# Frictionless Mechanics for Correction of Bimaxillary Protrusion: A Case Report

## TL;DR

This case report describes a frictionless orthodontic technique to correct bimaxillary protrusion using a reverse closing loop.

## Contribution

The paper introduces a frictionless mechanical protocol for correcting bimaxillary protrusion.

## Key findings

- Bimaxillary protrusion can be effectively corrected using a frictionless approach.
- A reverse closing loop was used to retract anteriors during space closure.
- Frictionless mechanics may offer advantages over traditional friction-based methods.

## Abstract

The condition of bimaxillary protrusion is commonly seen by orthodontic practitioners in the course of our daily clinical work. It is characterized by both jaws being forwardly placed and increased prominence of the teeth along with lips. When there is a severe bimaxillary protrusion, it can be challenging to correct it effectively with maximum anchorage. In patients with protrusions or crowding, extraction therapy is often necessary. There are two ways to retract anteriors during extraction space closure: friction or frictionless. The present case report explains the frictionless mechanic protocol for the correction of bimaxillary protrusion using a reverse closing loop.