A study on self centering of face bows.

Area of Science:

• Dental mechanics
• Orthodontic device testing

Background:

• The Hanau spring bow has been utilized in dental applications since 1986.
• It is purported to maintain self-centering properties in both patient and articulator positioning.
• Lack of empirical evidence and a dedicated testing device has hindered verification of this claim.

Purpose of the Study:

• To investigate and validate the self-centering property of the Hanau spring bow.
• To address the absence of documented evidence regarding its claimed functionality.

Main Methods:

• A novel testing device was exclusively designed for this study.
• The device incorporates a platform, stops, and a distance measuring system.
• The Hanau spring bow was subjected to testing using this specialized apparatus.

Main Results:

• The study successfully demonstrated the self-centering capability of the Hanau spring bow.
• Empirical data confirmed the device's ability to maintain self-centering.

Conclusions:

• The Hanau spring bow exhibits a verifiable self-centering property.
• This study provides the first documented evidence confirming the device's key functional claim.