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On form and function in all-ceramic restorations
1Department of Prosthodontics, School of Oral Health Science, Faculty of Health Sciences, University of the Witwatersrand. Peter.Owen@wits.ac.za
Summary
All-ceramic restorations offer aesthetic and durable options for posterior teeth, though their long-term success rates are slightly lower than anterior restorations. Preparation and occlusal forms may need adaptation for optimal ceramic restoration performance.
Area of Science:
- Dental Materials Science
- Restorative Dentistry
- Biomaterials Engineering
Background:
- All-ceramic restorations are gaining popularity due to patient aesthetic demands and improved fabrication.
- Longevity of ceramic restorations is comparable to traditional plastic restorations in posterior teeth.
- Advancements in cementation and bonding have enhanced restoration longevity.
Purpose of the Study:
- To review evidence supporting all-ceramic restorations, especially for posterior teeth.
- To propose modifications in tooth preparation for dental ceramics.
- To suggest an alternative occlusal form based on evolutionary principles.
Main Methods:
- Literature review of existing evidence on all-ceramic restorations.
- Analysis of factors influencing the longevity of posterior ceramic restorations.
- Conceptual proposal for altered preparation and occlusal morphology.
Main Results:
- Posterior all-ceramic restorations show a slightly lower success rate than anterior ones.
- Success rates for posterior ceramic restorations tend to decrease over time.
- Current preparation and occlusal forms may not be optimal for dental ceramics.
Conclusions:
- All-ceramic restorations are a viable option for posterior teeth, but long-term success requires careful consideration.
- Tooth preparation design may need to be adapted to the properties of ceramic materials.
- A novel approach to occlusal morphology, considering natural tooth evolution, is proposed for better functional outcomes.
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