Intraoral Repair of Direct and Indirect Restorations: Procedures and Guidelines

Abstract

The service life of defective direct or indirect restorations could be prolonged by repair or relayering actions where durable adhesion of resin-based composite materials is established for longevity of repairs. The advances in adhesive technologies have introduced several surface conditioning concepts to adhere resin composites onto different restorative materials. The purpose of this report is to summarize reasons for failure, survival of repaired reconstructions, elaborate upon types and mechanisms of available surface conditioning methods, and present operative dentists with practical guidelines for intraoral repair procedures.

Chipping of veneering ceramic on a lithium disilicate anterior single crown: Description of repair method and a fractographic failure analysis

“…In most clinical trials, the failure of porcelain/zirconia restorations was related to chipping of the veneering layer . Where applicable, the intraoral repair completed with resin composites is a conservative minimally invasive approach with a very good cost‐to‐benefit ratio . This type of repair is associated with reduced cost, treatment time, and increased longevity of the restoration for the patient …”

“…1 In most clinical trials, the failure of porcelain/ Where applicable, the intraoral repair completed with resin composites is a conservative minimally invasive approach with a very good costto-benefit ratio. [4][5][6][7]15 This type of repair is associated with reduced cost, treatment time, and increased longevity of the restoration for the patient. 7 Depending on the type and size of the fracture, different substrates may be exposed, requiring different treatment methods involving etching agents, adhesion promoters and/or sandblasting to ensure good adhesion of intraoral repair material to the ceramic surface.…”

“…Whenever possible, fractured areas should be repaired as in most cases they represent an esthetical and functional problem for the patient . Intraoral repair is a minimally invasive clinical approach that involves the direct restoration of the fractured area, without involving multiple clinical sessions and/or laboratory costs . Usually, repairs are made with restorative resin composites, however, before repairing a fractured area, it is essential to check whether the prosthesis has satisfactory marginal fit and proper esthetics .…”

“…5,6,14 Intraoral repair is a minimally invasive clinical approach that involves the direct restoration of the fractured area, without involving multiple clinical sessions and/or laboratory costs. 7,15 Usually, repairs are made with restorative resin composites, however, before repairing a fractured area, it is essential to check whether the prosthesis has satisfactory marginal fit and proper esthetics. 14 Furthermore, the type and size of the fracture must be taken into consideration because the clinical management and adhesion protocols are directly influenced by these factors and it has been shown that smaller areas that do not affect oral function are more easily repaired by clinicians.…”

“…14 Furthermore, the type and size of the fracture must be taken into consideration because the clinical management and adhesion protocols are directly influenced by these factors and it has been shown that smaller areas that do not affect oral function are more easily repaired by clinicians. 15 In order to increase the longevity of intraoral repair, a strong and stable adhesion between the restorative material and the fractured restoration must be obtained. 16,17 Multiple techniques have been suggested to make intraoral repairs with the objective of achieving good bond strength to the various substrates that may be present at the broken restoration.…”