Marginal bone loss and associated factors in immediate dental implants: a retrospective clinical study

doi:10.1186/s40729-025-00602-0

★ Alto impactoQ1 · DentistryImpact Factor · 4.405

AutoresFederico Rehberger Bescós, Angel-Orión Salgado-Peralvo, Cintia M. Chamorro Petronacci, Dumitru Chele, et al.

Por qué importa

Este estudio retrospectivo, publicado en el International Journal of Implant Dentistry, evalúa la pérdida ósea marginal (MBL) en implantes dentales inmediatos (IDIs) hasta 36 meses postoperatorios. Se analizaron 1.040 implantes en 344 pacientes, observando una tasa de oseointegración del 98.9%. La MBL promedio varió a lo largo del tiempo, estabilizándose aproximadamente a los 8.5 meses. Se identificó menor pérdida ósea en implantes mandibulares inmediatos y también post-carga, siendo esta última influenciada positivamente por la altura y tipo de abutment. La conclusión principal subraya la eficacia del protocolo de colocación de IDIs, recomendando situar los implantes a nivel óseo ligeramente por debajo de la cresta para optimizar la plataforma durante la fase de remodelación ósea inicial. Estos hallazgos son relevantes para la planificación y manejo de implantes inmediatos, buscando minimizar la pérdida ósea y asegurar la longevidad protésica.

Abstract original

PURPOSE: The aim of this study was to evaluate the marginal bone loss (MBL) over a follow-up period of up to 36 months in Immediate dental implants (IDIs), as well as the impact of various clinical variables on the MBL. METHODS: IDIs placed in two surgical phases were evaluated. Implants were classified into bone loss (BL, exposed threads), bone remodeling (BR, crestal bone at the implant margin ± 0.1 mm), and bone overlapping (BO, bone above the abutment). RESULTS: A total of 1,040 IDIs were inserted in 344 patients with a successful osseointegration rate of 98.9%. The average MBL at 2, 6, 12, 24, and 36 months was - 0.3 ± - 1.0 mm, - 1.1 ± -1.8 mm, - 1.4 ± - 1.8 mm, - 1.7 ± - 1.9 mm, and - 1.3 ± - 2.3 mm, respectively. In the Baseline-12-month period, 17.5% of the IDIs presented BL, 9% BR, and 73.5% BO. For the B1-12 month period, 19.8% presented BL, 10.7% BR, and 69.5% BO. Mixed regression models showed significant MBL overtime pre-loading (p < 0.0001), stabilizing at 8.5 months from implantation. Immediate mandibular implants had lower MBL (p = 0.0365). Post-loading, MBL was lower in the mandible (p = 0.0095) and positively influenced by abutment height and rotational abutments. CONCLUSIONS: The present study supports the clinical efficacy of the IDIs placement protocol with high survival rates and acceptable MBL. It is recommended to place bone level implants slightly below the crest to ensure the platform remains at an optimal depth during the initial bone remodeling phase post-implantation.

Leer texto completo ↗DOI · 10.1186/s40729-025-00602-0

Autor Doctor&Cols

Orion Salgado
Rehabilitación Oral y Estética Dental

Cómo citar

Bescós FR, Salgado-Peralvo A, Petronacci CMC, Chele D, al. E. Marginal bone loss and associated factors in immediate dental implants: a retrospective clinical study. International Journal of Implant Dentistry. 2025. doi:10.1186/s40729-025-00602-0