NCT04539912

Clinical Efficacy of Angulated Screw-retained and Cemented Single Implant Crowns in Esthetic Region

Comparison of the Short-term Clinical Efficacy of Angulated Screw-retained and Cemented Single Implant Crowns in Esthetic Region: A Randomized Controlled Clinical Trial

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 60 (actual)
• Sponsor: Junyu Shi · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

Objective: To compare the clinical efficacy of angulated screw-retained and cemented single implant crowns(SIC) in esthetic region. Methods/Design: The study was a prospective, single center, randomized controlled clinical trial. Patients with the needs of single tooth restoration in esthetics region were recruited from Oct. 2018 to Aug. 2019. Sixty patients were enrolled in the present study and they were randomly assigned into two groups: angulated screw-retained group(AG, 30 patients) and cemented group (CG,30 patients). Clinical and radiological evaluations were performed on the day of final crowns delivery and 12 months later. Implant survival rate, marginal bone loss(MBL), pro-inflammatory cytokinesin peri-implant crevicular fluid (PICF)(TNF-α, IL-6), mechanical complications, peri-implant conditions(mPI, PD, BOP%), pink esthetics score/white esthetics score (PES/ WES) and patients satisfaction were assessed.

Conditions

• Angulated Screw-retained
• Esthetics

Interventions

Type	Name	Description
DEVICE	angulated screw retained crown	ASC abutment was used in AG;
DEVICE	cemented crown	prefabricated Ti abutment was used in CG

Timeline

• Start date: 2018-08-01
• Primary completion: 2019-08-01
• Completion: 2020-08-01
• First posted: 2020-09-07
• Last updated: 2020-09-07

Locations

1 site across 1 country: China