Effect of the treatment of root surface-adhered necrotic periodontal ligament with propolis or fluoride in delayed rat tooth replantation.
OBJECTIVE
The purpose of this study was to evaluate the application of 15 % propolis and 2 % acidulated-phosphate sodium fluoride solutions on the root surface-adhered necrotic cemental periodontal ligament in delayed tooth replantation.


METHODS
Thirty Wistar rats (Rattus norvegicus, albinus) had their right upper incisor extracted and maintained in dry storage for 60 min. After this period, the dental papilla, enamel organ, and pulp tissue were removed, and the animals were randomly assigned to three groups: group I = immersion in saline for 10 min; group II = immersion in a 2 % acidulated-phosphate sodium fluoride solution for 10 min; and group III = immersion in a 15 % propolis and propylene glycol solution for 10 min. The root canals were filled with a calcium hydroxide paste and the teeth were replanted.


RESULTS
Inflammatory resorption, replacement resorption, and ankylosis were observed in all groups without a statistically significant difference (p > 0.05) among them.


CONCLUSIONS
Under the tested conditions, the application of fluoride or propolis on root surface-adhered necrotic periodontal ligament did not favor the healing process in delayed tooth replantation.
Department of Surgery and Integrated Clinics, Araçatuba Dental School, Univ Estadual Paulista - UNESP, Araçatuba, Brazil.
Sônia Regina
SR
Panzarini
Araçatuba Dental School, UNESP- Univ Estadual Paulista, Araçatuba, Brazil.
Carolina Chieregatto
CC
Nonato
Department of Surgery and Integrated Clinics, Araçatuba Dental School, Univ Estadual Paulista - UNESP, Araçatuba, Brazil.
Jéssica Lemos
JL
Gulinelli
Department of Surgery and Integrated Clinics, Araçatuba Dental School, Univ Estadual Paulista - UNESP, Araçatuba, Brazil.
Wilson Roberto
WR
Poi
Department of Surgery and Integrated Clinics, Araçatuba Dental School, Univ Estadual Paulista - UNESP, Araçatuba, Brazil.
Celso Koogi
CK
Sonoda
Department of Surgery and Integrated Clinics, Araçatuba Dental School, Univ Estadual Paulista - UNESP, Araçatuba, Brazil. celiatomiko@foa.unesp.br.|Faculdade de Odontologia de Araçatuba, UNESP, Disciplina de Clínica Integrada, Rua José Bonifácio, 1193, Bairro Vila Mendonça, 16015-050, Araçatuba, São Paulo, Brazil. celiatomiko@foa.unesp.br.
Célia Tomiko Matida Hamata
CTMH
Saito
Program in Dental, Araçatuba Dental School, Univ Estadual Paulista - UNESP, Araçatuba, Brazil.
Heloisa Fonseca
HF
Marão
D000818:Animals; D005459:Fluorides / Q000008:administration & dosage*; D009336:Necrosis; D010513:Periodontal Ligament / Q000187:drug effects* / Q000473:pathology; D011429:Propolis / Q000008:administration & dosage*; D051381:Rats; D014090:Tooth Replantation
D011429:Propolis; D005459:Fluorides