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      Apicogénesis en canino permanente joven con resorción intracoronal pre eruptiva: reporte de caso Translated title: Apexogenesis in young permanent canine with pre-eruptive intracoronal resortion: case report

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          Abstract

          Los dientes permanentes presentan desarrollo y formación radicular incompleta al momento de su erupción, el tejido pulpar es el encargado de culminar el proceso de formación radicular por intermedio de los odontoblastos que producen dentina, si la misma se ve afectada por traumatismo, lesión cariosa, resorción intracoronal pre eruptiva (PEIR por sus siglas en inglés) y/o fractura, se altera la vitalidad e incluso puede llegar a producirse necrosis pulpar, lo que ocasionará una interrupción de la formación radicular normal. Para el tratamiento de dientes permanentes jóvenes e inmaduros que han sufrido algún tipo de lesión, pero que aún mantienen la vitalidad pulpar, el procedimiento de apicogénesis con agregado de trióxido mineral (MTA) puede ser considerado como una opción viable, debido a la biocompatibilidad y capacidad de inducir la formación de tejidos duros. En el presente reporte de caso se presenta una pieza dental con antecedente de PEIR, tratada mediante apicogénesis con MTA, lográndose resultados favorables en cuanto al engrosamiento de paredes dentinales, desarrollo radicular y mantenimiento de la vitalidad pulpar.

          Translated abstract

          The permanent teeth have an incomplete development and root formation at the time of its eruption, the pulp tissue is responsible for completing the process of root formation by means of odontoblasts that produce dentin, if it is affected by trauma, carious lesion, Pre-eruptive intracoronal resorption (PEIR) and / or fracture, pulp vitality is altered and pulp necrosis may even occur, which will cause an interruption of the normal radicular formation. For the treatment of immature permanent teeth that have suffered some type of injury, but still maintain pulp vitality, the procedure of apexogenesis with added mineral trioxide (MTA) can be considered as a viable option, due to the biocompatibility and capacity of induce the formation of hard tissues. In this case report we present a tooth with a history of PEIR, treated by apexogenesis with MTA, achieving favorable results in terms of thickening of dentinal walls, root development and maintenance of pulpal vitality.

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          Most cited references35

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          Clinical applications of mineral trioxide aggregate.

          An experimental material, mineral trioxide aggregate (MTA), has recently been investigated as a potential alternative restorative material to the presently used materials in endodontics. Several in vitro and in vivo studies have shown that MTA prevents microleakage, is biocompatible, and promotes regeneration of the original tissues when it is placed in contact with the dental pulp or periradicular tissues. This article describes the clinical procedures for application of MTA in capping of pulps with reversible pulpitis, apexification, repair of root perforations nonsurgically and surgically, as well as its use as a root-end filling material.
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            Apexification: a review.

            This paper reviews the rationale and techniques for treatment of the non-vital immature tooth. The importance of careful case assessment and accurate pulpal diagnosis in the treatment of immature teeth with pulpal injury cannot be overemphasized. The treatment of choice for necrotic teeth is apexification, which is induction of apical closure to produce more favorable conditions for conventional root canal filling. The most commonly advocated medicament is calcium hydroxide, although recently considerable interest has been expressed in the use of mineral trioxide aggregate. Introduction of techniques for one-visit apexification provide an alternative treatment option in these cases. Success rates for calcium hydroxide apexification are high although risks such as reinfection and tooth fracture exist. Prospective clinical trials comparing this and one-visit apexification techniques are required.
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              Reaction of rat connective tissue to implanted dentin tubes filled with mineral trioxide aggregate or calcium hydroxide.

              This study was conducted to observe the rat subcutaneous connective tissue reaction to the implanted dentin tubes filled with calcium hydroxide or mineral trioxide aggregate. The animals were sacrificed after 7 and 30 days, and the specimens were prepared for morphological study. Some undecalcified specimens were prepared for histological analysis with polarized light and Von Kossa technique for calcium. The results were similar for both studied materials. At the tube openings, there were Von Kossa-positive granules that were birefringent to polarized light. Next to these granulations, there was an irregular tissue like a bridge that was Von Kossa-positive. The dentin walls of the tubes exhibited in the tubules a structure highly birefringent to polarized light, usually like a layer and at different depths. It is possible that the mechanism of action of both materials has some similarity.
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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                reh
                Revista Estomatológica Herediana
                Rev. Estomatol. Herediana
                Universidad Peruana Cayetano Heredia. Facultad de Estomatología (Lima, , Peru )
                1019-4355
                January 2019
                : 29
                : 1
                : 80-88
                Affiliations
                [06] Lima orgnameUniversidad Peruana Cayetano Heredia orgdiv1Facultad de Estomatología orgdiv2Servicio de Endodoncia Perú
                [01] Lima orgnameUniversidad Peruana Cayetano Heredia orgdiv1Facultad de Estomatología orgdiv2Programa de Segunda Especialidad Endodoncia Perú
                [03] orgnameUniversidad Peruana Cayetano Heredia orgdiv1Facultad de Estomatología orgdiv2Programa de Segunda Especialidad Odontopediatría
                [07] Lima orgnameUniversidad Nacional Federico Villarreal orgdiv1Facultad de Odontología Perú
                [02] Cuenca orgnameUniversidad de Cuenca orgdiv1Facultad de Odontología Ecuador
                [05] Puno orgnameUniversidad Nacional del Altiplano orgdiv1Escuela Profesional de Odontología Perú
                [04] Ambato orgnameUniversidad Regional Autónoma de los Andes orgdiv1Carrera de Odontología Ecuador
                Article
                S1019-43552019000100009
                10.20453/reh.v29i1.3497
                8dd7b399-52d8-4a07-81c8-22519b1c1bf9

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

                History
                : 13 August 2018
                : 16 December 2018
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 43, Pages: 9
                Product

                SciELO Peru

                Categories
                Reporte de casos

                pulpotomy,calcium hydroxide,MTA,immature root apex,Apicogénesis,ápice radicular inmaduro,cierre apical,pulpotomía,hidróxido de calcio,Apexogenesis,apical closure

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