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RCOE
versión impresa ISSN 1138-123X
Resumen
ARTEAGOITIA-CALVO, Mª Iciar; SABRAS-PURAS, Fernando; SAN MARTIN-MARTINEZ, J. Antonio y GIL-LOZANO, Jaime. Survival study of three systems of extracoronary attachments used in mixed prostheses. RCOE [online]. 2003, vol.8, n.3, pp.275-283. ISSN 1138-123X.
Introduction: The objective is to determine the clinical behaviour and survival of three systems of extra coronary attachments: Roach, MiniDalbo and MiniSG. Material and method: A retrospective study was performed on clinical histories of patients who had been treated with mixed prostheses using the attachments mentioned, at least 48 months prior to the study. Clinical aspects which might influence the survival were recorded: number of splinted abutment teeth, free-end situations, jaw involved and dentition type of opposing arch. The sample size included 163 attachments. Terminal event was attachmnt/teeth fracture or crown decementation. Results: Mean survival rate was 46 months (IC 95% 44.9-47.3). 24 complications appeared in 21 attachments. The attachment MiniSG presents the fewest complications 9% (IC 95% 0-18.12). Neither the Breslow Test nor Cox Regression showed significant values on contrasting the survival curves of the different variables studied, including attachment type. Conclusion: The attachment MiniSG presents better clinical behaviour than the Roach and the MiniDalbo, although the differences are not statistically significant.
Palabras clave : Mixed prosthesis; Attachment; Roach; Minidalbo; MiniSG; Survival.