Waiting Time for Coronal Preparation and the Influence of Different Cements on Tensile Strength of Metal Posts
This study aimed to assess the effect of post-cementation waiting time for core preparation of cemented cast posts and cores had on retention in the root canal, using two different luting materials. Sixty extracted human canines were sectioned 16 mm from the root apex. After cast nickel-chromium met...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2012-01-01
|
| Series: | International Journal of Dentistry |
| Online Access: | http://dx.doi.org/10.1155/2012/785427 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850223107204186112 |
|---|---|
| author | Ilione Kruschewsky Costa Sousa Oliveira Ynara Bosco de Oliveira Lima Arsati Roberta Tarkany Basting Fabiana Mantovani Gomes França |
| author_facet | Ilione Kruschewsky Costa Sousa Oliveira Ynara Bosco de Oliveira Lima Arsati Roberta Tarkany Basting Fabiana Mantovani Gomes França |
| author_sort | Ilione Kruschewsky Costa Sousa Oliveira |
| collection | DOAJ |
| description | This study aimed to assess the effect of post-cementation waiting time for core preparation of cemented cast posts and cores had on retention in the root canal, using two different luting materials. Sixty extracted human canines were sectioned 16 mm from the root apex. After cast nickel-chromium metal posts and cores were fabricated and luted with zinc phosphate (ZP) cement or resin cement (RC), the specimens were divided into 3 groups (n = 10) according to the waiting time for core preparation: no preparation (control), 15 minutes, or 1 week after the core cementation. At the appropriate time, the specimens were subjected to a tensile load test (0.5 mm/min) until failure. Two-way ANOVA (time versus cement) and the Tukey tests (P < 0.05) showed significantly higher (P < 0.05) tensile strength values for the ZP cement groups than for the RC groups. Core preparation and post-cementation waiting time for core recontouring did not influence the retention strength. ZP was the best material for intraradicular metal post cementation. |
| format | Article |
| id | doaj-art-6a6753b9844947fea742e40c8797f7c9 |
| institution | OA Journals |
| issn | 1687-8728 1687-8736 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Dentistry |
| spelling | doaj-art-6a6753b9844947fea742e40c8797f7c92025-08-20T02:06:05ZengWileyInternational Journal of Dentistry1687-87281687-87362012-01-01201210.1155/2012/785427785427Waiting Time for Coronal Preparation and the Influence of Different Cements on Tensile Strength of Metal PostsIlione Kruschewsky Costa Sousa Oliveira0Ynara Bosco de Oliveira Lima Arsati1Roberta Tarkany Basting2Fabiana Mantovani Gomes França3Departamento de Odontologia Restauradora-Dentística, Faculdade de Odontologia e Centro de Pesquisas Odontológicas São Leopoldo Mandic, Rua José Rocha Junqueira, 13045–755 Campinas, SP, BrazilDepartamento de Odontologia Restauradora-Dentística, Faculdade de Odontologia e Centro de Pesquisas Odontológicas São Leopoldo Mandic, Rua José Rocha Junqueira, 13045–755 Campinas, SP, BrazilDepartamento de Odontologia Restauradora-Dentística, Faculdade de Odontologia e Centro de Pesquisas Odontológicas São Leopoldo Mandic, Rua José Rocha Junqueira, 13045–755 Campinas, SP, BrazilDepartamento de Odontologia Restauradora-Dentística, Faculdade de Odontologia e Centro de Pesquisas Odontológicas São Leopoldo Mandic, Rua José Rocha Junqueira, 13045–755 Campinas, SP, BrazilThis study aimed to assess the effect of post-cementation waiting time for core preparation of cemented cast posts and cores had on retention in the root canal, using two different luting materials. Sixty extracted human canines were sectioned 16 mm from the root apex. After cast nickel-chromium metal posts and cores were fabricated and luted with zinc phosphate (ZP) cement or resin cement (RC), the specimens were divided into 3 groups (n = 10) according to the waiting time for core preparation: no preparation (control), 15 minutes, or 1 week after the core cementation. At the appropriate time, the specimens were subjected to a tensile load test (0.5 mm/min) until failure. Two-way ANOVA (time versus cement) and the Tukey tests (P < 0.05) showed significantly higher (P < 0.05) tensile strength values for the ZP cement groups than for the RC groups. Core preparation and post-cementation waiting time for core recontouring did not influence the retention strength. ZP was the best material for intraradicular metal post cementation.http://dx.doi.org/10.1155/2012/785427 |
| spellingShingle | Ilione Kruschewsky Costa Sousa Oliveira Ynara Bosco de Oliveira Lima Arsati Roberta Tarkany Basting Fabiana Mantovani Gomes França Waiting Time for Coronal Preparation and the Influence of Different Cements on Tensile Strength of Metal Posts International Journal of Dentistry |
| title | Waiting Time for Coronal Preparation and the Influence of Different Cements on Tensile Strength of Metal Posts |
| title_full | Waiting Time for Coronal Preparation and the Influence of Different Cements on Tensile Strength of Metal Posts |
| title_fullStr | Waiting Time for Coronal Preparation and the Influence of Different Cements on Tensile Strength of Metal Posts |
| title_full_unstemmed | Waiting Time for Coronal Preparation and the Influence of Different Cements on Tensile Strength of Metal Posts |
| title_short | Waiting Time for Coronal Preparation and the Influence of Different Cements on Tensile Strength of Metal Posts |
| title_sort | waiting time for coronal preparation and the influence of different cements on tensile strength of metal posts |
| url | http://dx.doi.org/10.1155/2012/785427 |
| work_keys_str_mv | AT ilionekruschewskycostasousaoliveira waitingtimeforcoronalpreparationandtheinfluenceofdifferentcementsontensilestrengthofmetalposts AT ynaraboscodeoliveiralimaarsati waitingtimeforcoronalpreparationandtheinfluenceofdifferentcementsontensilestrengthofmetalposts AT robertatarkanybasting waitingtimeforcoronalpreparationandtheinfluenceofdifferentcementsontensilestrengthofmetalposts AT fabianamantovanigomesfranca waitingtimeforcoronalpreparationandtheinfluenceofdifferentcementsontensilestrengthofmetalposts |