Rigidity evaluation of quartz-fiber splints compared with wire-composite splints

作者：Berthold Christine^*; Auer Friedrich Johannes; Potapov Sergej; Petschelt Anselm

来源：Dental Traumatology, 2012, 28(1): 65-74.

DOI：10.1111/j.1600-9657.2011.01031.x

Aim: To evaluate the influence of reinforcement material on in vitro dental splint rigidity. Materials and Methods: A custom-made artificial model was used. The central incisors simulated injured teeth with increased mobility, and the lateral incisors served as uninjured teeth with physiologic mobility. The Periotest and Zwick methods were used to assess horizontal and vertical tooth mobility before and after splinting, and relative splint effect (SpErel) was calculated. Teeth 1222 were splinted using two wire-composite splints (WCS), WCS1 (Dentaflex 0.45 mm), and WCS2 (Strengtheners 0.8 x 1.8 mm) as well as four quartz-fiber splints, QS1 (Quartz Splint UD 1.5 mm), QS2 (Quartz Splint Rope 1.5 mm), QS3 (Quartz Splint Woven 2.5 mm), and QS4 (dry fibers 667 tex). The influence of the splint type was evaluated using anova, Tukey range, and the Dunnett-T3 test (a = 0.05). To test the influence of initial tooth mobility, the t-test was applied (a = 0.05). Results: Reinforcement materials significantly influenced splint rigidity (P %26lt; 0.05). The horizontal and vertical SpErel of WCS1 compared with WCS2 and QFSs14 was statistically significant (P %26lt; 0.05). Significant differences were found when comparing the horizontal SpErel of WCS2 with WCS1 and QSs14 (P %26lt; 0.05). SpErels of the injured and uninjured teeth showed significant differences (P %26lt; 0.05). Conclusion: WCS1 is flexible compared with the more rigid WCS2 and QSs14. Initial tooth mobility influences SpErel. The flexible WCS1 can be recommended for splinting dislocation injuries whereas the semi-rigid/rigid WCS2 and QS14 can be used for horizontal root fractures and alveolar process fractures. The QS14 provide good esthetic outcome.

• 出版日期2012-2
• 单位河北医科大学