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Journal of Craniomandibular Function
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J CranioMand Func 8 (2016), No. 1     22. Feb. 2016
J CranioMand Func 8 (2016), No. 1  (22.02.2016)

Open Access Page 9-20, Language: English/German


Short-term effects of two different oral devices on sleep bruxism management: a pilot study
Castroflorio, Tommaso / Casasco, Federica / Bargellini, Andrea / Giacone, Maria / Cugliari, Giovanni / Deregibus, Andrea
Background: Sleep bruxism (SB) can be associated with a number of clinical problems, including orofacial pain, tooth wear, and the failure of dental restorations. Based on these factors, a need emerged to define the best strategies to manage bruxism in the clinical setting.
Objectives: The aim of this pilot study was to evaluate the therapeutic efficacy of two different oral appliances (OAs) - an occlusal splint and a functional orthopedic appliance - in reducing SB episodes and orofacial pain.
Material and methods: Twenty-six subjects (9 non-bruxers, 17 bruxers) were selected for the study. Each subject was observed for 3 consecutive months, and monitored with a visual analog scale (VAS). Further, all subjects participated in an instrumental recording at home with a portable device (Bruxoff, OT Bioelettronica) to evaluate variation on SB activity through a simultaneous recording of electromyography (EMG) signals from both of the masseter muscles, as well as heart frequency. Intergroup and intragroup variances were analyzed by using a two-way ANOVA test. All statistical procedures were performed with SPSS Statistics V23.0 software (IBM). For each analysis, a P value of < 0.05 was set.
Results: Pain sensation significantly reduced, both for the stabilization splint and the functional orthopedic appliance group (P < 0.001) at the 3-month follow-up, with no differences between the two groups. SB episodes did not significantly reduce after 3 months (P < 0.005).
Conclusions: This study showed that both particular kinds of OAs could reduce patients' orofacial pain, but that neither appliance showed a statistically significant effect in reducing SB episodes. Further studies are needed on larger and more representative samples followed for a longer period to obtain significant information on SB management.

Keywords: sleep bruxism, masseter muscle, occlusal splint, functional device