A study on the survival of primary molars with intact and with defective restorations

Abstract

Survival rates for primary molars with intact and defective amalgam and ART restorations were high. The 3-year survival rate of primary molars with intact restorations was significantly higher than that of primary molars with defective restorations.

Prevalence of defective restorations and factors associated with re‐intervention in primary teeth: A retrospective university‐based study

“…Nevertheless, due to the relatively short lifespan of primary teeth, the decision for re‐intervention in a defective restoration is not always an easy task. A previous study compared the survival rates of primary molars with intact and defective restorations . The survival rate of primary molars with intact restorations was higher (96.3%) than primary molars with defective restorations (75.9%) over a 3‐year period.…”

“…The survival rate of primary molars with intact restorations was higher (96.3%) than primary molars with defective restorations (75.9%) over a 3‐year period. Based on results, it was suggested that the recommendation to replace or to repair a defective restoration in primary teeth should consider several factors such as type of failure, age (related to tooth exfoliation), oral hygiene standards, and access to fluoride sources of the patients . Previous studies have already shown the detrimental effects of poor oral hygiene and high caries‐risk children on restoration survival of primary teeth …”

“…It has been demonstrated that re‐restoring primary molars with defective restorations may not always be necessary. Failed restorations that had not been restored survived without pain or sepsis in most cases over 3‐year follow‐up . Conversely, the survival rate of primary molars with intact restorations was higher than primary molars with defective restorations …”

“…Restoration replacement is the most common treatment for managing defective restorations, being well accepted within pediatric dentistry . Recurrent caries and restoration fracture are the main reasons for failure in posterior teeth, whereas failures related to esthetic such as color, anatomic form, and staining, frequently lead to the re‐intervention of anterior restorations .…”

“…Recommendation to re‐restore or to repair a defective restoration in primary teeth should not be determined exclusively by the assessment of the restoration itself. It should also include an analysis of the type of the restorative failure to determine whether the re‐exposed cavity is easy to clean or not . Moreover, factors related to patients such as caries activity and patient's age, related to physiologic tooth exfoliation, should be considered.…”