Retention proposal in complex cavities.

Background: Dental Operatory is the main structure in which Odontology lies. It is not an easy discipline that gives enjoyable results with little effort due to the difficulties that a correct reconstruction of a destroyed dental element offers.The frequency with which pulpar injury occurs while anchoring additional retainers in complex cavities, the technical difficulties the lack of these devices cause and the need to simplify dental procedures lead this study to show the advantages to substitute additional retainers for a retainer surcus. Method: An observational descriptive study was applied to 53 patients(42% of the universe ), sample which was selected by means of a simple randomized sample . From a proximal-occlusal cavity, the preparations were extended in a box-like shape towards the bucal or lingual region and the additional retainers were substituted for a surcus which was performed in the gingival wall of the preparation. Calcium Hydroxide of rapid dryness was used as a cavity cover and Policarboxilate cement as a base; then the amalgam restoration was performed. The number of restorations were studied taking into account the patient´s age and the failures due to fractures of amalgam, loss of vitality and periapical changes were assessed taking into consideration the patient´s age and a one- year follow up. Results: Most of the amalgam restorations were performed in patients aged from 35 to 59 years and the relative frequencies due to fractures of amalgam, loss of vitality and periapical changes were very low. Conclusion: The substitution of additional retainers for a retainer surcus in complex cavities of vital molars showed to be advantageous because it guarantees a less degree of pulpar damage and less pulpar damage

Dental health state in the 20 year-old population and more in Cienfuegos province.

<strong>Background:</strong> The absence of consice data of some indicators in the stomatological subsystem of our province difficults the knowledge of the real situation of the dental health in our province population. <strong><br />Objetive:</strong> to determine some epidemiological indicators related to dental health in the 20 year-old population and more in Cienfuegos province. <strong><br />Method:</strong> a descriptive epidemiologcal study. Methods: 253 621 patients in a range of 20 years old and more. All health areas including municipalities were taken into consideration from May to June 2004. <strong><br />Results:</strong> The kind of denture more demanded for its rehabilitation by the population was the upper and the lower one. The highest indicators of cavities and exodonties were found in the 35 to 59 year-old group of patient as well as in the rural areas. The anatomic localization of cavity lesions were predominant in the posterior dental sector with a relation between sectors of 1:1,7. The lowest percetange in the covering range of stomatological attention was found in the 35 to 59 year-old group with 5 and 18 % in the majority of the municipalities. <strong><br />Conclusions:</strong> Through this investigation the behaviour of proposed indicators were evaluated as well as the necesities of treatment to establish future strategies of work in order to improve the dental health in the population.<strong><br /></strong