Application of Preformed Metal Crowns on Class II Carious Lesions on Primary Molars /// Приложение на преформирани метални коронки при втори клас кариозни лезии на временни молари

The aim of this thesis is to represent the results of the study of the approximal caries prevalence on primary molars in the primary and the early mixed dentition, as well as the possibilities for treatment and restoration with preformed metal crowns. According to the clinical study the intensity of the caries in Varna is significantly high. The relative share of the aproximal caries in the age of 5-7 years significantly prevails the occlusal caries. The average distribution of the approximal caries is 3 per child. The caries treatment of is a main problem among children which imposes finding more atraumatic, concerning the psyche, methods of caries management. Parents’ requirements about the aesthetics of the restorations, as well as the properties of the filling materials and children’s behavior to the dental treatment, put some limits concerning the proper choice of obturation material. Nowadays the most commonly used filling material for primary molars restorations are GIC. They have a very good biological activity (fluor releasing potential) to hard tooth tissues, provide chemical bond with the tooth’s structures. Thus these materials do not require any additional retentions in the prepared cavities which preserve the healthy dental structures. In addition, they are quite tolerant to moisture. One of the main disadvantages is the low mechanical durability. More than 1/3 of the GIC fail in 2 years after their application. The Hall technique is well accepted by children and their parents. It does not traumatize children’s psyche as the method avoids the usage of rotary instruments and local anaesthesia. Most of the children feel insignificant discomfort while the Hall teqchnique is performed.

Authors dc:creator

• Dimitrov, Evgeni
• Димитров, Евгени

• dental caries
• primary teeth
• metal crown
• primary molar
• the Hall technique
• Детска дентална медицина / Paediatric Dentistry

Repository record dc:identifier

http://repository.mu-varna.bg/handle/nls/393

OAI identifier oai:identifier

oai:repository.mu-varna.bg:nls/393