Conservative Management of the Horizontal Root Fracture in the Middle Third using Fiber Post as an Intraradicular Splint

BACKGROUND: Root fractures are uncommon injuries in permanent teeth and account for only 0.5–7% of dental trauma. It occurs more frequently in fully erupted permanent teeth, in which the completely formed root with closed apices is solidly supported in the bone and periodontium. This may lead to complex consequences due to the combined damage to the pulp, dentine, cementum, bone, and periodontium. They are transverse to oblique in direction and result from a horizontal impact. Their incidence is more in the middle third of the root than at the cervical and apical thirds. CASE REPORT: This paper describes a case of complicated horizontal root fracture at the middle third of the maxillary right central incisor. After receiving an endodontic treatment, the fractured root fragments of the maxillary right central incisors were united with the help of a glass fibre post. Eventually, the incisor was restored with a zirconia crown. CONCLUSION: Follow-up after a year revealed a well-stabilized assembly of the root fragments and the post. &nbsp

Confocal Laser Scanning Microscopic Evaluation of Sealer Penetration in Root Canals of Teeth with the butterfly and Non-butterfly Effect: An In vitro Study

AIM: The study aimed to investigate the penetration depth of calcium hydroxide-based root canal sealer into buccolingual and mesiodistal aspects of roots with and without the butterfly effect at coronal and middle root sections. METHODS AND MATERIALS: Twenty single-rooted maxillary premolars were decoronated at the cementoenamel junction and viewed under a light microscope and grouped as Group 1 – butterfly (B) and Group 2 – non-butterfly according to the presence or absence of the effect. Canals were prepared till working length followed with copious irrigation. Canals were finally rinsed with 5 ml of 17% ethylenediaminetetraacetic acid solution and activated using EndoActivator followed by obturation using gutta-percha (warm vertical compaction technique) with Sealapex sealer. To provide fluorescence for confocal laser scanning microscopy (CLSM), the Sealapex was mixed with rhodamine B dye. Root sectioning yielded coronal and middle sections. CLSM was used to assess the penetration of the sealer. STATISTICAL ANALYSIS: Shapiro–Wilk test, unpaired “t-test.” RESULTS: Teeth with the butterfly effect had greater mean penetration buccolingually (905.2 μm) than mesiodistally (182.1 μm; p < 0.001). Coronal sections had greater penetration (517.4 μm) compared with the middle (354.6 μm). CONCLUSION: Sealapex sealer exhibited maximum tubular penetration in teeth with butterfly effect in buccolingual direction at the coronal third level