We are using cookies to implement functions like login, shopping cart or language selection for this website. Furthermore we use Google Analytics to create anonymized statistical reports of the usage which creates Cookies too. You will find more information in our privacy policy.
OK, I agree I do not want Google Analytics-Cookies
Quintessence International
Login:
username:

password:

Plattform:

Forgotten password?

Registration

Quintessence Int 40 (2009), No. 5     7. Apr. 2009
Quintessence Int 40 (2009), No. 5  (07.04.2009)

Online Article, Page 427, PubMed:19582235


Online Article: Mouthguard retention: Is design or accuracy of fit more critical?
Maeda, Yoshinobu / Yonehata, Yuri / Satoh, Hajime
Aim: To examine the influence of the accuracy of fit on mouthguard retention in relation to mouthguard outline location.
Materials and Methods: Mouthguards were fabricated on a fully dentate maxillary cast with 4-mm thick ethylene vinyl acetate sheets using a well-dried cast (VD) and on a wet cast (VW) with a vacuum-forming machine. Mouthguards were also made with a pressure-forming machine (P). The mouthguard outline was set at 4 mm from the cervical margin (control, C), the palatal outline was set at the cervical margin (Pa), and the buccal outline was extended to the buccal fold (Bu). A dislodging force perpendicular to the occlusal plane was applied at the first molar on the universal testing machine. Results were analyzed using ANOVA with Scheffe's test (P < .05).
Results: Using the VW, the retentive forces were statistically smaller at Pa compared to Ca or Bu (C: 58 ± 17 gf, Pa: 36 ± 7 gf , Bu: 50±8gf) (P < .05). There were no statistical differences between VD (C: 116±27gf, Pa: 86±15gf, Bu: 92±7gf) and group P (C: 133±31gf, Pa: 139±24gf, Bu: 136±17gf).
Conclusions: The results indicate that mouthguard retention is closely related to the accuracy of fit at the cervical undercut area rather than the outline location.

Keywords: accuracy of fit, cast, design, mouthguard, outline, retention