摘要:
Disclosed is a method of forming a uniform coating onto a tooth surface, which method includes: forming droplets by spraying an orally acceptable coating material through a spray nozzle, wherein the droplets have a volume-averaged droplet size of about 1 µm to about 100 µm, wherein a spray including the droplets travels from a tip of the spray nozzle towards the tooth surface at a spray rate of less than about 10 milliliters/minute and wherein the droplets include a film-forming polymer, a therapeutic agent and/or a cosmetic agent; and depositing the droplets onto the tooth surface to thereby form a uniform coating.
摘要:
A unit dose package for a dental composition, comprising: (a) a rigid support member having a proximal end and a distal end, the rigid support member supporting one or more storage compartments for the dental composition and providing fluid flow communication between the one or more storage compartments and one or more discharge orifices, wherein the one or more storage compartments each have a volume of 10 pi to 1000 pi, and (b) a discharge conduit having a longitudinal axis extending from a proximal end to a distal end, the discharge conduit being rotatably attached to the distal end of the rigid support member for rotation around its longitudinal axis, wherein the attachment of the discharge conduit (b) and the rigid support member (a) is provided by two-component injection molding; whereby fluid flow communication between the discharge conduit and the one or more storage compartments may be established by rotating the discharge conduit around its longitudinal axis relative to the rigid support member from a first position to a second position and whereby the fluid flow communication between the discharge conduit and the one or more storage compartments may be interrupted by rotating the discharge conduit around its longitudinal axis relative to the rigid support member from the second position to the first position, wherein the one or more storage compartments are provided by flexible films made of composite material films, which are attached to the rigid support member.
摘要:
Instrument (1) comprenant un ensemble corps (2), à ou à partir d'une extrémité duquel s'étend une ligne finale (101) dont une extrémité (99) est destinée à être appliquée à la zone à traiter et présente des moyens de liaison étanche à la zone à traiter, une première ligne d'aspiration (56), reliée à une source de vide, une deuxième ligne d'amenée de produit de nettoyage, et des moyens de sélection (36) aptes à mettre la ligne finale (101) en communication avec la première ligne (56) ou la deuxième ligne. L'instrument (1) peut comprendre une troisième ligne (58), d'amenée de produit de protection, et les moyens de sélection (36) sont également aptes à mettre la ligne finale (101) en communication avec la troisième ligne (58).
摘要:
Die Erfindung betrifft eine Verwendung einer Messvorrichtung für Zahnkavitäten (21) zum Ermitteln einer Schichtdicke in einer Zahnkavität (21). Die Messvorrichtung umfasst eine Sonde (14) zum Einführen in die Zahnkavität (21). Die Sonde (14) weist eine auf ein distales Ende (15) der Sonde (14) bezogene Abstandsmarkierung (191, 192, 193, 194) auf. Erfindungsgemäß ist die Sonde (14) als Hohlnadel ausgebildet.
摘要:
A cartridge for delivery of a material therefrom which has a corrugated portion to allow for bending/extending to be applied to the device from which a material to be deposited can be dispensed. The bendability and extendibility allow for greater efficiency in use and application of the material into cavities, pockets, and/or crevices where one needs to deposit the material.
摘要:
A syringe for injecting solid, hard and rough granular material, having diameters comprised between 0.1 and 1.5 mm, comprising: a longitudinal injection chamber (10) having constant section and an internal diameter (Dc) of less than 4.5 mm, having a distal outlet mouth (1 1 ) for the flow out of the material, whose surface is the same as the injection chamber (10), and a proximal mouth (12), in which granular material is inserted; a plunger (20) sealedly mobile along the injection chamber (10), joined to a stem (21 ) which enters the injection chamber (10) through the proximal mouth, the plunger (20) having a transversal section which sealingly couples with the surface of the injection chamber (10), and having an operative surface (22), facing towards the distal mouth (1 1 ) of the injection chamber (10), suitable for pushing the material along the injection chamber (10), characterised in that it comprises a body (24) projecting longitudinally internally of the injection chamber (10), fixed substantially axially to the operating surface (22) of the plunger (20), having a diameter (Ds) that is less than 70% of the diameter (Dc) of the injection chamber (10) and a length (Ls) that is greater than 6 mm.
摘要:
A plunger for advancing a substance in a syringe toward a dispensing nozzle. The plunger has a plunger rod and a seal and being formed of a plastic composition. The plastic composition comprises a polymer and a filler which is non-uniformly distributed within the polymer to provide the plunger rod and the seal with different mechanical properties depending on the filler content in the portions of the plastic composition plunger forming the rod and the seal. The invention preferably provides a dental syringe which can be conveniently used, and further helps minimizing costs in the manufacturing of the dental syringe