Influence of the cavity-size on the survival rate of proximal ART restorations in primary molars

Citation:
Kemoli AM, van Amerongen WE. "Influence of the cavity-size on the survival rate of proximal ART restorations in primary molars." Inter J Paediatr Dent. 2009;19:423-430.

Abstract:

Aim: The objective of the study was to determine the influence of the experience of the
operator and the assistant on the survival rate of proximal ART-restorations after 2 years
when placed using two methods of tooth-isolation and three glass ionomer cementbrands.
Study design: A clinical intervention study.
Methods: Each of the 804 children aged 6 to 8 years received one proximal restoration
in their primary molars. The restorations were placed by ‘experienced/inexperienced’
operators randomly paired with ‘experienced/inexperienced’ assistants. They used
atraumatic restorative treatment (ART) approach, 3 brands of glass ionomer cements
(GIC) and 2 tooth-isolation methods (rubber dam and cotton rolls) to restore the
cavities. Trained and calibrated evaluators evaluated the restorations, soon after
placement and after two years.
Statistics: The data collected were analyzed using SPSS 14.0, to determine and relate
the survival rate of the restorations to the operator and assistant with respect to the
other factors such as the restorative material used and the isolation method applied.
Results: After 2 years, the survival rate of the restorations was 30.8%. In general, there
were no statistical significant differences in the survival rate of the restorations made by
the ‘experienced’ vs ‘inexperienced’ operators, but individually, the operator with more
experience was associated with significantly higher survival rate of the restorations. The
‘experienced’ assistants were associated with significantly higher survival rates of the
restorations. The most ‘experienced’ operator paired with any ‘experienced’ assistant and using rubber dam tooth-isolation method, was associated with a significantly higher
survival rate of the restorations.
Conclusions: The combination of the ‘experienced’ operator and assistant using rubber
dam tooth-isolation method had the best chance of survival for proximal ART
restorations, irrespective of the material-brand used.

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