A prospective study on single tooth reconstructions using parallel walled implants with internal connection...

Area of Science:

• Dental Implantology
• Prosthodontics
• Oral Surgery

Background:

• A novel internal connection implant (NobelParallel CC) was introduced in 2015, facilitating angulated screw channels.
• This design aims to reduce reliance on non-authentic components and minimize risks associated with cemented single crowns, such as marginal bone loss.

Purpose of the Study:

• To assess the clinical outcomes of the NobelParallel CC straight-walled implant in single-tooth replacements in the anterior maxilla.
• To determine the necessity and efficacy of using angulated screw channel (ASC) abutments in these cases.

Main Methods:

• A prospective study involving patients needing single maxillary incisor or canine replacement with implants.
• Implants were placed using a two-stage surgical protocol, with follow-up extending to 1, 3, and 5 years post-prosthetic crown delivery.
• Key outcome measures included implant survival, marginal bone levels, complications, and the incidence of ASC use.

Main Results:

• The study included 47 patients and 51 implants, with a 98.0% implant survival rate.
• Mean marginal bone level at crown placement was 0.41 mm, with a mean resorption of 0.41 mm at the 1-year follow-up.
• Angulated screw channel abutments were utilized in 42 out of 49 implant sites.

Conclusions:

• The NobelParallel CC implant system, in conjunction with ASC abutments, demonstrated favorable clinical performance.
• No significant complications were observed, suggesting a reliable treatment option for anterior maxillary single-tooth restorations.