Trauma may result in craze lines on the enamel surface, one or more fractured cusps of posterior teeth, cracked tooth syndrome, splitting of posterior teeth, and vertical fracture of root. Out of these, management of some fractures is of great challenge and such teeth are generally recommended for extraction. Literature search reveals attempts to manage such fractures by full cast crown, orthod...

OBJECTIVES To compare re-treatment choices for MOD amalgam or resin composite restorations with or without cusp fracture among dentists in Kuwait. METHODS A random sample of 158 dentists completed a questionnaire designed to obtain socio-demographic, educational and work-related information and their choices for re-treatment of four scenarios of failed restorations on lower first molars: 1. M...

In this study, we aimed to compare the buccal and palatal cusp fracture resistance of endodontically treated primary maxillary premolars with mesial-occlusal-distal cavity which was restored with composite resin by using different types of bonding adhesives. A hundred extracted double rooted human maxillary premolars were randomly separated into five groups in which 20 teeth were included in ea...

background and aim: the present study aimed at determination of the fatigue resistance and failure mode of cusp-replacing onlays in endodontically treated premolars using indirect composite resin restorations. materials and method: in this experimental study, 84 human premolars were randomly divided into 7 groups of 12. these groups were prepared as follows: intact teeth used in group1 as contr...

Objectives: Evaluating the fracture resistance and failure mode of human maxillary premolars restored with two ceramic onlay materials prepared preparation designs. Materials methods: A total 40 extracted, were selected divided into groups according to design; Group A: MOD cavity anatomical reduction functional cusp F: flat cusp. Each group was subgroups material construction; Subgroup S: using...

introduction: the aim of the present study was to evaluate the effect of three types of luting cements used for post cementation on the fracture resistance of endodontically treated maxillary premolars, restored with resin composite. materials and methods: one hundred intact single-rooted human maxillary premolars were randomly divided into 5 groups of 20 each. in groups 2-5, post spaces were p...

Background and Aim: Restoration of endodontically treated teeth is one of the most important and challenging topics in restorative dentistry. Longevity of such restorations is an essential factor in treatment planning. Amalgam build-up is a conservative method for restoration of endodontically treated teeth. Therefore, this study aimed to assess the longevity of this type of restoration in endo...

talon cusp is an accessory cusp similar to a projection, extending from the cingulum or cemento-enamel junction to the incisal edge. it occurs on labial or palatal surfaces of primary or permanent anterior teeth in both arches. this accessory cusp can occur as an isolated entity or in association with other dental anomalies. occurrence of a talon cusp on supernumerary teeth is rare and uncommon...