title: Standardized propolis extract and calcium hydroxide as pulpotomy agents in primary pig teeth.
abstract: OBJECTIVE
  The purpose of this study was to evaluate the histological features of the pulp tissue in primary pig teeth submitted to pulpotomy and capped with calcium hydroxide-based and standardized propolis extract-based pastes, and the combination of these pastes.
  
  
  METHODS
  Nine 4-month-old male pigs were used in this study, which were distributed into 4 groups, according to the studied pastes: Group 1-calcium hydroxide; Group2-standardized propolis extract; Group 3-combination of pastes 1 and 2 in the proportion 1:1; and Group  4-control. The teeth used for the pulpotomy were the 4 mandibular primary incisors.
  
  
  RESULTS
  After 7, 21, and 42 days, the animals were killed and the teeth were re-moved for histological analysis. At 42 days, all teeth in Groups 1 to 3 presented a complete hardtissue barrier  and the pulp tissue beneath was without inflammation.
  
  
  CONCLUSIONS
  According to these findings, calcium hydroxide and standardized propolis extract favored the formation of a hard tissue barrier in primary pig teeth submitted to pulpotomy.
authors: School of Dentistry, University of Ribeirao Preto, Sao Paulo, Brazil.
authors: José Estevam Vieira
authors: JE
authors: Ozório
authors: Luiz Fernando de Oliveira E Silva
authors: LF
authors: Carvalho
authors: Danilo Alessandro
authors: DA
authors: de Oliveira
authors: Manoel Damião
authors: MD
authors: de Sousa-Neto
authors: Danyel Elias da Cruz
authors: DE
authors: Perez
mesh_terms: D000818:Animals; D002126:Calcium Hydroxide / Q000494:pharmacology*; D003785:Dental Pulp Capping / Q000379:methods*; D003790:Dental Pulp Necrosis; D007180:Incisor / Q000601:surgery*; D008297:Male; D011429:Propolis / Q000494:pharmacology*; D011672:Pulpotomy; D013552:Swine; D014094:Tooth, Deciduous / Q000601:surgery
chemical_list: D011429:Propolis; D002126:Calcium Hydroxide