Changes of Alveolar Bone Density Around the Abutment Teeth in Patients Wearing Removable Partial Dentures Depending on Kennedy ClassificationReportar como inadecuado




Changes of Alveolar Bone Density Around the Abutment Teeth in Patients Wearing Removable Partial Dentures Depending on Kennedy Classification - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Collegium antropologicum, Vol.33 No.4 December 2009. -

The aim was to study the influence of Kennedy classification on alveolar bone density changes around the abutment teeth of removable partial denture RPD clasp and rests. A total of 50 examinees of both gender wearing RPDs were included in the study. Changes of bone density around the abutment teeth were determined by an intraoral microdensitometry method. Standard retroalveolar radiographs were obtained twice: the first one at the RPD delivery and the second one after a period of 3 month of denture wearing. The copper stepwedge consisting of 5 steps 0.1–0.1 mm was attached to the radiograph prior to exposure in order to calibrate it. Seven regions of interest ROI in different position close to the root of the abutment tooth were selected on each radiograph, all 10 pixels in size. Grey levels of each ROI were measured and were converted into equivalents of the copper stepwedge thickness using the third degree polynomial in order to compare the difference of bone density between the two radiographs. The results indicated that Kennedy classification had no significant influence on the change of bone density in RPD patients during first 3 month of RPD wearing ANOVA: p>0.05.

alveolar bone; intraoral microdensitometry; retroalveolar radiography; removable partial denture; Kennedy classification



Autor: Daniela Kovačević Pavičić - ; Department of Prosthodontics, School of Dental Medicine, University of Rijeka, Rijeka, Croatia

Fuente: http://hrcak.srce.hr/



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