Axial versus Tilted Distal Implants in All-on-4 Mandibular Screw-Retained Prosthesis. A Randomized Controlled Trial
Badr, S., Elawady, D., Ibrahim, W., Eldin, A. (2023). Axial versus Tilted Distal Implants in All-on-4 Mandibular Screw-Retained Prosthesis. A Randomized Controlled Trial. EKB Journal Management System, 2(2), 24-33. doi: 10.21608/msadj.2023.206523.1018
Sarah Abouel Fetouh Badr; Dina M Elawady; Wafaa Ibrahim Ibrahim; Ahmed Mohamed Hossam Eldin. "Axial versus Tilted Distal Implants in All-on-4 Mandibular Screw-Retained Prosthesis. A Randomized Controlled Trial". EKB Journal Management System, 2, 2, 2023, 24-33. doi: 10.21608/msadj.2023.206523.1018
Badr, S., Elawady, D., Ibrahim, W., Eldin, A. (2023). 'Axial versus Tilted Distal Implants in All-on-4 Mandibular Screw-Retained Prosthesis. A Randomized Controlled Trial', EKB Journal Management System, 2(2), pp. 24-33. doi: 10.21608/msadj.2023.206523.1018
Badr, S., Elawady, D., Ibrahim, W., Eldin, A. Axial versus Tilted Distal Implants in All-on-4 Mandibular Screw-Retained Prosthesis. A Randomized Controlled Trial. EKB Journal Management System, 2023; 2(2): 24-33. doi: 10.21608/msadj.2023.206523.1018

Axial versus Tilted Distal Implants in All-on-4 Mandibular Screw-Retained Prosthesis. A Randomized Controlled Trial

MSA Dental Journal
Volume 2, Issue 2, April 2023, Page 24-33  XML PDF (726.77 K)
Document Type: Original Article
DOI: 10.21608/msadj.2023.206523.1018
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Authors
Sarah Abouel Fetouh Badr email 1; Dina M Elawady2; Wafaa Ibrahim Ibrahim3; Ahmed Mohamed Hossam Eldin4
1Prosthodontics, Faculty of Dentistry, Modern Science and Arts University (MSA), Cairo, Egypt
2Departments of prosthodontics . Faculty of Dentistry. MSA University
3Faculty of Oral and Dental Medicine, Delta University for Science & Technology, Mansoura, Egypt
4Oral Radiology Faculty of Dentistry, Modern Science and Arts University (MSA), Cairo, Egypt
Abstract
Background: The all-on-4 concept presents an ideal solution that enables using four dental implants placed in the inter-foraminal region to retain a prosthesis. This study aimed to compare the implant survival and bone loss of axial versus tilted distal implants in screw-retained prosthesis.
Methods: 28 Patients were randomly assigned into two groups; each group received four inter-foraminal implants; Group 1: received two axially placed anterior implants and two axially placed posterior implants. Group 2: received two axially placed anterior implants and two distally inclined posterior implants. All patients received screw-retained implant prosthesis. After a follow-up period of 2 years, implant survival was evaluated. Bone loss was measured at 6, 12, and 24 months.
Results: No implant losses were observed in both groups, representing a survival rate of 100%. Regarding marginal bone loss, there was no significant difference between anterior implants at 6, 12, and 24 months, with p-value of 0.931, 0.684, and 0.846, respectively. In addition, there was no significant difference between posterior implants at 6, 12, and 24 months with a p-value of 0.834, 0.765, and 0.904, respectively. Comparing anterior and posterior implants in group 1 at 6, 12, and 24 months showed no significant difference with p-value of 0.500, 0.464, and 0.500, respectively, and there was no significant difference in group 2 at 6, 12, and 24 months, with p-value of 0.456, 0.433, and 0.392, respectively.
Conclusion: The angulation of distal implants in all-on-4 mandibular screw-retained prosthesis does not influence implant survival or peri-implant marginal bone loss (MBL).
Keywords
All-on-4; Screw Retained Dentures; Hybrid Prosthesis; Axial Implants
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