Photoelastic stress analysis of different designs of cement-retained fixed partial dentures on Morse taper oral implants.
Identifieur interne : 004070 ( Main/Exploration ); précédent : 004069; suivant : 004071Photoelastic stress analysis of different designs of cement-retained fixed partial dentures on Morse taper oral implants.
Auteurs : Luiz Ricardo Menani [Brésil] ; Rodrigo Tiossi ; Érica Miranda De Torres ; Ricardo Faria Ribeiro ; Rossana Pereira De AlmeidaSource :
- The Journal of craniofacial surgery [ 1536-3732 ] ; 2011.
Descripteurs français
- KwdFr :
- Analyse du stress dentaire (), Conception d'appareil de prothèse dentaire, Couronnes, Céramiques, Force occlusale, Humains, Implants dentaires, Modèles dentaires, Mâchoire partiellement édentée (rééducation et réadaptation), Photographie, Phénomènes biomécaniques, Prothèse dentaire implanto-portée, Prothèse partielle fixe, Résines acryliques.
- MESH :
- rééducation et réadaptation : Mâchoire partiellement édentée.
- Analyse du stress dentaire, Conception d'appareil de prothèse dentaire, Couronnes, Céramiques, Force occlusale, Humains, Implants dentaires, Modèles dentaires, Photographie, Phénomènes biomécaniques, Prothèse dentaire implanto-portée, Prothèse partielle fixe, Résines acryliques.
English descriptors
- KwdEn :
- MESH :
- chemical : Acrylic Resins, Dental Implants.
- methods : Dental Stress Analysis.
- rehabilitation : Jaw, Edentulous, Partially.
- Biomechanical Phenomena, Bite Force, Ceramics, Crowns, Dental Models, Dental Prosthesis, Implant-Supported, Denture Design, Denture, Partial, Fixed, Humans, Photography.
Abstract
There is no consensus in literature regarding the best plan for prosthetic rehabilitation with partial multiple adjacent implants to minimize stress generated in the bone-implant interface. The aim of this study was to evaluate the biomechanical behavior of cemented fixed partial dentures, splinted and nonsplinted, on Morse taper implants and with different types of coating material (ceramic and resin), using photoelastic stress analysis. A photoelastic model of an interposed edentulous space, missing a second premolar and a first molar, and rehabilitated with 4 different types of cemented crowns and supported by 2 adjacent implants was used. Groups were as follows: UC, splinted ceramic crowns; IC, nonsplinted ceramic crowns; UR, splinted resin crowns; and IR, nonsplinted resin crowns. Different vertical static loading conditions were performed: balanced occlusal load, 10 kgf; simultaneous punctiform load on the implanted premolar and molar, 10 kgf; and alternate punctiform load on the implanted premolar and molar, 5 kgf. Changes in stress distribution were analyzed in a polariscope, and digital photographs were taken of each condition to allow comparison of stress pattern distribution around the implants. Cementation of the fixed partial dentures generated stresses between implants. Splinted restorations distributed the stresses more evenly between the implants than nonsplinted when force was applied. Ceramic restorations presented better distribution of stresses than resin restorations. Based on the results obtained, it was concluded that splinted ceramic restorations promote better stress distribution around osseointegrated implants when compared with nonsplinted crowns; metal-ceramic restorations present less stress concentration and magnitude than metal-plastic restorations.
DOI: 10.1097/SCS.0b013e3182074571
PubMed: 21415635
Affiliations:
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last="Tiossi">Rodrigo Tiossi</name></author><author><name sortKey="De Torres, Erica Miranda" sort="De Torres, Erica Miranda" uniqKey="De Torres E" first="Érica Miranda" last="De Torres">Érica Miranda De Torres</name></author><author><name sortKey="Ribeiro, Ricardo Faria" sort="Ribeiro, Ricardo Faria" uniqKey="Ribeiro R" first="Ricardo Faria" last="Ribeiro">Ricardo Faria Ribeiro</name></author><author><name sortKey="De Almeida, Rossana Pereira" sort="De Almeida, Rossana Pereira" uniqKey="De Almeida R" first="Rossana Pereira" last="De Almeida">Rossana Pereira De Almeida</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2011">2011</date><idno type="RBID">pubmed:21415635</idno><idno type="pmid">21415635</idno><idno type="doi">10.1097/SCS.0b013e3182074571</idno><idno type="wicri:Area/PubMed/Corpus">001648</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Corpus" wicri:corpus="PubMed">001648</idno><idno 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Dental School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil.</nlm:affiliation><country xml:lang="fr">Brésil</country><wicri:regionArea>Ribeirao Preto Dental School, University of São Paulo, Ribeirão Preto, São Paulo</wicri:regionArea><placeName><settlement type="city">São Paulo</settlement><region type="state">État de São Paulo</region><settlement type="city">São Paulo</settlement></placeName><orgName type="university">Université de São Paulo</orgName></affiliation></author><author><name sortKey="Tiossi, Rodrigo" sort="Tiossi, Rodrigo" uniqKey="Tiossi R" first="Rodrigo" last="Tiossi">Rodrigo Tiossi</name></author><author><name sortKey="De Torres, Erica Miranda" sort="De Torres, Erica Miranda" uniqKey="De Torres E" first="Érica Miranda" last="De Torres">Érica Miranda De Torres</name></author><author><name sortKey="Ribeiro, Ricardo Faria" sort="Ribeiro, Ricardo Faria" uniqKey="Ribeiro R" first="Ricardo Faria" last="Ribeiro">Ricardo Faria Ribeiro</name></author><author><name sortKey="De Almeida, Rossana Pereira" sort="De Almeida, Rossana Pereira" uniqKey="De Almeida R" first="Rossana Pereira" last="De Almeida">Rossana Pereira De Almeida</name></author></analytic><series><title level="j">The Journal of craniofacial surgery</title><idno type="eISSN">1536-3732</idno><imprint><date when="2011" type="published">2011</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Acrylic Resins</term><term>Biomechanical Phenomena</term><term>Bite Force</term><term>Ceramics</term><term>Crowns</term><term>Dental Implants</term><term>Dental Models</term><term>Dental Prosthesis, Implant-Supported</term><term>Dental Stress Analysis (methods)</term><term>Denture Design</term><term>Denture, Partial, Fixed</term><term>Humans</term><term>Jaw, Edentulous, Partially (rehabilitation)</term><term>Photography</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Analyse du stress dentaire ()</term><term>Conception d'appareil de prothèse dentaire</term><term>Couronnes</term><term>Céramiques</term><term>Force occlusale</term><term>Humains</term><term>Implants dentaires</term><term>Modèles dentaires</term><term>Mâchoire partiellement édentée (rééducation et réadaptation)</term><term>Photographie</term><term>Phénomènes biomécaniques</term><term>Prothèse dentaire implanto-portée</term><term>Prothèse partielle fixe</term><term>Résines acryliques</term></keywords><keywords scheme="MESH" type="chemical" xml:lang="en"><term>Acrylic Resins</term><term>Dental Implants</term></keywords><keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Dental Stress Analysis</term></keywords><keywords scheme="MESH" qualifier="rehabilitation" xml:lang="en"><term>Jaw, Edentulous, Partially</term></keywords><keywords scheme="MESH" qualifier="rééducation et réadaptation" xml:lang="fr"><term>Mâchoire partiellement édentée</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Biomechanical Phenomena</term><term>Bite Force</term><term>Ceramics</term><term>Crowns</term><term>Dental Models</term><term>Dental Prosthesis, Implant-Supported</term><term>Denture Design</term><term>Denture, Partial, Fixed</term><term>Humans</term><term>Photography</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Analyse du stress dentaire</term><term>Conception d'appareil de prothèse dentaire</term><term>Couronnes</term><term>Céramiques</term><term>Force occlusale</term><term>Humains</term><term>Implants dentaires</term><term>Modèles dentaires</term><term>Photographie</term><term>Phénomènes biomécaniques</term><term>Prothèse dentaire implanto-portée</term><term>Prothèse partielle fixe</term><term>Résines acryliques</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">There is no consensus in literature regarding the best plan for prosthetic rehabilitation with partial multiple adjacent implants to minimize stress generated in the bone-implant interface. The aim of this study was to evaluate the biomechanical behavior of cemented fixed partial dentures, splinted and nonsplinted, on Morse taper implants and with different types of coating material (ceramic and resin), using photoelastic stress analysis. A photoelastic model of an interposed edentulous space, missing a second premolar and a first molar, and rehabilitated with 4 different types of cemented crowns and supported by 2 adjacent implants was used. Groups were as follows: UC, splinted ceramic crowns; IC, nonsplinted ceramic crowns; UR, splinted resin crowns; and IR, nonsplinted resin crowns. Different vertical static loading conditions were performed: balanced occlusal load, 10 kgf; simultaneous punctiform load on the implanted premolar and molar, 10 kgf; and alternate punctiform load on the implanted premolar and molar, 5 kgf. Changes in stress distribution were analyzed in a polariscope, and digital photographs were taken of each condition to allow comparison of stress pattern distribution around the implants. Cementation of the fixed partial dentures generated stresses between implants. Splinted restorations distributed the stresses more evenly between the implants than nonsplinted when force was applied. Ceramic restorations presented better distribution of stresses than resin restorations. Based on the results obtained, it was concluded that splinted ceramic restorations promote better stress distribution around osseointegrated implants when compared with nonsplinted crowns; metal-ceramic restorations present less stress concentration and magnitude than metal-plastic restorations.</div></front></TEI><affiliations><list><country><li>Brésil</li></country><region><li>État de São Paulo</li></region><settlement><li>São Paulo</li></settlement><orgName><li>Université de São Paulo</li></orgName></list><tree><noCountry><name sortKey="De Almeida, Rossana Pereira" sort="De Almeida, Rossana Pereira" uniqKey="De Almeida R" first="Rossana Pereira" last="De Almeida">Rossana Pereira De Almeida</name><name sortKey="De Torres, Erica Miranda" sort="De Torres, Erica Miranda" uniqKey="De Torres E" first="Érica Miranda" last="De Torres">Érica Miranda De Torres</name><name sortKey="Ribeiro, Ricardo Faria" sort="Ribeiro, Ricardo Faria" uniqKey="Ribeiro R" first="Ricardo Faria" last="Ribeiro">Ricardo Faria Ribeiro</name><name sortKey="Tiossi, Rodrigo" sort="Tiossi, Rodrigo" uniqKey="Tiossi R" first="Rodrigo" last="Tiossi">Rodrigo Tiossi</name></noCountry><country name="Brésil"><region name="État de São Paulo"><name sortKey="Menani, Luiz Ricardo" sort="Menani, Luiz Ricardo" uniqKey="Menani L" first="Luiz Ricardo" last="Menani">Luiz Ricardo Menani</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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