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Open Dent J. 2018 Oct 18;12:801-810. doi: 10.2174/1745017901814010801. eCollection 2018.

Using Resonance Frequency Analysis to Compare Delayed and Immediate Progressive Loading for Implants Placed in the Posterior Maxilla: A Pilot Study.

Author information

1
Department of Periodontology, Al-Rafidain College, Baghdad, Iraq.
2
Department of Prosthodontic and Dental Implant, Riyadh Dental Center, King Saud Medical City, Riyadh, Saudi Arabia.
3
Department of Oral Surgery, Faculty of Dental Medicine, University of Porto, Porto, Portugal.

Abstract

Objective:

Implants placed in the posterior region of the maxilla have a high incidence of implant failure due to poor bone quality, especially when immediate implant loading is needed. Immediate Progressive Loading (IPL) can enhance bone quality and may offer an alternative solution when Immediate Implant loading is needed.

Methods:

Six patients (one male and five females; 34-62 years old) were included in this study. Twelve implants were inserted in the posterior region of the maxilla. Resonance Frequency Analysis (RFA) was performed at the time of implant placement and after 1, 2, 3 and 6 months. ISQ (Implant Stability Quotient) values were compared between the Delayed Loading (DL) group after 2 months and the Progressive Loading (PL) group and between different time points for each group.

Results:

At implant placement, the mean ISQ values for PL and DL implants were 63 and 57, respectively. One month after implant placement, the mean ISQ value for PL implants was 73.Two months after implant placement, the mean ISQ value for PL implants was 75. Three months after implant placement, the mean ISQ values for PL and DL implants were 76 and 69, respectively. Six months after implant placement, the mean ISQ values for PL and DL implants were 79 and 76, respectively.

Conclusion:

Despite its limitations, this pilot study indicated that compared to DL, PL can enhance bone density and implant stability, resulting in greater early functionality and fewer surgery sessions.

KEYWORDS:

Bone density; Bone-Implant Contact (BIC); Implant stability; Maxillary bone; Provisional crown; Resonance Frequency Analysis (RFA)

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