Photoelastic Analysis of Fixed Partial Prosthesis Crown Height and Implant Length on Distribution of Stress in Two Dental Implant Systems
The aim of this study was to evaluate by photoelastic analysis stress distribution on short and long implants of two dental implant systems with 2-unit implant-supported fixed partial prostheses of 8 mm and 13 mm heights. Sixteen photoelastic models were divided into 4 groups: I: long implant (5×11 ...
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doaj-8611f51d302c4d05b10e52818f943ce02020-11-24T20:45:13ZengHindawi LimitedInternational Journal of Dentistry1687-87281687-87362014-01-01201410.1155/2014/206723206723Photoelastic Analysis of Fixed Partial Prosthesis Crown Height and Implant Length on Distribution of Stress in Two Dental Implant SystemsEvandro Portela Figueirêdo0Eder Alberto Sigua-Rodriguez1Marcele Jardim Pimentel2Ana Regina Oliveira Moreira3Mauro Antônio de Arruda Nóbilo4José Ricardo de Albergaria-Barbosa5Department of Odontology, Unified University Center of Maranhão (UNICEUMA), 65.075-120 São Luís, MA, BrazilDepartment of Oral and Maxillofacial Surgery, Piracicaba Dental School, P.O. Box 52, University of Campinas (UNICAMP), 13414-903 Piracicaba, SP, BrazilDepartment of Prosthesis and Periodontology, Piracicaba Dental School, P.O. Box 52, University of Campinas (UNICAMP), 13414-903 Piracicaba, SP, BrazilDepartment of Prosthesis and Periodontology, Piracicaba Dental School, P.O. Box 52, University of Campinas (UNICAMP), 13414-903 Piracicaba, SP, BrazilDepartment of Prosthesis and Periodontology, Piracicaba Dental School, P.O. Box 52, University of Campinas (UNICAMP), 13414-903 Piracicaba, SP, BrazilDepartment of Oral and Maxillofacial Surgery, Piracicaba Dental School, P.O. Box 52, University of Campinas (UNICAMP), 13414-903 Piracicaba, SP, BrazilThe aim of this study was to evaluate by photoelastic analysis stress distribution on short and long implants of two dental implant systems with 2-unit implant-supported fixed partial prostheses of 8 mm and 13 mm heights. Sixteen photoelastic models were divided into 4 groups: I: long implant (5×11 mm) (Neodent), II: long implant (5×11 mm) (Bicon), III: short implant (5×6 mm) (Neodent), and IV: short implants (5×6 mm) (Bicon). The models were positioned in a circular polariscope associated with a cell load and static axial (0.5 Kgf) and nonaxial load (15°, 0.5 Kgf) were applied to each group for both prosthetic crown heights. Three-way ANOVA was used to compare the factors implant length, crown height, and implant system (α=0.05). The results showed that implant length was a statistically significant factor for both axial and nonaxial loading. The 13 mm prosthetic crown did not result in statistically significant differences in stress distribution between the implant systems and implant lengths studied, regardless of load type (P>0.05). It can be concluded that short implants showed higher stress levels than long implants. Implant system and length was not relevant factors when prosthetic crown height were increased.http://dx.doi.org/10.1155/2014/206723 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Evandro Portela Figueirêdo Eder Alberto Sigua-Rodriguez Marcele Jardim Pimentel Ana Regina Oliveira Moreira Mauro Antônio de Arruda Nóbilo José Ricardo de Albergaria-Barbosa |
spellingShingle |
Evandro Portela Figueirêdo Eder Alberto Sigua-Rodriguez Marcele Jardim Pimentel Ana Regina Oliveira Moreira Mauro Antônio de Arruda Nóbilo José Ricardo de Albergaria-Barbosa Photoelastic Analysis of Fixed Partial Prosthesis Crown Height and Implant Length on Distribution of Stress in Two Dental Implant Systems International Journal of Dentistry |
author_facet |
Evandro Portela Figueirêdo Eder Alberto Sigua-Rodriguez Marcele Jardim Pimentel Ana Regina Oliveira Moreira Mauro Antônio de Arruda Nóbilo José Ricardo de Albergaria-Barbosa |
author_sort |
Evandro Portela Figueirêdo |
title |
Photoelastic Analysis of Fixed Partial Prosthesis Crown Height and Implant Length on Distribution of Stress in Two Dental Implant Systems |
title_short |
Photoelastic Analysis of Fixed Partial Prosthesis Crown Height and Implant Length on Distribution of Stress in Two Dental Implant Systems |
title_full |
Photoelastic Analysis of Fixed Partial Prosthesis Crown Height and Implant Length on Distribution of Stress in Two Dental Implant Systems |
title_fullStr |
Photoelastic Analysis of Fixed Partial Prosthesis Crown Height and Implant Length on Distribution of Stress in Two Dental Implant Systems |
title_full_unstemmed |
Photoelastic Analysis of Fixed Partial Prosthesis Crown Height and Implant Length on Distribution of Stress in Two Dental Implant Systems |
title_sort |
photoelastic analysis of fixed partial prosthesis crown height and implant length on distribution of stress in two dental implant systems |
publisher |
Hindawi Limited |
series |
International Journal of Dentistry |
issn |
1687-8728 1687-8736 |
publishDate |
2014-01-01 |
description |
The aim of this study was to evaluate by photoelastic analysis stress distribution on short and long implants of two dental implant systems with 2-unit implant-supported fixed partial prostheses of 8 mm and 13 mm heights. Sixteen photoelastic models were divided into 4 groups: I: long implant (5×11 mm) (Neodent), II: long implant (5×11 mm) (Bicon), III: short implant (5×6 mm) (Neodent), and IV: short implants (5×6 mm) (Bicon). The models were positioned in a circular polariscope associated with a cell load and static axial (0.5 Kgf) and nonaxial load (15°, 0.5 Kgf) were applied to each group for both prosthetic crown heights. Three-way ANOVA was used to compare the factors implant length, crown height, and implant system (α=0.05). The results showed that implant length was a statistically significant factor for both axial and nonaxial loading. The 13 mm prosthetic crown did not result in statistically significant differences in stress distribution between the implant systems and implant lengths studied, regardless of load type (P>0.05). It can be concluded that short implants showed higher stress levels than long implants. Implant system and length was not relevant factors when prosthetic crown height were increased. |
url |
http://dx.doi.org/10.1155/2014/206723 |
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