Marginal leakage of retrograde filling materials using stereomicroscope: An in vitro study

TL;DR

This study compared the microleakage of different root-end filling materials in prepared cavities and found bioceramic material to be the most effective.

Contribution

The study provides new empirical evidence on the performance of bioceramic materials in reducing microleakage in retrograde cavity repairs.

Findings

Bioceramic root repair material showed the least mean microleakage (0.197±0.341).

Mineral trioxide aggregate and biodentine also showed significantly less microleakage than resin-modified glass ionomer cement.

Resin-modified glass ionomer cement had the highest microleakage (1.381±0.743).

Abstract

Root-end filling material apical microleakage in ultrasonic retro tip-prepared retro-cavities is of interest to dentists. Hence, 68
entire maxillary second premolars and mandibular premolars with a single root, removed for orthodontic reasons from individuals were
selected for this study. A 3 mm apical root-end excision was performed utilizing a diamond disc while, root-end cavities were created
utilizing an ultrasonic retro-tip. Four groups of 17 teeth were randomly assigned to receive retrograde cavity repairs with mineral
trioxide aggregate (group 1); Biodentine (group 2), total fill bioceramic root repair material (group 3) and resin-modified glass
ionomer cement (group 4). It was observed that bioceramic root repair material (0.197±0.341), biodentine (0.256±0.547) and
mineral trioxide aggregate (0.814±0.436) exhibited a significantly lesser microleakage than resin-modified glass ionomer cement
(1.381±0.743). Thus, the bioceramic root repair material exhibited the least mean microleakage among all the materials that were
assessed in this study.