Study on the histopathological modifications of the dental pulp in occlusal trauma.

The diagnosis of occlusion-generated disorders of the dento-maxillary apparatus represents a sensitive stage within the establishment of the therapeutic means for the functional rehabilitation of dental arches. The laborious effort carried out in order to specify the diagnosis resides in the fact that any trauma arising at the level of any component of the stomatognate system may lead to an occlusal dysfunction. The uncured carious processes, besides the pulp and periapical complications, may lead to an occlusal dysfunction through horizontal migrations of teeth resulting in the derangement of the occlusal curvatures as well as through vertical migrations of the teeth opposing a tooth diagnosed with occlusal caries or which largely reduced the coronary height. The dental iatrogenia, besides the eructation anomalies and neuromuscular dysfunction within the oromaxillofacial area also determines the appearance of occlusal dysfunction. The radiological examination through correlation with the clinical manifestations may provide significant data related to the magnitude of the prejudice caused to dento-paradontal units experiencing occlusal trauma. The histopathological study through correlation with the clinical manifestations provides significant data on the tolerance of dento-paradontal units within the occlusal dysfunction. Also, subsequent to the analysis of the possible actions of aggression generated by the occlusal trauma correlations could be determined between the type of the histological lesion of the pulp-dentine complex and the etiopathogenic factors, as well as correlations depending on the damage degree through occlusal trauma of the dental parts involved.