Maximal bite force and its association with temporomandibular disorders

Pereira‐Cenci, Tatiana; Pereira, Luciano José; Cenci, Maximiliano Sérgio; Bonachela, Wellington Cardoso; Cury, Altair Antoninha Del Bel

doi:10.1590/s0103-64402007000100014

Cited by 46 publications

(36 citation statements)

References 16 publications

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“…The fracture load values presented for all tested restorations were greater than the reported maximum mastication force (143.9 N) in the anterior region. [21] The fracture test also gives valuable information concerning the load-bearing capacity because of the linear relationship between fatigue and static loading. [22]…”

Section: Discussionmentioning

confidence: 99%

Fracture behavior of single-structure fiber-reinforced composite restorations

Nagata

Garoushi

Vallittu

et al. 2016

Acta Biomaterialia Odontologica Scandinavica

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Objective: The applications of single-structure fiber-reinforced composite (FRC) in restorative dentistry have not been well reported. This study aimed to clarify the static mechanical properties of anterior crown restorations prepared using two types of single-structure FRC. Materials and methods : An experimental crown restoration was designed for an upper anterior incisor. The restorations were made from IPS Empress CAD for CEREC (Emp), IPS e.max® CAD (eMx), experimental single-structure all-FRC (a-FRC), Filtek™ Supreme XTE (XTE), and commercially available single-structure short-FRC (everX Posterior™) (n = 8 for each material) (s-FRC). The a-FRC restorations were prepared from an experimental FRC blank using a computer-aided design and manufacturing (CAD/CAM) device. A fracture test was performed to assess the fracture load, toughness, and failure mode. The fracture loads were vertically applied on the restorations. The surface micromorphology of the FRC restorations was observed by scanning electron microscopy (SEM). The data were analyzed by analysis of variance (p = .05) followed by Tukey's test. Results : s-FRC showed the highest mean fracture load (1145.0 ± 89.6 N) and toughness (26.2 ± 5.8 Ncm) among all the groups tested. With regard to the micromorphology of the prosthetic surface, local crushing of the fiberglass was observed in s-FRC, whereas chopped fiberglass was observed in a-FRC. Conclusions : The restorations made of short-FRC showed a higher load-bearing capacity than those made of the experimental all-FRC blanks for CAD/CAM. The brittle-like fractures were exhibited in the recent dental esthetic materials, while local crushing fractures were shown for single-structure FRC restorations.

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Section: Discussionmentioning

confidence: 99%

Fracture behavior of single-structure fiber-reinforced composite restorations

Nagata

Garoushi

Vallittu

et al. 2016

Acta Biomaterialia Odontologica Scandinavica

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“…Lower MBF values in patients with TMD are associated with reduced endurance of masticatory muscles during submaximal stress 11 . Pereira Cenci et al argue that there are no differences between MBF in patients with TMD and healthy subjects 12 . Therefore, it is unclear how TMD affects MBF.…”

Section: Introductionmentioning

confidence: 99%

Assessment of the impact of temporomandibular disorders on maximum bite force

Todić¹,

Martinovic²,

Pavlovic³

et al. 2019

Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub

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Aim. Temporomandibular disorders (TMD) refer to functional disorders of the masticatory system, temporomandibular joint (TMJ) and masticatory muscles. The main objective of this study was to determine whether and to what extent temporomandibular disorders (TMD) affect the maximum bite force (MBF). Methods. The present study included subjects with and without temporomandibular disorder. The presence of TMD was assessed by means of the Helkimo clinical dysfunction index analysis. We measured the maximum bite pressure (MBP) and occlusal contact area (OCA) by means of a Fuji Prescale Pressure measurement film. Based on the MBP and OCA values obtained, MBF values were determined. Results. The MBF values were significantly lower in patients with TMD compared to subjects without TMD (P<0.0005). MBF values demonstrate a trend, with a tendency towards a decrease in values with the increase in the severity of TMD (P <0.01). OCA was significantly lower in patients with TMD (P<0.05). There was no significant difference between controls and patients with TMD in terms of the MBP (P=0.135). Conclusion.TMDs have a significant impact on MBF and masticatory muscle action potential. More research is needed to determine the impact of reduced maximum bite force on the functional efficiency of the masticatory system.

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“…Conversely, other authors did not observe significant difference between the group with TMD and the group without dysfunction, in relation to MBF. These authors measured the MBF at the region of central incisors and first molars unilaterally, according to the masticatory preference (25) , thus it is important to consider the differences in methodology between studies. However, the relationship between MBF and TMD was scarcely investigated in individuals with DFD, highlighting the originality of the present findings.…”

Section: Discussionmentioning

confidence: 99%

A influência de sintomas da disfunção temporomandibular na força máxima de mordida em indivíduos com deformidade dentofacial

Passos¹,

Prado²,

Nary-Filho

et al. 2017

Audiol., Commun. Res.

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Introduction: Individuals with dentofacial deformity (DFD) show impairment in dental occlusion, which may alter the masticatory performance and, consequently, the bite force. No research was found on the relationship between temporomandibular disorders (TMD) and bite force for this population. Purpose: To determine if the presence of TMD symptoms influence the maximum bite force (MBF) in individuals with DFD. Methods: Sixty individuals were evaluated, 30 with DFD (GDFD) and 30 with normal occlusion (CG). The TMD was assessed by an anamnesis questionnaire (AQ) containing 10 questions that allow classification of the presence and degree of signs and symptoms of TMD. MBF was assessed using a mandibular force sensor, of the EMG System 810c electromyograph. Three records of bite force were obtained, with 10-second duration each. The Spearman correlation coefficient was used, at a significance level of 5%. Results: The results of AQ showed higher prevalence of TMD symptoms in GDFD in relation to CG. Also, lower MBF was observed in subjects with DFD compared to CG. In addition, negative and significant correlations were found between scores obtained in the application of AQ and the MBF; therefore, the higher the severity of TMD symptoms, the lower the bite force. Conclusion: The presence and severity of TMD symptoms influenced the MBF in individuals with DFD, demonstrating the importance for interdisciplinary intervention during all stages of surgical-orthodontic treatment.

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Maximal bite force and its association with temporomandibular disorders

Cited by 46 publications

References 16 publications

Fracture behavior of single-structure fiber-reinforced composite restorations

Fracture behavior of single-structure fiber-reinforced composite restorations

Assessment of the impact of temporomandibular disorders on maximum bite force

A influência de sintomas da disfunção temporomandibular na força máxima de mordida em indivíduos com deformidade dentofacial

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