Related Experiment Video
Updated: Jun 28, 2025

Author Spotlight: Insights into an Efficient Murine Maxillary Orthodontic Model Protocol
Published on: October 27, 2023
Uprighting a mesially impacted mandibular second molar with scissor bite using simple tubes
Shin-Gu Kang1, Sung-Hoon Lim1, Hye-Min Kim1
1Department of Orthodontics, College of Dentistry, Chosun University, Gwangju, Korea.
Abstract:
Orthodontic uprighting or traction of an impacted mandibular second molar often necessitates invasive interventions. This report aims to illustrate the utilization of nickel-titanium wire segments inserted into small, simple tubes for uprighting mesially impacted mandibular second molars and also for scissor bite correction. The term "simple tube" refers to a tube without a bonding base attached to a tooth surface by covering it with flowable composite resin. Due to the absence of a bonding base, the simple tube is characterized by its diminutive size and minimal profile height, facilitating placement on partially exposed second molars and unconventional positioning to adjust the force geometry. In this case study, mesially-impacted mandibular second molars with scissor bite were uprighted in a 21-year-old male utilizing simple tubes. Simple tubes can be used for molar uprighting and scissor bite correction buccally and lingually.

