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Effects of Implant Placement Depth (4 mm Versus 6 mm) on Crestal Bone Stability in Immediate Implant Placement: A Clinical Study With 1-Year Post-Restorative Results
Sponsor: Tomas Linkevicius
Summary
The aim of a study was to analyze the effect of implant placement depth (4 mm versus 6 mm below the mid-facial gingival margin) on marginal bone loss (MBL) around implant and implant stability during immediate implant placement after tooth extraction. Clinical trial was conducted involving 35 patients requiring immediate implant placement after tooth extraction. Implants were placed either 4 mm (control group) or 6 mm (test group) below the mid-facial gingival margin. Primary outcome was deemed to be radiographic assessment of marginal bone level from periapical radiographs. Secondary outcome was implant stability quotient registration using resonance freaquency analyzer. The null hypothesis is that there is no significant difference in peri-implant marginal bone loss between implants placed at 4 mm depth versus 6 mm depth relative to the buccal gingival margin during immediate implant placement.
Key Details
Gender
All
Age Range
18 Years - Any
Study Type
INTERVENTIONAL
Enrollment
35
Start Date
2021-02-08
Completion Date
2024-09-16
Last Updated
2026-05-08
Healthy Volunteers
No
Conditions
Interventions
Implants were positioned 4 mm below the mid-facial gingival margin
Tooth was carefully extracted and implant was placed 4 mm below free gingival margin of the extracted tooth.
Implant was placed 6 mm below free gingival margin
Tooth was extracted and dental implant placed 6 mm below free gingival margin of the extracted tooth.
Locations (1)
Lithuanian University of Health Sciences
Kaunas, Lithuania