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[Restoration materials in overdenture abutment teeth].

H M Keltjens1, T J Creugers, M A van 't Hof

  • 1Vakgroep Orale Functieleer, Katholieke Universiteit Nijmegen.

Nederlands Tijdschrift Voor Tandheelkunde
|June 1, 2001
PubMed
Summary

This study compared amalgam, resin composite, and glass ionomer cement for overdenture abutment teeth. No significant differences were found in the survival rates of these restorative materials for sealing root canal orifices.

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Area of Science:

  • Dentistry
  • Prosthodontics
  • Restorative Dentistry

Background:

  • Overdenture abutment teeth require effective sealing of root canal orifices to ensure long-term success.
  • The choice of restorative material can influence the longevity and performance of these restorations.

Purpose of the Study:

  • To evaluate and compare the clinical performance of amalgam, resin composite, and resin-modified glass ionomer cement when used to seal root canal orifices in overdenture abutment teeth.

Main Methods:

  • 155 restorations were placed in 49 patients using one of the three materials, randomly assigned.
  • Patients received regular follow-ups every six months and a consistent preventive care regimen.
  • Restoration survival was assessed at two levels: complete survival (Scomp) and survival of the original restoration (Sorig).

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Main Results:

  • Overall survival rates were calculated as 63% +/- 6% for Sorig and 57% +/- 6% for Scomp.
  • No statistically significant differences in survival were observed among the three restorative materials at either assessment level.
  • Failure distribution suggested patient-specific factors may influence restoration outcomes.

Conclusions:

  • Amalgam, resin composite, and resin-modified glass ionomer cement demonstrate comparable survival rates for sealing overdenture abutment tooth root canal orifices.
  • The study did not identify a superior restorative material for this specific clinical application.
  • Patient-dependent factors appear to play a role in the success of these restorations.