Shear bond strenght of compomer to deciduous dentin surface after air abrasion and conventional preparation – experimental studies
Journal Title: Nowa Stomatologia - Year 2015, Vol 20, Issue 1
Abstract
Introduction. Preparation and cavity restoration of deciduous teeth entail numerous difficulties because of its lower degree of mineralization and small quantity of hard tissue. Contemporary dentistry pays special attention to the minimal invasive preparation, principally important in pediatric dentistry. Air abrasion system may be an alternative to rotary instruments for dental hard tissues preparation, however removing of the smear layer in total-etch technique, or its modification using self-etch systems is required by this technique.Aim. The aim of this study was to assess bond strength of compomer – Compoglass F to primary dentin surface after air or conventional bur preparation and subsequent application of two adhesive systems (tech. total-etch) – Opti Bond Solo Plus and self-etch Xeno V.Material and methods. 118 samples of primary canine, first and second molars was examined. Total-etch system was applied on 28, whereas self-etch on 30 air abraded specimens. 60 samples were bur prepared to achieve a homogeneous rough surface, 31 of them were covered with total-etch and 29 with self-etch adhesive. All samples were bonded with compomer – Compoglass F. For the shear bond testing the specimens were examined in a universal testing machine Zwick Roell Z005 (Germany).Results. The mean bond strengths value of air abraded samples bonded with compomer was significantly higher for Xeno V – 3.897300 MPa than Opti Bond Solo Plus – 2.502679 MPa. The mean bond strengths value of bur preparation was 3.652774 MPa for Opti Bond Solo Plus and 5.497552 MPa for Xeno V, respectively.Conclusions. Better bond strength values of compomer-dentine interface were obtained after self etching systems, than total-etch application. Air abraded samples achieved lower bond strength values in shear test than bur prepared ones.
Authors and Affiliations
Sylwia Majewska-Beśka, Joanna Szczepańska
Keywords
Related Articles
- EP ID EP76514
- DOI 10.5604/14266911.1154075
- Views 142
- Downloads 0
Frequency and causes of premature extractions of deciduous molar teeth – a retrospective study
Introduction. Premature loss of deciduous molar teeth is a common cause of dysfunction of the masticatory system. Analysis of the causes of premature extractions of these teeth will allow the appropriate targeting of pre...
Total intrusion upper central incisors in primary dentition – report of three cases
One third of all children in the primary dentition stage suffer from traumatic injuries to the mouth. Tooth intrusion is the most common dental trauma during infancy. Intrusion drives the tooth deeper into alveolar socke...
Częstość i przyczyny przedwczesnych ekstrakcji zębów trzonowych mlecznych – badanie retrospektywne
Postawa i wiedza stomatologów w zakresie profilaktyki fluorkowej
Dentists’ attitude and knowledge in fluoride prevention
Introduction. The knowledge about fluoride prevention by dental practioners is essential for the expected efficacy of caries prevention.Aim. To recognize methods and measures of fluoride prevention used or recommended to...