(10) Implant Success Rates in the All-on-X Treatment Concept as Compared to the All-on-4 Concept: A Retrospective Case Series

Thursday, September 15, 2022

1:30 PM – 3:00 PM CDT

Presenting Author(s)

AN

Anju Nellissery, DMD, MD

Resident
Kings County Hospital Center
Brooklyn, New York, United States

Co-Author(s)

MM

Mitchell Mamorsky, DMD

Resident
Kings County Hospital Center
Brooklyn, New York, United States
MG

Mark Goodenough, DDS, MD

Resident
Kings County Hospital Center
Brooklyn, New York, United States

Disclosure(s):

Mitchell Mamorsky, DMD: I do not have any relevant financial / non-financial relationships with any proprietary interests.

Mark Goodenough, DDS, MD: I do not have any relevant financial / non-financial relationships with any proprietary interests.

Anju Nellissery, DMD, MD: No financial relationships to disclose

Abstract:

Background:
The All-on-4 concept has revolutionized the way dental providers treatment plan implant surgery and implant restorations. In the past, patients had to wait several months for their implants to osseointegrate before loading those implants with teeth. Now, however, patients are able to have a full set of teeth the same day. The literature illustrates long term comparable success with use of this treatment modality compared to traditional techniques. In recent years, providers expanded on this concept by including more than 4 implants in the implant supported prosthesis, now denoted as All-on-X. With an increasing number of providers placing more than 4 implants for their All-on-X cases, an important question can be raised: does an increase in the number of implants correlate to a higher success rate compared to the traditional All-on-4 technique? This study is a retrospective analysis of patients who underwent an All-on-X implant rehabilitation and their success rate from one single oral surgery group practice.

Methods:
This retrospective case series includes 202 patients with a total of 1109 implants placed who underwent an All-on-x implant rehabilitation procedure completed by a single group practice of three oral surgeons from 2014-2021. The majority of implants used were Nobel active, however, Nobel Zygomatic implants, Zimmer, SGS, Neoss were utilized as well.

Results:
Out of 1109 implants, 44 implants failed. Out of 202 cases, 22 cases had at least one failed implant. This results in a 96.03% success rate for implants placed and 89.11% of cases without complications. To our knowledge, none of the implant failures resulted in failure of the prosthesis

Conclusions:
The results support that the All-on-X concept is a viable and reliable treatment modality of treating the edentulous maxilla or mandible. With an increase in the number of implants placed, a failed implant does not appear to cause failure of the prosthesis.

References:

Patzelt S, et al: The all-on-four treatment concept: a systematic review. Clinical Implant Dentistry and Related Research 16(6), 2014.

Yusupov S, Yen K, Sobarzo D, Lazow S, Hoffman D. Immediate Computer-Guided Implant Placement and Provisionalization Using All-on-4 Concept: Review of the Technique and a Case Series. Poster presented at: AAMOS Annual Meeting; 2016; Las Vegas, Nevada.