Retention of BioAggregate and MTA as coronal plugs after intracanal medication for regenerative endodontic procedures: an ex vivo study

OBJECTIVES: This study compared the retention of BioAggregate (BA; Innovative BioCeramix) and mineral trioxide aggregate (MTA; Angelus) as coronal plugs after applying different intracanal medications (ICMs) used in regenerative endodontics. MATERIALS AND METHODS: One-hundred human maxillary central incisors were used. The canals were enlarged to a diameter of 1.7 mm. Specimens were divided into 5 groups (n = 20) according to the ICM used: calcium hydroxide (CH), 2% chlorhexidine (CHX), triple-antibiotic paste (TAP), double-antibiotic paste (DAP), and no ICM (control; CON). After 3 weeks of application, ICMs were removed and BA or MTA were placed as the plug material (n = 10). The push-out bond strength and the mode of failure were assessed. The data were analyzed using 2-way analysis of variance, the Tukey's test, and the χ2 test; p values < 0.05 indicated statistical significance. RESULTS: The type of ICM and the type of plug material significantly affected bond strength (p < 0.01). Regardless of the type of ICM, BA showed a lower bond strength than MTA (p < 0.05). For MTA, CH showed a higher bond strength than CON, TAP and DAP; CHX showed a higher bond strength than DAP (p < 0.01). For BA, CH showed a higher bond strength than DAP (p < 0.05). The mode of failure was predominantly cohesive for BA (p < 0.05). CONCLUSIONS: MTA may show better retention than BA. The mode of bond failure with BA can be predominantly cohesive. BA retention may be less affected by ICM type than MTA retention.

Ultrasonic characteristics of orbital cysts and haemanogiomata

The caustic characteristics of the orbital cystsandorbital hemangioma were studied using combined A and B scans. Ten cases of orbital hemangioma and three cases of orbital cysts were operated upon using Kronlein procedures.The technique used in study was the immersion technique using Coleman ophthalmoscan, 10 MHz transducer

Ocular changes in leukaemias: a review and a report of 3 cases

A report of three cases of acute leukaemia, in children, demonstrating various ocular changes was given. One meyleoid presented by bilateral proptosis and fundus changes. Another lymphoblastic by bilateral proptosis and subconjuctival haemorrhage. The third was moncytic and presented by poor vision due to marked fundus changes. A review on the different ocular changes in leukaemia was included

management of amblyopia

The lines of treatment of amblyopia include occlusion, red filter, penalization and physiological diplopia. The aim of this study is to evaluate the role of occlusion in the management of amblyopia