Computerized analysis of occlusal contacts in bruxism patients treated with occlusal splint therapy

Abstract

PURPOSEOcclusal splints are commonly used to prevent tooth wear caused by bruxism. However, the effects of splints on occlusion are still unclear. Although it is rarely alluded in literature, splints can provoke severe occlusal alterations and other complications. This study was aimed to identify differences in the responses of individuals with bruxism and healthy individuals to a full-arch maxillary stabilization splint in terms of occlusal changes.MATERIALS AND METHODSOcclusal contacts in 20 (5 male, 15 female) bruxism patients and 20 (5 male, 15 female) controls with normal occlusion were evaluated before and after occlusal splint therapy. T-Scan III, a computerized occlusal analysis system, was used to simultaneously measure occlusion and disclusion times as well as left-right and anterior-posterior contact distributions before splint therapy and 3 months after therapy. Wilcoxon and Mann-Whitney U tests were used for statistical analyses (α=.05).RESULTSNo differences were found in the posterior contact of bruxism patients before and after stabilization splint treatment. However, differences in posterior contact were observed between bruxists and normal individuals prior to treatment, and this difference disappeared following treatment.CONCLUSIONThe results of this study showed the use of a stabilization splint may not have an effect on occlusion. However, the area of posterior occlusal contact among bruxists was found to be greater than that of normal individuals. According to this study, the clinical use of splints may be harmless.

Occlusion time analysis in military pilots affected by bruxism

“…Although it could be hypothesized this finding to be related with the dental abrasion, typical of subjects affected by bruxism, it seems particularly interesting to compare this result with the findings of Gumus et al . 25 that, as a secondary outcome of their study, similarly compared the OT of subjects affected by bruxism with a healthy group, without finding any statistically significant difference. Gumus et al .…”

“…24 demonstrated that subjects affected by temporomandibular disorders (TMD) have longer OT compared with healthy subjects suggesting that the presence of TMD is associated with a lower occlusal stability, while another study by Gumus et al . 25 investigated the effect of an occlusal splint treatment in subjects affected by bruxism on the occlusion time and other T-Scan parameters and observed the absence of influence of bruxism on the occlusion time.…”

Comparing implant supported mandibular overdenture with conventional complete denture regarding occlusion and disocclusion time using T scan

“…Occlusion time (OT) is the time from the first contact of occluding teeth to maximum intercuspation, and disocclusion time (DT) is the time from maximum intercuspation to complete disocclusion during lateral movement. (17)(18)(19) The clinical goal is to reach maximum intercuspation in less than 0.2 second and disocclude all posterior teeth in less than 0.4 second. (20) The shorter the OT, the less time required to contact all teeth and the fewer the prematurities as the patient closes into maximum intercuspation, indicating occlusal contact simultaneity and equilibration.…”

Impacto do bruxismo do sono na musculatura do sistema estomatognático: avaliação eletromiográfica, força de mordida, função mastigatória, ultrassonográfica e qualidade de vida

“…(retração e inflamação), a mucosa (marcas dos dentes na língua e bochecha), aos músculos (sensibilidade dolorosa, fadiga e hipertrofia) e ainda, cefaleia, ruídos audíveis de apertar e ranger dos dentes e os desenvolvidos pela articulação temporomandibular (ODEBRECHT; BORTOLON, 2004;MANZINI;KATO, 2005; AVIDAN et al, 2009;LOBBEZOO, 2009;DE LUCA CANTO et al, 2013;GÜMÜS et al, 2013; DE LUCA SUMIYA et al, 2014 O sono REM é mais profundo e representa cerca de 25% do período total de sono. Neste processo ocorre o aumento do fluxo sanguíneo, frequência cardíaca, atividade respiratória, temperatura corporal e pressão sanguínea, associado aos movimentos rápidos dos olhos (COLOMBO, 2002; KATO et al, 2011).…”

“…Os sinais e sintomas clínicos mais comuns evidenciados nos bruxômanos por profissionais da área de saúde estão relacionados aos dentes (hipersensibilidade, desgaste, mobilidade, anquilose, fraturas recorrentes de restaurações e reabsorção radicular), a gengiva (retração e inflamação), a mucosa (marcas dos dentes na língua e bochecha), aos músculos (sensibilidade dolorosa, fadiga e hipertrofia) e ainda, cefaleia, ruídos audíveis de apertar e ranger dos dentes e os desenvolvidos pela articulação temporomandibular (ODEBRECHT; BORTOLON, 2004;MANZINI;KATO, 2005;AVIDAN et al, 2009;LOBBEZOO, 2009;DE LUCA CANTO et al, 2013;GÜMÜS et al, 2013;DE LUCA SUMIYA et al, 2014).…”