Effect of Abutment Height on Retention of Single Cementretained, Wide- and Narrow-platform Implant-supported Restorations
Background and aims. In contrast to prepared natural dentin abutments, little is known concerning factors influencing the retention of fixed prostheses cemented to implant abutments. The aim of this study was to investigate the effect of implant abutment height on the retention of single castings...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Tabriz University of Medical Sciences
2012-06-01
|
| Series: | Journal of Dental Research, Dental Clinics, Dental Prospects |
| Subjects: | |
| Online Access: | http://dentistry.tbzmed.ac.ir/joddd/index.php/joddd/article/view/288/251 |
| _version_ | 1828384885707898880 |
|---|---|
| author | Fariba Saleh Saber Nader Abolfazli Sara Nuroloyuni Sohleh Khodabakhsh Mehran Bahrami Reza Nahidi Somaieh Zeighami |
| author_facet | Fariba Saleh Saber Nader Abolfazli Sara Nuroloyuni Sohleh Khodabakhsh Mehran Bahrami Reza Nahidi Somaieh Zeighami |
| author_sort | Fariba Saleh Saber |
| collection | DOAJ |
| description | Background and aims. In contrast to prepared natural dentin abutments, little is known concerning factors influencing
the retention of fixed prostheses cemented to implant abutments. The aim of this study was to investigate the effect of implant
abutment height on the retention of single castings cemented to wide and narrow platform implant abutments.
Materials and methods. Thirty-six parallel-sided abutments (Biohorizon Straight Abutment) of narrow platform (NP)
and wide platform (WP) sizes with their analogs were used. In each group of platform size, abutments were prepared with
axial wall heights of 5, 4, 3, 2 mm (n=9). On the whole 72 castings were constructed, which incorporated an attachment to
allow removal. Castings were cemented to abutments with TempBond®. A uniaxial tensile force was applied to the crown
using an Instron machine until cement failure occurred. Analysis of variance of the models were fit to determine the effect
of height of abutment of the restorations on the mean tensile strength (α=0.05).
Results. The mean peak removal force for corresponding abutments was significantly different (P < 0.05): (1) with platform
sizes: WP > NP; (2) with alteration of axial wall height for NP: 5 mm > 4 mm > 3 mm = 2 mm and for WP: 5 mm > 4
mm = 3 mm = 2 mm.
Conclusion. The retention of NP cement-retained restorations is influenced by the wall height but not in same manner as
WP. Restorations of narrow-platform size with longer abutment exhibited higher tensile resistance to dislodgement. |
| first_indexed | 2024-12-10T05:11:12Z |
| format | Article |
| id | doaj.art-b9a9a671118f4bdba747e3f193ef9f37 |
| institution | Directory Open Access Journal |
| issn | 2008-210X 2008-2118 |
| language | English |
| last_indexed | 2024-12-10T05:11:12Z |
| publishDate | 2012-06-01 |
| publisher | Tabriz University of Medical Sciences |
| record_format | Article |
| series | Journal of Dental Research, Dental Clinics, Dental Prospects |
| spelling | doaj.art-b9a9a671118f4bdba747e3f193ef9f372022-12-22T02:01:07ZengTabriz University of Medical SciencesJournal of Dental Research, Dental Clinics, Dental Prospects2008-210X2008-21182012-06-01639810210.5681/joddd.2012.021Effect of Abutment Height on Retention of Single Cementretained, Wide- and Narrow-platform Implant-supported RestorationsFariba Saleh Saber0Nader Abolfazli1Sara Nuroloyuni2Sohleh Khodabakhsh3Mehran Bahrami4Reza Nahidi5Somaieh Zeighami6Associate Professor, Department of Prosthodontics, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, IranAssociate Professor, Department of Periodontics, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, IranPost-graduate Student, Department of Pediatric Dentistry, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, IranDentist, Private Practice, Urmieh, Iran Assistant Professor, Department of Prosthodontics, Faculty of Dentistry, Tehran University of Medical Sciences, Tehran, Iran Assistant Professor, Department of Prosthodontics, Faculty of Dentistry, Tehran University of Medical Sciences, Tehran, Iran Assistant Professor, Department of Prosthodontics, Faculty of Dentistry, Tehran University of Medical Sciences, Tehran, Iran Background and aims. In contrast to prepared natural dentin abutments, little is known concerning factors influencing the retention of fixed prostheses cemented to implant abutments. The aim of this study was to investigate the effect of implant abutment height on the retention of single castings cemented to wide and narrow platform implant abutments. Materials and methods. Thirty-six parallel-sided abutments (Biohorizon Straight Abutment) of narrow platform (NP) and wide platform (WP) sizes with their analogs were used. In each group of platform size, abutments were prepared with axial wall heights of 5, 4, 3, 2 mm (n=9). On the whole 72 castings were constructed, which incorporated an attachment to allow removal. Castings were cemented to abutments with TempBond®. A uniaxial tensile force was applied to the crown using an Instron machine until cement failure occurred. Analysis of variance of the models were fit to determine the effect of height of abutment of the restorations on the mean tensile strength (α=0.05). Results. The mean peak removal force for corresponding abutments was significantly different (P < 0.05): (1) with platform sizes: WP > NP; (2) with alteration of axial wall height for NP: 5 mm > 4 mm > 3 mm = 2 mm and for WP: 5 mm > 4 mm = 3 mm = 2 mm. Conclusion. The retention of NP cement-retained restorations is influenced by the wall height but not in same manner as WP. Restorations of narrow-platform size with longer abutment exhibited higher tensile resistance to dislodgement.http://dentistry.tbzmed.ac.ir/joddd/index.php/joddd/article/view/288/251Dental abutmentsdental implantsimplant-supported prosthesisretention |
| spellingShingle | Fariba Saleh Saber Nader Abolfazli Sara Nuroloyuni Sohleh Khodabakhsh Mehran Bahrami Reza Nahidi Somaieh Zeighami Effect of Abutment Height on Retention of Single Cementretained, Wide- and Narrow-platform Implant-supported Restorations Journal of Dental Research, Dental Clinics, Dental Prospects Dental abutments dental implants implant-supported prosthesis retention |
| title | Effect of Abutment Height on Retention of Single Cementretained, Wide- and Narrow-platform Implant-supported Restorations |
| title_full | Effect of Abutment Height on Retention of Single Cementretained, Wide- and Narrow-platform Implant-supported Restorations |
| title_fullStr | Effect of Abutment Height on Retention of Single Cementretained, Wide- and Narrow-platform Implant-supported Restorations |
| title_full_unstemmed | Effect of Abutment Height on Retention of Single Cementretained, Wide- and Narrow-platform Implant-supported Restorations |
| title_short | Effect of Abutment Height on Retention of Single Cementretained, Wide- and Narrow-platform Implant-supported Restorations |
| title_sort | effect of abutment height on retention of single cementretained wide and narrow platform implant supported restorations |
| topic | Dental abutments dental implants implant-supported prosthesis retention |
| url | http://dentistry.tbzmed.ac.ir/joddd/index.php/joddd/article/view/288/251 |
| work_keys_str_mv | AT faribasalehsaber effectofabutmentheightonretentionofsinglecementretainedwideandnarrowplatformimplantsupportedrestorations AT naderabolfazli effectofabutmentheightonretentionofsinglecementretainedwideandnarrowplatformimplantsupportedrestorations AT saranuroloyuni effectofabutmentheightonretentionofsinglecementretainedwideandnarrowplatformimplantsupportedrestorations AT sohlehkhodabakhsh effectofabutmentheightonretentionofsinglecementretainedwideandnarrowplatformimplantsupportedrestorations AT mehranbahrami effectofabutmentheightonretentionofsinglecementretainedwideandnarrowplatformimplantsupportedrestorations AT rezanahidi effectofabutmentheightonretentionofsinglecementretainedwideandnarrowplatformimplantsupportedrestorations AT somaiehzeighami effectofabutmentheightonretentionofsinglecementretainedwideandnarrowplatformimplantsupportedrestorations |