Retention of fissure sealants using two different methods of application in teeth with hypomineralised molars (MIH): a 4 year clinical study.
Eur Arch Paediatr Dent
; 10(4): 223-6, 2009 Dec.
Article
em En
| MEDLINE
| ID: mdl-19995506
ABSTRACT
AIM:
This was to evaluate the retention rate of fissure sealants applied to MIH molars with occlusal enamel opacities, using two different application methods after 4 years.METHODS:
54 children exhibiting molars with MIH aged 6-7 years, participated in the study. SELECTION CRITERIA presence of at least 2 fully erupted caries-free maxillary or mandibular first permanent molars in the opposite sides of the mouth, both with occlusal enamel opacities without breakdown. Following parental consent, sealants were applied using a half-mouth experimental design. Group A On a randomly assigned first molar on one side of the mouth sealants Fissurit were placed using a single bottle adhesive system (One-step prior to sealant application. Group B Sealants were applied on the contra-lateral molar using the conventional etch and seal technique. Children were seen biannually when a preventive program was applied, without replacing any lost sealant.RESULTS:
After 4 years, 47 sets of molars (94 teeth) were available for blind evaluation. Teeth in Group A presented a better retention rate; 70.2% were fully sealed, 29.7% partly sealed and none unsealed (lost sealant). Group B revealed 25.5% fully sealed, 44.6% partly sealed and 29.7% unsealed teeth. STATISTICS Differences between groups A and B were statistically significant (p<0.001). Also both groups revealed a decreasing retention rate over the 4-year period (p<0.001). There was no difference in dental caries increment rate and enamel breakdowns at the end of the study (p>0.01).CONCLUSIONS:
In hypomineralised molars with occlusal opacities sealants appear to have greater retention when applied using 5th generation adhesive systems prior to sealant.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Selantes de Fossas e Fissuras
/
Colagem Dentária
/
Desmineralização do Dente
/
Dente Molar
Tipo de estudo:
Clinical_trials
/
Observational_studies
/
Prognostic_studies
Limite:
Child
/
Humans
Idioma:
En
Ano de publicação:
2009
Tipo de documento:
Article