Advantages:

• Esthetics: Cement-retained crowns do not have visible access holes, resulting in a more natural appearance, especially in the anterior region.
• Angulation flexibility: They are less dependent on implant angulation since the crown can be oriented independently of the implant’s angle.
• Easier to achieve passive fit: Cement-retained crowns offer a passive fit, reducing stress on the implant components and potentially extending the longevity of the restoration.

Limitations:

• Cement retention issues: Excess cement can be difficult to clean around the implant, especially if subgingival, and may lead to peri-implantitis or inflammation.
• Difficult to retrieve: If any adjustments, repairs, or abutment changes are needed, cemented crowns are more challenging to remove and may require crown removal or cutting.
• Subgingival margins: Cement-retained crowns often have subgingival margins, which can make cement removal difficult and increase the risk of peri-implant disease if any cement is left behind.