Coronas de acero recubiertas de material acrílico, plástico o porcelana. Coronas acero cromo con fenestración. Preparación. mm subgingival. Sin escalon. anteriores con coronas de acero cromo con frente estético con ventajas que otras técnicas Desde entonces libros especializados en el área odontopediatria. : Tratado de Odontopediatría 2 vol. 13 Sellantes de fosas y fisuras Capítulo 14 Coronas de acero cromado Capítulo 15 Protección pulpar directa.

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Hybrid nano-resin esthetic cotonas in primary teeth. Within the field of dentistry, loss of primary teeth due to caries, pulp conditions and crown fractures has been recognized as one of the most severe etiological factors of dental problems in the pediatric dentistry field.

One of the greatest headways in dentistry in the last years encompasses the adhesion to enamel of primary teeth, this odontoepdiatria led to the development of many techniques to restore the tooth. Obstacles that might be encountered are the presence of an aprismatic layer on the surface of primary teeth.

coronas acero cromo odontopediatria pdf

Nevertheless, dentists might overcome these factors and manufacture esthetically-pleasing restorations. Crowns manufactured with composite resins and used cromoo indirect techniques in odontopediateia laboratory optimize physical and chemical characteristics and in general, polymerize with the use of physical means light, heat, pressure, etc. Therefore, they present smooth, pore-free surfaces, which allow for suitable esthetics, greater resistance to abrasion and proper adaptation.

The aim of the present work was to present a clinical case of rehabilitation with indirect composite resin restoration Signum-ceramis-Heraeus and to show a technique for the rehabilitation of primary, upper anterior teeth which did not entail placement of provisional teeth. Rehabilitation of primary temporary teeth with nano-resin-hybrid crowns prefabricated in the coronass represents a suitable option in the field of pediatric dentistry.

Esthetic crowns, primary anterior teeth, nano-resin. Loss of primary anterior teeth due to caries, pulp disease and crown fractures has been recognized as one of odontopediqtria most severe etiological factors of dental problems in the field of pediatric dentistry. Trying to odontopdeiatria primary incisors is important not only to achieve proper chewing and phonation; abnormal habits can develop, furthermore, aesthetics would be another factor to consider.

Suitable esthetics is the most difficult goal to achieve. Pediatric dentists have sought different rehabilitation and prevention alternatives for primary anterior teeth. Due to the extensive caries frequently presented odontopedoatria children, treatments have mostly consisted on extractions and pulpectomies, and use of amalgam or chrome-steel crowns.


Among others, materials used to restore primary anterior teeth are: Chrome-steel crowns provide better resistance and durability but are inconveniently un-esthetic. Resin restorations comply with esthetic requirements, nevertheless they exhibit secondary effects such as polymerization contraction which can cause an acerk at the adhesive union, postoperative pain, marginal discoloration, recurrent caries, and, finally, loss of the restoration. Crowns made of light-heat-cured composite resins offer suitable adaptation: The prismless layer can become a problem to achieve suitable adhesion; for this reason many authors suggest it should be eliminated.

Composite resins used in the laboratory for indirect techniques optimize physical and chemical characteristics and generally polymerize through the use of coronss methods light, heat, pressure, etc.

The aim of the present study was to present a clinical case where rehabilitation of indirect composite resins was performed Signum-ceramis-Heraeus. An apparently healthy 3 year ten month old female patient attended the Pediatric Dentistry Clinic.

Clinical examination revealed caries in teeth 51 and 61, previously restored with resin and with frequent dislodgement history. Frankel IV conduct with normal occlusion Figure 1.

During the first visit, impressions were taken with irreversible hydrocolloid; and over the model teeth were carved with a L bur, 1 mm were eroded at all sides, rounded borders without retention and shaping a cervical chamfer. The model was then sent to the laboratory in order to manufacture crowns, with shape and color specifications Figures 2 and 3.

Restorations were adjusted, the tooth surface was etched for 15 seconds, and an adhesive layer was applied, polymerization odontopddiatria promoted odontopediatfia 10 seconds, and finally teeth were cemented with dual resin Figure 4.

Restorations had previously been treated with hydrofluoric acid and silane application Figure 5. Upper anterior restorations were completed preserving function and exhibiting high aesthetic value Figure 6. There are different treatment methods to restore the anterior sector of primary dentition, but not all of them meet the expectations of the pediatric dentist. One of the most used treatments is the use of chrome-steel crowns. They meet functionality requirements but are unaesthetic.

Dra. Ania Rodríguez Arrona, Dentista Especialista en niños en Matamoros, Tam.

Pre-formed metallic crowns with esthetic front are another option to restore the anterior sector; nevertheless, they have shown to wear down, or experience fractures odonyopediatria the aesthetic front, this is due to the fact that masticatory forces are higher than what these crowns can endure. Polycarbonate crowns are esthetically acceptable, but involve the disadvantage of eliciting poor gingival adaptation, this might lead to gingivitis caused by accumulation of dental plaque, teeth are worn down and pigmented.


Another treatment option would be direct resin crowns as well as celluloid crowns. This technique meets with aesthetic requirements but does not meet functionality requirements since these crowns frequently are dislodged or fractured.

CORONAS EN by veronica barbosa on Prezi

Heat and light cured composite resins crowns exhibit suitable adaptation, homogenous surface coronae absence ofpores, these characteristics confer proper aesthetics and higher resistance to abrasion. In the present case, crowns were decided upon since the patient had a history of resin restorations dislodgement, taking thus advantage of the adhesion to all the dental structure.

Heat-and odojtopediatria composite resins were the selected restorative materials, since they met with durability and resistance criteria as well as aesthetics, which was of the utmost importance bearing in mind they were front teeth. Even though cementing time was increased, no complications were encountered with the patient, whose behavior was very helpful. Rehabilitation of primary teeth with laboratory prefabricated nano-hybrid-resin represents a suitable option in pediatric dentistry.

Coronas de Venner de acero con resina fotocurable. Biologic restoration of primary anterior teeth: J Indian Soc Pedo Dent. Restoration of a fractured primary incisor. Assessment of polymerization contraction stress of three composite resins. A technique for restoring class V caries in primary canines. Structural variations in the surface zone of human tooth enamel observed by scanning electron microscopy.

Chair side veneering of composite resin to anterior stainless steel crowns: Clinical evaluation of parental satisfaction with resin-faced stainless steel crowns. Polyeethylene fiber tape used as post and core in decayed primary anterior teeth: Restoration of severely decayed primary incisors using indirect composite resin restoration technique.

Veneer retention of preveneered primary stainless steel crowns after crimping. Reconstruction and recovery of hemisectioned teeth using odontopefiatria fiber-reinforced composite resin: Microleakage and polymerization shrinkage of various polymer restorative materials.

Francischone LA, Consolaro A. Morphology of the cemento enamel junction of primary teeth. Comparison of retention and demineralization inhibition potential of adhesive banding cements in primary teeth. Amalia Rojas Reynoso E-mail: This article can be read in its full version in the following page: METHOD During the first visit, coronss were adero with irreversible hydrocolloid; and over the model teeth were carved with a L bur, 1 mm were eroded at all sides, rounded borders without retention and shaping a cervical chamfer.