Rare variant of dens invaginatus with accessory root and labial talon cusp in maxillary lateral incisor-Case report.

Dens invaginatus (DI) often causes dysmorphic changes in both the crown and root. This case report presents a complicated type 3a DI in a maxillary lateral incisor with labial talon cusp and root bifurcation. Although lingual talon cusp is common in maxillary lateral incisor, labial talon cusp is rare.

Sodium percarbonate as a novel intracoronal bleaching agent: assessment of the associated risk of cervical root resorption.

Aim: To evaluate the extraradicular peroxide release from sodium percarbonate compared to sodium perborate as an intracoronal bleaching agent.

Methodology: Sixty mandibular single-rooted premolars with intact CEJ were selected. After root filling, gutta-percha was removed 4 mm apical to CEJ and 2 mm of GIC was condensed over the root filling.

Double Dens Invaginatus with Multiple Canals in a Maxillary Central Incisor: Retreatment and Managing Complications.

Dens invaginatus is a developmental anomaly that often presents a perplexing challenge to the endodontist. It involves the maxillary central incisor less commonly than the maxillary lateral incisor. Double dens invaginatus is even rarer.

Mechanical reduction of the intracanal Enterococcus faecalis population by Hyflex CM, K3XF, ProTaper Next, and two manual instrument systems: an in vitro comparative study.

Aim: In the present study, the effectiveness of three rotary and two manual nickel titanium instrument systems on mechanical reduction of the intracanal Enterococcus faecalis population was evaluated.

Methods: Mandibular premolars with straight roots were selected. Teeth were decoronated and instrumented until 20 K file and irrigated with physiological saline.