A prospective, randomized, double-blind clinical trial of one nano-hybrid and one high-viscosity bulk-fill composite restorative systems in class II cavities: 12 months results.

BACKGROUND: Recently, manufacturers have introduced bulk-fill composite resins that reportedly can be placed in increments of 4 mm or greater. OBJECTIVE: The purpose of this article was to report the results of 12 months prospective randomized clinical trial that evaluated the clinical performance of one high-viscosity bulk-fill composite resin in Class II cavities of posterior teeth. MATERIALS AND METHODS: Thirty-four participantshad at least two Class II cavities included the study. Class II cavities restored with either a Tetric EvoCeram bulk-fi fill or universal nano-hybrid resin composite (Tetric EvoCeram). A total of 74 restorations (37 with each material) on 34 patients were placed according to the manufacturers' instructions by one calibrated operator. RESULTS: Seventy restorations were evaluated after 12 months evaluation period. No postoperative sensitivity, anatomic form, retention, and secondary caries were observed after 6 and 12 months. Regarding the items color match, marginal discoloration, and marginal adaptation, the statistical analysis did not detect any statistical significance between two materials (P > 0.05). CONCLUSION: After 12 months of clinical service, all restorations evaluated for both materials were classified as ideal, receiving predominantly Alfa scores for all parameters analyzed. CLINICAL RELEVANCE: This study presents that high-viscosity bulk-fill resin composites (RCs) perform just as well as nano-hybrid RCs with the 2 mm RC layering technique, therefore could be alternative to conventional nano-hybrid RCs.

A retrospective evaluation of traumatic dental injury in children who applied to the dental hospital, Turkey.

OBJECTIVE: The purpose of this study was to analyze traumatic dental injuries in children visiting the dental hospital emergency department in Samsun of Turkey, in the period from 2007 to 2011. MATERIALS AND METHODS: Data of age, gender, causes of dental trauma, injured teeth, type of dental injuries, the application period, the dental treatments, and traumatic dental injuries according to the seasons were obtained from the records at dental hospital. RESULTS: Of all 320 patients with traumatic dental injury, 205 were boys and 115 were girls with a boys/girls ratio 1.78:1. Traumatic dental injury was observed more frequently in the 7-12 age groups: 52.5% in girls and 67.8% in boys. Falls are the major cause of traumatic dental injury in the age group 6-12 (51.4%). Sport activities are a common cause of traumatic dental injury in the 7-12 age group (34.2%). Patients visited a dentist within approximately 2 h (57.1%). The upper anterior teeth were subjected to trauma more frequently than the lower anterior teeth. The maxillary central incisors were the most commonly affected teeth, and the mandibular canins were the least affected teeth. In primary teeth, avulsion was the most common type of dental injury (23%); on the other hand, enamel fractures were the most common type of dental injury (30.6%) observed in permanent teeth. In the primary dentition, the most commonly performed treatments were dental examination and prescribing (70%). The most common treatment choices in permanent teeth were restoration and dental examination (49.7 and 15.8%, respectively). CONCLUSION: The results of the study show that the emergency intervention to traumatized teeth is important for good prognosis of teeth and oral tissues. Therefore, the parents should be informed about dental trauma in schools, and dental hospital physicians should be subjected to postgraduate training.

A retrospective comparison of dental treatment under general anesthesia on children with and without mental disabilities.

PURPOSE: The purpose of this study is to determine the properties of the dental procedures performed on children with dental problems under general anesthesia and compared between the patterns of dental treatment provided for intellectual disability and non-cooperate healthy child. MATERIALS AND METHODS: In this retrospective study, the records of patients between the ages of 4 and 18 who were treated under general anesthesia were evaluated. Patients were divided into two groups: Those with intellectual disability and healthy patients who had difficulty cooperating. A statistical analysis of the mean standard deviation was conducted with a focus on two factors: Age and dental treatment methods. RESULTS: In this study, it was observed that restorative treatment and tooth extraction was generally higher in intellectual disability children than in their healthy children. When evaluating the health status of teeth, the value of decayed missing and filled teeth (dmf-t) was observed to be close in healthy and intellectual disability individuals in the 4-6 age groups; it was higher in individuals with intellectual disability in the 7-12 age groups. There was no significant difference in terms of periodontal treatment and fissure sealants in the 12-18 age groups. CONCLUSIONS: By comparing the different patient groups who received dental treatment under general anesthesia, both the number of teeth extracted and DMF-T indices were higher in the disabled group. Therefore, especially more efforts should be made at encouraging these patients to visit the dentist earlier and receive primary preventive care.