OBJECTIVES To establish a three-dimensional (3D) finite element (FE) model of a maxillary first premolar and to evaluate the stress generated on the tooth (dentine) and on the indirect composite resin restorations by occlusal forces. METHODS An embedded intact maxillary first premolar tooth was sliced serially and scanned digitally parallel to the occlusal surface. The 64 images were assemble...

A sample of 85 dental transpositions in 75 subjects (27 male, 48 female; mean age at diagnosis 12.25 years) involving both maxillary and mandibular arches was analysed using dental panoramic radiographs and clinical records. Transposition affected the maxillary dentition (76 per cent) more frequently than the mandibular dentition (24 per cent). Unilateral transposition accounted for 88 per cent...

A thorough knowledge about the normal and abnormal variation of anatomy of the teeth and their detection is essential for clinical success. Maxillary fi rst premolars show a considerable variation in root canal morphology but the presence of three roots is rare. However, it must be taken considered radiographically and clinically during endodontic treatment. This article describes the diagnosis...

A pier abutment is the lone standing tooth between two critically situated edentulous spaces, in a frequently seen clinical situation, missing first premolar and molar seen, which leads to design where canine second acts as terminal abutments abutment. This fulcrum may lead debonding of less retentive during function, overcome this situation non rigid connector advised. paper presents case repo...