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Quantitative Polygraphic Controlled Study on Efficacy and Safety of Oral Splint Devices in Tooth-grinding Subjects

¹ Département de Restauration, Prosthodontics Postgraduate Program, Faculté de médecine dentaire, Université de Montréal, C.P. 6128, Succursale Centre-ville, Montréal (Québec) H3C 3J7, Canada; and
² Centre d’étude du sommeil, Hôpital du Sacré-Cur de Montréal, Canada;

View larger version (91K): [in a new window]   Figure 1. Photographs of the occlusal splint (a,b) and palatal control device (c,d) on model and in mouth, respectively.

View larger version (14K): [in a new window]   Figure 2. Comparison among baseline (B), occlusal splint (OS), and palatal control device (PCD) nights for the number of (a) bruxism episodes per hour, (b) episodes with tooth-grinding noise, and (c) bursts per hour. Median is shown for episodes/hr, since the data distribution was not normal; otherwise, means ± SEM are shown (nine subjects). * p 0.05 when compared with baseline value (details in Table).

View larger version (15K): [in a new window]   Figure 3. Individual data distribution for the number of bruxism episodes per hr for baseline (B), occlusal splint (OS), and palatal control device (PCD) nights. The median is circled. A decrease more important than night-to-night variability (25%) was observed for six and five patients, respectively, when occlusal splint and palatal control device nights were compared with the baseline night.