دورية أكاديمية
أعرض في EDS

Does increasing vertical dimension of occlusion in centric relation affect muscular activity? An electromyographic study.

التفاصيل البيبلوغرافية
العنوان: Does increasing vertical dimension of occlusion in centric relation affect muscular activity? An electromyographic study.
المؤلفون: Poggio CE; Eastman Institute of Oral Health, University of Rochester, New York, USA.; Studio Poggio, Private Practice, Milan, Italy., Manfredini D; Orofacial Pain Unit, School of Dentistry, Department of Medical Biotechnologies, University of Siena, Siena, Italy.
المصدر: Journal of esthetic and restorative dentistry : official publication of the American Academy of Esthetic Dentistry ... [et al.] [J Esthet Restor Dent] 2024 Jan; Vol. 36 (1), pp. 231-238. Date of Electronic Publication: 2023 Dec 18.
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: Wiley-Blackwell Country of Publication: England NLM ID: 101096515 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1708-8240 (Electronic) Linking ISSN: 14964155 NLM ISO Abbreviation: J Esthet Restor Dent
أسماء مطبوعة: Publication: London : Wiley-Blackwell
Original Publication: Hamilton, Ontario : BC Decker, c2001-
مواضيع طبية MeSH: Muscle Contraction*/physiology , Dental Occlusion*, Humans ; Centric Relation ; Vertical Dimension ; Electromyography/methods
مستخلص: Objective: In many esthetic treatments, clinicians may consider the option to modify the maxillo mandibular position. A raise of the vertical dimension of occlusion (VDO) may help restore esthetics, increase the space for dental materials, and reduce the invasiveness of dental procedures. Traditionally, VDO increases are done by using the centric relation (CR) position. Despite a long history of use, the neuromuscular effects of different maxillo mandibular relations are not fully studied. The aim of this study was to investigate the effect of alterations of maxillo-mandibular relation from maximal intercuspal position (MIP) to a raised VDO CR position on jaw-elevator muscle activity.
Materials and Methods: Fifteen healthy individuals were asked to carry out maximal voluntary clenching (MVC) in MIP and in CR on individual splints. Electromyographic (EMG) activity of the masseter and anterior temporalis muscles was assessed in μV as the root mean square of the amplitude. Specific indexes and ratios were also computed. Data analyzed in MIP and CR were compared by paired student's t-tests.
Results: MVC levels were not negatively affected by a VDO increase in CR position. On the contrary masseter muscles showed a statistically significant increase (p < 0.005). No significant effect on the anterior temporalis was observed.
Conclusion: These results suggest that no immediate negative effect on maximum voluntary clenching was induced by a VDO increase in CR position. A slight increase observed in EMG clenching levels could be explained by the increase in VDO when clenching on the splint.
Clinical Implications: The results of this study support the use of CR position as a pragmatic reference position due to the absence of relevant or negative changes in neuromuscular function.
(© 2023 Wiley Periodicals LLC.)
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فهرسة مساهمة: Keywords: CR; EMG; VDO; occlusion; oral rehabilitation
تواريخ الأحداث: Date Created: 20231218 Date Completed: 20240123 Latest Revision: 20240123
رمز التحديث: 20240123
DOI: 10.1111/jerd.13186
PMID: 38108570
قاعدة البيانات: MEDLINE
الوصف
تدمد:1708-8240
DOI:10.1111/jerd.13186