Survival of extensive restorations in primary molars: 15-year practice-based study

Int J Paediatr Dent. 2018 Mar;28(2):249-256. doi: 10.1111/ipd.12348. Epub 2017 Dec 3.

Abstract

Background: Caries decline in the western world is accompanied by strong polarization among children; 8% of Finnish 5-year-olds having 76% of untreated caries. This high caries risk group needs preventive and restorative strategies.

Aim: To explore survival of extensive restorations in primary molars.

Design: This study was based on health records from 2002 to 2016 of children under 18 years.

Results: Of severely affected primary molars (n = 1061), 41% were restored with preformed metal crowns (PMCs), 38% with glass-ionomer cement (GIC)/polyacid-modified resin composite (PAMRC)/resin-modified GIC (RMGIC), and 21% with resin composites (RC). Younger children (3-8) received 97% of the PMCs and 86% of GIC/PAMRC/RMGIC; older ones (≥9) 91% of the RC restorations. Neither amalgam nor indirect restorations were registered. General dentists (GDs) engaged in primary care restored with GIC/PAMRC/RMGIC (52%) or RC (48%). GDs in general anesthesia care service placed 66% and specializing/specialized dentists 31% of PMCs. PMCs had lower failure rate (1.4% vs 3.0%) than GIC/PAMRC/RMGIC (P = 0.001). Choosing PMCs reduced patient visits compared to other restorations (P < 0.001).

Conclusions: Severely affected primary molars of children at high caries risk are better managed, using PMCs to optimize the resources in public oral health services.

MeSH terms

  • Adolescent
  • Age Factors
  • Child
  • Child, Preschool
  • Dental Caries / epidemiology
  • Dental Caries / surgery
  • Dental Restoration Failure / statistics & numerical data*
  • Dental Restoration, Permanent* / adverse effects
  • Dental Restoration, Permanent* / statistics & numerical data
  • Female
  • Finland / epidemiology
  • Humans
  • Male
  • Molar / surgery*
  • Retrospective Studies
  • Tooth, Deciduous / surgery*