A chance finding in a drop out case of apexification is reported. The incomplete root apex of the fractured tooth of a young boy was to be taken up for apexification. He was put on antibiotic cover and scheduled for procedure but did not turn up till six months latter. On radiological investigation at the end of the six months ‘root end’ was satisfactorily developed. Reactivation of mesenchymal cells in the periapical and pulpal tissue is discussed.

Root segments sheared by trauma usually fail to develop. Here a case is presented where a fragmented Hertwig's epithelial root sheath complete the formation of the detached root segment.

Internal resorption is an insidious process initiated within the pulp cavity, generally found in tooth or teeth with previous history of trauma. Since it is an asymptomatic condition, it can progress to an extent to cause perforation of the tooth. It is important to properly diagnose the case and initiate prompt endodontic treatment to improve the prognosis of such teeth. This paper presents a case of internal resorption which was treated successfully by non-surgical treatment with one year follow-up.

An in vitro study was designed to compare the cuspal fracture resistance of intact and endodontically prepared mandibular molars restored with different combination of restorative materials. All specimen teeth were subjected to a compressive load in a Hounsfield Tensometer. Teeth restored with composite resin after etching and bonding over a glass ionomer pulpal chamber restoration to the pulpal floor level, fractured to a higher compressive load than any other restorative material in the study. Teeth with MOD cavity preparation restored with amalgam over a composite resin pulp chamber restoration showed the least compressive strength.