SEM Study of apical morphological alterations in primary teeth with vital and necrotic pulps.
This study evaluated, by SEM, the morphology of human primary teeth roots. Twenty-four teeth were divided into 3 groups: pulp vitality (group I) and pulp necrosis without (group II) and with apical periodontitis (group III). Roots were analyzed by the presence of periodontal ligament (PDL) fibers and resorption areas. In groups I and II, presence of PDL fibers and absence of resorption were observed in all cases (100%), while all specimens (100%) of group III showed no PDL fibers and resorption areas. In conclusion, there are morphological differences in the apical region of primary teeth with different pulpal and periapical pathologies.
da Silva
Léa Assed Bezerra
LA
Department of Pediatric, Preventive and Community Dentistry, University of São Paulo, Ribeirão Preto, Brazil. lea@forp.usp.br
Fernandes
Patrícia Motta
PM
da Silva
Raquel Assed Bezerra
RA
Nelson-Filho
Paulo
P
Rocha
Lenaldo Branco
LB
Rossi
Marcos A
MA
D002648:Child; D002675:Child, Preschool; D003782:Dental Pulp / Q000648:ultrastructure*; D005260:Female; D006801:Humans; D008297:Male; D008855:Microscopy, Electron, Scanning / Q000379:methods*; D009336:Necrosis; D010513:Periodontal Ligament / Q000648:ultrastructure; D014092:Tooth Root / Q000648:ultrastructure*; D014094:Tooth, Deciduous / Q000648:ultrastructure*