Currently available adhesive bonding systems can maintain excellent marginal seal and wall adaptation, exhibiting more biocompatible. Several studies have shown that they do not inhibit successful healing when applied directly to the exposed pulp, indicating good possibilities for these materials to be used as a direct pulp capping agent. The exposed pulp capped with an adhesive resin has an ability to establish the organic repair, as long as it is kept in restful condition. However, bacterial invasion into an exposed cavity, generated by the failure of tight adaptation of a resinous material, causes pulp necrosis in most cases.
Generally, adhesive bonding systems occasionally exhibit technique-sensitivities in the clinical manipulation. In addition, there are a lot of clinical variables which affect the good adhesive properties obtained in laboratory studies. As clinicians, we should always be responsible for the reliable treatment and the control of postoperative discomfort. We should also establish the diagnosis of the exposed pulp tissue to achieve clinical success in the capping. It is necessary to improve the safety and reliability in the clinical manipulation in order to accept adhesive resin bonding systems as a direct pulp capping material.
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