Sule Bayrak

Polyethylene fiber-reinforced composite resin used as a short post in severely decayed primary anterior teeth: a case report.

The case report presented here is of a 4-year-old girl with severely decayed maxillary anterior teeth. After root canal treatment, the primary maxillary central and lateral incisors were reinforced using polyethylene fiber-reinforced composite resin short posts and restored using celluloid strip crowns. The technique described here offers a simple and effective method for restoring severely decayed primary anterior teeth that reestablishes function, shape, and esthetics.

Shear bond strength of self-adhering flowable composite on dentin with and without application of an adhesive system

Purpose The aim of this study was to evaluate the shear bond strength (SBS) of conventional and self-adhering flowable resin composites on the dentin surfaces of primary and permanent teeth and to evaluate the effect of the application of an adhesive system under self-adhering flowable resin composite on SBS. Methods Prepared permanent and primary tooth dentin surfaces were randomly distributed into 3 groups according to application protocols as follows: group 1: Vertise Flow; group 2: OptiBond + Filtek Ultimate; and group 3: OptiBond + Vertise Flow. A universal testing machine was used to measure SBS of prepared specimens, and data were analyzed using 1-way ANOVA and Tukey test. Results Statistically significant differences were observed among all groups for primary and permanent teeth (P<0.05). The highest values were observed in group 2, followed by group 3, in both permanent and primary teeth. SBSs of all groups were significantly higher for permanent teeth than for primary teeth (P<0.05). Conclusion Although SBS values of Vertise Flow groups were lower than those for conventional flowable resin composite groups, with further developments in material technology, self-adhering materials could be promising materials especially for pediatric dentistry.

Fluoride and aluminum release from restorative materials using ion chromatography.

Objective The aim of this study was to determine the amounts of fluoride and aluminum released from different restorative materials stored in artificial saliva and double-distilled water. Material and Methods Cylindrical specimens (10 x 1 mm) were prepared from 4 different restorative materials (Kavitan Plus, Vitremer, Dyract Extra, and Surefil). For each material, 20 specimens were prepared, 10 of which were stored in 5 mL artificial saliva and 10 of which were stored in 5 mL of double-distilled water. Concentrations of fluoride and aluminum in the solutions were measured using ion chromatography. Measurements were taken daily for one week and then weekly for two additional weeks. Data were analyzed using two-way ANOVA and Duncans multiple range tests (p<0.05). Results The highest amounts of both fluoride and aluminum were released by the resin-modified glass ionomer cement Vitremer in double-distilled water (p<0.05). All materials released significantly more fluoride in double-distilled water than in artificial saliva (p<0.05). In artificial saliva, none of the materials were observed to release aluminum. Conclusion It was concluded that storage media and method of analysis should be taken into account when the fluoride and aluminum release from dental materials is assessed.

Usage of white mineral trioxide aggregate in a non-vital primary molar with no permanent successor

The aim of this study was to present the treatment and long-term follow-up of a case in which white mineral trioxide aggregate (WMTA) was used in the pulpectomy of a non-vital primary molar with no permanent successor. The physiological, aesthetic and functional consequences of treating primary teeth without permanent successors makes this a unique challenge. In the present case, WMTA was used in the pulpectomy of a primary molar with no permanent successor in an 8-year-old child. The treatment was considered successful. Follow-up examinations showed that root resorption in the mesial root surface, with no infra-occlusion or ankylosis 36 months after treatment. WMTA may be considered as an alternative pulpectomy material for non-vital primary teeth with no permanent successors, although long-term clinical studies are still needed.

Effect of new haemostatic agent on microtensile bond strength of two adhesive systems to dentin

Abstract This study aimed to evaluate the effects of a new haemostatic agent (Ankaferd Blood Stopper, ABS) on the microtensile bond strength (μTBS) of self-etch and etch and rinse adhesives to dentin. Flat dentin surfaces were divided into four groups per adhesive according to contamination procedures: group 1 (control): no contamination; group 2: blood; group 3: ABS; group 4: blood and ABS. Specimens were tested for μTBS and data were analysed using analysis of variance and Tamhane tests. All groups showed lower μTBS than the control group (p<0·05). The μTBS in groups 3 and 4 was significantly higher than in group 2 (p<0·05). No statistically significant differences were observed in the μTBS of the adhesives (p>0·05). The μTBS of the ABS groups was lower than the μTBS of the control groups but higher than the μTBS of the blood contaminated groups. These results indicate that ABS application may be recommended after blood contamination during restorative procedures.

Partial Pulpotomy with BioAggregate in Complicated Crown Fractures: Three Case Reports.

This report describes three cases of complicated crown fractures treated with partial pulpotomy using BioAggregate. Three maxillary permanent central incisors with complicated crown fracture were treated by partial pulpotomy using BioAggregate and reviewed clinically and radiographically for 24 months. Throughout this period, there was no spontaneous pain, periapical radiolucency, and coronal discoloration; the pulp was observed to be vital. Based on these findings, it was concluded that BioAggregate can be used in partial pulpotomy treatment of complicated crown fracture.

Solubility of Two Resin Composites in Different Mouthrinses

Aim. This study aimed to compare the solubility of a universal restorative resin composite (Filtek Z250; FZ250) and a silorane-based resin composite (Filtek Silorane; FS) after immersion in alcohol-containing mouthrinse, alcohol-free mouthrinse, and artificial saliva. Methods. 30 discs (10 mm × 1 mm) were prepared from each material and desiccated until a constant mass was obtained. Specimens were immersed in the test solutions for two days and desiccated again. Solubility was calculated based on the change in weight of each specimen before and after immersion. Data was analyzed using two-way ANOVA and Tukeys Post Hoc test (P < 0.05). Results. Solubility values for both resin composites were the highest in the alcohol-containing mouthrinse. FZ250 showed greater solubility than FS; the difference was only significant in artificial saliva. Conclusion. Both resin-composite materials tested exhibited some degree of solubility in each of the test solutions. The use of an alcohol-free mouthrinse may be preferable for patients with extensive composite restorations.

Histological evaluation of Ankaferd blood stopper, ferric sulfate and formocresol as pulpotomy agents in rat molars

The aim of this study is to evaluate the use of Ankaferd blood stopper (ABS) as a pulpotomy agent in rat molars and to compare it to ferric sulfate (FS) and formocresol (FC). Pulpotomies of 72 rat molar teeth were performed with ABS, FS and FC. Access cavities were sealed with Intermediate Restorative Material. Histological evaluations were conducted at 7, 15 and 30 days post-operatively. Statistical analysis was performed using the Kruskal-Wallis and Dunn′s multiple comparison tests. There was no significant difference in inflammatory cell response between groups at 7 and 15 days (P > 0.05). However, at 30 days, a higher density of inflammatory cells was observed in the FC group when compared with the other groups (P < 0.05). No significant differences in hard-tissue formation were observed between groups at any time tested. Based on the histological findings of this study, ABS may be considered an acceptable alternative to FC and FS for primary teeth pulpotomies. Further, clinical research is needed to confirm this finding.

Effect of Fluoride Varnish Containing CPP-ACP on Preventing Enamel Erosion

This study aimed to investigate the effect of a fluoride varnish with added casein phosphopeptide-amorphous calcium phosphate treatment on the prevention of enamel erosion, and it compared the results with those of other fluoride varnishes. Fifty enamel specimens obtained from bovine incisors were randomly divided into five groups (n = 10) based on the type of surface pretreatment used: intact enamel (Group 1); intact enamel+erosive cycles (Group 2); intact enamel+MI varnish+erosive cycles (Group 3); intact enamel+Clinpro White varnish+erosive cycles (Group 4); and intact enamel+Duraphat varnish+erosive cycles (Group 5). The specimens were subjected to erosive cycles for five days. The surface roughness was evaluated using atomic force microscopy. The results were statistically analyzed using one-way ANOVA and Tukeys tests. Group 1 had the smoothest surfaces. After the erosive cycles, the greatest surface roughness values were observed in Group 2, followed by Groups 5, 4, and 3, respectively. Statistically significant differences were observed among all groups (p < 0.05). The application of fluoride varnishes had some positive effects on preventing enamel erosion; however, the most effective agent was fluoride varnish with added casein phosphopeptide-amorphous calcium phosphate.