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One-Piece CAD/CAM Abutment for Screw-Retained Single- Tooth Restorations: A 5-Year Prospective Cohort Study
Summary
Ceramic-coated CAD/CAM titanium abutments demonstrate excellent 5-year clinical performance for single crowns. These implant-supported restorations maintain bone levels and provide high patient satisfaction with esthetics and soft tissue health.
Area of Science:
- Dental Implantology
- Biomaterials Science
- Prosthodontics
Background:
- Dental implant-supported prostheses are crucial for restoring function and aesthetics.
- Advancements in materials and digital technologies, such as CAD/CAM, aim to improve implant outcomes.
- Ceramic coatings on titanium abutments offer potential benefits in biocompatibility and aesthetics.
Purpose of the Study:
- To evaluate the long-term clinical performance of dental implants restored with ceramic-coated CAD/CAM titanium abutments.
- To assess peri-implant health, marginal bone level changes, and esthetic outcomes over a 5-year period.
Main Methods:
- Thirty patients received 30 single-crown restorations supported by ceramic-coated CAD/CAM titanium abutments.
- Clinical parameters including Plaque Index, bleeding on probing, pocket probing depth, and marginal bone level were recorded at baseline, 2 years, and 5 years.
- Pink and white esthetic scores (PES/WES) were also evaluated to assess patient-reported outcomes.
Main Results:
- A 100% implant survival rate was observed over the 5-year follow-up period, with no signs of peri-implant infection.
- Peri-implant soft tissues remained healthy, with minimal bleeding on probing reported in most patients.
- A mean marginal bone loss of 0.263 ± 0.368 mm was recorded at 5 years, and high esthetic scores indicated satisfactory patient outcomes.
Conclusions:
- Implant-prosthetic rehabilitations utilizing ceramic-coated CAD/CAM titanium abutments for single crowns are clinically valid.
- The study supports the long-term success, stability of marginal bone levels, and positive periodontal and esthetic outcomes associated with these restorations.
