The present study was conducted to determine the effect on the distribution of stress with the use of short-post cores and over restorations composed of different materials. The restorative materials used were namely two different composite resin materials (Valux Plus and Tetric Flow), a polyacid-modified resin material (Dyract AP), and a woven polyethylene fiber combination (Ribbond Fiber + Bo...

Pain is one of the most frequent reasons for seeking dental treatment and clinical observations confirm that patients complain of dentinal sensitivity under different conditions and degrees of intensity. This is a very frequent problem after dental restorations with resin composite, even when there is no visible failure in the restoration. The aim of this bibliographic review was to identify th...

An outbreak of dermatitis in a car assembly factory is described; it affected 5o workers who handled rubber weatherstrips coated with an adhesive. The adhesive was found to contain para-tertiary butyl phenol (P.T.B.P.) formaldehyde resin. Of those patch tested 70% gave positive reactions to the adhesive and 65% to the resin. Improved methods of handling and personal protection succeeded in arre...

Although several methods including composite resin restoration and microabrasion have been used for management of white spot lesion, tooth jewelry can be considered as another noninvasive option. This case report describes the management of white spot lesions by using tooth jewelry. This report also highlights the patients' preference for tooth jewelry as an esthetic concern.

Root perforations are significant complications of endodontic treatment. However, when teeth are of strategic value, perforation repair is clearly indicated. The successful utilization and placement of a subgingival resin-ionomer restoration to repair an endodontic root perforation is demonstrated. Sustained tissue health and minimal probing depths at the surgical site demonstrate clinical succ...

Caries management at the lesion level is dependent on activity, presence of a cavitation (either cleanable or non-cleanable), and depth as evaluated via radiographic examination. A variety non-invasive, micro-invasive, minimally invasive treatment (with without restoration) options are available for primary permanent teeth. Non-invasive strategies include oral hygiene instructions, dietary coun...

The emergence and development of resin-based materials, such as resin composites adhesive systems, have shifted the restorative treatment anterior teeth with caries lesions and/or fractures. Thus, based on disadvantages indirect restorations, direct esthetic restorations are options even for exten sive loss hard tissues. This study aimed to describe discuss composite restoration performed solve...

The clinical longevity of tooth-coloured restorations, whether direct or indirect, using composites and ceramics, greatly depends on the quality and stability of their marginal adaptation. In this issue, two interesting studies 7,15 bring this subject and lead us to an exciting discussion. Poor marginal adaptation of direct and indirect restorations exposes the dentin pulp complex to the oral e...

Introduction: the Restoration of endodontically treated teeth is critical, and the Awareness of stresses developed by oblique and vertical forces in restorative methods take a great role in treatment plans. Due to the anatomical shape and inherent form of the stress distribution premolars, could be lost by fractures. Some fractures such as vertical fracture which is probable in...