Repair of amalgam restorations with conventional and bonded amalgam: an in vitro study Reparo de restaurações de amálgama com amálgama adesivo e convencional: estudo in vitro
نویسندگان
چکیده
Methods: Thirty extracted human pre-molars were restored by amalgam. A simulated defect was prepared and assigned to two treatment groups (n=15): G1 repaired by amalgam (Permite C-SDI); G2 repaired by bonded amalgam (Caulk 34% Tooth Conditioner Gel – Dentsply + Prime & Bond 2.1 – Dentsply + Permite CSDI). The teeth were immersed in a 50% silver nitrate solution, thermocycled and then, sectioned longitudinally through the restoration center and examined by 3 examiners using a stereomicroscope. Microleakage was evaluated in a 0-4 scale for dye penetration. Microleakage data were analyzed by Kruskal Wallis and Dunn test.
منابع مشابه
Oral lichenoid lesions associated with amalgam restorations: report of two cases Lesões liquenóides bucais associadas a restaurações de amálgama: relatos de dois casos
Purpose: Dental amalgam has been used as a dental restoration for more than 165 years. However, some patients with these restorations may present oral lichenoid lesions (OLL). OLL are chronic oral mucosal contact reactions to dental amalgam. Their diagnosis usually is based on the direct contact of the affected mucosa with the amalgam restorations, clinical appearance, and lack of migrations. A...
متن کاملRevisiting amalgam: a comparative study between bonded amalgam restoration and amalgam retained with undercuts.
AIM To compare the retention of amalgam restorations in bonded amalgam restoration and restorations with undercuts. BACKGROUND With improvement in adhesive technology problem associated with conventional preparation for amalgam restorations mainly compromised resistance form of tooth structure have been largely overcome. MATERIALS AND METHODS Forty caries free extracted molars were used. A ...
متن کاملبررسی مقایسهای خارج دهانی استفاده از سه نوع گلاس آینومر به عنوان لاینر چسبنده در افزایش مقاومت شکست دندانهای ترمیم شده با آمالگام
Statement of Problem: Because dental amalgam does not adhere to tooth structure, using adhesive cements in amalgam-bonded restorations have been increased. Purpose: The goal of this in-vitro study was to compare the effects of three types of glass ionomer as adhesive liners as well as varnish liner in increasing fracture resistance of teeth restored with amalgam. Materials and Methods: Seventy ...
متن کاملSynergistic Effect of Radiofrequency Electromagnetic Fields of Dental Light Cure Devices and Mobile Phones Accelerating Microleakage of Amalgam Restorations: An in vitro Study
Background: Previous studies have shown that exposure to electromagnetic fields produced by magnetic resonance imaging or mobile phones can lead to increased microleakage of dental amalgam.Objective: The aim of the present study was to investigate the effect of electromagnetic field of a commercial dental light cure device and a common GSM mobile phone on microleakage of amalgam restorations.Ma...
متن کاملEvaluation of Shear Bond Strength between Amalgam and Composite: An in vitro Study
Background & Aims: Repair of defective restoration is more conservative than replacing it. Veneering the amalgam restorations with opaque resin materials can satisfy the esthetic demands. Evaluation of interfacial bond quality between amalgam and composite surface is one of the important factors in assessing the quality of repaired amalgam which can be achieved...
متن کامل