan
| | - Takao Hanawa
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo, 101-0062, Japan
| | - Noriyuki Wakabayashi
- Removable Partial Prosthodontics, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8549, Japan
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27
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Marković A, Đinić A, Calvo Guirado JL, Tahmaseb A, Šćepanović M, Janjić B. Randomized clinical study of the peri-implant healing to hydrophilic and hydrophobic implant surfaces in patients receiving anticoagulants. Clin Oral Implants Res 2016; 28:1241-1247. [DOI: 10.1111/clr.12948] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/15/2016] [Indexed: 12/20/2022]
Affiliation(s)
- Aleksa Marković
- Department of Oral Surgery; School of Dental Medicine; University of Belgrade; Belgrade Serbia
| | - Ana Đinić
- Department of Oral Surgery; School of Dental Medicine; University of Belgrade; Belgrade Serbia
| | - José Luis Calvo Guirado
- Department of Research; International Dentistry Research Cathedra; UCAM Universidad Catolica San Antonio de Murcia; Murcia Spain
| | - Ali Tahmaseb
- Department of Oral Implantology and Prosthetic Dentistry; Academic Center for Dentistry Amsterdam (ACTA); Move Research Institute; Amsterdam The Netherlands
| | - Miodrag Šćepanović
- Department of Prosthodontics; School of Dental Medicine; University of Belgrade; Belgrade Serbia
| | - Bojan Janjić
- Department of Oral Surgery; School of Dental Medicine; University of Belgrade; Belgrade Serbia
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28
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Allen PF, Lee S, Brady P. Clinical and subjective evaluation of implants in patients with hypodontia: a two-year observation study. Clin Oral Implants Res 2016; 28:1258-1262. [DOI: 10.1111/clr.12951] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/15/2016] [Indexed: 11/30/2022]
Affiliation(s)
- P. Finbarr Allen
- Cork University Dental School and Hospital; University College Cork; Cork Ireland
- Faculty of Dentistry; National University of Singapore; Singapore
| | - Samuel Lee
- Harvard School of Dental Medicine; Boston MA USA
| | - Paul Brady
- Cork University Dental School and Hospital; University College Cork; Cork Ireland
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Altuna P, Lucas-Taulé E, Gargallo-Albiol J, Figueras-Álvarez O, Hernández-Alfaro F, Nart J. Clinical evidence on titanium–zirconium dental implants: a systematic review and meta-analysis. Int J Oral Maxillofac Surg 2016; 45:842-50. [DOI: 10.1016/j.ijom.2016.01.004] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Revised: 10/21/2015] [Accepted: 01/11/2016] [Indexed: 11/15/2022]
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Moráguez O, Vailati F, Grütter L, Sailer I, Belser UC. Four-unit fixed dental prostheses replacing the maxillary incisors supported by two narrow-diameter implants - a five-year case series. Clin Oral Implants Res 2016; 28:887-892. [PMID: 27325154 DOI: 10.1111/clr.12895] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/07/2016] [Indexed: 11/29/2022]
Abstract
OBJECTIVES (1) To determine the survival rate of 10 four-unit fixed dental prostheses (FDPs) replacing the four maxillary incisors, supported by 20 narrow-diameter implants (NDIs), (2) to assess the incidence of mechanical and biological complications, and (3) to evaluate bone level changes longitudinally after final FDP insertion. MATERIALS AND METHODS Ten patients (six women, four men), mean age 49.4 ± 12.6 years, were treated with a four-unit anterior maxillary FDP (six screw-retained; four cemented). Biological parameters, eventual technical complications, radiographic measurements, and study casts were assessed at 1 (baseline), 3, and 5 years after implant placement. A multilevel logistic regression test was performed on clinical parameters and bone level changes (significance level P < 0.05). RESULTS The 5-year implant and FDP survival rate was 100%. Mean modified plaque index (mPI) values were 0.03 and 0.02 at 3 and 5 years, significantly lower when compared to mPI (0.11 ± 0.31) at 1 year. Mean modified sulcus bleeding index (mSBI) was 0.08, 0.08, and 0.15 over time. Probing depth (PD) values were 1.57, 1.64, and 2.03 mm. Statistically significant differences were found between 1 vs. 5 year (P = 0.0003) and 3 vs. 5 year (P = 0.001). Keratinized mucosa (3.65 mm) remained stable during observation period. DIB mean values were 2.01 ± 0.34, 2.13 ± 0.13, and 2.17 ± 0.38 mm. Patient satisfaction based on visual analog scale revealed favorable fulfillment of overall treatment and esthetic expectations. CONCLUSIONS Two NDIs supporting a four-unit FDP to replace the four missing maxillary incisors may be considered a predictable treatment modality.
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Affiliation(s)
- Osvaldo Moráguez
- Division of Fixed Prosthodontics and Biomaterials, University Clinics of Dental Medicine, University of Geneva, Geneva, Switzerland
| | - Francesca Vailati
- Division of Fixed Prosthodontics and Biomaterials, University Clinics of Dental Medicine, University of Geneva, Geneva, Switzerland
| | - Linda Grütter
- Division of Fixed Prosthodontics and Biomaterials, University Clinics of Dental Medicine, University of Geneva, Geneva, Switzerland
| | - Irena Sailer
- Division of Fixed Prosthodontics and Biomaterials, University Clinics of Dental Medicine, University of Geneva, Geneva, Switzerland
| | - Urs C Belser
- Division of Fixed Prosthodontics and Biomaterials, University Clinics of Dental Medicine, University of Geneva, Geneva, Switzerland
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Lotz EM, Olivares-Navarrete R, Hyzy SL, Berner S, Schwartz Z, Boyan BD. Comparable responses of osteoblast lineage cells to microstructured hydrophilic titanium-zirconium and microstructured hydrophilic titanium. Clin Oral Implants Res 2016; 28:e51-e59. [DOI: 10.1111/clr.12855] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/03/2016] [Indexed: 01/15/2023]
Affiliation(s)
- Ethan M. Lotz
- Department of Biomedical Engineering; School of Engineering; Virginia Commonwealth University; Richmond VA USA
| | - Rene Olivares-Navarrete
- Department of Biomedical Engineering; School of Engineering; Virginia Commonwealth University; Richmond VA USA
| | - Sharon L. Hyzy
- Department of Biomedical Engineering; School of Engineering; Virginia Commonwealth University; Richmond VA USA
| | | | - Zvi Schwartz
- Department of Biomedical Engineering; School of Engineering; Virginia Commonwealth University; Richmond VA USA
- Department of Periodontics; University of Texas Health Science Center at San Antonio; San Antonio TX USA
| | - Barbara D. Boyan
- Department of Biomedical Engineering; School of Engineering; Virginia Commonwealth University; Richmond VA USA
- Wallace H. Coulter Department of Biomedical Engineering; Georgia Institute of Technology; Atlanta GA USA
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The Use of Narrow Diameter Implants in the Molar Area. Int J Dent 2016; 2016:8253090. [PMID: 27293436 PMCID: PMC4879234 DOI: 10.1155/2016/8253090] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Revised: 04/06/2016] [Accepted: 04/06/2016] [Indexed: 02/08/2023] Open
Abstract
Implant rehabilitations in the posterior jaw are influenced by many factors such as the condition of the remaining teeth, the force factors related to the patient, the quality of the bone, the maintenance of the hygiene, the limited bone height, the type and extent of edentulism, and the nature of the opposing arch. The gold standard is to place a regular diameter implant (>3.7 mm) or a wide one to replace every missing molar. Unfortunately, due to horizontal bone resorption, this option is not possible without lateral bone augmentation. In this situation, narrow diameter implant (NDI < 3.5 mm) could be the alternative to lateral bone augmentation procedures. This paper presents a clinical study where NDIs were used for the replacement of missing molars. They were followed up to 11 years. Special considerations were observed and many parameters were evaluated. NDI could be used to replace missing molar in case of moderate horizontal bone resorption if strict guidelines are respected. Yet, future controlled prospective clinical trials are required to admit their use as scientific evidence.
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Zembic A, Tahmaseb A, Jung RE, Wismeijer D. One-year results of maxillary overdentures supported by 2 titanium-zirconium implants - implant survival rates and radiographic outcomes. Clin Oral Implants Res 2016; 28:e60-e67. [DOI: 10.1111/clr.12863] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/11/2016] [Indexed: 11/25/2022]
Affiliation(s)
- Anja Zembic
- Department of Oral Implantology and Prosthetic Dentistry; Academic Center for Dentistry Amsterdam (ACTA); Move Research Institute; Amsterdam The Netherlands
- Clinic of Fixed and Removable Prosthodontics and Dental Material Science; University of Zurich; Zurich Switzerland
| | - Ali Tahmaseb
- Department of Oral Implantology and Prosthetic Dentistry; Academic Center for Dentistry Amsterdam (ACTA); Move Research Institute; Amsterdam The Netherlands
| | - Ronald E. Jung
- Clinic of Fixed and Removable Prosthodontics and Dental Material Science; University of Zurich; Zurich Switzerland
| | - Daniel Wismeijer
- Department of Oral Implantology and Prosthetic Dentistry; Academic Center for Dentistry Amsterdam (ACTA); Move Research Institute; Amsterdam The Netherlands
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Sharma A, McQuillan AJ, Shibata Y, Sharma LA, Waddell JN, Duncan WJ. Histomorphometric and histologic evaluation of titanium-zirconium (aTiZr) implants with anodized surfaces. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2016; 27:86. [PMID: 26970768 DOI: 10.1007/s10856-016-5695-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2015] [Accepted: 02/29/2016] [Indexed: 06/05/2023]
Abstract
The choice of implant surface has a significant influence on osseointegration. Modification of TiZr surface by anodization is reported to have the potential to modulate the osteoblast cell behaviour favouring more rapid bone formation. The aim of this study is to investigate the effect of anodizing the surface of TiZr discs with respect to osseointegration after four weeks implantation in sheep femurs. Titanium (Ti) and TiZr discs were anodized in an electrolyte containing DL-α-glycerophosphate and calcium acetate at 300 V. The surface characteristics were analyzed by scanning electron microscopy, electron dispersive spectroscopy, atomic force microscopy and goniometry. Forty implant discs with thickness of 1.5 and 10 mm diameter (10 of each-titanium, titanium-zirconium, anodized titanium and anodized titanium-zirconium) were placed in the femoral condyles of 10 sheep. Histomorphometric and histologic analysis were performed 4 weeks after implantation. The anodized implants displayed hydrophilic, porous, nano-to-micrometer scale roughened surfaces. Energy dispersive spectroscopy analysis revealed calcium and phosphorous incorporation into the surface of both titanium and titanium-zirconium after anodization. Histologically there was new bone apposition on all implanted discs, slightly more pronounced on anodised discs. The percentage bone-to-implant contact measurements of anodized implants were higher than machined/unmodified implants but there was no significant difference between the two groups with anodized surfaces (P > 0.05, n = 10). The present histomorphometric and histological findings confirm that surface modification of titanium-zirconium by anodization is similar to anodised titanium enhances early osseointegration compared to machined implant surfaces.
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Affiliation(s)
- Ajay Sharma
- Faculty of Dentistry, Sir John Walsh Research Institute, University of Otago, 310 Great King Street, Dunedin, 9016, New Zealand.
| | | | - Yo Shibata
- Division of Biomaterials and Engineering, Department of Conservative Dentistry, Showa University School of Dentistry, Tokyo, Japan
| | - Lavanya A Sharma
- Otago School of Medical Sciences, University of Otago, Dunedin, New Zealand
| | - John Neil Waddell
- Faculty of Dentistry, Sir John Walsh Research Institute, University of Otago, 310 Great King Street, Dunedin, 9016, New Zealand
| | - Warwick John Duncan
- Faculty of Dentistry, Sir John Walsh Research Institute, University of Otago, 310 Great King Street, Dunedin, 9016, New Zealand
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Yeo GC, Santos M, Kondyurin A, Liskova J, Weiss AS, Bilek MMM. Plasma-Activated Tropoelastin Functionalization of Zirconium for Improved Bone Cell Response. ACS Biomater Sci Eng 2016; 2:662-676. [PMID: 33465866 DOI: 10.1021/acsbiomaterials.6b00049] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The mechanical strength, durability, corrosion resistance, and biocompatibility of metal alloys based on zirconium (Zr) and titanium (Ti) make them desirable materials for orthopedic implants. However, as bioinert metals, they do not actively promote bone formation and integration. Here we report a plasma coating process for improving integration of such metal implants with local bone tissue. The coating is a stable carbon-based plasma polymer layer that increased surface wettability by 28%, improved surface elasticity to the range exhibited by natural bone, and additionally covalently bound the extracellular matrix protein, tropoelastin, in an active conformation. The thus biofunctionalized material was significantly more resistant to medical-grade sterilization by steam, autoclaving or gamma-ray irradiation, retaining >60% of the adhered tropoelastin molecules and preserving full bioactivity. The interface of the coating and metal was robust so as to resist delamination during surgical insertion and in vivo deployment, and the plasma process employed was utilized to also coat the complex 3D geometries typical of orthopedic implants. Osteoblast-like osteosarcoma cells cultured on the biofunctionalized Zr surface exhibited a significant 30% increase in adhesion and up to 70% improvement in proliferation. Cells on these materials also showed significant early stage up-regulation of bone marker expression (alkaline phosphatase, 1.8 fold; osteocalcin, 1.4 fold), and sustained up-regulation of these genes (alkaline phosphatase, 1.3 fold; osteocalcin, 1.2 fold) in osteogenic conditions. In addition, alkaline phosphatase production significantly increased (2-fold) on the functionalized surfaces, whereas bone mineral deposition increased by 30% above background levels compared to bare Zr. These findings have the potential to be readily translated to the development of improved Zr and Ti-based implants for accelerated bone repair.
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Affiliation(s)
| | - Miguel Santos
- The Heart Research Institute, 7 Eliza Street, Newtown, New South Wales 2050, Australia
| | | | - Jana Liskova
- Institute of Physiology, Academy of Sciences of the Czech Republic, Národní 1009/3, Prague 14220, Czech Republic
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Altinci P, Can G, Gunes O, Ozturk C, Eren H. Stability and Marginal Bone Level Changes of SLActive Titanium-Zirconium Implants Placed with Flapless Surgery: A Prospective Pilot Study. Clin Implant Dent Relat Res 2016; 18:1193-1199. [DOI: 10.1111/cid.12392] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Revised: 01/05/2016] [Accepted: 01/09/2016] [Indexed: 11/29/2022]
Affiliation(s)
- Pinar Altinci
- Research Assistant, Department of Prosthodontics, Faculty of Dentistry, Ankara University; Ankara Turkey
| | - Gulsen Can
- Professor, Department of Prosthodontics, Faculty of Dentistry, Ankara University; Ankara Turkey
| | - Onur Gunes
- Research Assistant, Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Ankara University; Ankara Turkey
| | - Caner Ozturk
- Research Assistant, Department of Prosthodontics, Faculty of Dentistry, Ankara University; Ankara Turkey
| | - Hakan Eren
- Research Assistant, Department of Dentomaxillofacial Radiology, Faculty of Dentistry, Ankara University; Ankara Turkey
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37
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Wen B, Chen J, Dard M, Cai Z. The Performance of Titanium-Zirconium Implants in the Elderly: A Biomechanical Comparative Study in the Minipig. Clin Implant Dent Relat Res 2016; 18:1200-1209. [PMID: 26834004 DOI: 10.1111/cid.12389] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Accepted: 12/03/2015] [Indexed: 12/24/2022]
Affiliation(s)
- Bo Wen
- Professor, Division of Implant Dentistry, Department of Oral & Maxillofacial Surgery, Nanjing Stomatology Hospital; Medical School of Nanjing University; Nanjing China
| | - Jiang Chen
- professor, Department of Implant Dentistry, School and Hospital of Stomatology; Fujian Medical University; Fuzhou China
| | - Michel Dard
- head and director, Preclinical Research; Institut Straumann AG; Basel Switzerland
- professor, Department of Periodontology and Implant Dentistry; College of Dentistry, New York University; New York NY USA
| | - Zhiyu Cai
- professor, Department of Implant Dentistry, School and Hospital of Stomatology; Fujian Medical University; Fuzhou China
- associate professor, Department of Stomatology; Fujian Medical University Union Hospital; Fuzhou China
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38
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Ioannidis A, Gallucci GO, Jung RE, Borzangy S, Hämmerle CHF, Benic GI. Titanium-zirconium narrow-diameter versus
titanium regular-diameter implants for anterior and premolar single crowns: 3-year results of a randomized controlled clinical study. J Clin Periodontol 2015; 42:1060-70. [DOI: 10.1111/jcpe.12468] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/26/2015] [Indexed: 10/23/2022]
Affiliation(s)
- Alexis Ioannidis
- Clinic of Fixed and Removable Prosthodontics and Dental Material Science; Center of Dental Medicine; University of Zurich; Zurich Switzerland
| | - German O. Gallucci
- Department of Restorative Dentistry and Biomaterials Sciences; Harvard School of Dental Medicine; Boston MA USA
| | - Ronald E. Jung
- Clinic of Fixed and Removable Prosthodontics and Dental Material Science; Center of Dental Medicine; University of Zurich; Zurich Switzerland
| | - Sary Borzangy
- Department of Restorative Dentistry and Biomaterials Sciences; Harvard School of Dental Medicine; Boston MA USA
- Department of Substitutive Dental Sciences; College of Dentistry; Taibah University; Al Madinah Al Munawwarah Kingdom of Saudi Arabia
| | - Christoph H. F. Hämmerle
- Clinic of Fixed and Removable Prosthodontics and Dental Material Science; Center of Dental Medicine; University of Zurich; Zurich Switzerland
| | - Goran I. Benic
- Clinic of Fixed and Removable Prosthodontics and Dental Material Science; Center of Dental Medicine; University of Zurich; Zurich Switzerland
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39
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Ebler S, Ioannidis A, Jung RE, Hämmerle CHF, Thoma DS. Prospective randomized controlled clinical study comparing two types of two-piece dental implants supporting fixed reconstructions - results at 1 year of loading. Clin Oral Implants Res 2015; 27:1169-77. [DOI: 10.1111/clr.12721] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/18/2015] [Indexed: 11/28/2022]
Affiliation(s)
- Sabine Ebler
- Clinic of Fixed and Removable Prosthodontics and Dental Material Science; Center of Dental Medicine; University of Zurich; Zurich Switzerland
| | - Alexis Ioannidis
- Clinic of Fixed and Removable Prosthodontics and Dental Material Science; Center of Dental Medicine; University of Zurich; Zurich Switzerland
| | - Ronald E. Jung
- Clinic of Fixed and Removable Prosthodontics and Dental Material Science; Center of Dental Medicine; University of Zurich; Zurich Switzerland
| | - Christoph H. F. Hämmerle
- Clinic of Fixed and Removable Prosthodontics and Dental Material Science; Center of Dental Medicine; University of Zurich; Zurich Switzerland
| | - Daniel S. Thoma
- Clinic of Fixed and Removable Prosthodontics and Dental Material Science; Center of Dental Medicine; University of Zurich; Zurich Switzerland
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40
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The effects of pulsed electromagnetic field (PEMF) on osteoblast-like cells cultured on titanium and titanium-zirconium surfaces. J Craniofac Surg 2015; 24:2127-34. [PMID: 24220422 DOI: 10.1097/scs.0b013e31829a7ebc] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Commercially pure Ti, together with Ti Ni, Ti-6Al-4V, and Ti-6Al-7Nb alloys, are among the materials currently being used for this purpose. Titanium-zirconium (TiZr) has been developed that allows SLActive surface modification and that has comparable or better mechanical strength and improved biocompatibility compared with existing Ti alloys. Furthermore, approaches have targeted making the implant surface more hydrophilic, as with the Straumann SLActive surface, a modification of the SLA surface. PURPOSE The aim of this study is to evaluate the effects of pulsed electromagnetic field (PEMF) to the behavior of neonatal rat calvarial osteoblast-like cells cultured on commercially pure titanium (cpTi) and titanium-zirconium alloy (TiZr) discs with hydrophilic surface properties. MATERIALS AND METHODS Osteoblast cells were cultured on titanium and TiZr discs, and PEMF was applied. Cell proliferation rates, cell numbers, cell viability rates, alkaline phosphatase, and midkine (MK) levels were measured at 24 and 72 hours. RESULTS At 24 hours, the number of cells was significantly higher in the TiZr group. At 72 hours, TiZr had a significantly higher number of cells when compared to SLActive, SLActive + PEMF, and machine surface + PEMF groups. At 24 hours, cell proliferation was significantly higher in the TiZr group than SLActive and TiZr + PEMF group. At 72 hours, TiZr group had higher proliferation rate than machine surface and TiZr + PEMF. Cell proliferation in the machine surface group was lower than both SLActive + PEMF and machine surface + PEMF. MK levels of PEMF-treated groups were lower than untreated groups for 72 hours. CONCLUSIONS Our findings conclude that TiZr surfaces are similar to cpTi surfaces in terms of biocompatibility. However, PEMF application has a higher stimulative effect on cells cultured on cpTi surfaces when compared to TiZr.
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41
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Sharma A, McQuillan AJ, Sharma LA, Waddell JN, Shibata Y, Duncan WJ. Spark anodization of titanium-zirconium alloy: surface characterization and bioactivity assessment. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2015; 26:221. [PMID: 26260697 DOI: 10.1007/s10856-015-5555-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2015] [Accepted: 08/04/2015] [Indexed: 06/04/2023]
Abstract
Titanium (Ti) and its alloys have been popularly used as implant biomaterial for decades. Recently, titanium-zirconium (TiZr) alloy has been developed as an alternative implant material with improved strength in load bearing areas. Surface modification is one of the key factors to alter the surface properties to hasten osseointegration. Spark anodic oxidation (anodization) is one such method that is reported to enhance the bone formation around implants. This study aims to anodize TiZr and study its surface characteristics and cytocompatibility by cell culture experiments using osteoblast-like cells. Titanium (Ti) and TiZr discs were anodized in an electrolyte containing DL-α-glycerophosphate and calcium acetate (CA) at 300 V. The surface characteristics were analyzed by scanning electron microscopy, electron dispersive spectroscopy, X-ray diffraction (XRD), atomic force microscopy and goniometry. Using osteoblast-like cells viability, proliferation, differentiation and mineralization was assessed. The anodized surfaces demonstrated increased oxygen, entrapped calcium and phosphorous from the electrolyte used. XRD analysis confirmed the presence of anatase in the oxide layer. Average roughness increased and there was a significant decrease in contact angle (P < 0.01) following anodization. The anodized TiZr (aTiZr) surfaces were more nano-porous compared to anodized Ti (aTi). No significant difference was found in the viability of cells, but after 24 h the total number of cells was significantly higher (P < 0.01). Proliferation, alkaline phosphatase activity and calcium deposits were significantly higher on anodized surfaces compared to machined surfaces (P < 0.05, ANOVA). Anodization of TiZr resulted in a more nanoporous and hydrophilic surface than aTi, and osteoblast biocompatibility appeared comparable to aTi.
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Affiliation(s)
- Ajay Sharma
- Department of Oral Sciences, Faculty of Dentistry, Sir John Walsh Research Institute, University of Otago, Walsh Building, 310 Great King Street, Dunedin, 9016, New Zealand,
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42
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Numerical assessment of bone remodeling around conventionally and early loaded titanium and titanium–zirconium alloy dental implants. Med Biol Eng Comput 2015; 53:453-62. [DOI: 10.1007/s11517-015-1256-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2014] [Accepted: 02/18/2015] [Indexed: 10/23/2022]
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43
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Tolentino L, Sukekava F, Garcez-Filho J, Tormena M, Lima LA, Araújo MG. One-year follow-up of titanium/zirconium alloy X commercially pure titanium narrow-diameter implants placed in the molar region of the mandible: a randomized controlled trial. Clin Oral Implants Res 2015; 27:393-8. [PMID: 25692479 DOI: 10.1111/clr.12561] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/15/2015] [Indexed: 12/20/2022]
Abstract
OBJECTIVE To analyze marginal bone loss (MBL) and clinical parameters around narrow-diameter implants (NDIs - 3.3 mm) made of titanium/zirconium alloy (TiZr) in comparison with commercially pure titanium (cpTi) installed in the molar region of the mandible after 1 year in function. MATERIALS AND METHODS Ten patients participated in the study. A TiZr and a cpTi NDI were randomly installed in contralateral molar sites of the mandible of each patient in a split-mouth design. Eight weeks after healing, all metal-ceramic single crowns were adapted to the implants and patients were enrolled in a plaque control program. MBL at the mesial and distal aspects of the implants were evaluated by comparing periapical radiographs taken immediately after prosthesis installation (T1) and 1 year after loading (T2). Clinical probing depth, bleeding on probing, suppuration, visible plaque and implant mobility were evaluated to determine implant success and survival rates. RESULTS Mean MBL at the interproximal aspects of TiZr implant sites was 0.32 ± 0.27 mm, while at cpTi implant sites mean MBL was 0.35 ± 0.24 mm (P = 0.60). Both TiZr and cpTi NDIs presented 100% implant survival and success rates, with no significant differences in the clinical parameters studied (P > 0.05). CONCLUSION TiZr and cpTi NDIs presented similar outcomes after 1 year in function in the molar region of the mandible. The results suggest that TiZr and cpTi NDIs may be equally used to support single crowns in the posterior area of the mouth. However, further studies with longer follow-up periods are necessary to confirm these findings.
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Affiliation(s)
- L Tolentino
- Division of Periodontics, School of Dentistry, University of São Paulo, São Paulo, Brazil
| | - F Sukekava
- Division of Periodontics, School of Dentistry, University of São Paulo, São Paulo, Brazil
| | | | - M Tormena
- Department of Dentistry, State University of Maringá, Maringá, Brazil
| | - L A Lima
- Division of Periodontics, School of Dentistry, University of São Paulo, São Paulo, Brazil
| | - M G Araújo
- Department of Dentistry, State University of Maringá, Maringá, Brazil
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Kopf BS, Ruch S, Berner S, Spencer ND, Maniura-Weber K. The role of nanostructures and hydrophilicity in osseointegration:In-vitroprotein-adsorption and blood-interaction studies. J Biomed Mater Res A 2015; 103:2661-72. [DOI: 10.1002/jbm.a.35401] [Citation(s) in RCA: 90] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Revised: 12/11/2014] [Accepted: 01/20/2015] [Indexed: 01/15/2023]
Affiliation(s)
- Brigitte S. Kopf
- Department Materials meet Life; Laboratory for Materials Biology Interactions, Empa, Swiss Federal Laboratories for Materials Science and Technology; St. Gallen Switzerland
| | - Sylvie Ruch
- Institut Straumann AG; Basel Switzerland
- Department of Materials; Laboratory for Surface Science and Technology; ETH Zurich Switzerland
| | | | - Nicholas D. Spencer
- Department of Materials; Laboratory for Surface Science and Technology; ETH Zurich Switzerland
| | - Katharina Maniura-Weber
- Department Materials meet Life; Laboratory for Materials Biology Interactions, Empa, Swiss Federal Laboratories for Materials Science and Technology; St. Gallen Switzerland
- Department Materials meet Life; Laboratory for Biointerfaces, Empa, Swiss Federal Laboratories for Materials Science and Technology; St. Gallen Switzerland
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45
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An In Vitro Biomechanical Evaluation of a New Commercial Titanium-Zirconium Alloy Dental Implant. IMPLANT DENT 2014; 23:534-8. [DOI: 10.1097/id.0000000000000108] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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46
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Sancho-Puchades M, Hämmerle CHF, Benic GI. In vitro assessment of artifacts induced by titanium, titanium-zirconium and zirconium dioxide implants in cone-beam computed tomography. Clin Oral Implants Res 2014; 26:1222-8. [PMID: 25040484 DOI: 10.1111/clr.12438] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/17/2014] [Indexed: 11/27/2022]
Abstract
AIM The aim of this study was to test whether or not the intensity of artifacts around implants in cone-beam computed tomography (CBCT) differs between titanium, titanium-zirconium and zirconium dioxide implants. MATERIALS AND METHODS Twenty models of a human mandible, each containing one implant in the single-tooth gap position 45, were cast in dental stone. Five test models were produced for each of the following implant types: titanium 4.1 mm diameter (Ti4.1 ), titanium 3.3 mm diameter (Ti3.3 ), titanium-zirconium 3.3 mm diameter (TiZr3.3 ) and zirconium dioxide 3.5-4.5 mm diameter (ZrO3.5-4.5 ) implants. For control purposes, three models without implants were produced. Each model was scanned using a CBCT device. Gray values (GV) were recorded at eight circumferential positions around the implants at 0.5 mm, 1 mm and 2 mm from the implant surface (GVT est ). GV were assessed in the corresponding volumes of interest (VOI) in the control models without implants (GVC ontrol ). Differences of gray values (ΔGV) between GVT est and GVC ontrol were calculated as percentages. One-way ANOVA and post hoc tests were applied to detect differences between implant types. RESULTS Mean ΔGV for ZrO3.5-4.5 presented the highest absolute values, generally followed by TiZr3.3 , Ti4.1 and Ti3.3 implants. The differences of ΔGV between ZrO3.5-4.5 and the remaining groups were statistically significant in the majority of the VOI (P ≤ 0.0167). ΔGV for TiZr3.3 , Ti4.1 and Ti3.3 implants did not differ significantly in the most VOI. For all implant types, ΔGV showed positive values buccally, mesio-buccally, lingually and disto-lingually, whereas negative values were detected mesially and distally. CONCLUSIONS Zirconium dioxide implants generate significantly more artifacts as compared to titanium and titanium-zirconium implants. The intensity of artifacts around zirconium dioxide implants exhibited in average the threefold in comparison with titanium implants.
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Affiliation(s)
- Manuel Sancho-Puchades
- Clinic for Fixed and Removable Prosthodontics and Material Science, Center for Dental and Oral Medicine and Cranio-Maxillofacial Surgery, University of Zürich, Zürich, Switzerland
| | - Christoph H F Hämmerle
- Clinic for Fixed and Removable Prosthodontics and Material Science, Center for Dental and Oral Medicine and Cranio-Maxillofacial Surgery, University of Zürich, Zürich, Switzerland
| | - Goran I Benic
- Clinic for Fixed and Removable Prosthodontics and Material Science, Center for Dental and Oral Medicine and Cranio-Maxillofacial Surgery, University of Zürich, Zürich, Switzerland
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47
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El-Sheikh AM, Shihabuddin OF. Clinical and radiographic evaluation of narrow-diameter titanium-zirconium implants in unilateral atrophic mandibular distal extensions: a 1-year pilot study. J Contemp Dent Pract 2014; 15:417-422. [PMID: 25576106 DOI: 10.5005/jp-journals-10024-1555] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
BACKGROUND The use of endosseous dental implants has led to more sophisticated fxed options when considering treatment of patients with distal extensions. The use of narrow-diameter implants may reduce the necessity for bone augmentation. The mechanical strength of titanium is limited, so titanium alloys with greater tensile and fatigue strength may be preferable. PURPOSE The purpose of this study was to evaluate clinically and radiographically the performance of narrow-diameter bone level implants made from titanium-zirconium alloy (TiZr, Roxolid(TM)) in restoring unilateral atrophic mandibular distal extensions with fxed dental prostheses. MATERIALS AND METHODS Twenty partially edentulous patients with unilateral atrophic mandibular distal extensions received two 3.3 mm diameter bone level TiZr implants (Straumann AG, Basel, Switzerland). The two implants were restored with 3-units ceramo-metal fxed partial dentures. Standardized clinical and radiographic parameters (survival rate, probing pocket depth and marginal bone loss) were evaluated at the time of the completion of the prosthetic treatment (baseline) and after 3, 6 and 12 months of functional loading. Prosthetic complications were also assessed. RESULTS The survival rate for narrow-diameter bone level TiZr implants was 100% after 1 year of functional loading. There were no statistically significant differences between the values of probing pocket depth over the follow-up period. All implants showed less than 1 mm of marginal bone loss at the end of the follow-up period. CONCLUSION Within the limitations of this 1-year pilot study, the use of narrow-diameter bone level TiZr implants appears to be predictable in restoring the unilateral atrophic mandibular distal extensions. This type of implants meets established success and survival criteria after 1 year.
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Affiliation(s)
- Ali M El-Sheikh
- Professor, Department of Prosthetic Dentistry, Faculty of Dentistry, Tanta University, Tanta, Egypt, e-mail:
| | - Omar F Shihabuddin
- Consultant, Department of Maxillofacial Surgery, Ministry of Health Dammam Medical Complex, Dammam, Saudi, Arabia
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48
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Quirynen M, Al-Nawas B, Meijer HJA, Razavi A, Reichert TE, Schimmel M, Storelli S, Romeo E. Small-diameter titanium Grade IV and titanium-zirconium implants in edentulous mandibles: three-year results from a double-blind, randomized controlled trial. Clin Oral Implants Res 2014; 26:831-40. [PMID: 24713048 DOI: 10.1111/clr.12367] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/10/2014] [Indexed: 01/23/2023]
Abstract
OBJECTIVE The aim of this study was to compare crestal bone-level changes, soft tissue parameters and implant success and survival between small-diameter implants made of titanium/zirconium (TiZr) alloy or of Grade IV titanium (Ti) in edentulous mandibles restored with removable overdentures. MATERIALS AND METHODS This was a randomized, controlled, double-blind, split-mouth multicenter clinical trial. Patients with edentulous mandibles received two Straumann bone-level implants (diameter 3.3 mm), one of Ti Grade IV (control) and one of TiZr (test), in the interforaminal region. Implants were loaded after 6-8 weeks and removable Locator-retained overdentures were placed within 2 weeks of loading. Modified plaque and sulcus bleeding indices, radiographic bone level, and implant survival and success were evaluated up to 36 months. RESULTS Of 91 treated patients, 75 completed the three-year follow-up. Three implants were lost (two control and one test implant). The survival rates were 98.7% and 97.3%, and the mean marginal bone level change was -0.78 ± 0.75 and -0.60 ± 0.71 mm for TiZr and Ti Grade IV implants. Most patients had a plaque score of 0 or 1 (54% for test and 51.7% for control), and a sulcus bleeding score of 0 (46.1% for test and 44.9% for control). No significant differences were found between the two implant types for bone-level change, soft tissue parameters, survival and success. CONCLUSIONS After 36 months, similar outcomes were found between Ti Grade IV and TiZr implants. The results confirm that the results seen at 12 months continue over time.
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Affiliation(s)
| | | | - Henny J A Meijer
- University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Amir Razavi
- Cantonal Hospital Lucerne, Lucerne, Switzerland
| | | | | | - Stefano Storelli
- University of Milan Dental Clinic, San Paolo Hospital, Milan, Italy
| | - Eugenio Romeo
- University of Milan Dental Clinic, San Paolo Hospital, Milan, Italy
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49
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Al-Nawas B, Domagala P, Fragola G, Freiberger P, Ortiz-Vigón A, Rousseau P, Tondela J. A Prospective Noninterventional Study to Evaluate Survival and Success of Reduced Diameter Implants Made From Titanium-Zirconium Alloy. J ORAL IMPLANTOL 2014; 41:e118-25. [PMID: 24666383 DOI: 10.1563/aaid-joi-d-13-00149] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Narrow diameter implants may be at increased risk of overload due to occlusal forces; therefore, implants with higher fatigue strength may be beneficial. The aim of this observational study was to evaluate survival and success of narrow diameter (Ø 3.3 mm) TiZr alloy (Roxolid, Institut Straumann AG, Basel, Switzerland) implants for 2 years in daily dental practice. This was a prospective, non-interventional, multicenter study; no specific patient inclusion or exclusion criteria were applied. Each patient received at least one TiZr implant; the treatment plan, including implant loading and final restoration, was at the investigator's discretion. The primary outcome was implant survival and success after 1 year. Secondary outcomes included 2-year survival and success and marginal bone level change. A total of 603 implants were placed in 357 patients. Cumulative survival and success rates were 97.8% and 97.6%, respectively, after 1 year and 97.6% and 97.4%, respectively, after 2 years. Bone levels remained stable in the majority of patients, and soft tissue remained stable up to 2 years. Within the limitations of a non-interventional study design, TiZr implants showed excellent survival and success with minimal bone loss up to 2 years in daily dental practice. The results compare favorably with those of small-diameter implants in controlled clinical trials.
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Affiliation(s)
- Bilal Al-Nawas
- 1 Oral and Maxillofacial Surgery, University Medical Center of the Johannes Gutenberg-University Mainz, Germany
| | - Peter Domagala
- 2 Institute of Dental Implants and Periodontics, Gurnee, Ill
| | | | | | | | | | - João Tondela
- 7 Faculty of Medicine of University of Coimbra (FMUC), Coimbra, Portugal
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50
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Sierra-Sánchez JL, Martínez-González A, García-Sala Bonmatí F, Mañes-Ferrer JF, Brotons-Oliver A. Narrow-diameter implants: are they a predictable treatment option? A literature review. Med Oral Patol Oral Cir Bucal 2014; 19:e74-81. [PMID: 24316701 PMCID: PMC3909436 DOI: 10.4317/medoral.19306] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2013] [Accepted: 08/07/2013] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVE To evaluate the predictability of narrow-diameter implants as a treatment option in routine clinical practice. A literature review was performed of studies reporting clinical results obtained with these implants. Survival rates, peri-implant bone loss and related complications were evaluated. The working hypothesis was that narrow-diameter implants offer clinical results similar to those obtained with implants of greater diameter. MATERIAL AND METHODS A Medline-PubMed search covering the period between 2002 and 2012 was carried out. Studies published in English and with a follow-up period of at least 12 months were considered for inclusion. A manual search was also conducted in different journals with an important impact factor. results: Twenty-one studies meeting the screening criteria were included in the literature review. A total of 2980 narrow-diameter implants placed in 1607 patients were analyzed. CONCLUSIONS The results obtained from the literature indicate that narrow-diameter implants are a predictable treatment option, since they afford clinical results comparable to those obtained with implants of greater diameter.
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Affiliation(s)
- José-Luis Sierra-Sánchez
- Clínica Universitaria Odontológica, Universidad Europea de Valencia, C/ Alfambra, 4 - bajo, 46009 - Valencia, Spain,
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