Interpretation of Root Canal Anatomy of Maxillary and Mandibular Permanent Canines in Saudi Subpopulation: A Cone-Beam Computed Tomography (CBCT) Study.

The objective of this investigation was to evaluate the root canal anatomy of permanent canines in a Saudi subpopulation utilizing CBCT. A total of 1328 CBCT images of maxillary (634) and mandibular (694) permanent canines were collected from Saudi patients who visited the College of Dentistry at King Saud University in Riyadh. The images were analyzed for root and canal numbers, canal configuration types, and symmetry between the bilateral canine teeth in each arch. Gender, age, and tooth position were recorded. The Kappa test was used for both inter- and intraexaminer reliabilities. Data were analyzed with the chi-square test at a P value ≤ 0.05. There were no two-rooted teeth in maxillary canines, and 1.89% had two canals. Double roots and double canals in mandibular canines were found in 2.88% and 9.94% of the teeth, respectively. Type I canal configuration was more common in maxillary canines (97.94%) compared to mandibular canines (92.07%). Maxillary canines showed higher bilateral symmetries of root and canal numbers and canal configuration types (100%, 98.1%, and 97.9%, resp.) compared to mandibular canines (97.1%, 90.1%, and 92.1%, respectively). The majority of maxillary and mandibular canines had a single root with a single canal and type I canal configuration. Mandibular canines are characterized by having more than one root and canal and alterations in root canal configurations compared to maxillary canines.

Silent sinus syndrome (First Case Report, Saudi Arabia with recommendation).

INTRODUCTION: Silent sinus syndrome is a rare disorder that presents a diagnostic challenge, most of the patients with this syndrome present with ophthalmological complaints without any nasal sinus symptoms, and it has a painless course and slow development. The syndrome can be diagnosed clinically and confirmed radiologically, and CT imaging is considered the gold standard for its diagnosis. The classical radiographic findings are opacification and collapse of the sinus walls. Functional endoscopic sinus surgery (FESS) is the standard gold treatment of choice to arrest the progression of the disease. PRESENTATION OF CASE: A case report of a 37-years-old-female who was complaining of severe throbbing pain since 2009, is presented here where the diagnosis of SSS was obtained in 2018, this delay in diagnosing the situation had affected the patient lifestyle tremendously. DISCUSSION: Accordingly, knowledge of the signs and features of SSS can result in an accurate diagnosis. Suspected cases of silent sinus syndrome require prompt ear, nose, and throat referral for consideration of definitive diagnosis and surgical management. Nasal endoscopy and clinical evaluation are also essential for the diagnosis. CONCLUSION: Our recommendation is to consider SSS as a differential diagnosis for patients with spontaneous enophthalmos and hypoglobus, even in the absence of maxillary sinus opacification. Moreover, encourage all the specialists in the medical and the dental field to communicate well together in cases like this.