Clinical efficiency of standard metal crowns usage for temporary molar restoration in child dentistry according to three years of observation

Article contains results of 3 year study of 2 groups of children age 3-9, whose molars were restored using different techniques after treatment of chronic fibrous pulpitis. In first group 128 temporary molars were restored using sealing materials (glass ionomer cements, compomers), In second group 106 temporary molars were restored using standard metal crowns (3М ESPE USA). After teeth extraction because of inflammation or natural loss clinical efficiency of different restoration methods for coronal part was evaluated using clinical and radiographic methods and also electron microscopy data. Caries rate among children age 3-7 during 3 years was detected in both groups. According to clinical and radiographic observation, percentage of stable teeth, percentage of teeth that need to be retreated, and percentage of extracted teeth due to periodontal pathology was identified in each group. In first group among 128 teeth, which initially were restored using sealing materials, during 3 year evaluation period retreatment because of poor stability of restoration was performed 201 times (157%), 47 teeth were extracted (37%). In second group among 106 teeth restored with standard crowns during 3 year evaluation period retreatment was performed 33 times (31%) and 8 teeth were extracted (7,5%). According to scanning electron microscopy all specimens of teeth that were subjected to premature loss due to periodontal infection demonstrated restoration fitting deficiency. Temporary molars restored with standard crowns and lost due to second dentition demonstrated good crown and cement fitting. Caries rate evaluation among group of children 3-7 years show high caries increment (1,44) among patients with seals compared to patients with standard crowns (0,66). We recommend including temporary molar restoration using standard metal crowns into routine protocols.

детская стоматология, реставрация временных моляров, стандартные металлические коронки, хронический фиброзный пульпит, child dentistry, temporary molar restoration, standard metal crowns, chronic fibrous pulpitis

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