PURPOSE The purpose of this study was to assess the periodicity of the recall examination and frequency and most often used technique for cleaning children's teeth. The resulting data were compared to current scientific evidence and recommendations to determine the appropriateness of practices by board-certified pediatric dentists. METHODS A 28-item questionnaire was mailed to the 1,034 membe...

OBJECTIVES Surface attributes of a restoration play an important role in adherence of plaque bacteria. Prophylaxis methods may be involved in modification of or damaging the restoration surface. The aim of the present study was to evaluate the effect of two prophylaxis methods on adherence of Streptococcus mutans to the surface of two restorative materials. STUDY DESIGN A total of 60 specimen...

In this study the development of a metakaolin based geopolymeric mortar to be used as bonding matrix for external strengthening of reinforced concrete beams is reported. Four geopolymer formulations have been obtained by varying the composition of the activating solution in terms of SiO₂/Na₂O ratio. The obtained samples have been characterized from a structural, microstructural and mechanical p...

Metakaolin (MK) prepared by the calcination of kaolin at 550 °C and fly ash (FA) from combustion black coal in a granulating boiler were used to prepare unfired ceramic bonding systems via alkali activation process. A long-term stability mechanical properties samples similar was observed. The optimal metakaolin ratio, type activator (NaOH or water glass) its concentration evaluated after hydrat...