Biomonitoring of children and adolescents using orthodontic appliances made of acrylic resins through micronucleus testing of exfoliated buccal and palatal mucosa cells.
Am J Orthod Dentofacial Orthop
; 160(2): 193-199, 2021 Aug.
Article
en En
| MEDLINE
| ID: mdl-33975748
ABSTRACT
INTRODUCTION:
The present study aimed to investigate the occurrence of micronuclei and the degenerative nuclear alterations indicative of apoptosis and necrosis in the exfoliated buccal and palatal mucosa cells of children and adolescents using orthodontic appliances made of self-curing acrylic resins.METHODS:
The micronuclei and nuclear alterations were evaluated in a minimum of 2000 cells collected from the cheeks and palates of 30 patients of both sexes, aged between 6 and 12 years. The cell evaluations were performed before appliance installation and 15 to 21 days after installation. A conditional test was used. In all analyses, the significance level was 5%.RESULTS:
No differences in the occurrence of micronuclei or the nuclear degenerative changes indicative of apoptosis and necrosis were observed in the cheek cells between the 2 time points (P > 0.05). However, evaluation of the palate cells revealed a significant increase in the occurrence of micronuclei and the nuclear alterations indicative of apoptosis (P < 0.01) but not of karyolysis (P > 0.05).CONCLUSIONS:
Direct contact of orthodontic appliances made of acrylic resins with the oral mucosa increases the incidence of chromosomal damage and degenerative nuclear alterations.
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Resinas Acrílicas
/
Monitoreo Biológico
Límite:
Adolescent
/
Child
/
Female
/
Humans
/
Male
Idioma:
En
Revista:
Am J Orthod Dentofacial Orthop
Asunto de la revista:
ODONTOLOGIA
/
ORTODONTIA
Año:
2021
Tipo del documento:
Article