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Evaluation of survival of 3 different fixed space maintainers

Emine Sen Tunc1, Sule Bayrak, Nuray Tuloglu

  • 1Department of Pediatric Dentistry, Faculty of Dentistry, Ondokuz Mayis University, Samsun, Turkey. sentunc@yahoo.com

Pediatric Dentistry
|September 28, 2012
PubMed

Insights

The band and loop fixed space maintainer demonstrated the longest survival time and highest success rate compared to direct bonded and fiber-reinforced composite types in pediatric patients. This study highlights the superior performance of band and loop space maintainers.

Area of Science:

  • Pediatric Dentistry
  • Orthodontics
  • Biomaterials

Background:

  • Space maintainers (SMs) are crucial in pediatric dentistry to preserve arch length after premature tooth loss.
  • Different types of SMs exist, including band and loop (B&L), direct bonded (DB), and fiber-reinforced composite (FRC), each with varying clinical performance characteristics.
  • Comparative data on the survival times and failure rates of these SMs is essential for clinical decision-making.

Purpose of the Study:

  • To comparatively evaluate the survival times and failure rates of different fixed space maintainer (SM) types.
  • To determine which SM design offers superior long-term clinical performance in children.

Main Methods:

  • A prospective study involving 30 children aged 4-10 years, divided into three groups based on SM type: B&L, DB, and FRC.
  • Clinical evaluations were conducted every 3 months for 1 year or until SM failure.
  • Survival times were analyzed using the Kaplan-Meier method, with Cox regression used to assess confounding factors.

Main Results:

  • The mean survival time was highest for B&L SMs (11.20 months), followed by DB SMs (9.20 months), and FRC SMs (6.70 months).
  • Statistically significant differences in survival rates were observed between the SM types (log rank test, P=.002).
  • Age, sex, dental arch, and jaw side did not significantly correlate with SM success.

Conclusions:

  • Band and loop fixed space maintainers exhibited superior performance regarding survival time and success rates compared to direct bonded and fiber-reinforced composite space maintainers.
  • The findings suggest that the B&L design is a more reliable option for space maintenance in the evaluated pediatric population.
  • Further research could explore long-term outcomes and patient-reported factors for different SM types.
Abstract

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