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Direct Resin Composite and Lithium Disilicate Endocrowns in Severely Compromised Endodontically Treated Molars: A
Maurits C F M de Kuijper1,2, Carline R G van den Breemer1, Yvonne C M de Waal1
1Department of Restorative Dentistry and Biomaterials, Center for Dentistry Orthodontics, The University of Groningen, University Medical Center Groningen, Groningen, the Netherlands.
Both direct resin composite and lithium disilicate endocrowns show excellent survival rates for restoring compromised molars. Lithium disilicate offered superior aesthetics and wear resistance, though patient satisfaction was similar for both dental restoration options.
Area of Science:
- Restorative Dentistry
- Dental Biomaterials
- Endodontics
Background:
- Structurally compromised endodontically treated molars require durable restorative solutions.
- Direct resin composite and lithium disilicate endocrowns are viable options for molar restoration.
- Clinical performance comparison is essential for evidence-based treatment planning.
Purpose of the Study:
- To compare the clinical performance of direct resin composite versus lithium disilicate endocrowns.
- To evaluate restoration survival, clinical quality, and patient satisfaction over 24 months.
- To determine if lithium disilicate endocrowns offer superior outcomes in compromised molars.
Main Methods:
- A prospective, randomized superiority controlled trial included 102 compromised molars.
- Teeth were randomized to receive direct resin composite or lithium disilicate endocrowns.
- Restoration survival (FDI score ≤ 4) and tooth survival were primary outcomes; patient satisfaction was assessed via questionnaire.
Main Results:
- Restoration survival rates were 98.0% for resin composite and 100.0% for lithium disilicate (p=0.32).
- Tooth survival was 100.0% in both groups.
- Lithium disilicate endocrowns demonstrated superior surface lustre, wear resistance, and mucosal health; patient satisfaction was comparable.
Conclusions:
- Both direct resin composite and lithium disilicate endocrowns provide effective restoration for compromised molars.
- Lithium disilicate endocrowns exhibit enhanced aesthetic and wear properties.
- Despite qualitative differences, patient satisfaction was similar, indicating both are acceptable short-term restorative options.