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Updated: May 8, 2026

Measuring Contralateral Silent Period Induced by Single-Pulse Transcranial Magnetic Stimulation to Investigate M1 Corticospinal Inhibition

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The silent sinus syndrome.

Mahnaz Sheikhi¹, Faranak Jalalian

¹Torabinejad Dental Research Center and Department of Oral and Maxillofacial Radiology, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran.

Dental Research Journal

|August 16, 2013

Summary

Silent Sinus Syndrome (SSS) causes painless facial asymmetry due to chronic maxillary sinus atelectasis. Treatment involves endoscopic surgery to address maxillary ostium obstruction.

Area of Science:

Otolaryngology
Radiology
Plastic Surgery

Background:

Silent Sinus Syndrome (SSS) is characterized by painless facial asymmetry and enophthalmos.
It results from chronic maxillary sinus atelectasis, a condition where the sinus collapses inward.

Observation:

Clinical diagnosis is common, but imaging reveals key features.
Characteristic imaging findings include maxillary sinus outlet obstruction, opacification, and reduced sinus volume due to inward retraction of sinus walls.

Findings:

Obstruction of the maxillary ostium is a critical factor in SSS development.
Inward retraction of maxillary sinus walls leads to atelectasis and characteristic facial changes.

Implications:

Keywords:

Enophthalmos hypoplasia maxillary sinus syndrome

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Understanding the role of maxillary ostium obstruction is key for diagnosis and treatment.

Functional endoscopic surgery is the primary treatment modality for SSS.