A study of the bending resistance of implant-supported reinforced alumina and machined zirconia abutments and copies

Sundh, Anders; Sjögren, Göran

doi:10.1016/j.dental.2007.05.021

Cited by 36 publications

(23 citation statements)

References 13 publications

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“…In the group of Alpha Bio titanium all the specimens showed screw and hexagon deformation and no deformation were detected in the analogs. This was also seen by Sundh et al [21].…”

Section: Discussionsupporting

confidence: 74%

Bending Moments and Failure of Titanium and Zirconia Abutments with Internal Connections: In Vitro Study

Fern

Massoglia

Catalán

et al. 2016

JDHODT

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IntroductionThe replacement of missing anterior tooth with an osseointegrated implant or with a fixed dental prosthesis is part of the routine practice of today dentistry resulting in treatment with high success rates [1]. Titanium abutments are the gold standard in rehabilitation of implants in cases of fixed prosthesis, due to their excellent biologic properties and great biomechanics characteristic. However, metal abutment cause discoloration of the peri-implant mucosa because of its gray color [2,3], putting in risk the esthetic outcome. Taking this problem into account, different ceramic abutments made of zirconia, alumina or other ceramic materials are now available [4].The use of ceramic abutments offers several clinical advantages over metallic abutments. The esthetic outcome is not only related to the similarity of the color peri-implant mucosa between a natural tooth and a zirconia [5], but also with the easiness in manage the color outcome of all ceramic fixed prosthesis [6]. In addition, the biologic properties of zirconia are similar or even better than titanium [7], showing low in-vivo bacterial adhesion [8-10], less peri-implant inflammation [11] and even soft tissue integration [12,13].Implants have different designs of implant abutment connection and the connection of the zirconia abutments to the implant can be carried out by means of the abutment itself or through a secondary metallic element. Several investigations have indicated that the fracture resistance of a ceramic abutment is dependent of the type of implant abutment connection and the presence of a secondary metallic element [14][15][16][17], However, in the current research there is a lack of studies regarding the difference on the fracture resistance of zirconia abutments with different combinations of secondary metallic elements, using an internal hexagon connection. Research Article AbstractBackground: The use of Zirconia abutment is increasing in the search of an aesthetic rehabilitation.

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“…In the group of Alpha Bio titanium all the specimens showed screw and hexagon deformation and no deformation were detected in the analogs. This was also seen by Sundh et al [21].…”

Section: Discussionsupporting

confidence: 74%

Bending Moments and Failure of Titanium and Zirconia Abutments with Internal Connections: In Vitro Study

Fern

Massoglia

Catalán

et al. 2016

JDHODT

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“…Sundh and Sjögren in 2008 (17) studied the flexion strength of the zirconia abutments when is used a cantilever structure. The results demonstrate that the flexion strength of the zirconia abutments is greater or similar to the titanium abutments that were the control group (17). According to Gehrke et al (18) the zirconia abutments under static load exhibited maximum fracture values of 672 N, being manifestly smaller (269 N) after 80000 cycles, supporting loads that exceed the established maximum values of force at incisal level.…”

Section: -Zirconia Abutments Strengthmentioning

confidence: 72%

“…In addition loosening torque was evaluated, that decreased very slightly at the end of the cycles and the total loosening was not observed (18). In conclusion, the majority of the studies consider that the ceramic abutments failure is more frequent in the cervical region, very close to the interface implant/abutment (2,3,(15)(16)(17).…”

Section: -Zirconia Abutments Strengthmentioning

confidence: 99%

Zirconia implant abutments: A review

Gomes¹,

Montero²

2011

Med Oral

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Objectives: An increasing aesthetic demand within developed populations conducted to the fabrication of metalfree restorations and to a wide use of ceramic materials, due to its excellent characteristics of biocompatibility and aesthetics. With the incessant increase of commercial labels involved in this technological advance, a review is imposed on ceramic abutments, specifically on zirconia. We made a search of articles of peer-reviewed Journals in PubMed/ Medline, crossing the terms "Dental Abutments", "Dental Porcelain" and "Zirconia". The review was divided by subtopics: zirconia physical and mechanical properties, precision fit in the implant-abutment interface, zirconia abutments strength and, finally, bacterial adherence and tissues response. Several studies demonstrate that zirconia abutments offer good results at all the levels but relevant issues need further studies and evaluation. One of the most important is the clinical long term success of zirconia abutments on implants, given that in the literature there are no sufficient in vivo studies that prove it.

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“…Yttria‐stabilized zirconia ceramic (Y‐TZP) has been extensively described in the literature (for a review, see Piconi & Maccauro 1999) and is currently applied in different fields of dentistry. In implant dentistry, it is used as a material for ceramic abutments and frameworks due to its high fracture strength, its low affinity to bacterial colonization and its favourable aesthetic characteristics (Rimondini et al 2002, Groessner‐Schreiber et al 2004, Canullo 2007, Kokubo et al 2007, Rompen et al 2007, Sundh & Sjögren 2008). These characteristics have also made zirconia attractive for the fabrication of endosseous implants in order to avoid unfavourable discoloration due to titanium shining through thin peri‐implant soft tissues (Jung et al 2007, Oliva et al 2007, Park 2007).…”

mentioning

confidence: 99%

Mechanical anchorage and peri‐implant bone formation of surface‐modified zirconia in minipigs

Schliephake

Hefti

Schlottig

et al. 2010

J Clinic Periodontology

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A study of the bending resistance of implant-supported reinforced alumina and machined zirconia abutments and copies

Cited by 36 publications

References 13 publications

Bending Moments and Failure of Titanium and Zirconia Abutments with Internal Connections: In Vitro Study

Bending Moments and Failure of Titanium and Zirconia Abutments with Internal Connections: In Vitro Study

Zirconia implant abutments: A review

Mechanical anchorage and peri‐implant bone formation of surface‐modified zirconia in minipigs

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