Introduction: Retention of fiber reinforced composite posts depends on the bond strength between post and cement, and cement and root dentin. The aim of this study is to evaluate the bond strength of one type of fiber post to radicular dentin with different adhesive cements. Materials and Methods: Crowns of 44 caries-free, human premolar were removed 2 mm below the CEJ and the roots were endod...

OBJECTIVE The purpose of this study was to evaluate the influence of dentin deproteinization on the nanoleakage phenomenon. MATERIAL AND METHODS Class V cavities were prepared in 12 human molars with cervical margins located in dentin. The cavities were assigned to 2 groups (n=6) according to dentin treatment: Group I - dentin treated in accordance with the manufacturer's instructions and Gro...

In this study, we aimed to compare the buccal and palatal cusp fracture resistance of endodontically treated primary maxillary premolars with mesial-occlusal-distal cavity which was restored with composite resin by using different types of bonding adhesives. A hundred extracted double rooted human maxillary premolars were randomly separated into five groups in which 20 teeth were included in ea...

Aim To compare the shear bond strength and microleakage of four adhesive systems to the enamel and dentine of primary bovine teeth. Methods 120 bovine primary mandibular incisors were collected and stored in an aqueous 1% chloramine solution at room temperature for no longer than 3 months after extraction (80 for shear bond testing and 40 for microleakage evaluation). The adhesives tested were ...

OBJECTIVES To evaluate the sealing capability of Cavit™ G with or without Clearfil™ S3 Bond and Prime & Bond NT placed in the pulp chamber. STUDY DESIGN Forty single rooted premolars, extracted for orthodontic and periodontal reasons, with intact coronal surface and mature apices, were standardized to a length of 15 mm. The teeth were instrumented, filled with a gutta-percha master cone and d...

AIM This study evaluated the influence of acid-etching time on collagen exposure in adhesive interfaces established on primary and permanent dentin. MATERIALS AND METHODS Flat dentin surfaces were produced on sound primary molars and premolars (n = 8). The surfaces were divided into mesial and distal halves, and each half was etched with phosphoric acid for 5 or 15 seconds. The teeth were ran...

OBJECTIVE Microleakage is a major factor affecting longevity of composite restorations. This study evaluated the effect of polymerization mode of bonding agent on microleakage of composite restorations. MATERIALS AND METHODS Forty-eight Class V cavities were prepared on buccal and lingual surfaces of 24 extracted human premolars. Occlusal and gingival margins were placed in the enamel and den...

Purpose: To evaluate the effect of NaOCl conditioning on shear bond strength and marginal sealing of resin bonded dentin with three total-etching adhesive systems. Materials and Methods: Flat dentin surfaces were prepared and received the following treatments: Group I, 35% phosphoric acid for 15 s; Group II, 35% phosphoric acid for 15 s followed by 10% NaOCl for 60 s; Group III received no addi...

OBJECTIVES To evaluate the microtensile bond strength of total-etch or self-etch adhesives to caries-affected versus normal dentine, and to correlate these bond strengths with DIAGNOdent laser fluorescence and Knoop microhardness (KH) measurements of the substrates. METHODS Extracted carious human molars were ground to expose flat surfaces where the caries lesion was surrounded by normal dent...