A retrospective comparative ten-year study of cumulative survival rates of remaining teeth in large edentulism treated with implant-supported fixed partial dentures or removable partial dentures

Seiya Yamazaki, Hikaru Arakawa, Kenji Maekawa, Emilio satoshi Hara, Kinji Noda, Hajime Minakuchi, Wataru Sonoyama, Yoshizo Matsuka, Takuo Kuboki

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Purpose: This study aimed to compare the survival rates of remaining teeth between implant-supported fixed dentures (IFDs) and removable partial dentures (RPDs) in patients with large edentulous cases. The second goal was to assess the risk factors for remaining tooth loss. Materials and methods: The study subjects were selected among those who received prosthodontic treatment at Okayama University Dental Hospital for their edentulous space exceeding at least four continuous missing teeth. Twenty-one patients were included in the IFD group and 82 patients were included in the RPD group. Survival rates of remaining teeth were calculated in three subcategories: (1) whole remaining teeth, (2) adjacent teeth to intended edentulous space, and (3) opposing teeth to intended edentulous space. Results: The ten-year cumulative survival rate of the whole remaining teeth was significantly higher in the IFD group (40.0%) than in the RPD group (24.4%). On the other hand, there was no significant difference between two groups in the survival rate of teeth adjacent or opposing to intended edentulous space. A Cox proportional hazard analysis revealed that RPD restoration and gender (male) were the significant risk factors for remaining tooth loss (whole remaining teeth). Conclusions: These results suggest that IFD treatment can reduce the incidence of remaining tooth loss in large edentulous cases.

Original languageEnglish
Pages (from-to)156-161
Number of pages6
JournalJournal of Prosthodontic Research
Volume57
Issue number3
DOIs
Publication statusPublished - Jul 2013

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Removable Partial Denture
Fixed Partial Denture
Tooth
Survival Rate
Implant-Supported Dental Prosthesis
Tooth Loss
Prosthodontics

Keywords

  • Implant-supported fixed denture
  • Remaining teeth
  • Removal partial denture
  • Risk factor
  • Survival rate

ASJC Scopus subject areas

  • Dentistry (miscellaneous)
  • Oral Surgery

Cite this

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title = "A retrospective comparative ten-year study of cumulative survival rates of remaining teeth in large edentulism treated with implant-supported fixed partial dentures or removable partial dentures",
abstract = "Purpose: This study aimed to compare the survival rates of remaining teeth between implant-supported fixed dentures (IFDs) and removable partial dentures (RPDs) in patients with large edentulous cases. The second goal was to assess the risk factors for remaining tooth loss. Materials and methods: The study subjects were selected among those who received prosthodontic treatment at Okayama University Dental Hospital for their edentulous space exceeding at least four continuous missing teeth. Twenty-one patients were included in the IFD group and 82 patients were included in the RPD group. Survival rates of remaining teeth were calculated in three subcategories: (1) whole remaining teeth, (2) adjacent teeth to intended edentulous space, and (3) opposing teeth to intended edentulous space. Results: The ten-year cumulative survival rate of the whole remaining teeth was significantly higher in the IFD group (40.0{\%}) than in the RPD group (24.4{\%}). On the other hand, there was no significant difference between two groups in the survival rate of teeth adjacent or opposing to intended edentulous space. A Cox proportional hazard analysis revealed that RPD restoration and gender (male) were the significant risk factors for remaining tooth loss (whole remaining teeth). Conclusions: These results suggest that IFD treatment can reduce the incidence of remaining tooth loss in large edentulous cases.",
keywords = "Implant-supported fixed denture, Remaining teeth, Removal partial denture, Risk factor, Survival rate",
author = "Seiya Yamazaki and Hikaru Arakawa and Kenji Maekawa and Emilio satoshi Hara and Kinji Noda and Hajime Minakuchi and Wataru Sonoyama and Yoshizo Matsuka and Takuo Kuboki",
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T1 - A retrospective comparative ten-year study of cumulative survival rates of remaining teeth in large edentulism treated with implant-supported fixed partial dentures or removable partial dentures

AU - Yamazaki, Seiya

AU - Arakawa, Hikaru

AU - Maekawa, Kenji

AU - Hara, Emilio satoshi

AU - Noda, Kinji

AU - Minakuchi, Hajime

AU - Sonoyama, Wataru

AU - Matsuka, Yoshizo

AU - Kuboki, Takuo

PY - 2013/7

Y1 - 2013/7

N2 - Purpose: This study aimed to compare the survival rates of remaining teeth between implant-supported fixed dentures (IFDs) and removable partial dentures (RPDs) in patients with large edentulous cases. The second goal was to assess the risk factors for remaining tooth loss. Materials and methods: The study subjects were selected among those who received prosthodontic treatment at Okayama University Dental Hospital for their edentulous space exceeding at least four continuous missing teeth. Twenty-one patients were included in the IFD group and 82 patients were included in the RPD group. Survival rates of remaining teeth were calculated in three subcategories: (1) whole remaining teeth, (2) adjacent teeth to intended edentulous space, and (3) opposing teeth to intended edentulous space. Results: The ten-year cumulative survival rate of the whole remaining teeth was significantly higher in the IFD group (40.0%) than in the RPD group (24.4%). On the other hand, there was no significant difference between two groups in the survival rate of teeth adjacent or opposing to intended edentulous space. A Cox proportional hazard analysis revealed that RPD restoration and gender (male) were the significant risk factors for remaining tooth loss (whole remaining teeth). Conclusions: These results suggest that IFD treatment can reduce the incidence of remaining tooth loss in large edentulous cases.

AB - Purpose: This study aimed to compare the survival rates of remaining teeth between implant-supported fixed dentures (IFDs) and removable partial dentures (RPDs) in patients with large edentulous cases. The second goal was to assess the risk factors for remaining tooth loss. Materials and methods: The study subjects were selected among those who received prosthodontic treatment at Okayama University Dental Hospital for their edentulous space exceeding at least four continuous missing teeth. Twenty-one patients were included in the IFD group and 82 patients were included in the RPD group. Survival rates of remaining teeth were calculated in three subcategories: (1) whole remaining teeth, (2) adjacent teeth to intended edentulous space, and (3) opposing teeth to intended edentulous space. Results: The ten-year cumulative survival rate of the whole remaining teeth was significantly higher in the IFD group (40.0%) than in the RPD group (24.4%). On the other hand, there was no significant difference between two groups in the survival rate of teeth adjacent or opposing to intended edentulous space. A Cox proportional hazard analysis revealed that RPD restoration and gender (male) were the significant risk factors for remaining tooth loss (whole remaining teeth). Conclusions: These results suggest that IFD treatment can reduce the incidence of remaining tooth loss in large edentulous cases.

KW - Implant-supported fixed denture

KW - Remaining teeth

KW - Removal partial denture

KW - Risk factor

KW - Survival rate

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