Rigidity of commonly used dental trauma splints

Area of Science:

• Dental Traumatology
• Biomaterials Science
• Orthodontics

Background:

• Dental immobilization techniques vary in rigidity based on trauma severity.
• Evaluating the mechanical properties of common dental splints is crucial for effective treatment.

Purpose of the Study:

• To assess and compare the in vitro rigidity of various commonly used dental splints.
• To determine the effectiveness of different splinting materials in managing tooth mobility.

Main Methods:

• An acrylic resin model with simulated injured and uninjured teeth was used.
• Tooth mobility (vertical and horizontal) was measured using a Periotest device before and after splinting.
• Four composite splints, three wire-composite splints, a titanium trauma splint, a titanium ring splint, a bracket splint, and two Schuchardt splints were evaluated.

Main Results:

• All splints significantly affected vertical and horizontal tooth mobility (P < 0.05).
• Composite splints showed the largest changes in vertical mobility for injured teeth; wire-composite splints 1 and 2 demonstrated the least.
• Flexible splints, including the titanium trauma splint and wire-composite splints 1 and 2, were identified for horizontal flexibility.

Conclusions:

• Flexible or semi-rigid splints (titanium trauma, wire-composite 1 & 2) are recommended for dislocation injuries and root fractures.
• Rigid splints (wire-composite 3, titanium ring) are appropriate for treating alveolar process fractures.
• Splint selection should be guided by trauma type and desired mechanical stability.