Related Experiment Video
Updated: Oct 22, 2025
04:35
Author Spotlight: Innovative Methodology for Implanting and Securing Neural Probes in the Rodent Spinal Cord
Published on: July 12, 2024
1.7K
The Piston Elastic: A Novel Device for Treating Entrapped Ectopic Permanent Molars
Ik-Hwan Kim1, Chung-Min Kang1, Je Seon Song1
1Department of Pediatric Dentistry, College of Dentistry, Yonsei University, Seoul 03722, Korea.
Children (Basel, Switzerland)
|August 27, 2021
Summary
A new "piston-elastic" device effectively unlocks entrapped permanent molars, preventing arch length reduction and eruption delays. This chairside-manufactured tool offers a simple, inexpensive solution for ectopic molar eruption, improving treatment outcomes.
Area of Science:
- Dentistry
- Orthodontics
- Pediatric Dentistry
Background:
- Ectopic eruption of permanent molars can impede primary tooth roots, reduce arch length, and delay permanent tooth eruption.
- Timely intervention is crucial for managing ectopic molar eruption and preventing complications.
Observation:
- A novel chairside-manufactured device, the "piston-elastic," was developed to facilitate the eruption of entrapped permanent molars.
- The device applies repulsive force to alter the eruption path by interacting with adjacent teeth.
Findings:
- Clinical application in three patients (ages 6, 13, and 16) demonstrated successful redirection of ectopically erupted maxillary and mandibular molars.
- The piston-elastic device effectively improved the eruption path of the entrapped teeth.
Implications:
- The piston-elastic offers a simple, convenient, and inexpensive chairside solution for managing ectopic molar eruption.
- This method eliminates the need for traditional impression and laboratory procedures, reducing treatment time and cost.
- The device provides a less irritating alternative to existing treatments for impacted molars.
