Abstract:
AIM:The purpose of this study was to evaluate the activation of resin-modified glass ionomer restorative material (RMGI, Vitremer-3M-ESPE, A3) by halogen lamp (QTH) or light-emitting diode (LED) by Knoop microhardness (KHN) in two storage conditions: 24 hrs and 6 months and in two depths (0 and 2 mm). MATERIALS AND METHODS:The specimens were randomly divided into 3 experimental groups (n = 10) according to activation form and evaluated in depth after 24 h and after 6 months of storage. Activation was performed with QTH for 40s (700 mW/cm) and for 40 or 20 s with LED (1,200 mW/cm2). After 24 hrs and 6 months of storage at 37 degrees C in relative humidity in light-proof container, the Knoop microhardness test was performed. Statistics Data were analysed by three-way ANOVA and Tukey post-tests (p < 0.05). RESULTS:All evaluated factors showed significant differences (p < 0.05). After 24 hrs there were no differences within the experimental groups. KHN at 0 mm was significantly higher than 2 mm. After 6 months, there was an increase of microhardness values for all groups, being the ones activated by LED higher than the ones activated by QTH. CONCLUSION:Light-activation with LED positively influenced the KHN for RMGI evaluated after 6 months.
journal_name
Eur J Paediatr Dentjournal_title
European journal of paediatric dentistryauthors
Cassoni A,Macarini P,Leonetti ES,Shibli JA,Rodrigues JAsubject
Has Abstractpub_date
2011-09-01 00:00:00pages
150-4issue
3eissn
1591-996Xissn
2035-648Xjournal_volume
12pub_type
杂志文章,随机对照试验abstract:AIM:The aim of this study was to analyse skeletal, dental and arch morphology in a group of subjects with dental agenesis and to compare it with a control group. STUDY DESIGN:2 groups of subjects were selected: an experimental group (84 patients) with tooth agenesis and a control group (84 subjects) without tooth agen...
journal_title:European journal of paediatric dentistry
pub_type: 杂志文章
doi:
更新日期:2011-03-01 00:00:00
abstract::The management of infraoccluded primary molars can pose some difficult clinical questions: when to treat? What treatment to provide? Why treat? How long to wait and watch? The definition and aetiology of infraoccluded primary molars is discussed. Some of the sequelae of different treatment options are described. A cas...
journal_title:European journal of paediatric dentistry
pub_type: 杂志文章
doi:
更新日期:2002-06-01 00:00:00
abstract:AIM:Dental traumas are frequent in children. They can be complex events and sometimes real emergencies. Since very little attention is devoted to this topic in the international literature and there are no well-coded laser guidelines for these specific clinical events, our aim is to consider and present those situation...
journal_title:European journal of paediatric dentistry
pub_type: 杂志文章
doi:
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abstract:AIM:to evaluate the effects of rapid maxillary expansion (RME) in a group of OSAS preschool children. MATERIALS AND METHODS:Lateral cephalograms of 15 OSAS children (8 boys and 7 girls, age mean ± SD: 5.94 ± 1.64 years) were analysed at the start of treatment with RME (T0). All subjects were revaluated after a mean pe...
journal_title:European journal of paediatric dentistry
pub_type: 杂志文章
doi:
更新日期:2012-03-01 00:00:00
abstract:AIM:The objective of this study was to analyse the relationship between obesity and periodontal disease in children. The null hypothesis is that obese and normal weight children show no different degree of periodontal status. MATERIALS AND METHODS:The sample for this case control study consisted of 20 males and 24 fem...
journal_title:European journal of paediatric dentistry
pub_type: 杂志文章
doi:
更新日期:2013-09-01 00:00:00
abstract:AIM:This study had two main goals: the evaluation of caries experience in permanent teeth and the analysis of malocclusion prevalence. STUDY DESIGN:Observational cross-sectional survey. METHODS:The sample consisted of all the 5th graders of 'Gio Leonardo di Bona', the only Public School in Cutro, a small urban area i...
journal_title:European journal of paediatric dentistry
pub_type: 杂志文章
doi:
更新日期:2009-03-01 00:00:00
abstract::The correction of anterior open bite in the mixed dentition: treatment or over-treatment? Early treatment of the anterior open bite is a common, widespread treatment, which involves sometimes multiple clinical procedures: active orthodontic treatment and correction of the dysfunctional habits with a large waste of fin...
journal_title:European journal of paediatric dentistry
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journal_title:European journal of paediatric dentistry
pub_type: 杂志文章,随机对照试验
doi:
更新日期:2012-09-01 00:00:00
abstract:AIM:Examination of the risk factors for childhood traumatic dental injuries for male and female patients have been elusive. The present study aimed to examine whether males and females are differentially vulnerable to Traumatic Dental Injuries in relation to emotion regulation, attention deficiency hyperactive disorder...
journal_title:European journal of paediatric dentistry
pub_type: 杂志文章
doi:
更新日期:2015-03-01 00:00:00
abstract:AIM:The purpose of this study was to evaluate the activity of Anterior Temporal, Masseter, Sternocleidomastoid and Anterior Digastric muscles in response to changes in visual input in subjects with defective vision by means surface electromyography. METHODS:A total of 20 children, aged between 7 and 13 years, were eva...
journal_title:European journal of paediatric dentistry
pub_type: 杂志文章
doi:
更新日期:2006-03-01 00:00:00
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journal_title:European journal of paediatric dentistry
pub_type: 杂志文章
doi:
更新日期:2002-12-01 00:00:00
abstract:AIM:The aim of this study is to compare the sagittal dentoskeletal changes associated with different activation protocols of maxillary expander. MATERIALS AND METHODS:A total of 101 subjects with constricted maxillary arches (49 males and 52 females; mean age 10.08 ± 1.57 years) were enrolled in the study. The study c...
journal_title:European journal of paediatric dentistry
pub_type: 杂志文章
doi:10.23804/ejpd.2018.19.02.10
更新日期:2018-06-01 00:00:00
abstract:AIM:The use of maxillary protraction appliances (MPAs) and Facemask (FM), with or without a rapid maxillary expansion (RME), have become a routine orthopaedic treatment procedure for the treatment of Class III in growing individuals; several authors have suggested that maxillary protraction could have a positive impact...
journal_title:European journal of paediatric dentistry
pub_type: 杂志文章,meta分析
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更新日期:2020-12-01 00:00:00
abstract:BACKGROUND:Tooth decay is still one of the most common chronic childhood diseases in the world, even if during the last five decades measures to combat dental caries have been developed, tested and applied in many populations. Preventive care and education programmes are essential to keeping children's mouths healthy. ...
journal_title:European journal of paediatric dentistry
pub_type: 杂志文章,评审
doi:10.23804/ejpd.2018.19.01.15
更新日期:2018-03-01 00:00:00
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journal_title:European journal of paediatric dentistry
pub_type: 杂志文章
doi:10.23804/ejpd.2020.21.01.01
更新日期:2020-03-01 00:00:00
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journal_title:European journal of paediatric dentistry
pub_type: 杂志文章
doi:
更新日期:2015-12-01 00:00:00
abstract:REVIEW:Molar Incisor Hypomineralisation (MIH) is defined as a hypomineralisation of systemic origin of one to four permanent first molars frequently associated with affected incisors. MIH molars are fragile and caries can develop very easily in those molars. Although MIH molars are well known by paediatric dentists and...
journal_title:European journal of paediatric dentistry
pub_type: 杂志文章,评审
doi:
更新日期:2003-09-01 00:00:00
abstract:BACKGROUND:This study reports a case in which a severely impacted lower first molar was recovered with a combined orthodontic therapy and minimally invasive oral surgery with special focus to patient's aesthetic demands. CASE REPORT:A 12-year- old female patient was complaining delayed eruption of mandibular right fir...
journal_title:European journal of paediatric dentistry
pub_type: 杂志文章
doi:
更新日期:2016-12-01 00:00:00
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journal_title:European journal of paediatric dentistry
pub_type: 杂志文章
doi:
更新日期:2016-03-01 00:00:00
abstract:CASE REPORT:This is a case report of diagnosis and management of a foreign body embedded in the gingivae of a preschool child. A 3 year-old girl presented with pain, mobility and intraoral oedema of the upper left primary canine (#63). An angular, diffuse radiolucency on the mesial aspect of the primary canine was obse...
journal_title:European journal of paediatric dentistry
pub_type: 杂志文章
doi:
更新日期:2004-03-01 00:00:00
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journal_title:European journal of paediatric dentistry
pub_type: 杂志文章
doi:
更新日期:2007-03-01 00:00:00
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journal_title:European journal of paediatric dentistry
pub_type: 杂志文章,随机对照试验
doi:
更新日期:2015-09-01 00:00:00
abstract:AIM:The aim of this work was to evaluate the oral health status in children and to correlate it with time spent in physical activity per week. MATERIALS AND METHODS:Fifty children (mean age 9±2 years) attending the first visit at the Paediatric Dental Unit of the University of Rome "Tor Vergata" have been included in ...
journal_title:European journal of paediatric dentistry
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更新日期:2018-12-01 00:00:00
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journal_title:European journal of paediatric dentistry
pub_type: 杂志文章
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abstract:AIM:The reported effects of Bionator treatment in patients with mandibular retrognathism are conflicting. This study evaluated the changes in craniofacial morphology resulting from treatment with a Bionator, based on measurement percentiles previously reported, to clarify the mechanism of the effect of this commonly us...
journal_title:European journal of paediatric dentistry
pub_type: 杂志文章,随机对照试验
doi:
更新日期:2016-09-01 00:00:00
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journal_title:European journal of paediatric dentistry
pub_type: 杂志文章
doi:
更新日期:2005-06-01 00:00:00
abstract:AIM:The aim of this epidemiological study was to describe the incidence and distribution of hyperdontia in the primary school population in Genoa (Italy) and to check its influence on the development of orthodontic problems in children. The collected data should also help to find out what is the best age range among ch...
journal_title:European journal of paediatric dentistry
pub_type: 杂志文章
doi:
更新日期:2006-06-01 00:00:00
abstract:AIM:This prospective, split mouth control study was planned to clinically evaluate shown short-term caries protection of glass ionomer cement on tooth enamel placed in contact to it, as a result of fluoride release. STUDY DESIGN:The sample consisted of 83 children, aged 4-7 years, visiting a private practice during th...
journal_title:European journal of paediatric dentistry
pub_type: 临床试验,杂志文章,随机对照试验
doi:
更新日期:2004-09-01 00:00:00
abstract:AIM:The aim of this study is to evaluate the dento-alveolar effects of slow maxillary expansion using the Leaf Expander in a sample of growing patients with maxillary transverse deficiency, unilateral cross bite and mandibular shift. MATERIALS AND METHODS:The study included 10 patients, 3 male and 7 female (mean age 7...
journal_title:European journal of paediatric dentistry
pub_type: 杂志文章
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journal_title:European journal of paediatric dentistry
pub_type: 杂志文章
doi:
更新日期:2011-09-01 00:00:00