A Randomized Controlled Clinical Trial of Conventional and Immediately Loaded Tapered Implants with Screw-Retained Crowns

Purpose: Surgical, prosthodontic, and esthetic outcomes of conventional and immediately loaded, single, tapered, roughened-surface Southern implants in the anterior maxilla that were restored with screw-retained crowns were compared over 1 year. Materials and Methods: Standardized surgical and prosthodontic procedures were followed and accepted criteria were used for assessment. Results: There were no significant differences within or between the control and test groups for age, gender, bone quality or quantity, implant stability measurements at surgery, or implant length. Conclusion: After 1 year, the implants that had been immediately loaded with single provisional crowns at surgery and definitive crowns 8 weeks later were as successful as conventionally loaded 2-stage implants.