TREATMENT APPROACHES FOR TRAUMATIZED ANTERIOR TEETH WITH EXCESSIVE TISSUE LOSS: THREE CASE REPORTS

Use of direct composite and indirect laminate veneers has been an alternative to metal- and all-ceramic crowns for anterior teeth restorations. Dental traumas are the most common reasons for excessive tissue loss. Treatment options depend on the amount of remaining tissue, the extent of the damage to dental pulp and periapical tissues and the time elapsed before dental treatment. The aim of this case report was to evaluate the direct and indirect techniques used in the treatments of traumatically fractured anterior teeth. In Case 1, a 29-year-old male patient attended to the clinics of the Department of Restorative Dentistry, Faculty of Dentistry, Istanbul University for the replacement of old composite restorations. According to anamnesis, the anterior teeth had fractured because of falling from bicycle. Dentinal pins used to retain the composite restorations were screwed out and indirect composite laminate veneers were placed. In Case 2, a 27-year-old male patient attended to our clinic for the treatment of his anterior teeth which were fractured due to a fall. A different type of technique, a silicon guide, was used to mimic the natural teeth surfaces precisely. In Case 3, a 16-year-old female patient attended to our clinic for the treatment of her anterior teeth which were fractured in a car accident. On clinical evaluation, related teeth were found to be non-vital and application of fiber posts was considered suitable before direct composite restorations. In conclusion, all of these techniques may be used for traumatized anterior teeth. Esthetical necessities and functional forces should be taken into consideration in material choice

SELF-ADHESIVE RESIN CEMENTS

New generation luting ajents have a lot of advantages such as; unnecessity to use etch, primer and bonding during application, less technique sensitivity and time, elimination of post operative sensitivity, fluoride release and to have wide range of indications. In-vitro tests resulted that self-adhesive resin cements have satisfactory adhesion to dentin and restorative materials. However, adhesion to enamel is less than the others. The aim of this review is to assess the literature about self-adhesive resin cements and their properties, application, adhesion to tooth structure(enamel, dentin, root dentin) and restorative materials (endodontic posts, ceramics, titanium abutments), marginal adaptation, microleakage, mechanic properties, biocompability, chemical adhesion, fluoride release and fractures published so far

FREQUENCY OF USAGE OF MOUTH RINSES IN THE SOCIETY

The aim of this study was to evaluate the general use of mouth rinses and to determine the reasons of selective factors and also peoples' expectations of those products. Question surveys were distributed to 1445 patients; 122 female and 108 males of them had declared that they had been using such mouth rinses. The results showed that the main objective to use mouth rinses were complaints of halitosis, and additionally cosmetic factors such as fresh smell of the mouth. Advices of dentists' affected the choices and patients bought the products from pharmacies. The perspective of the society on the usage of mouth rinses seemed very limited and prime choices were based on cosmetic reasons

FREQUENCY OF USAGE OF INTERDENTAL BRUSH IN THE SOCIETY

It is important to remove bacterial plaque formation in order to prevent dental caries and interproksimal pathology. Even though brushing is important for oral hygiene if it's not performed well only tounge, cheek, palate and occlusal surfaces would be cleaned. There are several methods for cleaning interproksimal area. It's important to use appropraite instruments in a proper way to perform an exact oral hygiene. The aim of this study is to investigate the frequency of other instruments' use in addition to tooth brush in order to remove bacterial plaque. It's important to educate patients to achieve a better oral hygiene. We concluded that the frequency of interdental brush use regularly and effectively is higher between the patients who have periodontal and orthodontic treatment as a result of recieve a better education from dentists

MICROHARDNESS OF THE APPROXIMAL AND PULPAL SURFACES IN CLASS II COMPOSITE RESTORATIONS: AN IN VITRO STUDY

The aim of this in vitro study was to examine the surface microhardness of composite resin materials when placed in class II cavities using two different matrix systems (Quickmat, Polydentia and Lucifix, HaweNeos). A hybrid composite (Tetric EvoCeram-Ivoclar Vivadent), two nanohybrid composites (Grandio-Voco, Synergy D6-Coltene/Whaledent) and a nanofil composite (Filtek Supreme XT-3M Espe) were placed in the silicon dublicates of class II cavities which were primarly prepared in plastic teeth without levels (4x4x4) mm (n=160). The cavity was prepared in plastic teeth (4mm bucco-lingual x 4 mm depth x 3mm mesio-distal) (KaVo, EWL model). Cavosurface margins were not beveled. The impressions of the tooth with the cavity preparation were taken using polyvinyl siloxan(Speedy/PuttyLigth-Coltene). A silicon material (AffinisPrecious-Coltene) was injected in the impressions and a silicon mold of the teeth and the cavity were obtained. The prepared silicon teeth were mounted in plastic jaw (KaVo, EWL model) to simulate proximal contact. Metal sectional matrix (Quickmat-Polydentia) (n=20) and clear matrix system (Lucifix-HaweNeos) (n=20) were prepared for each tooth. Wedges were used to stabilize the matrix. The cavities were restored incrementally in oblique layers with all four restorative materials. And each increment was light cured for 40 s (Celalux-Voco). The restorations were then removed from the cavities and surface hardness of the proximal and axio-pulpal surfaces were immediatly measured with Microhardness Vickers Test device (Clemex CMT 7, Clemex Labs.). Data were statistically analyzed with one way ANOVA and Tukey's Multiple Comprassion test. No significant differences were found between metal matrix and clear matrix (p>0.05). Microhardness of axio-pulpal surfaces were found significantly lower than the proximal surfaces for each restorative materials (p<0.05). Metal or clear matrix systems both could be used in the class II cavities in regard the surface microhardness of composite resins materials