A new method for finishing minicavities.
Minicavities were prepared in 26 caries-free teeth. Cavity preparation and the finishing of the occlusal area and the gingival floor was done with diamond burs (diameter 1 mm, grain sizes 90 micron and 15 micron, respectively). For the finishing of the axial box margin and the proximo-cervical curved border, a new set was developed: It is composed of an EVA-system with the total amplitude reduced to 0.34 mm, and a highly flexible file (Cavishape, grain 15 micron). The shape of this file had to be modified in order to follow the proximo-cervical curvature. The efficiency of the new device was compared with the axial margin trimmer by means of scanning electron microscopy and a score system. The new device allowed a significantly better finishing of the proximo-cervical curvature and of the axial box margin.
Lussi
A
A
Department of Operative Dentistry, School of Dentistry, University of Berne, Switzerland.
Gygax
M
M
Hotz
P
P
Lüthi
D
D
D003731:Dental Caries / Q000628:therapy*; D003793:Dental Restoration, Permanent / Q000295:instrumentation / Q000379:methods*; D006801:Humans; D008855:Microscopy, Electron, Scanning