Implantes endodónticos - Vitalium vs. Titanio Caso clínico con un seguimiento de 18 años / Endodontic implants-Vitallium vs. Titanium Clinical case with 18 years follow-up

Resumen Una de las primeras consideraciones en la Odontología moderna, es preservar y mantener los dientes naturales, por lo que se han buscado técnicas alternativas que permiten conservar los órganos dentales en boca, el mayor tiempo posible. Por esta razón, se presenta un caso clínico donde se logra salvar dos piezas dentales anteriores, que poseían una movilidad grado tres, posterior a un tratamiento ortodóntico que le habían mantenido al paciente por más de dos años. Este caso, se resolvió exitosamente por medio de dos implantes endodónticos: uno de vitalium y otro de titanio, dándole un seguimiento de más de 18 años. A continuación, se expone una técnica de manejo y colocación de estabilizadores endodónticos, tomando en consideración indicaciones y contraindicaciones.

Abstract One of the first and main considerations in modern odontology, is to preserve and maintain natural teeth, reason why alternative techniques have been searched, to preserve dental organs in mouth, as long as possible. That is why this article presents a clinical case where two frontal dental pieces, that had mobility in grade three were saved, after an orthodontic treatment -maintained for more than two years- was removed. The case was successfully solved through two endodontic implants made from vitallium and titanium, with a follow-up for more than 18 years. The following is an exposition of the procedure of endodontic stabilizers, considering indications and contraindications.

Analysis Three-Dimensional Photoelastic Strese on The Endodnntic-Endosseous Implants / 昆明医科大学学报

The smooth-surface columnar,tepered and screw-shafed eddodontic endosseous stabilizers were separately placed into the maxillary central incisors'root canal and through apical foramen into alveolar bone.The stress distribution in the apical region and the region close to the tip of the implants in the alveolar bone of tooth models were studied by means of three-dimensional photoelastic technique.The screw-shafted implants were inserted into the mandibular canine and the influence of the implanting embedment depth lextruded out off the apical foramen 5mm,7mm(Omm) to the stress distribution were also studied.The results of the experimental investigation showed that the retentive function and the stress distribution of screw-shafted implants were better than that of others;the implanting depth should be se- lected within 5.8-8.6mm.