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Do Immediate Implants Exhibit Deeper Vertical Positioning Than Delayed Implants? Radiographic Findings and Clinical
Adam Aboukhalil1, Ronald Younes1
1Department of Oral Surgery, Faculty of Dental Medicine, Saint Joseph University of Beirut, Beirut, Lebanon.
Journal of Maxillofacial and Oral Surgery
|August 4, 2025
Summary
Immediate dental implants are placed deeper than delayed implants, influencing their final position. This study measured implant depth after placement to understand timing effects.
Area of Science:
- Dental Implantology
- Oral Surgery
- Biomaterials Science
Background:
- Implant timing is crucial for successful osseointegration and long-term outcomes.
- Understanding insertion depth variations between immediate and delayed implants is essential for predictable vertical positioning.
Purpose of the Study:
- To evaluate the impact of implant placement timing (immediate vs. delayed) on the insertion depth of dental implants.
- To compare the vertical position of immediate implants versus delayed implants immediately post-placement.
Main Methods:
- A retrospective study of 76 dental implant cases, divided into immediate (n=41) and delayed (n=35) placement groups.
- Insertion depth was measured using radiographs and ImageJ software, referenced to adjacent teeth's cemento-enamel junction.
- Statistical analysis included Shapiro-Wilk, ANOVA, and independent-samples t-tests to compare groups.
Main Results:
- Immediate implants demonstrated significantly greater insertion depth (mean 4.96 mm) compared to delayed implants (mean 3.38 mm).
- No significant correlation was found between insertion depth and implant site or length for immediate implants.
- No significant correlation was found between insertion depth and implant site for delayed implants.
Conclusions:
- Immediate implant placement results in a deeper insertion and more apical vertical position compared to delayed placement.
- Implant site and length did not significantly influence insertion depth in this study population.
