Résumé
Aim: The aim of the study is to compare the microleakage of three different direct restorative materials (amalgam [AA], glass ionomer cements [GICs], and Cention N [CN]) in Class II restorations using stereomicroscope. Materials and Methods: A standardized Class II cavity preparation was made involving the proximal and occlusal surfaces. All prepared samples were randomly divided into 3 experimental groups, with 10 teeth each according to the restoration material used: Group I-AA; Group II-GICs; and Group III-CN. The restored teeth were stored for 24 h in distilled water and thermocycled for 500 cycles between 5°C and 55°C with a dwell time of 30 s in each bath. Samples were immersed in 0.5% basic fuchsin dye for 24 h. The teeth were sectioned along the mesiodistal direction. The dye penetration of the occlusal and gingival margins of each section was evaluated independently by the observer using a stereomicroscope. Results: Statistical analysis revealed lower microleakage scores in GIC and CN. Higher microleakage was observed in Group AA. Mean microleakage score of Group-I (AA) was the highest of all groups. Mean microleakage score of Group-III (CN) was the lowest of all groups. As per the critical differences (CD), the mean microleakage score of Group-III CN) was significantly lower than that of Group-I (AA), Group-II (GIC) (P < 0.01). There is no significant difference between the mean microleakage score of Group-I (AA) and Group-II (GIC). Conclusion: Out of all the restorative materials, CN a newer restorative material displayed minimum microleakage compared to AA and GICs.
Résumé
Anterior tooth fracture, as a result of traumatic injuries, is a common occurrence in routine dental practice. Trauma to the anterior teeth affects the physical and psychological well-being of the patient and hence, requires quick functional and esthetic repair. In spite of the advances in material science, none of the materials completely simulate the physical and mechanical properties of natural tooth structure. Henceforth, a biological restoration seems to be a successful biocompatible and cost-effective alternative approach for treating such cases. Here, we report the clinical case of esthetic and functional reconstruction of a fractured maxillary right central incisor by means of “biological restoration” using Homogenous fragment bonding associated with the cementation of biopins produced from human dentin in a 32-year-old male patient
Résumé
Periapical surgery aims to remove periapical pathology to achieve complete wound healing and regeneration of bone and periodontal tissue. Platelet rich fibrin (PRF) is a wonderful tissue engineering product and has gained much popularity due its promising results in wound healing bone induction. The features of this product are an attribute of platelet cells, which, after cellular interactions, release growth factors. This case report illustrates the use of PRF in bony regeneration after enucleation of cyst in anterior maxilla.