Anatomical variations in the root are quite possible, if such teeth are infected, it is challenging to treat them. A patient with two rooted maxillary lateral incisor having open apex with periapical lesion reported to the department. Non-surgical endodontic treatment was initiated under magnification, open apex was sealed with MTA plug and root canal treatment completed. The case was followed up for one year and there was radiographic healing of periapical lesion.

Aims and objectives: Hypersensitivity is a multietiological clinical problem. Many desensitizing treatments have been advocated to reduce the hypersensitivity. The aim of this study is to evaluate the effect of few in-office desensitizing agents on the bond strength of composite restoration.Materials and methods: Forty-eight sound human premolars were used for the study. The occlusal surface of each teeth was grounded with a diamond disk to expose the flat dentin surface, polished with 120 and 320 silicon grit sand paper. The specimens were then divided into four groups (n = 12) based on the type of dentin desensitizing agent given. Group I was treated with Vivasens, group II was treated with MS Coat F, group III was treated with Solo Eze, and group IV served as a control where no desensitizing agent was used.The specimens were treated with one-step self-etch and restored with composites according to the manufacturer's instructions. The specimens were then stored in distilled water for 24 hours and subjected to Universal Testing Machine to check the tensile bond strength.Results: Statistical analysis of the data obtained revealed the mean values for the tensile bond strengths were 92.53, 71.07, 95.07, 160.28 N for groups I to IV respectively. These values were statistically significantly different between groups pretreated with desensitizing agents as compared with control group. Conclusion:Dentin pretreated with desensitizing agents has lower tensile bond strength with resin composites as compared with dentin that is untreated. Among the experimental groups, hydroxyethyl methacrylate (HEMA)-containing desensitizing agents had better bond strength compared with the fluoridecontaining agents.