“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

Multidetector computed tomography dental scan analysis of root canal morphology of maxillary canine.

Aim: The aims of this in vitro study were to see potential applications of multidetector computed tomography (MDCT) in the analysis of root canal morphology. Materials and Methods: In this in vitro study measurement of root and canal diameters, root and canal diameter ratios, and radicular wall thickness at different levels in maxillary canines with long oval root canals. A total of 40 human maxillary canines, with single long oval canals were selected for this study. The specimens were analyzed with MDCT (16 slice) through dentascan software. The cross‑sections corresponding to 625 mm slice thickness from the radiologic apex were analyzed to measure the mesiodistal (MD) and buccolingual (BL) diameters of the canals and the thickness of the root and the walls. The BL/MD ratios of the canal (ΔC) and the root (ΔR) diameters were calculated, as was as the mean taper in both a BL and an MD dimension. Results: A high correlation was established between the shape of the root canal and the corresponding root. Conclusion: Clinical Implications of these techniques is useful to clinician and it can also be applied to improve preclinical training and analysis of fundamental procedures in endodontic and restorative treatment.

Comparison of fracture resistance of teeth restored with ceramic inlay and resin composite: An in vitro study.

Aim: The aim of this study was to evaluate the in vitro fracture resistance of teeth restored with bonded ceramic inlay and direct composite resin restoration in comparison to the normal tooth. Materials and Methods: This study evaluated the fracture strength of the teeth restored with bonded ceramic inlay and direct composite resin restoration in comparison to the normal teeth. Thirty intact human maxillary first premolars were assigned to three groups: Group 1 - comprising sound/unprepared teeth (control). Group 2 - comprising of Class-II direct composite resin restored teeth and Group 3 - comprising Class-II ceramic inlay restored teeth. Cavities were prepared with occlusal width of 1/3 intercuspal distance and 2 mm deep pulpally. Group 2 teeth were restored with hybrid composite resin (Z350 3M ESPE, USA) and group 3 teeth were restored with Vitadur Alpha alumina (Ivoclare Vivadent, Liechtenstein, Europe). Ceramic inlay was bonded with adhesive cement (rely X resin cement of 3MESPE, USA). The specimens were subjected to a compressive load until they fractured. Data were analyzed statistically by unpaired Student's t test. Results: The fracture resistant strength, expressed as kilonewton (KN), was group 1 - 1.51 KN, group 2 - 1.25 KN, and group 3 - 1.58 KN. Statistically, group III had highest fracture resistance followed by group I, while group II had the lowest average fracture resistance. Conclusion: The fracture resistant strength of teeth restored with ceramic inlay was comparable to that of the normal intact teeth or slightly higher, while teeth restored with direct composite resin restoration showed less fracture resistant strength than that of the normal teeth.