Marginal quality and microleakage of adhesive class V restorations

Manhart, Juergen; Chen, Hong Yan; Mehl, Albert; Weber, Karin; Hickel, Reinhard

doi:10.1016/s0300-5712(00)00066-x

Cited by 93 publications

(73 citation statements)

References 25 publications

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“…However, these observations are in contrast to the findings of Manhart et al [68], where almost perfect marginal adaptation in class-II mod enamel cavities were reported after loading when direct composite, composite inlays, and ceramic inlays were used as filling or restoration materials. In the study by Manhart [68] The lower Youngs modulus of composites might be responsible for this observation [72]. In Case of Paradigm MZ the results could be transferable to Lava TM Ultimate (3M Espe, Seefeld, Germany) due to the similar mechanical properties like Youngs modulus.…”

Section: Discussioncontrasting

confidence: 94%

“…However, a large cementing space partially compensates for the polymerization stresses, allowing the tooth structure and the restoration to undergo micro movements during the luting procedure [65][66][67]. However, these observations are in contrast to the findings of Manhart et al [68], where almost perfect marginal adaptation in class-II mod enamel cavities were reported after loading when direct composite, composite inlays, and ceramic inlays were used as filling or restoration materials. In the study by Manhart [68] The lower Youngs modulus of composites might be responsible for this observation [72].…”

Section: Discussionmentioning

confidence: 99%

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Marginal adaptation of ceramic and composite inlays in minimally invasive mod cavities

et al. 2013

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OBJECTIVES: This study aims to evaluate the effect of a minimally invasive mesial-occlusaldistal (mod) preparation on the marginal adaptation of ceramic and composite inlays with the aim of saving sound dental substance. MATERIALS AND METHODS: Class II mod cavities were prepared in 50 extracted human molars and randomly allocated to five groups (n = 10). In all groups, the mesialproximal box margins were located in the dentin, 1 mm below the cementoenamel junction (CEJ), while the distal box margins were 1 mm above the CEJ. In groups A and B, conventional standard preparations with a divergent angle of = 6°were prepared. In groups C, D, and E, minimally invasive standard preparations with a convergent angle of = 10°were prepared. In groups A and D, composite inlays and, in groups B and C, ceramic inlays were fabricated (chairside economical restoration of esthetic ceramics (CEREC)) and adhesively inserted. In group E, a direct composite filling using the incremental technique was placed. Replicas were taken before and after thermomechanical loading (1,200,000 cycles, 50/5°C, max. load 49 N). Marginal integrity (tooth-luting composite, luting composite-inlay) was evaluated by scanning electron microscopy (×200). The percentage of continuous margins in the different locations was compared between and within groups before and after cycling, using ANOVA and Scheffé post hoc test. RESULTS: After the thermomechanical loading, no significant differences were observed between the different groups with respect to the interface of luting composite-inlay. At the interface of toothluting composite for preparations involving the dentin, groups A and B behaved significantly better compared to the control group E, which in turn were not different to groups C and D. CONCLUSION: Composite and ceramic inlays inserted in minimally invasive prepared mod cavities result in margins not different from those of inlays placed in conventional mod preparations. Direct composite filling margins, however, were inferior to those attained by conventional indirect restorations. CLINICAL RELEVANCE: Minimally invasive preparations for mod inlays with undercuts show marginal adaptation equal to that of conventional inlay preparation design. Keywords: Composite inlay, ceramic inlay; minimally-invasive; marginal adaption Declaration of interests:The authors declare they have no conflicts of interest. AbstractObjectives To evaluate the effect of a minimally-invasive mod-preparation on the marginal adaptation of ceramic and composite inlays with the aim of saving sound dental substance. Materials and MethodsClass II mod-cavities were prepared in 50 extracted human molars and randomly allocated to five groups (n=10). In all groups, the mesial-proximal-box-margins were located in dentin, 1 mm below the cementoenamel junction (CEJ), while the distal-boxmargins were 1 mm above the CEJ. In group A and B, conventional standard preparations with a divergent angle of α = 6° were prepared. In Group C, D and E minimally invasive standard preparation...

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Section: Discussioncontrasting

confidence: 94%

Section: Discussionmentioning

confidence: 99%

Marginal adaptation of ceramic and composite inlays in minimally invasive mod cavities

et al. 2013

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“…ing depth produced by phosphoric acid is adequate for the resin to produce a good seal, which is always higher in the occlusal versus the gingival wall. [26][27] On the other hand, the self-etching adhesive showed slight leakage, because the weaker acidity of the primer achieves inadequate etching depth. In the gingival wall, pulp pressure decreased the sealing with etch & rinse but not with self-etching adhesives.…”

Section: Discussionmentioning

confidence: 99%

Effect of Pulp Pressure on the Micropermeability and Sealing Ability of Etch & Rinse and Self-etching Adhesives

Rosales-Leal¹,

Torre-Moreno²,

Bravo³

2007

Operative Dentistry

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This research evaluated the effect of pulp pressure on the micropermeability and sealing ability of etch & rinse and self-etching adhesives. Two etch & rinse adhesives (Prime&Bond NT and Admira Bond) and one self-etching adhesive (Xeno III) were used. Adhesive layer micropermeability was evaluated by using confocal laser scanning microscopy (CLSM). Eighteen molars were connected to a pulp pressure device and divided into two groups. One group was restored with pulp pressure and the other group without. Each group was divided into three subgroups according to the adhesive used. The adhesives were rhodamine-labeled and Class V cavities were restored. After restoration, all specimens were kept under pulp pressure conditions for 24 hours with fluorescein-labeled pulp fluid. The specimens were sectioned and the axial wall was observed under CLSM. A microleakage test was performed to evaluate the sealing. Thirty molars were divided into two groups. One group was prepared with a pulp pressure device and the other group without. Each group was divided into three subgroups as a function of the adhesive used. Class V cavities were restored and the specimens were immersed in fuchsin and sectioned. Microleakage and dentin penetration were recorded in the occlusal and gingival walls. A CLSM study showed that the etch & rinse adhesives had higher micropermeability compared to the self-etching adhesives and pulp pressure made all the adhesives more permeable. In the occlusal wall, the best sealing (hermetic) was Effect of Pulp Pressure on the Micropermeability and Sealing Ability of Etch & Rinse and Self-etching Adhesives JI Rosales-Leal • FJ de la Torre-Moreno • M Bravo Clinical RelevanceEtch & rinse adhesives are much more micropermeable and affected by pulp fluid compared with self-etching adhesives. Pulp pressure reduces dentin sealing with etch & rinse adhesives but not with self-etching adhesives. Pulp pressure has no effect on enamel sealing, which is lower when self-etching adhesive is used.

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“…Cavities, with dimensions of 4 × 3 mm and 2 mm of depth were prepared on the buccal surface of each tooth, forming, in section, an axial wall and two perpendicular (cervical and coronal) walls. Variation of ± 1 mm was considered acceptable [21] (Fig. 1).…”

Section: Sample Preparationmentioning

confidence: 99%

Effects of Pre-Etching in Class V Cavities Restored with Silorane and Methacrylate-Based Composites

Giudice

Lizio

et al. 2016

Dent. Med. Probl.

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Self-etching adhesive (SEA) systems were recently introduced to simplify the bonding procedure, reducing the number of operative steps, and were initially considered a good replacement for the etch-and-rinse adhesive system that uses orthophosphoric acid (H₃PO₄) (PA) for enamel and dentin etching [1]. However, the recent literature underlines that the effectiveness of the enamel bonding with SEA is questionable [2]. This technique in fact provides a bond strength of compos- AbstractBackground. Self-etching adhesive (SEA) systems were recently introduced to simplify the bonding procedure and were initially considered a good replacement for the etch-and-rinse adhesive system that uses orthophosphoric acid (PA) for enamel and dentin etching. Siloranes, a new class of ring opening monomers, were synthesized to overcome the problems related to polymerization shrinkage. This new type of monomer is obtained from the reaction of oxirane and silorane molecules with a volumetric shrinkage determined to be 0.99%. Objectives. To assess the influence of preliminary phosphoric acid etching on the sealing ability of silorane-and methacrylate-based composites. Material and methods. Standard class V cavities were prepared on the buccal side of 48 extracted, sound, human premolars. The specimens were randomly divided in two groups: A) Silorane System ® /Filtek Silorane ® ; B) Scotchbond Universal ® /Filtek Supreme ® . Each group was divided in two subgroups. A1) and B1): no preetching was performed. A2) and B2): selective, enamel pre-etching was performed. The interfacial sealing ability of the materials was evaluated by scoring the depth of methylene blue penetration through optical microscope observations. The differences in infiltration scores recorded for the tested materials were evaluated for statistical significance (Kruskal-Wallis ANOVA, Mann-Whitney U test, p < 0.05).Results. No groups showed a "0" score, and group B2 had the lowest individual score, reaching at least a "2" score.In the silorane groups, pre-etching decreased the infiltration score but the result was not statistically significant. No statistically significant differences emerged among the tested materials except for the Bis-GMA composite restored group where the pre-etching significantly reduced the interfacial leakage (p < 0.05).Conclusions. Selective enamel pre-etching significantly reduced the marginal infiltration in class V cavities, restored with Bis-GMA composite and a self-etching adhesive system. The low-shrinking silorane composite achieved better sealing ability (Dent. Med. Probl. 2016, 53, 3, 365-372).

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Marginal quality and microleakage of adhesive class V restorations

Cited by 93 publications

References 25 publications

Marginal adaptation of ceramic and composite inlays in minimally invasive mod cavities

Marginal adaptation of ceramic and composite inlays in minimally invasive mod cavities

Effect of Pulp Pressure on the Micropermeability and Sealing Ability of Etch & Rinse and Self-etching Adhesives

Effects of Pre-Etching in Class V Cavities Restored with Silorane and Methacrylate-Based Composites

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