Evaluation of Direct and Indirect Partial Dental Coronal Restorations Within a Dental Practice-based Research Network and a Set of Hospital-university Odontology Services

The purpose of this study is to provide the latest information on the oral health status of patients, the lifetime of restorations, to quantify the incidence of defects rates on inserted restorations in conservative dentistry. Moreover, the study permits to compare needs of two different patient populations depending on the place of consultation (those consulting in hospital services and those consulting in private structures) and to compare the quality of coronary fillings in patients with of Gougerot Sjogren disease and those not affected.

A minimum sample of 840 adult subjects consecutively seen at the investigator's office over a period of 33 months is expected ; 400 subjects included in private structures and 440 subjected included in university hospital services (8 to 15 patients per investigator), including at least 40 patients with Gougerot Sjogren disease (disease prevalence = 0.1%).

The investigators of these study are 46 dentists working in private dental practices or private structures of dental care spread over the " Ile-de-France " and " Rhône-Alpes Auvergne " régions and 43 dentists working in 13 french university hospital services in odontology, including two hosting one consultation for Gougerot Sjogren disease, from the ReCOL network (Recherche Clinique en Odontologie Libérale).