Influence of Removing or Leaving the Prosthesis after Regenerative Surgery in Peri-Implant Defects: Retrospective Study: 32 Clinical Cases with 2 to 8 Years of Follow-Up

doi:10.3390/ijerph18020645

★ Alto impactoQ1 · PsychologyImpact Factor · 3.251

AutoresVíctor Astolfi, Alberto Gómez-Menchero, José Vicente Ríos-Santos, Pedro Bullón

Por qué importa

Este estudio retrospectivo evalúa el impacto de retirar o mantener la prótesis dental tras cirugía regenerativa en defectos periimplantarios, un aspecto relevante para la práctica clínica en implantología. Se compararon dos grupos de pacientes con 32 implantes en total, analizando el relleno óseo radiográfico a largo plazo (2-8 años) mediante el uso de Bio-Oss® y una membrana de colágeno reabsorbible. Aunque se observaron ligeras diferencias en el promedio de ganancia ósea entre los grupos (2,84 mm con prótesis mantenida vs. 2,18 mm con prótesis retirada), el análisis estadístico no encontró diferencias significativas que demostraran una superioridad de una u otra opción. Los resultados sugieren que la técnica regenerativa empleada, incluyendo la limpieza de la superficie del implante con peróxido de hidrógeno, es fiable para obtener resultados a medio plazo, independientemente de la decisión sobre la prótesis.

Abstract original

Purpose: The aim of this retrospective study was to compare the influence of removing or not removing a prosthesis after regenerative surgery on peri-implant defects. Methods: Two different groups were compared (Group 1: removing the prosthesis; Group 2: maintaining the prosthesis), analyzing radiographic bone filling (n = 32 implants) after regenerative treatment in periapical radiographs. The peri-implant defects were measured before and after regenerative treatment using Bio-Oss® (Geistlich Pharma, Wohhusen, Switzerland) and a reabsorbable collagen membrane (Jason®, Botis, Berlin, Germany), the healing period was two years after peri-implant regenerative surgery. Statistical analysis was performed, and a Chi square test was carried out. To determine the groups that made the difference, corrected standardized Haberman residuals were used, and previously a normality test had been applied; therefore, an ANOVA or Mann–Whitney U test was used for the crossover with the non-normal variables in Group 1 and Group 2. Results: The results obtained suggest that a regenerative procedure with xenograft, resorbable membrane, and detoxifying the implant surface with hydrogen peroxide form a reliable technique to achieve medium-term results, obtaining an average bone gain at a radiographic level of 2.84 mm (±1.78 mm) in patients whose prosthesis was not removed after peri-implant bone regenerative therapy and 2.18 mm (±1.41 mm) in patients whose prosthesis was removed during the healing period. Conclusions: There are no statistically significant differences in the response to treatment when removing or keeping the prosthesis after regenerative surgery in peri-implant defects.

Leer texto completo ↗DOI · 10.3390/ijerph18020645

Autor Doctor&Cols

Alberto Gómez Menchero
Cirugía Oral e Implantología

Cómo citar

Astolfi V, Gómez-Menchero A, Ríos-Santos JV, Bullón P. Influence of Removing or Leaving the Prosthesis after Regenerative Surgery in Peri-Implant Defects: Retrospective Study: 32 Clinical Cases with 2 to 8 Years of Follow-Up. International Journal of Environmental Research and Public Health (IJERPH). 2021. doi:10.3390/ijerph18020645