Comparison of the accuracy of dynamic navigation and the free hand approaches in the placement of pterygoid implants in the completely edentulous maxilla: An in vitro study.

Background/purpose: Pterygoid implant is a promising solution for patients with a partially or fully edentulous atrophic maxilla. However, whether dynamic navigation system will improve the accuracy of pterygoid implant surgery is still unknown. This study aimed to compare the accuracy of dynamic navigation and free-hand approaches in pterygoid implant placement in completely edentulous maxilla models.

Longitudinal reactions of maxillary sinus in patients treated with multiple zygomatic implants: A modified radiographic evaluation with clinical follow-up.

Objectives: To investigate the effects of zygomatic implant placement on the maxillary sinus using radiographic and clinical indicators.

Methods: Patients with an atrophic maxilla who underwent zygomatic implant placement were included. The thickness and morphology of the Schneiderian membrane (SM), infundibular obstruction, and posterior bone wall of the maxillary sinus were analyzed.

Real-Time Dynamic Navigation System for the Precise Quad-Zygomatic Implant Placement in a Patient with a Severely Atrophic Maxilla.

Zygomatic implants (ZIs) are an ideal way to address cases of a severely atrophic edentulous maxilla and maxilla defects because they replace extensive bone augmentation and shorten the treatment cycle. However, there are risks associated with the placement of ZIs, such as penetration of the orbital cavity or infra-temporal fossa. Furthermore, the placement of multiple ZIs makes this surgery risky and more difficult to perform.

[Perioperative nursing of zygomatic implant surgery for patients with severe periodontitis].

Purpose: To analyze the perioperative nursing characteristics about severe periodontitis patients with immediate zygomatic implantation, and to summarize the clinical nursing experience.

Methods: Preoperatively, all patients received psychological counseling, oral hygiene instruction, and periodontal care with necessary means after physical examination. Cooperative procedures were preformed between nurses and surgeon during operation.