نتایج جستجو برای: dental microleakage

تعداد نتایج: 162735  

2015
Mohammad Hossein Toodehzaeim Navid Rezaie

OBJECTIVES This study aimed to evaluate the effects of saliva contamination on the metallic bracket microleakage bonded with two moisture-tolerant bonding systems. MATERIALS AND METHODS Ninety freshly extracted premolar teeth were randomly divided into six groups of 15 with the following treatments: G1 (control): After acid etching, Assure primer and Assure adhesive were applied to non-contam...

Journal: :The Angle orthodontist 2008
Tancan Uysal Mustafa Ulker Asli Baysal Serdar Usumez

OBJECTIVE To assess microleakage of enamel-composite and wire-composite interfaces when retainer wires were bonded with two orthodontic and a flowable composites. MATERIALS AND METHODS Forty-five freshly extracted human mandibular canine teeth were used in this study. Teeth were separated into three groups of 15 teeth each. Round stainless-steel wire of 0.36-in. diameter in three groups was b...

Journal: :Pediatric dentistry 2008
T K Swanson R J Feigal D Tantbirojn J S Hodges

PURPOSE This study compared the effectiveness of self-etch and total-etch adhesive systems in bonding to the beveled and nonbeveled margins of primary and permanent teeth. METHODS This in vitro, factorial-designed study allowed evaluation of 3 factors: (1) tooth type; (2) presence of a bevel; and (3) adhesive type. Two preparations, each including a beveled and nonbeveled margin, were complet...

2012
Rahil Ahmadi Nahid Ramazani Mohammad Daryaeian Saeide Nabavi

Article history: Received: 2 Mar 2012 Accepted:13 Apr 2012 Available online: 15 Oct 2012 ZJRMS 2013; 15(1): 47-51 Background: Composite resins undergo microleakage due to polymerization shrinkage particularly when located in cementum or dentin. The purpose of this study was to compare the microleakage of flowable and nanofilled composites in Class V cavities extending on to the root in primary ...

Journal: :The International journal of oral & maxillofacial implants 1999
M Gross I Abramovich E I Weiss

Microleakage can occur at the abutment-implant (A-I) interface in osseointegrated implants and may cause malodor and inflammation of peri-implant tissues. The degree of microleakage at the A-I interface of 5 implant systems was comparatively assessed at varying closing torques. Using colored tracing probes driven by a 2-atm pressure system, the interface microleakage of Brånemark, Sulzer Calcit...

Journal: :The journal of contemporary dental practice 2012
Amir Ahmad Ajami Mahmoud Bahari Siavash Savadi Oskoee Soodabeh Kimyai Mehdi Abed Kahnamoui Sahand Rikhtegaran Rahim Ghaffarian

AIM The aim was to evaluate the effects of Oral-B (OB), Listerine (LN) and Rembrandt Plus (RM) mouthrinses on microleakage of composite resin restorations bonded with two adhesive systems after bleaching with 10% carbamide peroxide. MATERIALS AND METHODS A total of 60 Cl V cavities were prepared on human premolars. The occlusal and gingival margins were placed 1 mm occlusal to and apical to C...

Journal: :Pediatric dentistry 1997
K Shiflett S N White

Microleakage is related to recurrent decay, inflammation of vital pulps, and reinfection of previously treated root canals. The purpose of this investigation was to compare the abilities of new adhesive cements and conventional nonadhesive controls to prevent microleakage under stainless steel crowns on primary anterior teeth. Standardized preparations were made, and stainless steel crowns were...

Journal: :European journal of orthodontics 2011
Raúl Navarro Ascensión Vicente Antonio J Ortiz Luis A Bravo

The purpose of this study was to evaluate the effects of Coca-Cola and Schweppes Limón on bond strength, adhesive remnant, and microleakage beneath brackets. One hundred and twenty upper central incisor brackets were bonded to bovine incisors and divided into three groups: (1) Control, (2) Coca-Cola, and (3) Schweppes Limón. The teeth were submerged in the drinks three times a day for 15 minute...

Journal: :International Journal of Health Sciences (IJHS) 2022

Since its introduction about fifty years ago, adhesive technology has advanced rapidly. In this current era,nanoparticles gained attention in restorative dentistry because of advantages like improving bond strength and stability restoration.As opposed to the chemical process, green synthesis titanium oxide nanoparticles more one which is improved antimicrobial activity. Antibacterial dental adh...

2015
Kazem Khosravi Seyed-Mostafa Mousavinasab Mahsa Sahraneshin Samani

BACKGROUND Despite the growing tendency toward tooth-colored restorations in dentistry, polymerization shrinkage and subsequent marginal microleakage remains a problem. The aim of this in vitro study was to compare microleakage between silorane-based and methacrylate-based composite resins at different time intervals and with different restorative techniques. MATERIALS AND METHODS In this in ...

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