“Biologic Restoration:” A case report of a novel method for restoration of a fractured anterior tooth

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

Cone-beam computed tomography assessment of root canal transportation and evaluation of canal centering using Protaper Gold, XP Endoshaper, and Edgefile X7

Aim: This study aims to access and evaluate canal transportation and canal centering ability of Protaper Gold (PTG), XP EndoShaper (XPS) and EdgeFile X7 using cone-beam computed tomography (CBCT). Materials and Methods: Sixty freshly extracted single-rooted premolars with mature apex and a canal curvature of 10°–20° were chosen and arbitrarily divided into three experimental groups (n = 20). After decoronation, the teeth measuring 16 mm were included in the study for standardization. According to the manufacturer's instructions, canals were shaped with PTG in Group 1, XPS in Group 2 and EdgeFile X7 in Group 3. For the evaluation of the root canal transportation at 2 mm, 4 mm, and 6 mm from the apex, canals were scanned before and after instrumentation using CBCT scanner. Independent t-tests and one-way ANOVA were used to analyze data and significance level was set at P < 0.05. Results: XPS showed significantly lower canal transportation than PTG system. Moreover, the centering ability of the XPS significantly higher than EdgeFile X7 and PTG at all root levels (P < 0.05). Conclusion: The XPS and EdgeFile X7 rotary file system showed the lowest transportation in both mesiodistal and buccolingual directions and also the highest centering ability. The PTG file showed the highest transportation and lowest centering ability