Reduction of Masticatory Muscle Activity by Restoring Canine Guidance

Study Overview
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Brief Summary
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In this study it is to be evaluated wether a restoration with composite resin fillings to reestablish a canine guidance will reduce masticatory muscle activity in patients with bruxism.

Detailed Description
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30 patients showing clinical symptoms of bruxism receive treatment within this clinical trial. Typical symptoms like pain or tenseness of the masticatory muscles, headache or abrasions are mandatory preconditions. Exclusion criteria are a present treatment with a biteguard or a sufficient canine guidance. In the first session a detailed history, a dental status and a clinical functional status are recorded. The baseline situation is documented by taking impressions with alginate of the maxilla and mandible for diagnostic study models. Following this procedure a first measurement of the muscular activity is conducted for seven days with the Grindcare device. After four weeks without any intervention a second measurement is conducted again for seven days. In the next session the canine cusps are restored with composite fillings. Finally a sufficient canine guidance should be present. In the same session a second impression of the maxilla is taken. A third measurement is conducted, again followed by four weeks without any intervention. At last another impression of the maxilla is obtained and a final measurement for seven days is conducted. At the first examination and after the third measurement of the masticatory muscle activity the patients fill out the questionnaire of the Oral Health Impact Profile in order to allow for the assessment of possible functional restraints and mental interferences.

Official Title
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Reduction of Masticatory Muscle Activity by Restoring Canine Guidance With Composite Resin Fillings in Patients With Bruxism.

Conditions
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Bruxism, Myopathy, Muscular Activity

Intervention / Treatment
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* Other: Composite resin restoration


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: patients show signs of bruxism no canine guidance is present no prosthodontic restorations of the canine are present Exclusion Criteria: a sufficient canine guidance is present
Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Intervention Model: Single Group Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Composite resin restoration<br>A canine guidance is reestablished by additive composite resin restorations of the canine cusp. | Other: Composite resin restoration<br>* Masticatory muscular activity is measured before and after treatment with additive composite resin fillings (Tetric EvoCeram, Ivoclar Vivadent, Schaan, Liechtenstein). A Grindcare (Medotech A/S, Herlev, Denmark) device is used for determination of muscular activity. A first measurement is conducted, followed by 4 weeks without any intervention. A second measurement is then carried out before restoration of the canine cusps with composite fillings. A third measurement is conducted, again followed by 4 weeks without any intervention. At last a final measurement is conducted.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Reduction of masticatory muscular activity | Masticatory muscular activity is measured before and after treatment with additive composite resin fillings (Tetric EvoCeram, Ivoclar Vivadent, Schaan, Liechtenstein). A Grindcare (Medotech A/S, Herlev, Denmark) device is used for determination of muscular activity. | 13 weeks | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Bruxism