Overall general health that is good, without any contraindications regarding dental treatment. wear enamel CAD-CAM zirconia lithium disilicate In vivo
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Age of 18 years or older. 2. Overall general health that is good, without any contraindications regarding dental treatment. 3. Not having any present temporomandibular disorders or parafunctional habits. 4. First molar endodontically treated tooth with full crown needed and a minimum 1:1 crown-to-root ratio. 5. Healthy natural opposed antagonists not having crowns as well as two natural contralateral antagonistic molars, also not having crowns. Filling natural teeth will be allowed if at least one occlusal contact point is enamel. 6. Saliva flow that is not abnormal. 7. Willing and able to participate at any time as required.
Exclusion criteria
Exclusion criteria: 1. Systemic disease that is not well-controlled. 2. Poor plaque control or long-term periodontitis that has not been treated. 3. Active tooth decay, acute infection or periapical lesion. 4. Teeth that cannot be restored or teeth that can be restored but with a crown-to-root ratio that exceeds 1:1. 5. Evidence of temporomandibular disorders or parafunctional habits. 6. Insufficient volume or rate of flow of saliva, or a need for medications that reduce the salivary flow.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Wear of antagonist enamel at 24 months after end of the intervention Mean of volume loss and vertical loss | — |
Secondary
| Measure | Time frame |
|---|---|
| Wear of crown at 24 months after end of the intervention Mean of volume loss and vertical loss | — |
Countries
Thailand
Contacts
Department of Prosthodontics, Faculty of Dentistry, Mahidol University