Identification of risk factors for fracture of veneering materials and screw loosening of implant-supported fixed partial dentures in partially edentulous cases.
Identifieur interne : 000371 ( PubMed/Corpus ); précédent : 000370; suivant : 000372Identification of risk factors for fracture of veneering materials and screw loosening of implant-supported fixed partial dentures in partially edentulous cases.
Auteurs : K. Noda ; H. Arakawa ; K. Maekawa ; E S Hara ; S. Yamazaki ; A. Kimura-Ono ; W. Sonoyama ; H. Minakuchi ; Y. Matsuka ; T. KubokiSource :
- Journal of oral rehabilitation [ 1365-2842 ] ; 2013.
English descriptors
- KwdEn :
- Bone Screws (adverse effects), Dental Abutments, Dental Prosthesis, Implant-Supported (adverse effects), Dental Restoration Failure (statistics & numerical data), Dental Veneers (adverse effects), Female, Follow-Up Studies, Humans, Incidence, Jaw, Edentulous, Partially (rehabilitation), Male, Middle Aged, Retrospective Studies, Risk Factors, Time Factors, Treatment Outcome.
- MESH :
- adverse effects : Bone Screws, Dental Prosthesis, Implant-Supported, Dental Veneers.
- rehabilitation : Jaw, Edentulous, Partially.
- statistics & numerical data : Dental Restoration Failure.
- Dental Abutments, Female, Follow-Up Studies, Humans, Incidence, Male, Middle Aged, Retrospective Studies, Risk Factors, Time Factors, Treatment Outcome.
Abstract
This retrospective study identified the risk factors for fracture of veneering materials and screw loosening of implant-supported fixed partial dentures in partially edentulous cases. The study group included a total of 182 patients who were installed 219 suprastructures at the Fixed Prosthodontic Clinic of Okayama University Dental Hospital between February 1990 and March 2005 and were subdivided in two subgroups: 120 patients (149 facing suprastructures) were included in the subgroup to investigate the risk factors of fracture of veneering materials, and 81 patients (92 suprastructures) were included in the subgroup to identify the risk factors of abutment screw loosening. Each patient was followed up from the day of suprastructure installation until March, 2005. A Cox proportional hazards regression model was used to identify the risk factors related to technical complications, and eight factors were regarded as candidate risk factors. Screw retention was the significant risk factor for fracture of veneering materials, whereas connection of suprastructures with natural tooth was the significant risk factor for screw loosening. It was suggested that screw retention was a significant risk factor for the fracture of veneering materials, and connection of suprastructures with natural tooth was a significant risk factor for screw loosening. Future studies, involving dynamic factors (e.g. bruxism) as predictors as well, are more helpful to discuss the risk factor of fracture of veneering materials and screw loosening.
DOI: 10.1111/joor.12029
PubMed: 23311869
Links to Exploration step
pubmed:23311869Le document en format XML
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<term>Incidence</term>
<term>Jaw, Edentulous, Partially (rehabilitation)</term>
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<term>Middle Aged</term>
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<front><div type="abstract" xml:lang="en">This retrospective study identified the risk factors for fracture of veneering materials and screw loosening of implant-supported fixed partial dentures in partially edentulous cases. The study group included a total of 182 patients who were installed 219 suprastructures at the Fixed Prosthodontic Clinic of Okayama University Dental Hospital between February 1990 and March 2005 and were subdivided in two subgroups: 120 patients (149 facing suprastructures) were included in the subgroup to investigate the risk factors of fracture of veneering materials, and 81 patients (92 suprastructures) were included in the subgroup to identify the risk factors of abutment screw loosening. Each patient was followed up from the day of suprastructure installation until March, 2005. A Cox proportional hazards regression model was used to identify the risk factors related to technical complications, and eight factors were regarded as candidate risk factors. Screw retention was the significant risk factor for fracture of veneering materials, whereas connection of suprastructures with natural tooth was the significant risk factor for screw loosening. It was suggested that screw retention was a significant risk factor for the fracture of veneering materials, and connection of suprastructures with natural tooth was a significant risk factor for screw loosening. Future studies, involving dynamic factors (e.g. bruxism) as predictors as well, are more helpful to discuss the risk factor of fracture of veneering materials and screw loosening.</div>
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<Abstract><AbstractText>This retrospective study identified the risk factors for fracture of veneering materials and screw loosening of implant-supported fixed partial dentures in partially edentulous cases. The study group included a total of 182 patients who were installed 219 suprastructures at the Fixed Prosthodontic Clinic of Okayama University Dental Hospital between February 1990 and March 2005 and were subdivided in two subgroups: 120 patients (149 facing suprastructures) were included in the subgroup to investigate the risk factors of fracture of veneering materials, and 81 patients (92 suprastructures) were included in the subgroup to identify the risk factors of abutment screw loosening. Each patient was followed up from the day of suprastructure installation until March, 2005. A Cox proportional hazards regression model was used to identify the risk factors related to technical complications, and eight factors were regarded as candidate risk factors. Screw retention was the significant risk factor for fracture of veneering materials, whereas connection of suprastructures with natural tooth was the significant risk factor for screw loosening. It was suggested that screw retention was a significant risk factor for the fracture of veneering materials, and connection of suprastructures with natural tooth was a significant risk factor for screw loosening. Future studies, involving dynamic factors (e.g. bruxism) as predictors as well, are more helpful to discuss the risk factor of fracture of veneering materials and screw loosening.</AbstractText>
<CopyrightInformation>© 2013 Blackwell Publishing Ltd.</CopyrightInformation>
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