Effect of implant connection and restoration design (screwed vs. cemented) in reliability and failure modes of anterior crowns
Identifieur interne : 004843 ( Main/Exploration ); précédent : 004842; suivant : 004844Effect of implant connection and restoration design (screwed vs. cemented) in reliability and failure modes of anterior crowns
Auteurs : Amilcar C. Freitas Jr [États-Unis, Brésil] ; Estevam A. Bonfante [Brésil] ; Eduardo P. Rocha [Brésil] ; Nelson R. F. A. Silva [États-Unis] ; Leonard Marotta [États-Unis] ; Paulo G. Coelho [États-Unis]Source :
- European Journal of Oral Sciences [ 0909-8836 ] ; 2011-08.
English descriptors
- KwdEn :
- Abutment, Abutment connection, Abutment fracture, Abutment screw, Abutment screw fracture, Anterior crowns, Anterior region, Appl biomater, Arrows show, Beach marks, Biomed mater, Black arrow, Bonfante, Buccal direction, Cementretained restorations, Chief failure mode, Clin implant dent relat, Clinical practice, Coelho, Colosso, Complication rates, Connection designs, Connection system, Crack propagation, Crown screw, Cyclic loading, Damage accumulation, Dent, Dent mater, Dental implants, Ductile fractures, External connection, External connections, External hexagon, Failure mode, Failure modes, Fatigue testing, Fractographic markings, Fracture, Fracture origin, Freitas, Health sciences, Higher reliability, Highest reliability, Implant, Implant connection, Implant fracture, Incisal edge, Intact implant, Intact screw, Internal connection, Internal connections, Internal implant connection, Life testing, Lingual direction, Load distribution, Long axis, Lowest reliability, Materials park, Mechanical behaviour, Mechanical performance, Mechanical testing, Metallic matrix, Neck area, Oral maxillofac implants, Oral rehabil, Other hand, Parallel marks, Present study, Probability weibull curves, Prosthesis, Prosthet dent, Reliability, Representative failure modes, Restoration design, Retention system, Scanning electron microscopy, Scanning electron microscopy micrograph, Scanning electron microscopy micrographs, Screw fracture, Screw fractures, Silva, Single crowns, Ssalt, Success rate, Surface discontinuities, Survival rates, Systematic review, Tensile side, Thread region, Thread roots, Unigranrio university school, Xation screw, Yellow arrows, York university college, Zirconia abutments.
- Teeft :
- Abutment, Abutment connection, Abutment fracture, Abutment screw, Abutment screw fracture, Anterior crowns, Anterior region, Appl biomater, Arrows show, Beach marks, Biomed mater, Black arrow, Bonfante, Buccal direction, Cementretained restorations, Chief failure mode, Clin implant dent relat, Clinical practice, Coelho, Colosso, Complication rates, Connection designs, Connection system, Crack propagation, Crown screw, Cyclic loading, Damage accumulation, Dent, Dent mater, Dental implants, Ductile fractures, External connection, External connections, External hexagon, Failure mode, Failure modes, Fatigue testing, Fractographic markings, Fracture, Fracture origin, Freitas, Health sciences, Higher reliability, Highest reliability, Implant, Implant connection, Implant fracture, Incisal edge, Intact implant, Intact screw, Internal connection, Internal connections, Internal implant connection, Life testing, Lingual direction, Load distribution, Long axis, Lowest reliability, Materials park, Mechanical behaviour, Mechanical performance, Mechanical testing, Metallic matrix, Neck area, Oral maxillofac implants, Oral rehabil, Other hand, Parallel marks, Present study, Probability weibull curves, Prosthesis, Prosthet dent, Reliability, Representative failure modes, Restoration design, Retention system, Scanning electron microscopy, Scanning electron microscopy micrograph, Scanning electron microscopy micrographs, Screw fracture, Screw fractures, Silva, Single crowns, Ssalt, Success rate, Surface discontinuities, Survival rates, Systematic review, Tensile side, Thread region, Thread roots, Unigranrio university school, Xation screw, Yellow arrows, York university college, Zirconia abutments.
Abstract
Freitas AC Jr, Bonfante EA, Rocha EP, Silva NRFA, Marotta L, Coelho PG. Effect of implant connection and restoration design (screwed vs. cemented) in reliability and failure modes of anterior crowns.
Eur J Oral Sci 2011; 119: 323–330. © 2011 Eur J Oral Sci The mechanical performance of cemented or screw‐retained implant‐supported crowns with an internal or external configuration is yet to be understood. This in vitro study evaluated the effect of screw‐retained and cement‐retained prostheses on internal and external implant–abutment connections. Thereby, the reliability and failure modes of crowns were investigated. Eighty‐four implants (Emfils; Colosso Evolution system) were divided into four groups (n=21 each): screw‐retained and internal connection (Si), screw‐retained and external connection (Se), cement‐retained and internal connection (Ci), and cement‐retained and external connection (Ce). Ti‐6Al‐4V abutments were torqued (30 Ncm) to the implants, and maxillary central incisor metal crowns were torqued (30 Ncm) or cemented (Rely X Unicem; 3M‐ESPE) and subjected to accelerated life‐testing in water. Use‐level probability Weibull curves and reliability for 50,000 cycles at 150 N were calculated. The β values for Si (1.72), Se (1.50), Ci (1.34), and Ce (1.77) groups indicated that fatigue/damage accumulation accelerated their failure. The Ci group presented the highest reliability, the Se group presented the lowest reliability, and Si and Ce groups presented intermediate reliability. Screw‐retained restorations presented mainly abutment fracture. Cement‐retained restorations resulted in failures of the screw in the Ce group, but implant/screw fracture in the Ci group.
Url:
DOI: 10.1111/j.1600-0722.2011.00837.x
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Coelho</name><affiliation wicri:level="2"><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Biomaterials and Biomimetics, New York University College of Dentistry, New York, NY</wicri:regionArea><placeName><region type="state">État de New York</region></placeName></affiliation></author></analytic><monogr></monogr><series><title level="j" type="main">European Journal of Oral Sciences</title><title level="j" type="alt">EUROPEAN JOURNAL OF ORAL SCIENCES</title><idno type="ISSN">0909-8836</idno><idno type="eISSN">1600-0722</idno><imprint><biblScope unit="vol">119</biblScope><biblScope unit="issue">4</biblScope><biblScope unit="page" from="323">323</biblScope><biblScope unit="page" to="330">330</biblScope><biblScope unit="page-count">8</biblScope><publisher>Blackwell Publishing Ltd</publisher><pubPlace>Oxford, UK</pubPlace><date type="published" when="2011-08">2011-08</date></imprint><idno type="ISSN">0909-8836</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0909-8836</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Abutment</term><term>Abutment connection</term><term>Abutment fracture</term><term>Abutment screw</term><term>Abutment screw fracture</term><term>Anterior crowns</term><term>Anterior region</term><term>Appl biomater</term><term>Arrows show</term><term>Beach marks</term><term>Biomed mater</term><term>Black arrow</term><term>Bonfante</term><term>Buccal direction</term><term>Cementretained restorations</term><term>Chief failure mode</term><term>Clin implant dent relat</term><term>Clinical practice</term><term>Coelho</term><term>Colosso</term><term>Complication rates</term><term>Connection designs</term><term>Connection system</term><term>Crack propagation</term><term>Crown screw</term><term>Cyclic loading</term><term>Damage accumulation</term><term>Dent</term><term>Dent mater</term><term>Dental implants</term><term>Ductile fractures</term><term>External connection</term><term>External connections</term><term>External hexagon</term><term>Failure mode</term><term>Failure modes</term><term>Fatigue testing</term><term>Fractographic markings</term><term>Fracture</term><term>Fracture origin</term><term>Freitas</term><term>Health sciences</term><term>Higher reliability</term><term>Highest reliability</term><term>Implant</term><term>Implant connection</term><term>Implant fracture</term><term>Incisal edge</term><term>Intact implant</term><term>Intact screw</term><term>Internal connection</term><term>Internal connections</term><term>Internal implant connection</term><term>Life testing</term><term>Lingual direction</term><term>Load distribution</term><term>Long axis</term><term>Lowest reliability</term><term>Materials park</term><term>Mechanical behaviour</term><term>Mechanical performance</term><term>Mechanical testing</term><term>Metallic matrix</term><term>Neck area</term><term>Oral maxillofac implants</term><term>Oral rehabil</term><term>Other hand</term><term>Parallel marks</term><term>Present study</term><term>Probability weibull curves</term><term>Prosthesis</term><term>Prosthet dent</term><term>Reliability</term><term>Representative failure modes</term><term>Restoration design</term><term>Retention system</term><term>Scanning electron microscopy</term><term>Scanning electron microscopy micrograph</term><term>Scanning electron microscopy micrographs</term><term>Screw fracture</term><term>Screw fractures</term><term>Silva</term><term>Single crowns</term><term>Ssalt</term><term>Success rate</term><term>Surface discontinuities</term><term>Survival rates</term><term>Systematic review</term><term>Tensile side</term><term>Thread region</term><term>Thread roots</term><term>Unigranrio university school</term><term>Xation screw</term><term>Yellow arrows</term><term>York university college</term><term>Zirconia abutments</term></keywords><keywords scheme="Teeft" xml:lang="en"><term>Abutment</term><term>Abutment connection</term><term>Abutment fracture</term><term>Abutment screw</term><term>Abutment screw fracture</term><term>Anterior crowns</term><term>Anterior region</term><term>Appl biomater</term><term>Arrows show</term><term>Beach marks</term><term>Biomed mater</term><term>Black arrow</term><term>Bonfante</term><term>Buccal direction</term><term>Cementretained restorations</term><term>Chief failure mode</term><term>Clin implant dent relat</term><term>Clinical practice</term><term>Coelho</term><term>Colosso</term><term>Complication rates</term><term>Connection designs</term><term>Connection system</term><term>Crack propagation</term><term>Crown screw</term><term>Cyclic loading</term><term>Damage accumulation</term><term>Dent</term><term>Dent mater</term><term>Dental implants</term><term>Ductile fractures</term><term>External connection</term><term>External connections</term><term>External hexagon</term><term>Failure mode</term><term>Failure modes</term><term>Fatigue testing</term><term>Fractographic markings</term><term>Fracture</term><term>Fracture origin</term><term>Freitas</term><term>Health sciences</term><term>Higher reliability</term><term>Highest reliability</term><term>Implant</term><term>Implant connection</term><term>Implant fracture</term><term>Incisal edge</term><term>Intact implant</term><term>Intact screw</term><term>Internal connection</term><term>Internal connections</term><term>Internal implant connection</term><term>Life testing</term><term>Lingual direction</term><term>Load distribution</term><term>Long axis</term><term>Lowest reliability</term><term>Materials park</term><term>Mechanical behaviour</term><term>Mechanical performance</term><term>Mechanical testing</term><term>Metallic matrix</term><term>Neck area</term><term>Oral maxillofac implants</term><term>Oral rehabil</term><term>Other hand</term><term>Parallel marks</term><term>Present study</term><term>Probability weibull curves</term><term>Prosthesis</term><term>Prosthet dent</term><term>Reliability</term><term>Representative failure modes</term><term>Restoration design</term><term>Retention system</term><term>Scanning electron microscopy</term><term>Scanning electron microscopy micrograph</term><term>Scanning electron microscopy micrographs</term><term>Screw fracture</term><term>Screw fractures</term><term>Silva</term><term>Single crowns</term><term>Ssalt</term><term>Success rate</term><term>Surface discontinuities</term><term>Survival rates</term><term>Systematic review</term><term>Tensile side</term><term>Thread region</term><term>Thread roots</term><term>Unigranrio university school</term><term>Xation screw</term><term>Yellow arrows</term><term>York university college</term><term>Zirconia abutments</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Freitas AC Jr, Bonfante EA, Rocha EP, Silva NRFA, Marotta L, Coelho PG. Effect of implant connection and restoration design (screwed vs. cemented) in reliability and failure modes of anterior crowns.
Eur J Oral Sci 2011; 119: 323–330. © 2011 Eur J Oral Sci The mechanical performance of cemented or screw‐retained implant‐supported crowns with an internal or external configuration is yet to be understood. This in vitro study evaluated the effect of screw‐retained and cement‐retained prostheses on internal and external implant–abutment connections. Thereby, the reliability and failure modes of crowns were investigated. Eighty‐four implants (Emfils; Colosso Evolution system) were divided into four groups (n=21 each): screw‐retained and internal connection (Si), screw‐retained and external connection (Se), cement‐retained and internal connection (Ci), and cement‐retained and external connection (Ce). Ti‐6Al‐4V abutments were torqued (30 Ncm) to the implants, and maxillary central incisor metal crowns were torqued (30 Ncm) or cemented (Rely X Unicem; 3M‐ESPE) and subjected to accelerated life‐testing in water. Use‐level probability Weibull curves and reliability for 50,000 cycles at 150 N were calculated. The β values for Si (1.72), Se (1.50), Ci (1.34), and Ce (1.77) groups indicated that fatigue/damage accumulation accelerated their failure. The Ci group presented the highest reliability, the Se group presented the lowest reliability, and Si and Ce groups presented intermediate reliability. Screw‐retained restorations presented mainly abutment fracture. Cement‐retained restorations resulted in failures of the screw in the Ce group, but implant/screw fracture in the Ci group.</div></front></TEI><affiliations><list><country><li>Brésil</li><li>États-Unis</li></country><region><li>État de New York</li><li>État de São Paulo</li></region><settlement><li>São Paulo</li></settlement></list><tree><country name="États-Unis"><region name="État de New York"><name sortKey="Freitas Jr, Amilcar C" sort="Freitas Jr, Amilcar C" uniqKey="Freitas Jr A" first="Amilcar C." last="Freitas Jr">Amilcar C. Freitas Jr</name></region><name sortKey="Coelho, Paulo G" sort="Coelho, Paulo G" uniqKey="Coelho P" first="Paulo G." last="Coelho">Paulo G. Coelho</name><name sortKey="Marotta, Leonard" sort="Marotta, Leonard" uniqKey="Marotta L" first="Leonard" last="Marotta">Leonard Marotta</name><name sortKey="Silva, Nelson R F A" sort="Silva, Nelson R F A" uniqKey="Silva N" first="Nelson R. F. A." last="Silva">Nelson R. F. A. Silva</name></country><country name="Brésil"><region name="État de São Paulo"><name sortKey="Freitas Jr, Amilcar C" sort="Freitas Jr, Amilcar C" uniqKey="Freitas Jr A" first="Amilcar C." last="Freitas Jr">Amilcar C. Freitas Jr</name></region><name sortKey="Bonfante, Estevam A" sort="Bonfante, Estevam A" uniqKey="Bonfante E" first="Estevam A." last="Bonfante">Estevam A. Bonfante</name><name sortKey="Rocha, Eduardo P" sort="Rocha, Eduardo P" uniqKey="Rocha E" first="Eduardo P." last="Rocha">Eduardo P. Rocha</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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