- The preferred type of dental cement for cementing all-ceramic crowns is resin cement.
- This preference is primarily due to its superior translucency, which allows the natural esthetics of the all-ceramic restoration to be preserved.
- Unlike traditional cements such as glass ionomer or zinc phosphate, resin cements have a highly esthetic, tooth-like optical quality that does not compromise the appearance of the restoration.

- Additionally, resin cements provide strong adhesion to both the tooth structure and the ceramic restoration, improving the longevity and retention of the crown.
- They also exhibit low solubility and high strength, which are critical for the durability of all-ceramic crowns subjected to occlusal forces.

In contrast, glass ionomer and zinc phosphate cements, although widely used, tend to be more opaque and may negatively affect the esthetic outcome by masking the translucency of the ceramic material. Polycarboxylate cement, while biocompatible and gentle to the pulp, lacks the necessary esthetic properties for use with all-ceramic restorations.

In summary, resin cement is the material of choice for all-ceramic crowns due to:
- Superior translucency enhancing esthetics
- Strong adhesive properties
- Durability and low solubility

Reference: Craig’s Restorative Dental Materials, 13th Edition, Chapter 9: Dental Cements / Page 220