One Abutment One Time: a multicenter, prospective, controlled, randomized study
Tello González, Gregorio
Lázaro Calvo, Pedro
Gil Mur, Javier
Ríos Carrasco, Blanca
Fernández Palacín, Ana
Herrero Climent, Mariano
|Department||Universidad de Sevilla. Departamento de Estomatología|
|Abstract||Aim: (PRIMARY) Assess the changes in bone level (6 and 12 months after implant placement) between the test (definitive abutment (DEF)) and control (healing abutment (HEA)) groups. (SECONDARY) Assess the changes in bone ...
Aim: (PRIMARY) Assess the changes in bone level (6 and 12 months after implant placement) between the test (definitive abutment (DEF)) and control (healing abutment (HEA)) groups. (SECONDARY) Assess the changes in bone level (6 and 12 months after implant placement) between the 1 mm high abutment group and 2 mm abutment group. Evaluate changes in implant stability recorded with analysis of the resonance frequency (RFA) Osstell system, at 6 and 12 months after implant placement, between the control group (HEA) and test (DEF). For the DEF group, the abutment was placed at the time of the surgery and was never removed. For the HEA group, the abutment was removed three times during the manufacture of the crowns. The abutments used were 1 mm high (Subgroup A) and 2 mm high (Subgroup B). Materials and methods: A total of 147 patients were selected between 54.82 ± 11.92 years old. After implant placement, patients were randomly distributed in the DEF and HEA group. After the implant placement, a periapical radiograph was taken to assess the peri-implant bone level; the same procedure was carried out 6 and 12 months post-placement. To compare the qualitative variables between the groups (HEA/DEF), the Chi-square test was used; for quantitative (MANOVA). Results: After a year, the accumulated bone loss was 0.48 ± 0.71 mm for the HEA group and 0.36 ± 0.79 mm for the DEF group, without statistical significance. Differences were only found due to timing (time) between 0 and 6 months (=0.001) and 0 and 12 months (0.001), with no differences attributable to the study groups (DEF and HEA). The accumulated bone loss (1 year) was 0.45 ± 0.78 mm for the 1 mm abutment group and 0.41 ± 0.70 mm for the 2 mm abutment group (p = 0.02). No differences were observed in implant stability between groups. Conclusions: The “One Abutment—One Time” concept does not reduce peri-implant bone loss compared to the connection–disconnection technique. The height of the abutment does influence bone loss: the higher the abutment, the lower the bone loss.
|Citation||Ríos-Santos, J.V., Tello González, G., Lázaro Calvo, P., Gil Mur, J., Ríos Carrasco, B., Fernández Palacín, A. y Herrero Climent, M. (2020). One Abutment One Time: a multicenter, prospective, controlled, randomized study. International Journal of Environmental Research and Public Health, 17 (24), 1-17.|
Except where otherwise noted, this item's license is described as: Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Showing items related by title, author, creator and subject.
Influence of implant design and under-preparation of the implant site on implant primary stability. An in vitro study Herrero Climent, Mariano; Ferreira Lemos, Bernardo; Herrero Climent, Federico; Falcao, C.; Oliveira, Helder; Herrera Martínez, Manuela; Gil, Francisco Javier; Ríos Carrasco, Blanca; Ríos-Santos, J.V. (2020-06-20)
The aim of this study was to evaluate the effects of different implant sites an under-preparation sequence associated with ...
Effect of the Acid-Etching on Grit-Blasted Dental Implants to Improve Osseointegration: Histomorphometric Analysis of the Bone-Implant Contact in the Rabbit Tibia Model Ríos Carrasco, Blanca; Lemos, Bernardo Ferreira; Herrero Climent, Mariano; Gil Mur, Javier; Ríos-Santos, J.V. (MDPI, 2021-11-22)
Previous studies have shown that the most reliable way to evaluate the success of an implant is by bone-to-implant contact ...
Design, processing and characterization of titanium with radial graded porosity for bone implants porosity for bone implants Torres Hernández, Yadir; Trueba Muñoz, Paloma; Pavón, J.J.; Chicardi Augusto, Ernesto; Kamm, Paul H.; García-Moreno, Francisco; Rodríguez-Ortiz, José Antonio (Elsevier, 2016-07)
Titanium cylinders with radial graded porosity, which are potentially suitable for biomedical applications (replacement ...