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B Lüscher

Publications and source records attributed to B Lüscher.

95 records · Page 6Linked to original sources
PubMed1977

[Adpatation and marginal fit of thixotropic composites and syringe system composites. In vitro findings].

In a dye penetration test and a scanning electron microscopic evaluation MOD-restorations made of a thixotropic material (ZKP-A-5(2)) and of two syringe system composites (Concise-Capsule-Composite3, Compocap-S4) were investigated with respect to microleakage and marginal adaptation. These materials did not reveal better marginal micromorphology than a comparable two-paste composite system (Concise3); Compocap-S showed markedly less microleakage. The quality of marginal adaptation, however, was improved to 52% when a low viscosity sealant (ZKP-A-2(2), Concise Enamel Bond3) was applied before insertion of the restorative. A sealant pretreatment is therefore compulsory in thixotropic and syringe packed composites as well. The perfection reached with these composite brands is equal to that of adhesive restorations made of Concise or Adaptic5 [6,7]. Restorations performed with new, complete composite systems (Nimetic6, GC's Epolite 100/Epobond7) revealed moderate results when compared to standard materials like Concise or Adaptic [6,7].

Composite Resins↗
PubMed1977

[In vitro evaluation of the adaptation and quality of the margins in various composite systems].

Microleakage and marginal adaptation of different composite brands (Epoxydent, Restodent, Cosmic) in conventional and adhesive MOD-cavities have been investigated in an in vitro dye-penetration and scanning electron microscope study. The results were compared to those of a standard composite brand (Adaptic). Unrelated to the type of cavity and enamel etching procedures Epoxydent and Restodent revealed moderate results only. When the use of a sealant was omitted prior to bulk placement Cosmic showed the best adaptation. Priming (Cosmic Bond) was found to impede microleakage but not to influence marginal adaptation. The superiority of the adhesive restorations that had been performed with the Adaptic and the Concise system [4] is a result of the combination of these composite materials with a sealant and the new cavity design.

Composite Resins↗
PubMed1976

[The development of the perfectly adapted MOD composite filling material with tight marginal fitting in vitro findings].

Class II Adhesive Restorations have been realized with composites under laboratory conditions. They show a perfect marginal adaptation and no microleakage at the tooth/restoration interface. These properties were obtained a) with a new cavity preparation, b) by application of a low viscosity sealant prior to the placement of the bulk of the composite material. The Adhesive Restoration compared favorably with conventionally prepared restorations. Nevertheless, enamel conditioning with acid and the use of a low viscosity sealant in conventionally prepared class II cavities resulted also in some improvement of marginal adaptation.

Acid Etching, Dental↗
PubMed1975

Coronally repositioned periodontal flap. Clinical evaluation after one year.

After increasing the width of the attached gingiva by free palatal mucosa transplants, 20 procedures with coronal flap repositioning were performed on 41 teeth with gingival recessions in 13 young adults. The amount of gingival recession and the clinical gingival sulcus depth were measured pre-operatively and 1, 6 and 12 months after surgery; the amount of osseous dehiscence was measured during surgery. No significant differences were found among reduction values of gingival recession by reattachment 1, 6 and 12 months post-operatively. Although a significant correlation was found between the degree of gingival recession preoperatively and 1 month post-operatively, non was found between the amount of alveolar bone dehiscence and gingival recession 1 month post-operatively.

Adult↗