Monomer Release from Resin Based Dental Materials Cured With LED and Halogen Lights.

Objectives: To measure the release of TEGDMA and BisGMA from two commercially available composite resins; Filtek Z 250 (3M ESPE, Germany), Leaddent (Leaddent, Germany) and two fissure sealants; Helioseal F (3M ESPE, Germany) Enamel Loc (Premiere Rev, USA) over 1, 3 and 7 days after polymerization with standard quartz-tungsten halogen Coltolux II (QHL) (Coltene Switzerland) and a standard blue light emitting diode Elipar Freelight 2 (3M ESPE, Germany).

Methods: 9 samples of each material were placed in disc shaped specimens in 1 mm of thickness and 10 mm in diameter (n=36). Each material was polymerized using LED for 20 s (n=12), 40 s (n=12) and halogen for 40 s (n=12), respectively.

Effects of light curing method and exposure time on mechanical properties of resin based dental materials.

Objectives: The aim of this study was to investigate microhardness and compressive strength of composite resin (Tetric-Ceram, Ivoclar Vivadent), compomer (Compoglass, Ivoclar, Vivadent), and resin modified glass ionomer cement (Fuji II LC, GC Corp) polymerized using halogen light (Optilux 501, Demetron, Kerr) and LED (Bluephase C5, Ivoclar Vivadent) for different curing times.

Methods: Samples were placed in disc shaped plastic molds with uniform size of 5 mm diameter and 2 mm in thickness for surface microhardness test and placed in a diameter of 4 mm and a length of 2 mm teflon cylinders for compressive strength test. For each subgroup, 20 samples for microhardness (n=180) and 5 samples for compressive strength were prepared (n=45).

Colonization and vertical transmission of Streptococcus mutans in Turkish children.

The aim of the study was to establish the colonization of Streptococcus mutans and to determine the possibility of intra-familial transmission in a group of Turkish children and their parents. A total of 56 children participated in the study together with their parents (20 fathers and 49 mothers). Saliva samples were collected from the individuals and cultivated on S.

The oral manifestations of Maroteaux-Lamy syndrome (mucopolysaccharidosis VI): a case report.

Maroteaux-Lamy syndrome is one of the genetic disorders involving disturbances in mucopolysaccharide metabolism resulting in increased storage of acid mucopolysaccharide in various tissues. The basic defect in Maroteaux-Lamy syndrome is a deficiency of arylsulfatase B, which leads to accumulation of dermatan sulfate in tissues and their urinary excretion. The deposition of mucopolysaccharides leads to a progressive disorder involving multiple organs that often results in death in the second decade of life.

Dental management of isolated growth hormone deficiency: a case report.

In case of growth hormone deficiency, periodontal problems may accompany due to the abnormal formation of teeth making plaque accumulation easier. The purpose of this report is to describe dental management of a 14-year old female patient with isolated growth hormone deficiency. She was referred to the Department of Periodontology for treatment of severe gingival inflammation.

Might there be a link between mannose-binding lectin polymorphism and dental caries?

The aim of this study is to analyze two polymorphisms in exon 1 of Mannose-binding lectin (MBL) gene in children with carious teeth and children caries-free in order to determine the frequencies of these polymorphisms and to investigate possible association between MBL polymorphisms and dental caries. Fourty-two children with carious teeth and 40 children caries-free participated in the study. Two-hundred microliters of peripheral blood samples were taken in EDTA tubes and genomic DNA was isolated.

Transmission of Streptococcus mutans in a group of Turkish families.

Background/aims: To investigate the transmission of Streptococcus mutans in a group of Turkish families using AP-polymerase chain reaction (PCR) detection.

Methods: Eight mothers who had high S. mutans levels in unstimulated saliva and 8 children aged between 2 and 3 years participated in the study.

Mesiodens in primary, mixed and permanent dentitions: a clinical and radiographic study.

The term mesiodens refers to a supernumerary tooth located between the maxillary central incisors. The aim of the study was to investigate the characteristics of mesiodens among children in Turkey. The study population involved 24 children who attended the Department of Pediatric Dentistry, Ege University for dental problems.

Mandibular bilateral fusion in primary dentition: case report.

Fusion has been described as a developmental anomaly characterized by the union of 2 adjacent teeth. Bilateral dental fusion in the primary dentition is a rare dental anomaly. The purpose of this report was to present a 9-year-old boy who had bilateral fusion of his mandibular primary lateral incisor and canine teeth.

Effects of 2,4-dichlorophenoxy acetic acid dimethyl amine salt on dental hard tissue formation in rats.

2,4-Dichlorophenoxy acetic acid dimethyl amine salt (2,4-D DMA), as one of the phenoxy acids, is used as a herbicide mainly against broad-leaf weeds in cereal crops, sugar cane, and on turf, pasture, and non-crop land. Some formulations of 2,4-D may be contaminated with dioxins. Recently, it has been shown that chlorinated organic compounds, dioxins, and furans are present in mother's milk and may cause developmental defects in children's teeth.

Salivary Streptococcus mutans, Lactobacilli levels and buffer capacity in children with esophageal burns.

Children with esophageal burns due to toxic ingestion are medically compromised in many ways. They have problems like strictures in esophagus, dysphagia, gastroesophageal reflux and necessity to be fed with a special soft diet. Taking these distinctive features into consideration, we aimed to study these children with special focus on the dental caries risk.

A comparative study of fluoride uptake from dentin bonding agents and glass-ionomer cements in permanent and primary tooth enamel.

Objective: Many fluoride-releasing dental materials are being sold on the basis of their cariostatic properties. However, the amount of fluoride release of these materials is still uncertain. The aim of this study was to determine the amount of fluoride uptake in primary and permanent tooth enamel from 1 conventional glass-ionomer cement (Fuji II), 1 resin-modified glass-ionomer cement (Fuji II LC), and 2 fluoride-releasing dentin bonding agents (Liner Bond 2 and Optibond) in vitro.

Complete replacement resorption after replantation of maxillary incisors: report of case.

This article describes the treatment of a 17-year-old patient with complete root resorption of the maxillary permanent central and lateral incisors following avulsion and replantation seven years ago. The most important factor influencing the prognosis of replanted teeth is the status of the periodontal ligament (PDL). As a result of replantation, the PDL cells necrosed and tooth replacement resorption occurred.

Bruxism in Rett syndrome: a case report.

Rett syndrome is a unique and puzzling disorder noted in females and is possibly caused by fundamental failures in critical brain connectivity during early infancy. The most frequent habits in Rett syndrome are hand sucking or biting, bruxism and mouth breathing. Children with musculoskeletal disorders and children who suffer from mental retardation commonly grind their teeth.

Taurodontism in children associated with trisomy 21 syndrome.

Taurodontism, the dental trait characterized by teeth with elongated pulp chambers and apical displacement of the bifurcation or trifurcation of roots, is reviewed in children with Trisomy 21 (Down) syndrome. Twenty-two patients were studied to determine the frequency of taurodontism. Eruption delay and congenitally lost teeth were also evaluated.

Salivary cortisol levels in children during dental treatment.

Cortisol which is also called as stress hormone, is used as an indicator in the stress evaluation studies. 60 children who never visited a dentist before, participated in the present study. Saliva samples were collected from 30 children without any dental treatment (control group).

Effect of Cervitec varnish on the salivary Streptococcus mutans levels in the patients with fixed orthodontic appliances.

The aim of the present study was to assess the efficiency of a 1% chlorhexidine-containing varnish (Cervitec, Vivadent, Liechtenstein) on the levels of Streptococcus mutans in saliva of patients with fixed orthodontic appliances using the Dentocult-SM (Vivadent, Liechtenstein) technique for the microbiological investigation. Eighty subjects participated in the study and, divided randomly into two equal groups in which one group was treated with the placebo varnish (Vivadent, Liechtenstein) for negative controls. Streptococcus mutans in saliva of the subject was sampled and enumerated by using the Dentocult-SM dip-slide technique for periods of one, two four and twelve weeks after a single varnish application.

Fluoride uptake by enamel in vitro following application of various topical fluoride preparations.

Two conventional topical fluoride preparations; APF and neutral 2% NaF gel and two fluoride varnishes; Duraphat and Fluor Protector, were applied to 60 permanent and 20 primary teeth. The teeth were halved to provide test and control groups, and the fluoride uptake was measured using a micro acid etch technique, after 30 seconds and 60 seconds etching periods. All topical fluoride preparations in our study caused some fluoride uptake in permanent and primary tooth enamel compared to the control groups.