Microleakage : a review

Small cross-sectional survey of composite restoration attributes associated with choices for replacement

“…Marginal staining is mentioned as a clinical sign of microleakage 6,8 and according to the present results, its clinical presence is a good parameter for indicating esthetic restoration replacement. Other clinical signs have been mentioned, such as tooth discoloration 11 and marginal fractures.…”

Small cross-sectional survey of composite restoration attributes associated with choices for replacement

“…Marginal staining is mentioned as a clinical sign of microleakage 6,8 and according to the present results, its clinical presence is a good parameter for indicating esthetic restoration replacement. Other clinical signs have been mentioned, such as tooth discoloration 11 and marginal fractures.…”

The Caries Status of Occlusal Amalgam Restorations with Marginal Defects

“…A reasonable hypothesis might be that these lesions formed soon after placement of the restoration, while the paths for leakage were still open and before corrosion products blocked the microspace between the filling and the cavity wall (Kidd, 1976). The results are at variance with those of J0rgensen and Wakumoto (1968), who, in another laboratory study of the same problem, claimed that unless a marginal defect was in excess of 50 Axm, no secondary caries would form.…”

Marginal microleakage of class II composite resin restorations due to restorative techniques

“…In addition, cavity-wall gap formation may cause marginal staining, postoperative sensitivity and secondary caries (4,6), although for Lima et al (12) microleakage and surface roughness did not influenced caries lesion formation. The adaptation of the material to the cavity depends essentially on their thermal expansion and dimensional changes during the process of polymerization (2,13,14). Differences in the coefficient of linear thermal expansion between the dental restorative materials and structures are largely responsible for the leakage (2), which justifies the use of thermal cycling in this work (11,15).…”

Small cross-sectional survey of composite restoration attributes associated with choices for replacement

“…Marginal staining is mentioned as a clinical sign of microleakage 6,8 and according to the present results, its clinical presence is a good parameter for indicating esthetic restoration replacement. Other clinical signs have been mentioned, such as tooth discoloration 11 and marginal fractures.…”

The Caries Status of Occlusal Amalgam Restorations with Marginal Defects

“…A reasonable hypothesis might be that these lesions formed soon after placement of the restoration, while the paths for leakage were still open and before corrosion products blocked the microspace between the filling and the cavity wall (Kidd, 1976). The results are at variance with those of J0rgensen and Wakumoto (1968), who, in another laboratory study of the same problem, claimed that unless a marginal defect was in excess of 50 Axm, no secondary caries would form.…”

Marginal microleakage of class II composite resin restorations due to restorative techniques

“…In addition, cavity-wall gap formation may cause marginal staining, postoperative sensitivity and secondary caries (4,6), although for Lima et al (12) microleakage and surface roughness did not influenced caries lesion formation. The adaptation of the material to the cavity depends essentially on their thermal expansion and dimensional changes during the process of polymerization (2,13,14). Differences in the coefficient of linear thermal expansion between the dental restorative materials and structures are largely responsible for the leakage (2), which justifies the use of thermal cycling in this work (11,15).…”

Small cross-sectional survey of composite restoration attributes associated with choices for replacement

“…Marginal staining is mentioned as a clinical sign of microleakage 6,8 and according to the present results, its clinical presence is a good parameter for indicating esthetic restoration replacement. Other clinical signs have been mentioned, such as tooth discoloration 11 and marginal fractures.…”

The Caries Status of Occlusal Amalgam Restorations with Marginal Defects

“…A reasonable hypothesis might be that these lesions formed soon after placement of the restoration, while the paths for leakage were still open and before corrosion products blocked the microspace between the filling and the cavity wall (Kidd, 1976). The results are at variance with those of J0rgensen and Wakumoto (1968), who, in another laboratory study of the same problem, claimed that unless a marginal defect was in excess of 50 Axm, no secondary caries would form.…”

Marginal microleakage of class II composite resin restorations due to restorative techniques

“…In addition, cavity-wall gap formation may cause marginal staining, postoperative sensitivity and secondary caries (4,6), although for Lima et al (12) microleakage and surface roughness did not influenced caries lesion formation. The adaptation of the material to the cavity depends essentially on their thermal expansion and dimensional changes during the process of polymerization (2,13,14). Differences in the coefficient of linear thermal expansion between the dental restorative materials and structures are largely responsible for the leakage (2), which justifies the use of thermal cycling in this work (11,15).…”