Related Experiment Video
Updated: May 6, 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
2.1K
Direct v/s Indirect sinus lift in maxillary dental implants
1Director, Balaji Dental and Craniofacial Hospital, Teynampet, Chennai, Tamil Nadu, India.
Annals of Maxillofacial Surgery
|November 9, 2013
Summary
Minimally invasive sinus augmentation effectively increases bone height for dental implants. Both direct (DSAT) and indirect (ISAT) techniques show significant bone gain, with alveolar width influencing implant placement success.
Area of Science:
- Dental Implantology
- Oral Surgery
- Regenerative Medicine
Background:
- Maxillary sinus bone height deficiency complicates dental implant placement.
- Minimally invasive sinus augmentation techniques offer a viable solution.
- This study evaluates long-term outcomes of direct (DSAT) and indirect (ISAT) sinus augmentation.
Purpose of the Study:
- To present long-term results of minimally invasive sinus augmentation (SAT).
- To compare the efficacy of direct (DSAT) and indirect (ISAT) sinus augmentation techniques.
- To identify factors influencing the success of sinus augmentation for implant placement.
Main Methods:
- Retrospective analysis of patients undergoing DSAT or ISAT for sinus augmentation.
- Inclusion criteria focused on patients with at least one year of follow-up.
- Data collected included patient demographics, edentulism duration, alveolar bone dimensions, and implant details.
Main Results:
- 197 implants were placed with a mean patient age of 40.2 years.
- A significant mean bone height increase of 134.6% was observed after one year.
- Both ISAT and DSAT demonstrated statistically significant bone augmentation (P=0.000).
Conclusions:
- Patient age, gender, and duration of edentulism did not impact outcomes.
- Alveolar bone width is a critical factor, influencing implant diameter selection.
- Clinical assessment of alveolar width is crucial for optimizing sinus augmentation outcomes.

