Evaluation of the occlusal contact of crowns fabricated with the bite impression method
| Autor: | Sachi, Makino, Daizo, Okada, Chiharu, Shin, Reiko, Ogura, Masaomi, Ikeda, Hiroyuki, Miura |
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| Rok vydání: | 2013 |
| Předmět: |
Male
Tooth Nonvital Dental Articulators Dental Impression Technique Crowns Siloxanes Alginates Surface Properties Dental Impression Materials Occlusal Adjustment Dental Abutments Middle Aged Tooth Preparation Prosthodontic Calcium Sulfate Molar Models Dental Dental Occlusion Dental Prosthesis Design Jaw Relation Record Humans Female Polyvinyls Colloids Post and Core Technique |
| Zdroj: | Journal of medical and dental sciences. 60(3) |
| ISSN: | 2185-9132 |
| Popis: | In prosthodontic treatment, reconstruction of a proper occlusal contact relationship is very important as well as reconstruction of a proper interproximal relationship and marginal fitness. Unfortunately, occlusal relationships are sometimes lost in the process of occlusal adjustment of crowns. The purpose of this study was to compare the occlusal contacts of single crown fabricated by two different types of impression techniques. Nine subjects, whose molars required treatment with crown restoration, were enrolled in this study. Full cast crowns were fabricated using two types of impression techniques: the conventional impression method (CIM) and the bite impression method (BIM). The occlusal contacts of crowns were precisely evaluated at the following stages: after occlusal adjustment on the articulator (Step 0), before occlusal adjustment in the mouth (Step 1), after occlusal adjustment at the intercuspal position (Step 2), and after occlusal adjustment during lateral and protrusive excursions (Step 3). The number of occlusal contacts of the crowns on the functional cusps fabricated with BIM was significantly greater than that with CIM after occlusal adjustment. For this reason, the crowns fabricated with BIM might have a more functionally desirable occlusal surface compared to the crowns fabricated with CIM. |
| Databáze: | OpenAIRE |
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