Ectopic eruption of teeth occurs in a variety of locations. Commonly seen in palate and maxillary sinus, they have also been reported in nasal cavity, orbit, mandibular condyle, coronoid process, and facial skin.Here, we report a rare case of recurrent sinusitis caused by ectopic tooth in right ethmoid sinus and successful endoscopic removal of it. The symptoms of the patient disappeared after ...

instrument breakage during treatment can lead to serious complications and carries the risk of treatment failure. when a file breaks in the canal, bypassing or removal can be difficult and the long-term prognosis of the tooth may be compromised. sometimes surgery may be indicated for removal of the broken segment. often some part of the root cannot be cleaned because of blockage by the broken f...

PURPOSE The aim of this study was to estimate the incidence of sinus membrane perforation in maxillary sinus augmentation surgery using a lateral approach and the impact of sinus integrity on incidence of sinusitis and bone graft survival in the maxillary sinus. PATIENTS AND METHODS A total of 359 sinus augmentation procedures (208 patients) were evaluated retrospectively for sinus integrity ...

The aim of this study was to explore the mechanism of racemic higenamine in the treatment of sick sinus syndrome (SSS). A total of 40 New Zealand rabbits were randomly divided into normal sinus node and damaged sinus node (SND) groups, and each group was randomly divided into treatment and control groups (n=10). The SND model was established by formaldehyde wet dressing of the sinus node area. ...

The effects of electrical stimulation of the carotid sinus on sinus rate and atrioventricular (A-V) conduction were studied before and after alternate interruption of the vagi and sympathetic nerves to the heart in dogs. In group I, carotid sinus stimulation caused a similar absolute decrease in sinus rate before and after vagotomy, although after vagotomy the response was more latent. Subseque...

OBJECTIVE To determine histology, staging, and survival for pediatric sinus cancer. METHODS Cases of pediatric sinus cancer (maxillary, ethmoid, and frontal/sphenoid) were extracted from the Surveillance, Epidemiology, and End Results database (1988-2005). Demographic data were tabulated and non-lymphoid malignancies were staged according to the TNM system. Kaplan-Meier survival analyses were...

BACKGROUND Sinusitis is a common disease in the horse. In human medicine it is described, that obstruction of the sinonasal communication plays a major role in the development of sinusitis. To get spatial sense of the equine specific communication ways between the nasal cavity and the paranasal sinuses, heads of 19 horses, aged 2 to 26 years, were analyzed using three-dimensional (3D) reformatt...

OBJECTIVES/HYPOTHESIS The frontal sinus is one of the most anatomically complex and inaccessible of the paranasal sinuses. As a result, surgeons have continually tried to improve surgical management of the frontal sinus. The senior author (c.w.g.) shares 50 years of experience managing the frontal sinus. DATA SOURCES PubMed literature search. REVIEW METHODS Review of the literature regardin...