Relationship Between the Number of Occlusal Contacts and Masticatory Muscle Activity in Healthy Young Adults

Ferrario, Virgilio F.; Serrao, Graziano; Dellavia, Claudia; Caruso, Elisabetta; Sforza, Chiarella

doi:10.1080/08869634.2002.11746196

Cited by 81 publications

(79 citation statements)

References 21 publications

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“…While our study clearly pointed out that the analyzed occlusal indicators are an important factor in the modification of SEMG activity, the meaning of this change should be interpreted with caution: according to some investigations, a significant correlation exists between occlusal parameters (i.e: number/distribution of tooth contacts) and EMG parameters, including amplitude of the electric potentials and duration of contractile activity ( Naeije et al , 1989;Bakke et al , 1992;Ferrario et al , 2002;Trovato et al , 2009). This way, and whether this assumption should be further confirmed, SEMG variations with respect to MVC on natural dentition might also suggest alterations in the pattern of tooth contacts or in the occlusal relationships:…”

Section: Discussionmentioning

confidence: 59%

“…Surface electromyography (SEMG) is an important tool for analysis of muscular physio-pathological changes during orofacial static and dynamic activities (Hugger et al , 2008); changes in SEMG characteristics may indicate a modification in the occlusion parameters (Ferrario et al , 2002;Trovato et al , 2009). Several historical and more recent studies, where occlusal parameters were analyzed, suggested that the activity of the masticatory muscles at maximum efforts depends on occlusal factors such as the numbers of posterior occlusal contacts (Helkimo et al , 1977;Bakke, 1993;Kerstein, 2004).…”

Section: Introductionmentioning

confidence: 99%

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Effect of different dental articulating papers on SEMG activity during maximum clenching

Augusti

et al. 2015

Journal of Electromyography and Kinesiology

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Section: Discussionmentioning

confidence: 59%

Section: Introductionmentioning

confidence: 99%

Effect of different dental articulating papers on SEMG activity during maximum clenching

Augusti

et al. 2015

Journal of Electromyography and Kinesiology

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“…7 Some studies 7,28,29 reported a positive correlation between activity of the masticatory muscles and the number of occlusal contacts. In this research, however, the characteristics of dental occlusion and the number of occlusal contacts were not considered.…”

Section: Isotonic Contractionmentioning

confidence: 99%

Electromyographic Activity of Masseter and Temporal Muscles with Different Facial Types

Vianna-Lara

Cária

Tosello

et al. 2009

The Angle Orthodontist

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Objectives:To compare the electromyographic (EMG) activity of the masseter and anterior portion of temporal muscles in different vertical facial types. Materials and Methods: Clinical examination, cephalometric analysis, and electromyographic examination were performed in 44 volunteers ranging from 18 to 35 years old. The volunteers were classified on the basis of their vertical facial characteristics into three groups-brachyfacial, mesofacial, and dolicofacial-by the grouping analysis. The EMG records were obtained with three repetitions during mandibular rest, maximum voluntary contraction in intercuspidation, and simultaneous bilateral isotonic contraction. The Kolmogorov-Smirnov and Levene tests were applied to verify the normality and homogeneity of variance. Analysis of variance and the Kruskal-Wallis test identified statistical differences among groups that did not present normality and homogeneity of distribution, respectively. Significance for all statistical tests was set at P Ͻ .05. Results: At rest, only the right temporal and masseter muscles presented statistically significant differences among the groups. The differences were observed between groups 1 and 2 (P ϭ .02) and 1 and 3 (P ϭ .038) for the right temporal muscle, and between groups 1 and 2 (P ϭ .029) for the right masseter muscle. Generally, group 1 presented the lowest EMG values for the four muscles evaluated during rest. For isotonic evaluation, none of the groups of muscles presented statistically significant differences. Conclusion: Different vertical facial types do not determine distinct patterns of EMG activity for the masseter and anterior portion of temporal muscles during rest and bilateral mastication. (Angle Orthod. 2009;79:515-520.)

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“…In Class II Division 1 there are no contact between anterior teeth (canine to canine), so only posterior contacts were considered, 246 contacts of the 13 subjects with Class II Division 1 showed an average of 22.19 11 with an average of 13.0. Considering that these studies were developed in conditions of normal occlusion and using different methodologies as indirect determination of the occlusal contacts using interocclusal records, T-Scan or using different types of articulation papers, even so this research has reported results without significant differences when compared with other studies mentioned above.…”

Section: Discussionmentioning

confidence: 99%

Study of the number of occlusal contacts in maximum intercuspation before orthodontic treatment in subjects with Angle Class I and Class II Division 1 malocclusion

Watanabe-Kanno

Abrão

2012

Dental Press J. Orthod.

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OBJECTIVE: Define and compare numbers and types of occlusal contacts in maximum intercuspation. METHODS: The study consisted of clinical and photographic analysis of occlusal contacts in maximum intercuspation. Twenty-six Caucasian Brazilian subjects were selected before orthodontic treatment, 20 males and 6 females, with ages ranging between 12 and 18 years. The subjects were diagnosed and grouped as follows: 13 with Angle Class I malocclusion and 13 with Angle Class II Division 1 malocclusion. After analysis, the occlusal contacts were classified according to the established criteria as: tripodism, bipodism, monopodism (respectively, three, two or one contact point with the slope of the fossa); cuspid to a marginal ridge; cuspid to two marginal ridges; cuspid tip to opposite inclined plane; surface to surface; and edge to edge. RESULTS: The mean number of occlusal contacts per subject in Class I malocclusion was 43.38 and for Class II Division 1 malocclusion it was 44.38, this difference was not statistically significant (p>0.05). CONCLUSIONS: There is a variety of factors that influence the number of occlusal contacts between a Class I and a Class II, Division 1 malocclusion. There is no standardization of occlusal contact type according to the studied malocclusions. A proper selection of occlusal contact types such as cuspid to fossa or cuspid to marginal ridge and its location in the teeth should be individually defined according to the demands of each case. The existence of an adequate occlusal contact leads to a correct distribution of forces, promoting periodontal health

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Relationship Between the Number of Occlusal Contacts and Masticatory Muscle Activity in Healthy Young Adults

Cited by 81 publications

References 21 publications

Effect of different dental articulating papers on SEMG activity during maximum clenching

Effect of different dental articulating papers on SEMG activity during maximum clenching

Electromyographic Activity of Masseter and Temporal Muscles with Different Facial Types

Study of the number of occlusal contacts in maximum intercuspation before orthodontic treatment in subjects with Angle Class I and Class II Division 1 malocclusion

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