BACKGROUND Translucency of dentine is the result of occlusion of the corresponding dentinal tubules by a mineral substance which has a refractive index similar to that of the rest of the dentine. CASE PRESENTATION This case report describes the microradiographic features of an upper cadaveric canine. Transverse microradiograph is one of the methods assessing apical dentine translucency for va...

Bacteria and their products play a primary etiological role in the initiation and perpetuation of pulpo-periapical pathosis. The biological objective of root canal treatment is eradication of bacterial load from the root canal system. Despite the fact that all measures are being taken to achieve this goal, failures are still being reported [1]. The ability of certain microbes to form biofilms i...

A direct current, cold, atmospheric-pressure Ar/O2 (2%) plasma microjet (PMJ) was used to disinfect root canals in single-rooted extracted human teeth. Results showed that 98.8% Enterococcus faecalis (E. faecalis) was inactivated in 8 min. However, the seemingly cleaned root canal was reinfected after a week, possibly due to the hard-to-reach infected dentinal tubules. It was found that a 30-mi...

Tooth hypersensitivity due to exposed dentinal tubules is a common finding in the adult population, with as many as 1 in 7 (857%) patients attending for dental treatment [1,2]. The subjects’ evaluation of their own overall sensitivity, i.e. subject assessment, has been used frequently to measure hypersensitivity in clinical studies [3]. This assessment is done through various types of stimuli, ...

The in vitro dentin permeability of the constituents of two types of conventional phosphoric acid etching agents which had different viscosities, and their pH changes after being permeated dentin were investigated. It was recognized that, even though the etching was for a short time (one minute) followed by rinsing, the etching agents were still detected in the dentinal tubules which had permea...

introdouction: dentinal hypersensitivity (dh) is one of the most painful chronic problems reported in dental offices. various methods have been applied for the treatment of dh. however, majority of them are either ineffective or last for a short period of time. it has been reported that lasers, particularly neodymium- doped: yttrium aluminum garnet laser (nd: yag), can be helpful in the treatme...

Objective: To evaluate the effect of different irradiation times on the occlusion of dentinal tubules when using Nd:YAG laser. Background data: Dentin hypersensitivity is a frequent problem that has limited treatment success despite many chemical and physical therapies. Methods: Four coronal dentin disks 2 mm thick were cut with a low-speed diamond saw from four freshly extracted intact first m...

Aim and Objective: Endodontic retreatment is indicated in the event of a failure initial treatment root canal an that looks to be correctable with retreatment. This in-vitro study was designed assess efficacy passive ultrasonic irrigation endodontic retreatment, by employing scanning electron microscopes, on cleanliness dentine tubules without solvent curved channels. Material method: Sixty hum...