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  • 1
    Electronic Resource
    Electronic Resource
    Surface roughness and wettability of enamel and dentine surfaces prepared with different dental burs (2001)
    Oxford UK : Blackwell Science Ltd
    Journal of oral rehabilitation 28 (2001), S. 0 
    Details
    ISSN: 1365-2842
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The aim of dental adhesive restorations is to produce a long lasting union between the restoration and the tooth structure. This bond depends on many variables including the geometry of the preparation and the type of bonding agent or luting cement. It is therefore suggested that the topography of the tooth surface may influence the wettability and the bonding quality of adhesive systems. This study measured the surface roughness and wettability of enamel and dentine after preparation with different dental burs. The mesial and distal surfaces of 15 extracted sound human premolar teeth were prepared with a tungsten carbide crown bur, a diamond bur and a tungsten carbide finishing bur and finished in enamel or dentin, respectively. The prepared surfaces were analysed with a surface profilometer and scanning electron microscopy (SEM). The contact angle of distilled water on each of the prepared surfaces was used as the measure of wettability. The differences in average surface roughness (Ra) were significant between the rotary instrument groups, as revealed by a two-way ANOVA test. No differences were detected between enamel and dentine surfaces prepared with the same type of dental bur. The smoothest surfaces were those completed with tungsten carbide finishing burs. The diamond bur preparations were intermediate in the roughness assessment and the tungsten carbide crown burs gave the roughest surfaces. There were no significant differences in the contact angle measurements for the various groups. It was concluded that the surface roughness of enamel and dentine prepared by different rotary instruments had no significant influence on the wettabilty of distilled water on these surfaces.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2842.2001.00722.x
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Immediate resin-bonded bridgework: results of a medium-term clinical follow-up study (2004)
    Oxford, UK : Blackwell Science Ltd
    Journal of oral rehabilitation 31 (2004), S. 0 
    Details
    ISSN: 1365-2842
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: summary  A total of 21 immediate resin-bonded bridges were inserted under controlled and standardized clinical conditions and evaluated over a period of 35 months. During the evaluation period, two bridges debonded (9·5%). The debonded bridges were re-cemented successfully. This low incidence of debonding indicates that this simple alternative procedure for the immediate replacement of a single unsaveable tooth was satisfactory. The subjects included in this study expressed their satisfaction with this form of treatment.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.0305-182X.2003.01174.x
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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