Mechanical removal of necrotic periodontal ligament by either Robinson bristle brush with pumice or scalpel blade. Histomorphometric analysis and scanning electron microscopy


Autoria(s): Esper, Helen Ramon; Regina, Sonia Panzarini; Poi, Wilson Roberto; Sonoda, Celso Koogi; Casatti, Cláudio Aparecido
Contribuinte(s)

Universidade Estadual Paulista (UNESP)

Data(s)

26/02/2014

20/05/2014

26/02/2014

20/05/2014

01/12/2007

Resumo

One of the important factors accounting for successful delayed replantation of avulsed teeth is seemingly the type of root surface treatment. Removal of necrotic cemental periodontal ligament remnants may prevent the occurrence of external root resorption, which is the major cause of loss of teeth replanted in such conditions. The purpose of this study was to compare the efficacy of two mechanical techniques for removal of root-adhered periodontal ligament. Preservation or removal of the cementum layer concomitantly with these procedures was also assessed. Forty-five roots of healthy premolars extracted for orthodontic purposes were selected. After extraction, the teeth were kept dry at room temperature for 1 h and then immersed in saline for rehydration for an additional 10 min. Thereafter, the roots were assigned to three groups, as follows: group 1 (control) - the cemental periodontal ligament was preserved; group 2 - removal of the periodontal ligament by scraping root surface with a scalpel blade (SBS); group 3 - periodontal ligament remnants were removed using a Robinson bristle brush at low-speed with pumice/water slurry (RBP). The specimens were analysed histomorphometrically and examined by scanning electron microscopy. The quantitative and qualitative analyses of the results showed that the RBP technique was significantly more effective than the SBS technique for removal of the periodontal ligament remnants adhered to root surface. Both techniques preserved the cementum layer.

Formato

333-339

Identificador

http://dx.doi.org/10.1111/j.1600-9657.2006.00472.x

Dental Traumatology. Oxford: Blackwell Publishing, v. 23, n. 6, p. 333-339, 2007.

1600-4469

http://hdl.handle.net/11449/14935

10.1111/j.1600-9657.2006.00472.x

WOS:000250728400003

Idioma(s)

eng

Publicador

Blackwell Publishing

Relação

Dental Traumatology

Direitos

closedAccess

Palavras-Chave #delayed tooth replantation #periodontal ligament #cementum
Tipo

info:eu-repo/semantics/article