Color changes of esthetic orthodontic ligatures evaluated by orthodontists and patients: a clinical study
Dental press j. orthod. (Impr.)
; 21(5): 53-57, Sept.-Dec. 2016. tab, graf
Article
in En
| LILACS
| ID: biblio-828659
Responsible library:
BR1.1
ABSTRACT
ABSTRACT Objective:
To evaluate in vivo changes in the color of esthetic elastomeric ligatures from different manufacturers.Methods:
Four widely used commercial brands of elastomeric ligatures were selected and used in 20 adult patients in a split-mouth design. The ligatures were evaluated by orthodontists and patients in a double-blind manner on the day the ligatures were placed (T0) and 30 days after intraoral exposure (T1) by means of a system of staining scores. Groups were compared by Friedman test with p < 0.05.Results:
Orthodontists and patients reported similar staining scores (p > 0.05). Results showed that all brands underwent significant staining when exposed to the intraoral environment. Modular-crystal MorelliTM (Sorocaba, SP, Brazil) showed the highest degree of staining with the median reaching the maximum value (3); while the other brands (3M UnitekTM, American OrthodonticsTM and GAC DentsplyTM) showed the median equal to 1 (p < 0.001). A large individual variability in the degree of staining was also found for all brands.Conclusions:
All four brands of esthetic ligatures showed significant staining, which appeared to be more pronounced for the MorelliTM brand. Changes in color of the elastomeric ligatures were perceived similarly by patients and orthodontists. The industry needs to improve the color stability of esthetic ligatures.RESUMO
RESUMO Objetivo:
avaliar, in vivo, as alterações na cor de elastômeros estéticos de diferentes fabricantes.Métodos:
quatro marcas comerciais de elastômeros amplamente utilizados foram selecionadas e utilizadas em 20 pacientes adultos, por meio desse estudo com delineamento do tipo boca dividida. As ligaduras foram avaliadas por ortodontistas e pacientes, com método duplo-cego, no dia que as ligaduras foram instaladas (T0) e após 30 dias em exposição ao meio intrabucal (T1), atribuindo escores ao manchamento dessas. Os grupos foram comparados pelo teste de Friedman, com p < 0,05.Resultados:
os ortodontistas e pacientes relataram escores semelhantes de manchamento (p > 0,05). Os resultados mostraram que todas as marcas analisadas apresentaram alterações significativas na coloração, quando foram expostas ao ambiente intrabucal. O modelo Modular-cristal (Morelli, Sorocaba/SP, Brasil) mostrou o maior grau de manchamento, com a mediana atingindo o valor máximo (3), enquanto nas outras marcas (3M Unitek, American Orthodontics e GAC Dentsply) a mediana foi igual a 1 (p < 0,001). Também se verificou uma grande variabilidade individual no grau de manchamento, para todas as marcas.Conclusões:
Todas as quatro marcas de elastômeros estéticos mostraram manchamento significativo, que pareceu ser mais pronunciado para a marca Morelli. As alterações de cor nos elastômeros foram percebidas de forma semelhante pelos pacientes e pelos ortodontistas. Assim, a indústria precisa melhorar a estabilidade de cor dos elastômeros estéticos.Key words
Full text:
1
Collection:
01-internacional
Database:
LILACS
Main subject:
Orthodontic Appliances
/
Color
/
Elastomers
/
Esthetics, Dental
Type of study:
Clinical_trials
/
Prognostic_studies
Limits:
Adult
/
Female
/
Humans
/
Male
Language:
En
Journal:
Dental press j. orthod. (Impr.)
Journal subject:
ORTODONTIA
Year:
2016
Document type:
Article
Affiliation country:
Brazil
Country of publication:
Brazil