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Article Type

Original Article

Section/Category

Restorative Dentistry

Abstract

Objectives

To evaluate tooth/restoration interface of four class V self-adhesive resin composite restorations.

Materials and methods

Activa Presto (Pulpdent Corporation, Watertown, USA), Fusio Liquid Dentin (Pentron Wallingford, CT, USA Clinical Technologies), Vertise Flow (Orange, CA, USA Kerr corporation) and FitSA (Shofu dental corporation San Marcos, CA, USA ). All the materials were manipulated according to manufacturers’ instructions.

A total of 80 sound human premolars were collected from patients with an age range from 20 to 30 years. The extractions were due to orthodontic treatment or periodontal disease. The patients visited the clinic of the Department of Oral Surgery, Faculty of Dentistry, Mansoura University seeking dental care. Box-shaped class V cavity was prepared with dimensions of 3 mm width, 2 mm height and 2 mm depth. Teeth were divided into four groups (N=20) For microleakage test teeth were isolated, then immersed in Leishman dye and examined at both occlusal enamel margin and cervical dentin margins using binocular stereomicroscope. Micromorphological pattern and Energy Dispersive Spectroscopy (EDX) tests of the tooth/restoration interface were performed. After restoration, teeth were sectioned into two halves. The first half of sectioned specimens sputter coated with a platinum and palladium alloy and then observed with scanning electron microscope (SEM). The other half of sectioned specimens was subjected to chemical analysis under high‐vacuum using EDX.

Results

There was no significant difference (P>0.05) in microleakage data between the four groups with each other at the incisal margin (P=0.446). While results exhibited a significant difference (P£0.05) in microleakage scores between Activa Presto and other groups at the cervical margin (P0.05) between Calcium percentage in enamel, dentin and cervical regions among the four groups and the same for phosphorus percent (P>0.05).

Conclusions

Activa presto showed promising results in microleakage and no significant difference in Ca and p percentage among tested groups

Keywords

bioactive, Energy Dispersive Spectroscopy, micromorphological, self-adhesive

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