Quantification of the configuration factor in class I and II cavities and simulated cervical erosions

The configuration factor of adhesive cavities is defined as the ratio of the restoration's bonded to unbonded (free) surfaces. Such a configuration factor was described, on ideal cavities, as having a potential value in predicting the behaviour of the restoration, because it is related to the r...

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Bibliographic Details
Authors: Macorra García, José Carlos De La, Gómez Fernández, Susana
Format: article
Publication Date:1996
Country:España
Institution:Universidad Complutense de Madrid (UCM)
Repository:Docta Complutense
Language:Spanish
OAI Identifier:oai:docta.ucm.es:20.500.14352/60377
Online Access:https://hdl.handle.net/20.500.14352/60377
Access Level:Open access
Keyword:Dental cavity preparation
Configuration factor
Dental restoration
Permanent
Composite resins
Odontología estética
Materiales dentales
3213.13 Ortodoncia-Estomatología
Description
Summary:The configuration factor of adhesive cavities is defined as the ratio of the restoration's bonded to unbonded (free) surfaces. Such a configuration factor was described, on ideal cavities, as having a potential value in predicting the behaviour of the restoration, because it is related to the restoration's capacity for relieving stress by flow. The aim of this study was to measure the configuration factor value for real Class I and II cavities and simulates cervical erosions prepared in molars. Ten Class I, fice Class II cavities and seven cervical erosions were analysed using a computerised digitising system. The configuration factor values found were 4.03±0.33 for Clas I cavities, 1.85±0.59 for Class II cavities and 1.10±0.09 for simulates erosions (P<0.01).