The efficacy of gaseous ozone on some cariogenic bacteria.

The aim of this study is to analyze ozone impact on some cariogenic bacteria in ex vivo and in vitro conditions. The in vitro part of study inoculated dentine with strains of Streptococcus mutans ATCC 33402 and Lactobacillus paracasei ATCC 11974 bacteria. Samples of dentine before and after 40s ozone treatment were collected and anaerobically incubated.

Caries prevalence among schoolchildren in Zagreb, Croatia.

Aim: To investigate the prevalence of dental caries and treatment needs in schoolchildren aged 7-14 years from Zagreb.

Methods: Dental examinations based on the World Health Organization criteria were performed on 1168 children in the period 2009-2010. The teeth were clinically examined with standard dental instruments using visual-tactile method under standard dental light.

Clinical evaluation of indirect composite restorations at baseline and 36 months after placement.

This study determined the differences in clinical performance between materials for indirect composite restorations based on Ormocer (Admira) and nano-hybrid resin composite (Grandio), both at baseline and 36 months after placement. Modified USPHS criteria were used to analyze the degree of quality. Marginal integrity was assessed 36 months after placement, whereupon, the restorations fabricated from Grandio achieved an Alpha 1 score of 70.

The influence of Healozone on microleakage and fissure penetration of different sealing materials.

The preventive effect of sealing materials depends on ability to penetrate into the fissures, and microleakage absence, resulting with better clinical success. The aim of present study was to investigate the influence of ozone on microleakage and penetration of nanoparticle fissure sealing resin and flowable composite, and quantitative and qualitative analysis of microleakage. Forty extracted non carious third molars were randomly divided in 4 groups.

Clinical comparison of flowable composite to other fissure sealing materials--a 12 months study.

The subject of the study was the clinical analysis of six different sealing materials over a 12-months period. It was necessary to prove the clinical success of sealing with flowable composite with the use of adhesive system and preventing effect of sealants on caries developement. Our study included children aged from 6 to 15, and we sealed 326 teeth with materials from the group of flowable composites in combination with adhesive system (Admira Bond+Admira Flow, Excite+Tetric Flow) and other sealing resins (Teethmate F1, Admira Seal, Helioseal Clear Chroma, Fissurit FX).

[Combined surgical-orthodontic therapy for compound odontoma].

Odontogenic tumor is a rare condition in dental medicine that mostly proceeds unrecognized until the occurrence of clinical symptoms such as delayed eruption, or is incidentally detected on routine x-ray examination. The exact cause is not known, however, previous dental trauma and infection have been postulated as the potential factors in the development of odontogenic tumor. The earliest possible operative extirpation of the tumorous growth is recommended to eliminate permanent tooth impaction and to enable normal growth of the teeth.