Marginal Bone Loss in Internal Conical Connection Implants Placed at the Crestal and Subcrestal Levels before Prosthetic Loading: A Randomized Clinical Study
AutoresNatalia Palacios-Garzón, Elisabeth Mauri-Obradors, Raúl Ayuso‐Montero, Eugenio Velasco‐Ortega, José María Anglada-Cantarell, José López‐López
Por qué importa
Este estudio evalúa la pérdida ósea marginal en implantes de conexión interna cónica colocados en posición crestal (C) y subcrestal (S) antes de la carga protésica. Se analizaron los datos radiológicos de 62 implantes en 27 pacientes durante cuatro meses, midiendo también la estabilidad mediante análisis de frecuencia de resonancia (RFA). Los resultados no mostraron diferencias significativas en la pérdida ósea entre ambas posiciones ni en la estabilidad del implante a lo largo del tiempo. La tasa de éxito general fue del 97.8%. Estos hallazgos sugieren que la posición de colocación del implante, dentro de los niveles evaluados, no compromete la estabilidad ni la pérdida ósea inicial, un dato relevante para la planificación quirúrgica y el pronóstico a largo plazo en la práctica clínica diaria.
The vertical position concerning the bone in which the implants are placed has been related as one of the factors causing marginal bone loss. The objective of this study was to evaluate the bone loss that occurs before prosthetic loading around tapered internal connection (CIC) implants placed at the crestal (C) and subcrestal (S) levels. Method: A randomized clinical trial (RCT) was carried out, with a sample size of 62 implants placed in 27 patients who underwent radiological controls on the day of placement, at one month, and at 4 months, and stability was measured by resonance frequency analysis (RFA) on three occasions. Results: Bone loss in implants C and S from the time of placement (T0) and the month after (T1) was not significant (p = 0.54) (C = 0.19 mm and S = 0.15 mm). The difference between one month (T1) and four months (T2) (C = 0.17 mm and S = 0.22 mm) was not significant either (p = 0.26). The difference between the day of placement (T0) and the third and last measurement (T2) was almost null (p = 0.94) (C = 0.35 mm and S = 0.36). The overall success rate of the implants was 97.8%. The stability of the implants measured with RFA went from 70.60 (T0) to 73.16 (T1) and 74.52 (T2). Conclusions: No significant differences were found in the bone loss for implants placed at the C and S levels. The millimeters of bone loss detected in both vertical positions did not have a significant impact on the stability of the implants.
Palacios-Garzón N, Mauri-Obradors E, Ayuso‐Montero R, Velasco‐Ortega E, Anglada-Cantarell JM, López‐López J. Marginal Bone Loss in Internal Conical Connection Implants Placed at the Crestal and Subcrestal Levels before Prosthetic Loading: A Randomized Clinical Study. Materials. 2022. doi:10.3390/ma15103729
