Effects of Immediate and Delayed Loading on the Outcomes of All-on-4 Treatment: A Prospective Study

  • Hossein Najafi Prostodontist, Post Doc student, dental implant research center, dentistry research institute, Tehran University of medical science, Iran.
  • Hakimeh Siadat Professor, Dental Implant Research Center, Dentistry Research Institute, Tehran University of Medical Sciences and Department of Prosthodontics, Faculty of Dentistry, Tehran University of Medical Sciences, Tehran, Iran.
  • Solmaz Akbari Assistant Professor, Dental Implant Research Center, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran; Department of Periodontics, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
  • Amirreza Rokn Professor, Dental Implant Research Center, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran; Department of Periodontics, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
Keywords: Dental Implants, Immediate Dental Implant Loading, Prospective Studies

Abstract

Objectives: The purpose of this study was to compare the outcomes of immediate and delayed rehabilitation of edentulous jaws by means of two straight and two tilted implants after one year of function.Materials and Methods: Thirty consecutive patients (16 males, 14 females) were enrolled in this study. Two anterior straight and two posterior tilted implants were placed in each patient. According to the implant insertion torque and the need for bone grafting, implants were loaded immediately (at 72 hours) or delayed (after four months) using a fixed metal resin prosthesis. Results: One axial implant failed in the delayed group after one year of loading, resulting in cumulative implant survival rate of 99.3%. The mean marginal bone loss was 0.84mm. No significant difference was found between axial and tilted implants in the two groups (P>0.05)Conclusions: Based on the results, immediate or delayed fabrication of final prosthesis on two tilted and two axial implants did not result in significant differences in survival rates or marginal bone loss. 

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Published
2017-01-11
How to Cite
1.
Najafi H, Siadat H, Akbari S, Rokn A. Effects of Immediate and Delayed Loading on the Outcomes of All-on-4 Treatment: A Prospective Study. jdt. 13(6):415-22.
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Original Article(s)