Effect of cantilever length and alloy framework on the stress distribution in peri-implant area of cantilevered implant-supported fixed partial dentures
ABSTRACT Because many mechanical variables are present in the oral cavity, the proper load transfer between the prosthesis and the bone is important for treatment planning and for the longevity of the implant-supported fixed partial denture. Objectives To verify the stress generated on the peri-im...
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| Format: | Article |
| Language: | English |
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University of São Paulo
2016-04-01
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| Series: | Journal of Applied Oral Science |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572016000200114&lng=en&tlng=en |
| _version_ | 1819151576057511936 |
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| author | Valdey SUEDAM Rafael Tobias MORETTI NETO Edson Antonio Capello SOUSA José Henrique RUBO |
| author_facet | Valdey SUEDAM Rafael Tobias MORETTI NETO Edson Antonio Capello SOUSA José Henrique RUBO |
| author_sort | Valdey SUEDAM |
| collection | DOAJ |
| description | ABSTRACT Because many mechanical variables are present in the oral cavity, the proper load transfer between the prosthesis and the bone is important for treatment planning and for the longevity of the implant-supported fixed partial denture. Objectives To verify the stress generated on the peri-implant area of cantilevered implant-supported fixed partial dentures and the potential effects of such variable. Material and Methods A U-shaped polyurethane model simulating the mandibular bone containing two implants (Ø 3.75 mm) was used. Six groups were formed according to the alloy’s framework (CoCr or PdAg) and the point of load application (5 mm, 10 mm and 15 mm of cantilever arm). A 300 N load was applied in pre-determined reference points. The tension generated on the mesial, lingual, distal and buccal sides of the peri-implant regions was assessed using strain gauges. Results Two-way ANOVA and Tukey statistical tests were applied showing significant differences (p<0.05) between the groups. Pearson correlation test (p<0.05) was applied showing positive correlations between the increase of the cantilever arm and the deformation of the peri-implant area. Conclusions This report demonstrated the CoCr alloy shows larger compression values compared to the PdAg alloy for the same distances of cantilever. The point of load application influences the deformation on the peri-implant area, increasing in accordance with the increase of the lever arm. |
| first_indexed | 2024-12-22T14:35:35Z |
| format | Article |
| id | doaj.art-a2e4ff3210394a04b8bfebe7fad31e52 |
| institution | Directory Open Access Journal |
| issn | 1678-7765 |
| language | English |
| last_indexed | 2024-12-22T14:35:35Z |
| publishDate | 2016-04-01 |
| publisher | University of São Paulo |
| record_format | Article |
| series | Journal of Applied Oral Science |
| spelling | doaj.art-a2e4ff3210394a04b8bfebe7fad31e522022-12-21T18:22:40ZengUniversity of São PauloJournal of Applied Oral Science1678-77652016-04-0124211412010.1590/1678-775720150297S1678-77572016000200114Effect of cantilever length and alloy framework on the stress distribution in peri-implant area of cantilevered implant-supported fixed partial denturesValdey SUEDAMRafael Tobias MORETTI NETOEdson Antonio Capello SOUSAJosé Henrique RUBOABSTRACT Because many mechanical variables are present in the oral cavity, the proper load transfer between the prosthesis and the bone is important for treatment planning and for the longevity of the implant-supported fixed partial denture. Objectives To verify the stress generated on the peri-implant area of cantilevered implant-supported fixed partial dentures and the potential effects of such variable. Material and Methods A U-shaped polyurethane model simulating the mandibular bone containing two implants (Ø 3.75 mm) was used. Six groups were formed according to the alloy’s framework (CoCr or PdAg) and the point of load application (5 mm, 10 mm and 15 mm of cantilever arm). A 300 N load was applied in pre-determined reference points. The tension generated on the mesial, lingual, distal and buccal sides of the peri-implant regions was assessed using strain gauges. Results Two-way ANOVA and Tukey statistical tests were applied showing significant differences (p<0.05) between the groups. Pearson correlation test (p<0.05) was applied showing positive correlations between the increase of the cantilever arm and the deformation of the peri-implant area. Conclusions This report demonstrated the CoCr alloy shows larger compression values compared to the PdAg alloy for the same distances of cantilever. The point of load application influences the deformation on the peri-implant area, increasing in accordance with the increase of the lever arm.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572016000200114&lng=en&tlng=enImplant-supported dental prosthesisDental implantsIn vitro techniquesMechanical stress |
| spellingShingle | Valdey SUEDAM Rafael Tobias MORETTI NETO Edson Antonio Capello SOUSA José Henrique RUBO Effect of cantilever length and alloy framework on the stress distribution in peri-implant area of cantilevered implant-supported fixed partial dentures Journal of Applied Oral Science Implant-supported dental prosthesis Dental implants In vitro techniques Mechanical stress |
| title | Effect of cantilever length and alloy framework on the stress distribution in peri-implant area of cantilevered implant-supported fixed partial dentures |
| title_full | Effect of cantilever length and alloy framework on the stress distribution in peri-implant area of cantilevered implant-supported fixed partial dentures |
| title_fullStr | Effect of cantilever length and alloy framework on the stress distribution in peri-implant area of cantilevered implant-supported fixed partial dentures |
| title_full_unstemmed | Effect of cantilever length and alloy framework on the stress distribution in peri-implant area of cantilevered implant-supported fixed partial dentures |
| title_short | Effect of cantilever length and alloy framework on the stress distribution in peri-implant area of cantilevered implant-supported fixed partial dentures |
| title_sort | effect of cantilever length and alloy framework on the stress distribution in peri implant area of cantilevered implant supported fixed partial dentures |
| topic | Implant-supported dental prosthesis Dental implants In vitro techniques Mechanical stress |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572016000200114&lng=en&tlng=en |
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