Rubrik(en): Zahntechnik, Ästhetische Zahnheilkunde
Sprache(n): Englisch
Publikationsjahr: 2009
Video-Quelle: 60 Jahre Quintessenz
Content
Progress in materials and a minimally invasive
approach represent the guidelines of the present tendencies
for esthetic restorations. The choice of materials
on market nowadays is huge and generally these
materials can offer a good prognosis. Knowing the different
characteristics and the working protocols to
apply to each of them, can help orientate the clinician
to make the best choice according to each clinical case.
Compared to the past, composites allow better esthetics
thanks to their new composition, for example with
innovative characteristics such as having a refraction
index which is very similar to that of natural enamel. It
should be underlined that the possibility of obtaining
excellent esthetics is often with total conservation and
respect of the healthy tissue. Silica-based ceramics
always consent excellent esthetics while offering good
translucency; however they require a very strong adhesion
to the dental tissue which can be achieved following
a strict protocol as minor mechanical-physical characteristics
are present and often they are used with
non-retentive preparations. Polycrystalline ceramics
respond better to mechanical stimulation and are protaganist
of the major evolutions of the last years.
Through CAD CAM technology these materials are representing
a simplification of some protocols, a standardised
result of precision compared to convetional
procedures, guaranteeing however good esthetics. The
clinician can therefore find himself having to manage
different restorative approaches with metal free materials
according to the clinical indications, chewing and
esthetic needs.