Related Experiment Video
Updated: Feb 2, 2026

Real-Time Dynamic Navigation System for the Precise Quad-Zygomatic Implant Placement in a Patient with a Severely Atrophic Maxilla
Published on: October 18, 2021
Using Resonance Frequency Analysis to Compare Delayed and Immediate Progressive Loading for Implants Placed in the
Mohammed Jasim Al Juboori1, Mohammed Ahmed Al Attas2, Raquel Zita Gomes3
1Department of Periodontology, Al-Rafidain College, Baghdad, Iraq.
Immediate Progressive Loading (IPL) improves bone density and implant stability in the posterior maxilla compared to Delayed Loading (DL). This enhanced bone quality leads to better early function and potentially fewer surgical procedures.
Area of Science:
- Dental Implantology
- Oral Surgery
- Biomaterials Science
Background:
- Posterior maxillary implants face high failure rates due to poor bone quality, especially with immediate loading.
- Immediate Progressive Loading (IPL) is explored as a method to improve bone quality and function.
Purpose of the Study:
- To evaluate the efficacy of Immediate Progressive Loading (IPL) in enhancing bone quality and implant stability in the posterior maxilla.
- To compare IPL with Delayed Loading (DL) for maxillary implants.
Main Methods:
- A pilot study involving six patients and twelve implants in the posterior maxilla.
- Resonance Frequency Analysis (RFA) measured Implant Stability Quotient (ISQ) at multiple time points.
- Comparison of ISQ values between IPL and DL groups.
Main Results:
- IPL implants showed higher initial ISQ values (63) than DL implants (57).
- IPL implants demonstrated progressively increasing ISQ values, reaching 79 at 6 months.
- At 6 months, IPL implants (79) had higher ISQ values than DL implants (76).
Conclusions:
- IPL may enhance bone density and implant stability in the posterior maxilla compared to DL.
- IPL shows potential for improved early functionality and reduced surgical interventions.
- Further research is warranted due to the pilot nature of this study.
Related Concept Videos
Load-frequency control
Comparing the Survival Analysis of Two or More Groups
Pilot and Numeric Relaying
Resonance
Frequency-dependent Selection
Imaging Studies IV: Magnetic Resonance Imaging

