Selecting drill size for post space preparation based on final endodontic radiographs: An in vitro study.

Background: For placement of intraradicular posts the intracanal filling material has to be removed. If drills are employed for this purpose, extra widening of the canal, incomplete cracks or root perforation are probable when inappropriate size of drill is used.

Objective: This in vitro study assessed the efficacy of radiographs taken after completion of root canal therapy in selecting the appropriate-sized Peeso reamer for post space preparation.

The salivary exosomal microRNA as a potential biomarker in patients with periodontitis and oral cancers.

Periodontitis and oral cancers are the most common oral diseases in the human population. The early diagnosis of oral diseases allows the efficient therapy of the patient. During oral diseases, resident cells in the affected tissue secrete exosomal microRNAs (miRNAs) into saliva.