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New finishing instruments for composite resins


, : New finishing instruments for composite resins. Journal of the American Dental Association 107(4): 575-580

The trimming of composite resin restorations encompasses gross finishing, contouring, fine finishing, and polishing. A series of aluminum oxide-coated flexible disks have been marketed and are suitable for that purpose. However, their use is confined to directly accessible convex surfaces. For precise finishing of small delineated areas, and for concave and occlusal surfaces, rigid rotary instruments are necessary. The currently used stones and tungsten carbide burs are ineffective with microfilled composite systems. Thus, a series of finishing burs coated with 40- and 15-microns diamond chips were evaluated because of the superior grinding effectiveness as compared with existing instruments. Surface roughness measurements, and qualitative and quantitative SEM evaluations, indicate that these fine and superfine diamond finishing burs produce surfaces on composite resins as smooth as tungsten carbide burs and stones. At the same time, they cause less surface and subsurface damage or marginal fractures on composite resin restorations. The three-year clinical experience is generally favorable. Further quantitative clinical studies are warranted.

US$29.90

PMID: 6579090


Other references

Kessler, R., 1974: The emergency room approach to urethral trauma. Western Journal of Medicine 121(3): 225-225

Ganguly, A.N.; Jacob, P., 1978: Catch of fish from inland water resources: problems of estimation in Indian condition. The paper deals with the problems of estimation of catch of fish from inland water resources in India. Various methods for obtaining data on fish catch, directly through actual catch and indirectly through consumption and market arrivals or sale,...

Ciocca, M.; Landoni, L.; Italia, C.; Montanaro, P.; Canesi, P.; Valdagni, R., 1991: Quality control in the conservative treatment of breast cancer: patient dosimetry using silicon detectors. Twenty patients with early breast cancer were treated with external irradiation, delivered with two tangential beams (6 MV X-rays) using a half-beam block (HBB) and 3-D compensating filters. All patients were immobilized with individualized cellul...

Dady, P.J.; Coombes, R.C.; Smith, I.E.; Parsons, C.A.; Ford, H.T.; Gazet, J.C.; Henk, J.M.; Nash, A.G.; Powles, T.J., 1980: Use of an antiosteolytic agent in treatment of patients with bone metastases from breast cancer. European Journal of Cancer Suppl 1: 131-135

Rolvien, T.; Koehne, T.; Kornak, U.; Lehmann, W.; Amling, M.; Schinke, T.; Oheim, R., 2016: A Novel ANO5 Mutation Causing Gnathodiaphyseal Dysplasia With High Bone Turnover Osteosclerosis. NlmCategory="UNASSIGNED">Gnathodiaphyseal dysplasia (GDD) is a rare skeletal syndrome that involves an osteopetrosis-like sclerosis of the long bones and fibrous dysplasia-like cemento-osseous lesions of the jawbone. Although the gene...

Negrobov O.P.; Fursov V.N., 1985: New data on the systematics of the genus rhaphium diptera dolichopodidae. A female Rhaphium dichromum and a presumed female R. sinense were described. Certain characters of sexual dimorphism were identified on the basis of comparison of some Rhaphium spp. Some new characters were proposed for introduction into the deter...

Mokra, V., 1962: Electron microscopic studies on the causal agent of virus necrosis in primula.. Further proof of the identity of the virus which causes necrosis in Primula obconica with tobacco necrosis.

Li, G-Li.; Liu, X-Chun.; Lin, H-Ran., 2005: Aromatase inhibitor letrozole induces sex inversion in the protogynous red spotted grouper (Epinephelus akaara).. The objective of this study was to investigate the effects of the aromatase inhibitor (AI) letrozole on gonadal development, serum steroids and aromatase activities in 2-year-old female red spotted grouper (Epinephelus akaara) during reproductive...

Backen, A.C.; Cummings, J.; Mitchell, C.; Jayson, G.; Ward, T.H.; Dive, C., 2009: 'Fit-for-purpose' validation of SearchLight multiplex ELISAs of angiogenesis for clinical trial use. Validated assays of circulating biomarkers of angiogenesis to predict and determine the efficacy of vascular-targeted anticancer drugs would facilitate successful drug development. Multiple biomarker candidates exist and a multiplex approach was s...

Lipkowitz, S., 2003: The role of the ubiquitination-proteasome pathway in breast cancer: ubiquitin mediated degradation of growth factor receptors in the pathogenesis and treatment of cancer. Aberrant activity of growth factor receptors has been implicated in the pathogenesis of a wide variety of malignancies. The negative regulation of signaling by growth factor receptors is mediated in large part by the ubiquitination, internalizatio...