Related Experiment Video
Updated: Jul 12, 2026

05:54
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
Timing, positioning, and sequential staging in esthetic implant therapy: a four-dimensional perspective
Akiyoshi Funato1, Maurice A Salama, Tomohiro Ishikawa
1Department of Periodontics, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Summary
This study clarifies indications and limitations for immediate implant placement after tooth extraction. It introduces a four-dimensional treatment planning concept, integrating time with traditional 3D positioning for better outcomes.
Area of Science:
- Dental Implantology
- Oral Surgery
Background:
- Immediate implant placement into extraction sockets is frequently discussed.
- Limited reports detail specific indications and limitations for this technique.
Purpose of the Study:
- To re-examine specific indications for immediate implant placement.
- To clarify the critical role of timing (the "fourth dimension") in relation to extraction and implant placement.
- To introduce an expanded concept of four-dimensional implant treatment planning.
Main Methods:
- Review and re-evaluation of existing literature on immediate implant placement.
- Conceptual framework development for four-dimensional (4D) implant treatment planning.
Main Results:
- Identified specific indications and limitations for immediate implant placement.
- Emphasized the importance of the temporal axis in treatment planning.
Conclusions:
- A four-dimensional approach, incorporating time, is essential for optimal implant treatment planning.
- Considering the "fourth dimension" alongside spatial factors enhances predictability in immediate implant placement procedures.
